Tokachi Subprefecture (literally "Tokachi Comprehensive Promotion Bureau") (十勝総合振興局, Tokachi-sōgō-shinkō-kyoku) is a subprefecture of Hokkaido Prefecture, Japan, corresponding to the old province of Tokachi.

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Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.

ⓘ Gold

Mineral List

Mineral list contains entries from the region specified including sub-localities

27 valid minerals. 1 (TL) - type locality of valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

ⓘ Camptonite

ⓘ Lamprophyre

ⓘ Rhyolite

Detailed Mineral List:

ⓘ Aegirine-augite

Formula: (Na_aCa_bFe²⁺_cMg_d)(Fe³⁺_eAl_fFe²⁺_gMg_h)Si₂O₆

Locality: Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Nemoto, T. (1934). Preliminary Note on Alkaline Rhyolites from Tokati, Hokkaido. Journal of the Faculty of Science, Hokkaido Imperial University. Ser. 4, Geology and mineralogy, 2(4), 299-321. OWADA, M., NANAYAMA, F., SHIMURA, T., & Osanai, Y. (1992). Lamprophyre from the Nakanogawa group in the central zone of Hokkaido, northern Japan. Journal of Mineralogy, Petrology and Economic Geology, 87(2), 62-67.

ⓘ Albite var. Anorthoclase

Formula: (Na,K)AlSi₃O₈

Locality: Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ 'Alkali Feldspar'

Locality: Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Allophane

Formula: (Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O

Locality: Bihoro Mine, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Okamoto collection (curated at the Geological Survey museum, Japan)

ⓘ 'Amphibole Supergroup'

Formula: AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂

Locality: Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ 'Andradite-Grossular Series'

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Bamba, Takeo (1981) Nickeliferous Pyrrhotite Deposits and Ores from the Oshirabetsu Mine, Tokachi Province, Hokkaido. Jour. Fac. Sci., Hokkaido Univ., Ser. IV, vol. 19, no. 4, Februaly, 1981, pp. 415-438.

ⓘ 'Apatite'

Formula: Ca₅(PO₄)₃(Cl/F/OH)

Locality: Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Augite

Formula: (Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆

Locality: Akan mine, Ashoro-cho (Asyoro-tyo), Ashoro District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Suzuki, J. et al (1957) Journal of the Faculty of Science, Hokkaido University, Ser. 4, 9, 501-518.

ⓘ 'Biotite'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂

Localities:

Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan
Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Calcite

Formula: CaCO₃

Localities:

Shiowakka, Ashoro-cho (Asyoro-tyo), Ashoro District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan
Nukabira, Obihiro City, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Ito (1993) Ganseki-Koubutsu-Koshogaku Zasshi, 88, 485-491.

ⓘ Chalcopyrite

Formula: CuFeS₂

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ 'Chlorite Group'

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Cubanite ?

Formula: CuFe₂S₃

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Diopside

Formula: CaMgSi₂O₆

Localities:

Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan
Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Diopside var. Salite

Locality: Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ 'Fayalite-Forsterite Series'

Locality: Akan mine, Ashoro-cho (Asyoro-tyo), Ashoro District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Suzuki, J. et al (1957) Journal of the Faculty of Science, Hokkaido University, Ser. 4, 9, 501-518.

ⓘ 'Feldspar Group'

Locality: Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ 'Glass'

Locality: Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Graphite, etc.

Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Graphite

Formula: C

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Description: Rock forming mineral at this locality; however, very interesting morphology and occurrence for the species.

Reference: Fujiwara, T. (1994): Nihon-no-Koubutsu; Bamba, Takeo (1981) Nickeliferous Pyrrhotite Deposits and Ores from the Oshirabetsu Mine, Tokachi Province, Hokkaido. Jour. Fac. Sci., Hokkaido Univ., Ser. IV, vol. 19, no. 4, Februaly, 1981, pp. 415-438.

ⓘ 'Heulandite Subgroup'

Locality: Nukabira, Obihiro City, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Hiroshi KONNO and Morihiro AOKI (1977): Yugawaralite from Nukabira, Hokkaido. Mineralogical Journal, 8, 456-462.

ⓘ Hokkaidoite (TL)

Formula: C₂₂H₁₂

Type Locality:

Reference: Tanaka, R., Hagiwara, A., Ishibashi, T., Inoue, Y.(2023): Hokkaidoite, IMA 2022-104, in: CNMNC Newsletter 71, Eur. J. Mineral.: 35, https://doi.org/10.5194/ejm-35-75-2023. http://forum.amiminerals.it/viewtopic.php?f=5&t=18473

ⓘ 'Hypersthene'

Formula: (Mg,Fe)SiO₃

Locality: Akan mine, Ashoro-cho (Asyoro-tyo), Ashoro District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Suzuki, J. et al (1957) Journal of the Faculty of Science, Hokkaido University, Ser. 4, 9, 501-518.

ⓘ Ikaite

Formula: CaCO₃ · 6H₂O

Locality: Shiowakka, Ashoro-cho (Asyoro-tyo), Ashoro District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Genko. 91(6). 209-219

ⓘ Ilmenite

Formula: Fe²⁺TiO₃

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Kaersutite

Formula: NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂

Locality: Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Laumontite

Formula: CaAl₂Si₄O₁₂ · 4H₂O

Locality: Nukabira, Obihiro City, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Hiroshi KONNO and Morihiro AOKI (1977): Yugawaralite from Nukabira, Hokkaido. Mineralogical Journal, 8, 456-462.

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ 'Mica Group'

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: John Jaszczak specimen.

ⓘ Monohydrocalcite

Formula: CaCO₃ · H₂O

Locality: Shiowakka, Ashoro-cho (Asyoro-tyo), Ashoro District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Ito (1993) Ganseki-Koubutsu-Koshogaku Zasshi, 88, 485-491.

ⓘ Mordenite

Formula: (Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O

Locality: Nukabira, Obihiro City, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Hiroshi KONNO and Morihiro AOKI (1977): Yugawaralite from Nukabira, Hokkaido. Mineralogical Journal, 8, 456-462.

ⓘ Nickeline ?

Formula: NiAs

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Opal

Shikaribetsu Lake, Shikaoi, Kato District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Opal

Formula: SiO₂ · nH₂O

Localities:

Akan mine, Ashoro-cho (Asyoro-tyo), Ashoro District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan
Shikaribetsu Lake, Shikaoi (Shikaoi-Chō), Kato District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Suzuki, J. et al (1957) Journal of the Faculty of Science, Hokkaido University, Ser. 4, 9, 501-518.

ⓘ Pentlandite

Formula: (Ni_xFe_y)_Σ9S₈

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Takaharu Araki collection; Bamba, Takeo (1981) Nickeliferous Pyrrhotite Deposits and Ores from the Oshirabetsu Mine, Tokachi Province, Hokkaido. Jour. Fac. Sci., Hokkaido Univ., Ser. IV, vol. 19, no. 4, Februaly, 1981, pp. 415-438.

ⓘ Prehnite

Formula: Ca₂Al₂Si₃O₁₀(OH)₂

Locality: Nukabira, Obihiro City, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Hiroshi KONNO and Morihiro AOKI (1977): Yugawaralite from Nukabira, Hokkaido. Mineralogical Journal, 8, 456-462.

ⓘ 'Pumpellyite Subgroup'

Formula: Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A

Locality: Nukabira, Obihiro City, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Hiroshi KONNO and Morihiro AOKI (1977): Yugawaralite from Nukabira, Hokkaido. Mineralogical Journal, 8, 456-462.

ⓘ Pyrite

Formula: FeS₂

Localities:

Akan mine, Ashoro-cho (Asyoro-tyo), Ashoro District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan
Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Suzuki, J. et al (1957) Journal of the Faculty of Science, Hokkaido University, Ser. 4, 9, 501-518.

ⓘ 'Pyroxene Group'

Formula: ADSi₂O₆

Locality: Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Pyrrhotite

Formula: Fe_1-xS

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: John Jaszczak specimen.; Bamba, Takeo (1981) Nickeliferous Pyrrhotite Deposits and Ores from the Oshirabetsu Mine, Tokachi Province, Hokkaido. Jour. Fac. Sci., Hokkaido Univ., Ser. IV, vol. 19, no. 4, Februaly, 1981, pp. 415-438.

ⓘ Quartz

Formula: SiO₂

Localities:

Akan mine, Ashoro-cho (Asyoro-tyo), Ashoro District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan
Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan
Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Suzuki, J. et al (1957) Journal of the Faculty of Science, Hokkaido University, Ser. 4, 9, 501-518.

ⓘ 'Serpentine Subgroup'

Formula: D₃[Si₂O₅](OH)₄

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Sulphur

Formula: S₈

Locality: Akan mine, Ashoro-cho (Asyoro-tyo), Ashoro District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Suzuki, J. et al (1957) Journal of the Faculty of Science, Hokkaido University, Ser. 4, 9, 501-518.

ⓘ 'Tourmaline'

Formula: AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Vaterite

Formula: CaCO₃

Locality: Shiowakka, Ashoro-cho (Asyoro-tyo), Ashoro District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Ito et al. (1999) Ganseki-Koubutsu-Koshogaku Zasshi, 94, 176-182.

ⓘ Violarite

Formula: Fe²⁺Ni³⁺₂S₄

Locality: Oshirabetsu, Hiroo-mura, Hiroo District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

ⓘ Yugawaralite

Formula: CaAl₂Si₆O₁₆ · 4H₂O

Locality: Nukabira, Obihiro City, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Reference: Konno, H., Aoki, M. (1977) Yugawaralite from Nukabira, Hokkaido. Mineralogical Journal: 8: 456-462.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Graphite	1.CB.05a	C
ⓘ	Sulphur	1.CC.05	S₈
Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Cubanite ?	2.CB.55a	CuFe₂S₃
ⓘ	Nickeline ?	2.CC.05	NiAs
ⓘ	Pentlandite	2.BB.15	(Ni_xFe_y)_Σ9S₈
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Violarite	2.DA.05	Fe²⁺Ni³⁺₂S₄
Group 4 - Oxides and Hydroxides
ⓘ	Ilmenite	4.CB.05	Fe²⁺TiO₃
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Opal	4.DA.10	SiO₂ · nH₂O
ⓘ	Quartz	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Ikaite	5.CB.25	CaCO₃ · 6H₂O
ⓘ	Monohydrocalcite	5.CB.20	CaCO₃ · H₂O
ⓘ	Vaterite	5.AB.20	CaCO₃
Group 9 - Silicates
ⓘ	Aegirine-augite	9.DA.20	(Na_aCa_bFe²⁺_cMg_d)(Fe³⁺_eAl_fFe²⁺_gMg_h)Si₂O₆
ⓘ	Albite var. Anorthoclase	9.FA.35	(Na,K)AlSi₃O₈
ⓘ	Allophane	9.ED.20	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
ⓘ	Augite	9.DA.15	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
ⓘ	Diopside	9.DA.15	CaMgSi₂O₆
ⓘ	var. Salite	9.DA.15	CaMgSi₂O₆
ⓘ	Kaersutite	9.DE.15	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
ⓘ	Laumontite	9.GB.10	CaAl₂Si₄O₁₂ · 4H₂O
ⓘ	Mordenite	9.GD.35	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
ⓘ	Prehnite	9.DP.20	Ca₂Al₂Si₃O₁₀(OH)₂
ⓘ	Yugawaralite	9.GB.15	CaAl₂Si₆O₁₆ · 4H₂O
Group 10 - Organic Compounds
ⓘ	Hokkaidoite (TL)	10.B0.	C₂₂H₁₂
Unclassified Minerals, Rocks, etc.
ⓘ	'Alkali Feldspar'	-
ⓘ	'Amphibole Supergroup'	-	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
ⓘ	'Andradite-Grossular Series'	-
ⓘ	'Apatite'	-	Ca₅(PO₄)₃(Cl/F/OH)
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
ⓘ	'Chlorite Group'	-
ⓘ	'Fayalite-Forsterite Series'	-
ⓘ	'Feldspar Group'	-
ⓘ	'Glass'	-
ⓘ	'Heulandite Subgroup'	-
ⓘ	'Hypersthene'	-	(Mg,Fe)SiO₃
ⓘ	'Mica Group'	-
ⓘ	'Pumpellyite Subgroup'	-	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
ⓘ	'Pyroxene Group'	-	ADSi₂O₆
ⓘ	'Serpentine Subgroup'	-	D₃[Si₂O₅](OH)₄
ⓘ	'Tourmaline'	-	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Hokkaidoite	C₂₂H₁₂
H	ⓘ Ikaite	CaCO₃ · 6H₂O
H	ⓘ Opal	SiO₂ · nH₂O
H	ⓘ Monohydrocalcite	CaCO₃ · H₂O
H	ⓘ Yugawaralite	CaAl₂Si₆O₁₆ · 4H₂O
H	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
H	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
H	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
H	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
H	ⓘ Allophane	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
H	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
H	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
H	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
B	Boron
B	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
C	Carbon
C	ⓘ Hokkaidoite	C₂₂H₁₂
C	ⓘ Ikaite	CaCO₃ · 6H₂O
C	ⓘ Graphite	C
C	ⓘ Vaterite	CaCO₃
C	ⓘ Monohydrocalcite	CaCO₃ · H₂O
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Ikaite	CaCO₃ · 6H₂O
O	ⓘ Vaterite	CaCO₃
O	ⓘ Quartz	SiO₂
O	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
O	ⓘ Hypersthene	(Mg,Fe)SiO₃
O	ⓘ Opal	SiO₂ · nH₂O
O	ⓘ Monohydrocalcite	CaCO₃ · H₂O
O	ⓘ Calcite	CaCO₃
O	ⓘ Yugawaralite	CaAl₂Si₆O₁₆ · 4H₂O
O	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
O	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
O	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
O	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
O	ⓘ Allophane	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
O	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
O	ⓘ Ilmenite	Fe²⁺TiO₃
O	ⓘ Diopside	CaMgSi₂O₆
O	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
O	ⓘ Albite var. Anorthoclase	(Na,K)AlSi₃O₈
O	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
O	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
O	ⓘ Pyroxene Group	ADSi₂O₆
O	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
F	Fluorine
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
F	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
F	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Na	Sodium
Na	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
Na	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Na	ⓘ Albite var. Anorthoclase	(Na,K)AlSi₃O₈
Na	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
Mg	Magnesium
Mg	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Mg	ⓘ Hypersthene	(Mg,Fe)SiO₃
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Mg	ⓘ Diopside	CaMgSi₂O₆
Mg	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Mg	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
Al	Aluminium
Al	ⓘ Yugawaralite	CaAl₂Si₆O₁₆ · 4H₂O
Al	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Al	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
Al	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Al	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Al	ⓘ Allophane	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Al	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Al	ⓘ Albite var. Anorthoclase	(Na,K)AlSi₃O₈
Al	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
Al	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Si	Silicon
Si	ⓘ Quartz	SiO₂
Si	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Si	ⓘ Hypersthene	(Mg,Fe)SiO₃
Si	ⓘ Opal	SiO₂ · nH₂O
Si	ⓘ Yugawaralite	CaAl₂Si₆O₁₆ · 4H₂O
Si	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Si	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
Si	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Si	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Si	ⓘ Allophane	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O
Si	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Si	ⓘ Diopside	CaMgSi₂O₆
Si	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Si	ⓘ Albite var. Anorthoclase	(Na,K)AlSi₃O₈
Si	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
Si	ⓘ Pyroxene Group	ADSi₂O₆
Si	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
P	Phosphorus
P	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
S	Sulfur
S	ⓘ Sulphur	S₈
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Violarite	Fe²⁺Ni₂³⁺S₄
S	ⓘ Cubanite	CuFe₂S₃
Cl	Chlorine
Cl	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Cl	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
K	Potassium
K	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
K	ⓘ Albite var. Anorthoclase	(Na,K)AlSi₃O₈
Ca	Calcium
Ca	ⓘ Ikaite	CaCO₃ · 6H₂O
Ca	ⓘ Vaterite	CaCO₃
Ca	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Ca	ⓘ Monohydrocalcite	CaCO₃ · H₂O
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Yugawaralite	CaAl₂Si₆O₁₆ · 4H₂O
Ca	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Ca	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
Ca	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Ca	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Ca	ⓘ Diopside	CaMgSi₂O₆
Ca	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Ca	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
Ca	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Ti	Titanium
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Ti	ⓘ Ilmenite	Fe²⁺TiO₃
Ti	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
Ti	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Fe	Iron
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Fe	ⓘ Hypersthene	(Mg,Fe)SiO₃
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Fe	ⓘ Violarite	Fe²⁺Ni₂³⁺S₄
Fe	ⓘ Ilmenite	Fe²⁺TiO₃
Fe	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Fe	ⓘ Cubanite	CuFe₂S₃
Ni	Nickel
Ni	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Ni	ⓘ Violarite	Fe²⁺Ni₂³⁺S₄
Ni	ⓘ Nickeline	NiAs
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Cubanite	CuFe₂S₃
As	Arsenic
As	ⓘ Nickeline	NiAs

Geochronology

Mineralization age: Late/Upper Cretaceous : 95.2 ± 4.8 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic Time

Rocks, Minerals and Events

Phanerozoic

Mesozoic

Cretaceous

Late/Upper Cretaceous

ⓘ Lamprophyre

95.2 ± 4.8 Ma

Tokati rhyolite dikes, Nakagawa District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan

Fossils

There are 24 fossil localities from the PaleoBioDB database within this region.

BETA TEST - These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences

373

Youngest Fossil Listed

0.01 Ma (Pleistocene)

Oldest Fossil Listed

89.8 Ma (Late/Upper Cretaceous)

Stratigraphic Units

Click here to view 21 stratigraphic units.

Fossils from Region

Click here to show the list.

Accepted Name	Hierarchy	Age
Makiyama genus	Animalia : Porifera : Demospongea : Poecilosclerida : *Makiyama*	23.03 - 15.97 Ma Miocene
Antalis genus	Animalia : Mollusca : Scaphopoda : Dentaliida : Dentaliidae : *Antalis*	15.97 - 11.608 Ma Miocene
Dentalium genus	Animalia : Mollusca : Scaphopoda : Dentaliida : Dentaliidae : *Dentalium*	28.4 - 11.608 Ma Cenozoic
Fissidentalium genus	Animalia : Mollusca : Scaphopoda : Dentaliida : Dentaliidae : *Fissidentalium*	3.6 - 2.588 Ma Cenozoic
Acmaea genus	Animalia : Mollusca : Gastropoda : Acmaeidae : *Acmaea*	3.6 - 2.588 Ma Cenozoic
Lottia genus	Animalia : Mollusca : Gastropoda : Lottiidae : *Lottia*	3.6 - 2.588 Ma Cenozoic
Bathybembix genus	Animalia : Mollusca : Gastropoda : Seguenziida : Eucyclidae : *Bathybembix*	3.6 - 2.588 Ma Cenozoic
Homalopoma genus	Animalia : Mollusca : Gastropoda : Trochida : Colloniidae : *Homalopoma*	15.97 - 2.588 Ma Cenozoic
Minolia genus	Animalia : Mollusca : Gastropoda : Trochida : Solariellidae : *Minolia*	15.97 - 11.608 Ma Miocene
Chlorostoma (Omphalius) subgenus	Animalia : Mollusca : Gastropoda : Trochidae : Chlorostoma : *Chlorostoma (Omphalius)*	3.6 - 2.588 Ma Cenozoic
Astraea (Pomaulax) subgenus	Animalia : Mollusca : Gastropoda : Turbinidae : Astraea : *Astraea (Pomaulax)*	3.6 - 2.588 Ma Cenozoic
Puncturella genus	Animalia : Mollusca : Gastropoda : Lepetellida : Fissurellidae : *Puncturella*	3.6 - 2.588 Ma Cenozoic
Umbonium genus	Animalia : Mollusca : Gastropoda : Trochidae : *Umbonium*	3.6 - 2.588 Ma Cenozoic
Acirsa genus	Animalia : Mollusca : Gastropoda : Epitoniidae : *Acirsa*	3.6 - 2.588 Ma Cenozoic
Amaea genus	Animalia : Mollusca : Gastropoda : Epitoniidae : *Amaea*	3.6 - 2.588 Ma Cenozoic
Ariadnaria genus	Animalia : Mollusca : Gastropoda : Littorinimorpha : Capulidae : *Ariadnaria*	3.6 - 2.588 Ma Cenozoic
Batillaria genus	Animalia : Mollusca : Gastropoda : Batillariidae : *Batillaria*	3.6 - 2.588 Ma Cenozoic
Crepidula genus	Animalia : Mollusca : Gastropoda : Littorinimorpha : Calyptraeidae : *Crepidula*	15.97 - 11.608 Ma Miocene
Cryptonatica genus	Animalia : Mollusca : Gastropoda : Littorinimorpha : Naticidae : *Cryptonatica*	15.97 - 11.608 Ma Miocene
Euspira genus	Animalia : Mollusca : *Euspira*	15.97 - 11.608 Ma Miocene
Littorina genus	Animalia : Mollusca : Gastropoda : Littorinimorpha : Littorinidae : *Littorina*	3.6 - 2.588 Ma Cenozoic
Mesalia genus	Animalia : Mollusca : Gastropoda : Turritellidae : *Mesalia*	23.03 - 15.97 Ma Miocene
Tectonatica genus	Animalia : Mollusca : Gastropoda : Littorinimorpha : Naticidae : *Tectonatica*	15.97 - 11.608 Ma Miocene
Triphora genus	Animalia : Mollusca : Gastropoda : Triphoridae : *Triphora*	3.6 - 2.588 Ma Cenozoic
Turritella genus	Animalia : Mollusca : Gastropoda : Turritellidae : *Turritella*	28.4 - 2.588 Ma Cenozoic
Antiplanes genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Pseudomelatomidae : *Antiplanes*	3.6 - 2.588 Ma Cenozoic
Colus (Aulacofusus) subgenus	Animalia : Mollusca : Gastropoda : Neogastropoda : Buccinidae : Colus : *Colus (Aulacofusus)*	3.6 - 2.588 Ma Cenozoic
Boreotrophon genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : *Boreotrophon*	3.6 - 2.588 Ma Cenozoic
Clathurella genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Clathurellidae : *Clathurella*	3.6 - 2.588 Ma Cenozoic
Inquisitor genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Pseudomelatomidae : *Inquisitor*	15.97 - 2.588 Ma Cenozoic
Japelion genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Buccinidae : *Japelion*	3.6 - 2.588 Ma Cenozoic
Mitrella genus	Animalia : Mollusca : *Mitrella*	3.6 - 2.588 Ma Cenozoic
Fulgoraria (Musashia) subgenus	Animalia : Mollusca : Gastropoda : Neogastropoda : Volutidae : Fulgoraria : *Fulgoraria (Musashia)*	3.6 - 2.588 Ma Cenozoic
Neptunea genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Buccinidae : *Neptunea*	28.4 - 2.588 Ma Cenozoic
Nucella genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : *Nucella*	15.97 - 11.608 Ma Miocene
Ocinebrellus genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : *Ocinebrellus*	3.6 - 2.588 Ma Cenozoic
Olivella genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Olividae : *Olivella*	3.6 - 2.588 Ma Cenozoic
Ophiodermella genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Borsoniidae : *Ophiodermella*	3.6 - 2.588 Ma Cenozoic
Priscofusus genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Fasciolariidae : *Priscofusus*	28.4 - 23.03 Ma Cenozoic
Sydaphera genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Cancellariidae : *Sydaphera*	3.6 - 2.588 Ma Cenozoic
Thais genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : *Thais*	3.6 - 2.588 Ma Cenozoic
Miralda genus	Animalia : Mollusca : Gastropoda : Pyramidellidae : *Miralda*	3.6 - 2.588 Ma Cenozoic
Odostomia genus	Animalia : Mollusca : *Odostomia*	3.6 - 2.588 Ma Cenozoic
Philippia genus	Animalia : Mollusca : Gastropoda : Architectonicidae : *Philippia*	3.6 - 2.588 Ma Cenozoic
Turbonilla genus	Animalia : Mollusca : Gastropoda : Pyramidellidae : *Turbonilla*	3.6 - 2.588 Ma Cenozoic
Acila genus	Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : *Acila*	28.4 - 23.03 Ma Cenozoic
Malletia genus	Animalia : Mollusca : Bivalvia : Nuculanida : Malletiidae : *Malletia*	23.03 - 15.97 Ma Miocene
Nucula genus	Animalia : Mollusca : Bivalvia : Nuculanida : Nuculanidae : *Nucula*	28.4 - 23.03 Ma Cenozoic
Nuculana genus	Animalia : Mollusca : Bivalvia : Nuculanida : Nuculanidae : *Nuculana*	3.6 - 2.588 Ma Cenozoic
Portlandia genus	Animalia : Mollusca : Bivalvia : *Portlandia*	28.4 - 2.588 Ma Cenozoic
Yoldia genus	Animalia : Mollusca : Bivalvia : Nuculanida : Yoldiidae : *Yoldia*	28.4 - 23.03 Ma Cenozoic
Anadara genus	Animalia : Mollusca : Bivalvia : Arcida : Arcidae : *Anadara*	3.6 - 2.588 Ma Cenozoic
Glycymeris genus	Animalia : Mollusca : Bivalvia : Arcida : Glycymerididae : *Glycymeris*	3.6 - 2.588 Ma Cenozoic
Limopsis genus	Animalia : Mollusca : Bivalvia : Arcida : Limopsidae : *Limopsis*	5.333 - 2.588 Ma Cenozoic
Pseudogrammatodon genus	Animalia : Mollusca : Bivalvia : Arcida : Parallelodontidae : *Pseudogrammatodon*	3.6 - 2.588 Ma Cenozoic
Acesta genus	Animalia : Mollusca : Bivalvia : Limida : Limidae : *Acesta*	3.6 - 2.588 Ma Cenozoic
Anomia genus	Animalia : Mollusca : Bivalvia : Pectinida : Anomiidae : *Anomia*	89.8 - 2.588 Ma Phanerozoic
Fortipecten genus	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Fortipecten*	3.6 - 2.588 Ma Cenozoic
Limatula genus	Animalia : Mollusca : Bivalvia : Limida : Limidae : *Limatula*	15.97 - 2.588 Ma Cenozoic
Mizuhopecten genus	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Mizuhopecten*	15.97 - 11.608 Ma Miocene
Ostrea genus	Animalia : Mollusca : Bivalvia : Ostreida : Ostreidae : *Ostraea*	15.97 - 11.608 Ma Miocene
Patinopecten genus	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Patinopecten*	3.6 - 2.588 Ma Cenozoic
Yabepecten genus	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Yabepecten*	3.6 - 2.588 Ma Cenozoic
Tellina (Cadella) subgenus	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Tellina : *Tellina (Cadella)*	3.6 - 2.588 Ma Cenozoic
Callista genus	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Callista*	3.6 - 2.588 Ma Cenozoic
Clinocardium genus	Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : *Clinocardium*	28.4 - 11.608 Ma Cenozoic
Corbicula genus	Animalia : Mollusca : Bivalvia : Venerida : Cyrenidae : *Corbicula*	3.6 - 2.588 Ma Cenozoic
Crassatella genus	Animalia : Mollusca : Bivalvia : Carditida : Crassatellidae : *Crassatella*	3.6 - 2.588 Ma Cenozoic
Cycladicama genus	Animalia : Mollusca : Bivalvia : Venerida : Ungulinidae : *Cycladicama*	3.6 - 2.588 Ma Cenozoic
Cyclocardia genus	Animalia : Mollusca : Bivalvia : Carditida : Carditidae : *Cyclocardia*	28.4 - 11.608 Ma Cenozoic
Dosinia genus	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Dosinia*	15.97 - 11.608 Ma Miocene
Dosinia (Kaneharaia) subgenus	Animalia : Mollusca : Bivalvia : Veneroidei : Veneridae : Dosinia : *Dosinia (Kaneharaia)*	15.97 - 11.608 Ma Miocene
Laevicardium genus	Animalia : Mollusca : Bivalvia : Venerida : Lahilliidae : *Laevicardium*	15.97 - 11.608 Ma Miocene
Macoma genus	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : *Macoma*	28.4 - 11.608 Ma Cenozoic
Mercenaria genus	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Mercenaria*	15.97 - 11.608 Ma Miocene
Nemocardium genus	Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : *Nemocardium*	28.4 - 2.588 Ma Cenozoic
Angulus (Peronidia) subgenus	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Angulus : *Angulus (Peronidia)*	15.97 - 11.608 Ma Miocene
Dosinia (Phacosoma) subgenus	Animalia : Mollusca : Bivalvia : Veneroidei : Veneridae : Dosinia : *Dosinia (Phacosoma)*	15.97 - 11.608 Ma Miocene
Serripes genus	Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : *Serripes*	23.03 - 15.97 Ma Miocene
Solen genus	Animalia : Mollusca : Bivalvia : Adapedonta : Solenidae : *Solen*	15.97 - 11.608 Ma Miocene
Spisula genus	Animalia : Mollusca : Bivalvia : Venerida : Mactridae : *Spisula*	15.97 - 11.608 Ma Miocene
Tapes genus	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Tapes*	3.6 - 2.588 Ma Cenozoic
Venericardia genus	Animalia : Mollusca : Bivalvia : Carditida : Carditidae : *Venericardia*	3.6 - 2.588 Ma Cenozoic
Corbula (Anisocorbula) subgenus	Animalia : Mollusca : Bivalvia : Pholadida : Corbulidae : Corbula : *Corbula (Anisocorbula)*	3.6 - 2.588 Ma Cenozoic
Barnea genus	Animalia : Mollusca : Bivalvia : Myida : Pholadidae : *Barnea*	3.6 - 2.588 Ma Cenozoic
Cryptomya genus	Animalia : Mollusca : Bivalvia : Myida : Myidae : *Cryptomya*	15.97 - 11.608 Ma Miocene
Cuspidaria genus	Animalia : Mollusca : Bivalvia : Cuspidariidae : *Cuspidaria*	3.6 - 2.588 Ma Cenozoic
Pandora genus	Animalia : Mollusca : Bivalvia : Pandoridae : *Pandora*	15.97 - 11.608 Ma Miocene
Periploma genus	Animalia : Mollusca : Bivalvia : Periplomatidae : *Periploma*	28.4 - 23.03 Ma Cenozoic
Balaenoptera genus	Animalia : Chordata : Mammalia : Cetacea : Balaenopteridae : *Balaenoptera*	2.588 - 0.781 Ma Pleistocene
Sachalinocetus genus	Animalia : Chordata : Mammalia : Cetacea : *Sachalinocetus*	28.1 - 23.03 Ma Cenozoic
Kentriodontidae family	Animalia : Chordata : Mammalia : Cetacea : Kentriodontidae	28.1 - 23.03 Ma Cenozoic
Squalodontidae family	Animalia : Chordata : Mammalia : Cetacea : Squalodontidae	28.1 - 23.03 Ma Cenozoic
Aetiocetidae family	Animalia : Chordata : Mammalia : Cetacea : Aetiocetidae	28.1 - 23.03 Ma Cenozoic
Balaenopteridae family	Animalia : Chordata : Mammalia : Cetacea : Balaenopteridae	2.588 - 0.781 Ma Pleistocene
Physeteroidea superfamily	Animalia : Chordata : Mammalia : Cetacea : Physeteroidea	28.1 - 23.03 Ma Cenozoic
Diodora quadriradiata species	Animalia : Mollusca : Gastropoda : Lepetellida : Fissurellidae : Diodora : *Diodora quadriradiata*	3.6 - 2.588 Ma Cenozoic
Nassariidae family	Animalia : Mollusca : Gastropoda : Neogastropoda : Nassariidae	15.97 - 11.608 Ma Miocene
Naticidae family	Animalia : Mollusca : Gastropoda : Littorinimorpha : Naticidae	15.97 - 11.608 Ma Miocene
Nuculanidae family	Animalia : Mollusca : Bivalvia : Nuculanida : Nuculanidae	15.97 - 11.608 Ma Miocene
Panopea genus	Animalia : Mollusca : Bivalvia : Hiatellida : Hiatellidae : *Panopea*	15.97 - 11.608 Ma Miocene
Morawanocetus yabukii species	Animalia : Chordata : Mammalia : Cetacea : Hapalodectidae : Chonecetus : *Morawanocetus yabukii*	28.1 - 23.03 Ma Cenozoic
Morawanocetinae subfamily	Animalia : Chordata : Mammalia : Cetacea : Aetiocetidae : Morawanocetinae	28.1 - 23.03 Ma Cenozoic
Chonecetus tomitai species	Animalia : Chordata : Mammalia : Cetacea : Aetiocetidae : Chonecetus : *Chonecetus tomitai*	28.1 - 23.03 Ma Cenozoic
Aetiocetus polydentatus species	Animalia : Chordata : Mammalia : Cetacea : Aetiocetidae : Aetiocetus : *Aetiocetus polydentatus*	28.1 - 23.03 Ma Cenozoic
Orcinus orca species	Animalia : Chordata : Mammalia : Cetacea : Delphinidae : Orcinus : *Orcinus orca*	0.0117 - 0 Ma Quaternary
Balaenoptera borealis species	Animalia : Chordata : Mammalia : Cetacea : Balaenopteridae : Balaenoptera : *Balaenoptera borealis*	2.588 - 0.781 Ma Pleistocene
Ashoroa laticosta species	Animalia : Chordata : Mammalia : Desmostylidae : Ashoroa : *Ashoroa laticosta*	28.1 - 23.03 Ma Cenozoic
Behemotops katsuiei species	Animalia : Chordata : Mammalia : Paleoparadoxiidae : Behemotops : *Behemotops katsuiei*	28.1 - 23.03 Ma Cenozoic
Carabus genus	Animalia : Arthropoda : Insecta : Coleoptera : Carabidae : *Carabus*	0.126 - 0.0117 Ma Pleistocene
Desmostylus hesperus species	Animalia : Chordata : Mammalia : Desmostylidae : Desmostylus : *Desmostylus hesperus*	33.9 - 5.333 Ma Cenozoic
Modiolus genus	Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : *Modiolus*	15.97 - 11.608 Ma Miocene
Glycymeris (Glycymeris) subgenus	Animalia : Mollusca : Bivalvia : Arcida : Glycymerididae : Glycymeris : *Glycymeris (Glycymeris)*	15.97 - 11.608 Ma Miocene
Acharax johnsoni species	Animalia : Mollusca : Bivalvia : Solemyida : Solemyidae : Acharax : *Acharax johnsoni*	5.333 - 2.588 Ma Cenozoic
Anadara (Anadara) subgenus	Animalia : Mollusca : Bivalvia : Arcida : Arcidae : Anadara : *Anadara (Anadara)*	15.97 - 11.608 Ma Miocene
Mytilus edulis species	Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : Mytilus : *Mytilus edulis*	3.6 - 2.588 Ma Cenozoic
Bathymodiolus genus	Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : *Bathymodiolus*	33.9 - 28.4 Ma Oligocene
Mytilus (Tumidimytilus) tichanovitchi species	Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : Mytilus : *Mytilus (Tumidimytilus) tichanovitchi*	23.03 - 15.97 Ma Miocene
Lucinoma acutilineata species	Animalia : Mollusca : Bivalvia : Lucinida : Lucinidae : Lucinoma : *Lucinoma acutilineata*	5.333 - 2.588 Ma Cenozoic
Turritella shataii species	Animalia : Mollusca : Gastropoda : Turritellidae : Turritella : *Turritella shataii*	23.03 - 15.97 Ma Miocene
Fusitriton oregonensis species	Animalia : Mollusca : Gastropoda : Ranellidae : Argobuccinum : *Fusitriton oregonensis*	5.333 - 2.588 Ma Cenozoic
Macoma (Macoma) subgenus	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Macoma : *Macoma (Macoma)*	23.03 - 11.608 Ma Miocene
Glycymeris idensis species	Animalia : Mollusca : Bivalvia : Arcida : Glycymerididae : Glycymeris : *Glycymeris idensis*	15.97 - 11.608 Ma Miocene
Anadara (Anadara) hokkaidoensis species	Animalia : Mollusca : Bivalvia : Arcida : Arcidae : Anadara : *Anadara (Anadara) hokkaidoensis*	15.97 - 11.608 Ma Miocene
Mizuhopecten nakatombetsuensis species	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Mizuhopecten : *Mizuhopecten nakatombetsuensis*	15.97 - 11.608 Ma Miocene
Cyclocardia abesinaiensis species	Animalia : Mollusca : Bivalvia : Carditida : Carditidae : Cyclocardia : *Cyclocardia abesinaiensis*	23.03 - 15.97 Ma Miocene
Acila (Acila) brevis species	Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Acila : *Acila (Acila) brevis*	28.4 - 23.03 Ma Cenozoic
Acila (Acila) praedivaricata species	Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Acila : *Acila (Acila) praedivaricata*	28.4 - 23.03 Ma Cenozoic
Acila (Acila) mirabilis species	Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Acila : *Acila (Acila) mirabilis*	3.6 - 2.588 Ma Cenozoic
Ezocallista genus	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Ezocallista*	23.03 - 15.97 Ma Miocene
Macoma (Macoma) calcarea species	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Macoma : *Macoma (Macoma) calcarea*	15.97 - 2.588 Ma Cenozoic
Chlamys (Chlamys) cosibensis species	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Chlamys : *Chlamys (Chlamys) cosibensis*	3.6 - 2.588 Ma Cenozoic
Chlamys (Leochlamys) iwakiana species	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Chlamys : *Chlamys (Leochlamys) iwakiana*	3.6 - 2.588 Ma Cenozoic
Pecten (Chlamys) satoi species	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Chlamys : *Pecten (Chlamys) satoi*	3.6 - 2.588 Ma Cenozoic
Cryptopecten vesiculosus species	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Cryptopecten : *Cryptopecten vesiculosus*	3.6 - 2.588 Ma Cenozoic
Megangulus protovenulosa species	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Tellina : *Megangulus protovenulosa*	15.97 - 11.608 Ma Miocene
Venericardia (Cyclocardia) ferruginea species	Animalia : Mollusca : Bivalvia : Carditida : Carditidae : Cyclocardia : *Venericardia (Cyclocardia) ferruginea*	3.6 - 2.588 Ma Cenozoic
Yoldia sagittalia species	Animalia : Mollusca : Bivalvia : Nuculanida : Yoldiidae : Yoldia : *Yoldia sagittalia*	23.03 - 15.97 Ma Miocene
Arca (Arca) boucardi species	Animalia : Mollusca : Bivalvia : Arcida : Arcidae : Arca : *Arca (Arca) boucardi*	3.6 - 2.588 Ma Cenozoic
Chlamys (Swiftopecten) swifti species	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Chlamys : *Chlamys (Swiftopecten) swifti*	3.6 - 2.588 Ma Cenozoic
Yoldia (Nampiella) laudabilis species	Animalia : Mollusca : Bivalvia : Nuculanida : Yoldiidae : Yoldia : *Yoldia (Nampiella) laudabilis*	28.4 - 23.03 Ma Cenozoic
Lucinoma annulatum species	Animalia : Mollusca : Bivalvia : Lucinida : Lucinidae : Lucinoma : *Lucinoma annulatum*	15.97 - 11.608 Ma Miocene
Mactromeris polynyma species	Animalia : Mollusca : Bivalvia : Veneroidei : Mactridae : Mactromeris : *Mactromeris polynyma*	3.6 - 2.588 Ma Cenozoic
Nucella lapillus species	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : Nucella : *Nucella lapillus*	3.6 - 2.588 Ma Cenozoic
Cryptonatica janthostoma species	Animalia : Mollusca : Gastropoda : Naticidae : Cryptonatica : *Cryptonatica janthostoma*	3.6 - 2.588 Ma Cenozoic
Cryptonatica andoi species	Animalia : Mollusca : Gastropoda : Naticidae : Cryptonatica : *Cryptonatica andoi*	23.03 - 2.588 Ma Cenozoic
Glossaulax didyma species	Animalia : Mollusca : Gastropoda : Naticidae : Neverita : *Glossaulax didyma*	3.6 - 2.588 Ma Cenozoic
Neverita asagaiensis species	Animalia : Mollusca : Gastropoda : Naticidae : Neverita : *Neverita asagaiensis*	28.4 - 23.03 Ma Cenozoic
Spisula (Pseudocardium) haboroensis species	Animalia : Mollusca : Bivalvia : Veneroidei : Mactridae : Spisula : *Spisula (Pseudocardium) haboroensis*	15.97 - 11.608 Ma Miocene
Diplomoceras cylindraceum species	Animalia : Mollusca : Cephalopoda : Ammonitida : Diplomoceratidae : Diplomoceras : *Diplomoceras cylindraceum*	70.6 - 66 Ma Late/Upper Cretaceous
Ezonuculana mactraeformis species	Animalia : Mollusca : Bivalvia : Nuculanida : Nuculanidae : Ezonuculana : *Ezonuculana mactraeformis*	89.8 - 72.1 Ma Late/Upper Cretaceous
Chama reflexa species	Animalia : Mollusca : Bivalvia : Veneroidei : Chamidae : Chama : *Chama reflexa*	3.6 - 2.588 Ma Cenozoic
Clinocardium (Keenocardium) californiense species	Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : Clinocardium : *Clinocardium (Keenocardium) californiense*	3.6 - 2.588 Ma Cenozoic
Serpulorbis imbricatus species	Animalia : Mollusca : Gastropoda : Vermetidae : Serpulorbis : *Serpulorbis imbricatus*	3.6 - 2.588 Ma Cenozoic
Trominina ezoana species	Animalia : Mollusca : Gastropoda : Neogastropoda : Buccinidae : Trominina : *Trominina ezoana*	28.4 - 23.03 Ma Cenozoic
Ostrea eorivularis species	Animalia : Mollusca : Bivalvia : Ostreida : Ostreidae : Ostrea : *Ostrea eorivularis*	28.4 - 23.03 Ma Cenozoic
Plateumaris genus	Animalia : Arthropoda : Insecta : Coleoptera : *Plateumaris*	2.588 - 0.781 Ma Pleistocene
Gloripallium crassivenium species	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Gloripallium : *Gloripallium crassivenium*	3.6 - 2.588 Ma Cenozoic
Ilybius genus	Animalia : Arthropoda : Insecta : Coleoptera : Dytiscidae : *Ilybius*	0.126 - 0.0117 Ma Pleistocene
Macoma (Macoma) incongrua species	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Macoma : *Macoma (Macoma) incongrua*	15.97 - 11.608 Ma Miocene
Crassostrea gigas species	Animalia : Mollusca : Bivalvia : Ostreida : Ostreidae : Crassostrea : *Crassostrea gigas*	3.6 - 2.588 Ma Cenozoic
Plateumaris sericea species	Animalia : Arthropoda : Insecta : Coleoptera : Chrysomelidae : Plateumaris : *Plateumaris sericea*	0.126 - 0.0117 Ma Pleistocene
Donacia splendens species	Animalia : Arthropoda : Insecta : Coleoptera : Chrysomelidae : Donacia : *Donacia splendens*	0.126 - 0.0117 Ma Pleistocene
Plateumaris weisei species	Animalia : Arthropoda : Insecta : Coleoptera : Chrysomelidae : Plateumaris : *Plateumaris weisei*	0.126 - 0.0117 Ma Pleistocene
Donacia sparganii species	Animalia : Arthropoda : Insecta : Coleoptera : Chrysomelidae : Donacia : *Donacia sparganii*	0.126 - 0.0117 Ma Pleistocene
Conchocele taylori species	Animalia : Mollusca : Bivalvia : Lucinida : Thyasiridae : Conchocele : *Conchocele taylori*	33.9 - 28.4 Ma Oligocene
Hespererato scabriuscula species	Animalia : Mollusca : Gastropoda : Triviidae : Hespererato : *Hespererato scabriuscula*	3.6 - 2.588 Ma Cenozoic
Erronea (Adusta) onyx species	Animalia : Mollusca : Gastropoda : Cypraeidae : Adusta : *Erronea (Adusta) onyx*	3.6 - 2.588 Ma Cenozoic
Velutina plicatilis species	Animalia : Mollusca : Gastropoda : Velutinidae : Velutina : *Velutina plicatilis*	3.6 - 2.588 Ma Cenozoic
Nucella lamellosa species	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : Nucella : *Nucella lamellosa*	3.6 - 2.588 Ma Cenozoic
Conchocele conradii species	Animalia : Mollusca : Bivalvia : Lucinida : Thyasiridae : Conchocele : *Conchocele conradii*	28.4 - 2.588 Ma Cenozoic
Taikicetus inouei species	Animalia : Chordata : Mammalia : Cetacea : Taikicetus : *Taikicetus inouei*	15.97 - 11.62 Ma Miocene
Allodesmus uraiporensis species	Animalia : Chordata : Mammalia : Carnivora : Allodesminae : Allodesmus : *Allodesmus uraiporensis*	15.97 - 13.82 Ma Miocene
Hubertschenckia ezoensis species	Animalia : Mollusca : Bivalvia : Veneroidei : Vesicomyidae : Hubertschenckia : *Hubertschenckia ezoensis*	33.9 - 28.4 Ma Oligocene
Volutharpa genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Buccinidae : *Volutharpa*	3.6 - 2.588 Ma Cenozoic
Mohnia genus	Animalia : Mollusca : Gastropoda : Neogastropoda : Buccinidae : *Mohnia*	3.6 - 2.588 Ma Cenozoic

Fossil Localities

Click to show 24 fossil localities

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Tokachi_Subprefecture
Wikidata ID:	Q1137454

Localities in this Region

Japan

Hokkaidō Prefecture
- Tokachi Subprefecture
  - ⭔Ashoro District
    - ⭔Ashoro-cho (Asyoro-tyo)
      - Akan mine
      - Shiowakka
  - ⭔Hiroo District
    - Hiroo-mura
    - ⭔Taiki

Japan

Hokkaidō Prefecture
- Tokachi Subprefecture
  - Hiroo District
    - Taiki
      - Rekifune river placers
  - ⭔Kamikawa District
  - ⭔Kasai District
  - ⭔Kato District
    - Shikaoi (Shikaoi-Chō)
      - Shikaribetsu Lake
  - ⭔Nakagawa District
    - Tokati rhyolite dikes
  - ⭔Obihiro City
    - Nukabira
  - ⭔Tokachi District

Other Regions, Features and Areas that Intersect

Okhotsk PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

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