Ore-forming porphyry stocks, including pyroxene–diorite porphyry and diorite porphyry, intrude the marine carbonate rocks and have been assigned U–Pb zircon ages of 122.4 ± 0.8 Ma and 128.6 ± 1.2 Ma, respectively. Gold-bearing orebodies occur mainly at or near contacts between diorite porphyry and surrounding carbonate rocks and have an obvious stratiform nature. Two types of gold-bearing orebody are recognized at Jiaochong: (1) Pyrrhotite + pyrite-dominated orebodies, which account for ∼ 80 % of the total gold-bearing orebodies, have a distribution that is governed by the fracture system and are concentrated in the outer contact zone between porphyry intrusions and carbonates with high dip angles of 35°–70° or in the hinge zones of folds; and (2) colloform pyrite + sphalerite-dominated orebodies with variable thickness of 8–50 cm are distributed on the outside of pyrrhotite + pyrite-dominated gold orebodies, subparallel to the carbonate wall-rocks.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Gold

Mineral List

19 valid minerals.

Rock Types Recorded

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

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ Diorite

ⓘ 'Porphyry'

ⓘ Skarn

Detailed Mineral List:

ⓘ Actinolite

Formula: ◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

Du, Jingguo, Du, Yangsong, Wang, Gongwen, Wu, Changzhi, Mao, Jingwen, Zhang, Lida (2024) Gold mineralisation by pyrite recrystallisation and arsenopyrite sequestration in the Jiaochong Au deposit, Tongling ore district, eastern China: Implications for the formation of stratabound ore deposits. Ore Geology Reviews, 166. 105955 doi:10.1016/j.oregeorev.2024.105955

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Arsenopyrite

Formula: FeAsS

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ 'Biotite'

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

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Calcite

Formula: CaCO₃

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ 'Chlorite Group'

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Diopside

Formula: CaMgSi₂O₆

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Epidote

Formula: (CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)

References:

ⓘ Galena

Formula: PbS

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ 'Garnet Group'

Formula: X₃Z₂(SiO₄)₃

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Gold

Formula: Au

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Gold var. Electrum

Formula: (Au,Ag)

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Kaolinite

Formula: Al₂(Si₂O₅)(OH)₄

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ 'K Feldspar'

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Pyrite

Formula: FeS₂

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ 'Pyroxene Group'

Formula: ADSi₂O₆

References:

ⓘ Pyrrhotite

Formula: Fe_1-xS

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Quartz

Formula: SiO₂

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Siderite

Formula: FeCO₃

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Sphalerite

Formula: ZnS

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Wollastonite

Formula: Ca₃(Si₃O₉)

References:

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): Mineral Deposits 32(6), 1221-1235

ⓘ Zircon

Formula: Zr(SiO₄)

References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Gold var. Electrum	1.AA.05	(Au,Ag)
ⓘ		1.AA.05	Au
Group 2 - Sulphides and Sulfosalts
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Galena	2.CD.10	PbS
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Arsenopyrite	2.EB.20	FeAsS
Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Quartz	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Siderite	5.AB.05	FeCO₃
Group 9 - Silicates
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Diopside	9.DA.15	CaMgSi₂O₆
ⓘ	Actinolite	9.DE.10	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
ⓘ	Wollastonite	9.DG.05	Ca₃(Si₃O₉)
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
Unclassified
ⓘ	'Chlorite Group'	-
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'K Feldspar'	-
ⓘ	'Pyroxene Group'	-	ADSi₂O₆
ⓘ	'Garnet Group'	-	X₃Z₂(SiO₄)₃

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Siderite	FeCO₃
O	Oxygen
O	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Diopside	CaMgSi₂O₆
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Siderite	FeCO₃
O	ⓘ Wollastonite	Ca₃(Si₃O₉)
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Pyroxene Group	ADSi₂O₆
O	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
F	Fluorine
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Mg	Magnesium
Mg	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Mg	ⓘ Diopside	CaMgSi₂O₆
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Diopside	CaMgSi₂O₆
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Wollastonite	Ca₃(Si₃O₉)
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Pyroxene Group	ADSi₂O₆
Si	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
S	Sulfur
S	ⓘ Arsenopyrite	FeAsS
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Galena	PbS
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Sphalerite	ZnS
K	Potassium
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Diopside	CaMgSi₂O₆
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Wollastonite	Ca₃(Si₃O₉)
Ti	Titanium
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	Iron
Fe	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Fe	ⓘ Arsenopyrite	FeAsS
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Siderite	FeCO₃
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
As	Arsenic
As	ⓘ Arsenopyrite	FeAsS
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Ag	Silver
Ag	ⓘ Gold var. Electrum	(Au,Ag)
Au	Gold
Au	ⓘ Gold var. Electrum	(Au,Ag)
Au	ⓘ Gold	Au
Pb	Lead
Pb	ⓘ Galena	PbS

Other Regions, Features and Areas containing this locality

AsiaContinent

China

North China OrogenOrogen

Yangtze PlateTectonic Plate

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References

Chaoyang Que, Ganguo Wu, Da Zhang, Zhihui Zhang, Yongjun Di, Hongwei Fang, and Qin Yuan (2013): LA-ICP-MS zircon U-Pb dating of dioritic porphyrite in Jiaochong Au-S deposit, Tongling area, and its geological significance. Mineral Deposits 32(6), 1221-1235 (in Chinese with English abstract).

[1]Du, Jingguo, Du, Yangsong, Wang, Gongwen, Wu, Changzhi, Mao, Jingwen, Zhang, Lida (2024) Gold mineralisation by pyrite recrystallisation and arsenopyrite sequestration in the Jiaochong Au deposit, Tongling ore district, eastern China: Implications for the formation of stratabound ore deposits. Ore Geology Reviews, 166. 105955 doi:10.1016/j.oregeorev.2024.105955

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Jiaochong Au-S deposit, Tongling, Anhui, ChinaiRegional Level TypesJiaochong Au-S depositDeposit TonglingPrefecture-level City AnhuiProvince ChinaCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

References

Jiaochong Au-S deposit, Tongling, Anhui, China i
Regional Level Types
Jiaochong Au-S deposit Deposit
Tongling Prefecture-level City
Anhui Province
China Country