Legris Lake, Thunder Bay District, Ontario, Canadai
Regional Level Types | |
---|---|
Legris Lake | Lake |
Thunder Bay District | District |
Ontario | Province |
Canada | Country |
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Latitude & Longitude (WGS84):
49° 7' 44'' North , 89° 31' 10'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
68171
Long-form identifier:
mindat:1:2:68171:0
GUID (UUID V4):
6b27fa3c-f8ad-48aa-bc02-a780c44a55bb
Palladium-rich Cu/Ni/PGE-mineralized mafic/ultramafic complex Located 85 kilometers North of Thunder Bay City, in 'Western Wabigoon Subprovince'.
The mafic complex is intruded in Archean formations (sandstone, arkose, greywacke affected by lower amphibolite contact metamorphism facies : garnets).
The Cu/Ni/PGE mineralization is hosted by a leucogabbro (overlying a clinopyroxenite), associated with diorites, granodiorites, biotite leucogranite and dunites).
The area is affected by extensive brecciation caused by injection of volatile-rich magma.
The mineralization (disseminated blebby sulphides surrounded by epidote), is related to late-stage immiscible separation of a sulphide melt from volatile-rich magma followed by metal redistribution by deuteritic fluids.
The Archean Legris Lake mafc–ultramafc complex (LLC) is spatially (~12 km east) and temporally (2690.59±0.77 Ma) associated with the world-class Lac des Iles (LDI) palladium deposit and it has a surface exposure of ~ 19.5 km2.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
20 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 DiagramDetailed Mineral List:
ⓘ Actinolite Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 Description: Retrograde alteration of hornblende
(greenschist facies associated with intrusion of granite and diorite dikes). References: |
ⓘ Albite Formula: Na(AlSi3O8) Description: Retrograde alteration of plagioclase (greenschist facies associated with intrusion of granite and diorite dikes).
Adjacent to granodiorite dikes. |
ⓘ Ankerite Formula: Ca(Fe2+,Mg)(CO3)2 Description: Associated with pyrite in shear zones. |
ⓘ Anorthite Formula: Ca(Al2Si2O8) Description: Anorthosites. |
ⓘ Antigorite Formula: Mg3(Si2O5)(OH)4 Description: Deuteritic alteration of pyroxene. |
ⓘ 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) References: |
ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 Description: Deuteritic alteration of hornblende. References: |
ⓘ Calcite Formula: CaCO3 Description: Associated with quartz, chlorite and epidote in veinlets (retrograde alteration). |
ⓘ 'Calcium Amphibole Subgroup' Formula: AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 References: |
ⓘ 'Calcium Amphibole Subgroup var. Hornblende' References: |
ⓘ Chalcopyrite Formula: CuFeS2 References: |
ⓘ 'Chlorite Group' Description: Retrograde alteration of hornblende (greenschist facies associated with intrusion of granite and diorite dikes). References: |
ⓘ 'Clinopyroxene Subgroup' References: |
ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) Description: Deuteritic alteration.
Surrounding chalcopyrite blebs.
Retrograde alteration of plagioclase (greenschist facies associated with intrusion of granite and diorite dikes). References: |
ⓘ 'Fayalite-Forsterite Series' Description: Wehrlite and dunite. |
ⓘ Hematite Formula: Fe2O3 Description: Retrograde alteration of plagioclase (greenschist facies associated with intrusion of granite and diorite dikes). |
ⓘ 'Hornblende Root Name Group' Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 Description: Deuteritic alteration of pyroxene. |
ⓘ Ilmenite Formula: Fe2+TiO3 References: |
ⓘ Magnetite Formula: Fe2+Fe3+2O4 References: |
ⓘ Millerite Formula: NiS |
ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Description: Deuteritic alteration of plagioclase. References: |
ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 Description: Deuteritic alteration of plagioclase. References: |
ⓘ 'Orthopyroxene Subgroup' References: |
ⓘ Pentlandite Formula: (NixFey)Σ9S8 References: |
ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 References: |
ⓘ Pyrite Formula: FeS2 References: |
ⓘ 'Pyroxene Group' Formula: ADSi2O6 References: |
ⓘ Pyrrhotite Formula: Fe1-xS References: |
ⓘ Quartz Formula: SiO2 References: |
ⓘ 'Scapolite' Description: Saussurite.
Deuteritic alteration of plagioclase.
Retrograde alteration of plagioclase (greenschist facies associated with intrusion of granite and diorite dikes). |
ⓘ Talc Formula: Mg3Si4O10(OH)2 References: |
ⓘ Zircon Formula: Zr(SiO4) References: |
ⓘ Zoisite Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) Description: Saussurite.
Deuteritic alteration of plagioclase.
Retrograde alteration of plagioclase (greenschist facies associated with intrusion of granite and diorite dikes). |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
ⓘ | Pentlandite | 2.BB.15 | (NixFey)Σ9S8 |
ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
ⓘ | Millerite | 2.CC.20 | NiS |
ⓘ | Pyrite | 2.EB.05a | FeS2 |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
ⓘ | Hematite | 4.CB.05 | Fe2O3 |
ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
ⓘ | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Calcite | 5.AB.05 | CaCO3 |
ⓘ | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
Group 9 - Silicates | |||
ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
ⓘ | Zoisite | 9.BG.10 | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
ⓘ | Actinolite | 9.DE.10 | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
ⓘ | Antigorite | 9.ED.15 | Mg3(Si2O5)(OH)4 |
ⓘ | Anorthite | 9.FA.35 | Ca(Al2Si2O8) |
ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
Unclassified | |||
ⓘ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
ⓘ | 'Orthopyroxene Subgroup' | - | |
ⓘ | 'Pyroxene Group' | - | ADSi2O6 |
ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
ⓘ | 'Fayalite-Forsterite Series' | - | |
ⓘ | 'Hornblende Root Name Group' | - | ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
ⓘ | 'Scapolite' | - | |
ⓘ | 'Clinopyroxene Subgroup' | - | |
ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
ⓘ | 'Chlorite Group' | - | |
ⓘ | 'Calcium Amphibole Subgroup var. Hornblende' | - | AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
ⓘ | '' | - | AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
H | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
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 | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
H | ⓘ Talc | Mg3Si4O10(OH)2 |
H | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
H | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
H | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
H | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
C | Carbon | |
C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
C | ⓘ Calcite | CaCO3 |
O | Oxygen | |
O | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
O | ⓘ Albite | Na(AlSi3O8) |
O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
O | ⓘ Anorthite | Ca(Al2Si2O8) |
O | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
O | ⓘ Calcite | CaCO3 |
O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
O | ⓘ Hematite | Fe2O3 |
O | ⓘ Ilmenite | Fe2+TiO3 |
O | ⓘ Magnetite | Fe2+Fe23+O4 |
O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
O | ⓘ Quartz | SiO2 |
O | ⓘ Talc | Mg3Si4O10(OH)2 |
O | ⓘ Zircon | Zr(SiO4) |
O | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
O | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
O | ⓘ Pyroxene Group | ADSi2O6 |
O | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
O | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
F | Fluorine | |
F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
F | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
F | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
F | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
Na | Sodium | |
Na | ⓘ Albite | Na(AlSi3O8) |
Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Mg | Magnesium | |
Mg | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Mg | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
Al | Aluminium | |
Al | ⓘ Albite | Na(AlSi3O8) |
Al | ⓘ Anorthite | Ca(Al2Si2O8) |
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 | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Al | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
Al | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Al | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
Si | Silicon | |
Si | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
Si | ⓘ Albite | Na(AlSi3O8) |
Si | ⓘ Anorthite | Ca(Al2Si2O8) |
Si | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Si | ⓘ Quartz | SiO2 |
Si | ⓘ Talc | Mg3Si4O10(OH)2 |
Si | ⓘ Zircon | Zr(SiO4) |
Si | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
Si | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Si | ⓘ Pyroxene Group | ADSi2O6 |
Si | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
P | Phosphorus | |
P | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
S | Sulfur | |
S | ⓘ Chalcopyrite | CuFeS2 |
S | ⓘ Millerite | NiS |
S | ⓘ Pentlandite | (NixFey)Σ9S8 |
S | ⓘ Pyrite | FeS2 |
S | ⓘ Pyrrhotite | Fe1-xS |
Cl | Chlorine | |
Cl | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
Cl | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
Cl | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
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(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Ca | ⓘ Anorthite | Ca(Al2Si2O8) |
Ca | ⓘ Calcite | CaCO3 |
Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Ca | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
Ca | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Ca | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
Ca | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
Ti | Titanium | |
Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
Ti | ⓘ Ilmenite | Fe2+TiO3 |
Fe | Iron | |
Fe | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
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 | ⓘ Hematite | Fe2O3 |
Fe | ⓘ Ilmenite | Fe2+TiO3 |
Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
Fe | ⓘ Pentlandite | (NixFey)Σ9S8 |
Fe | ⓘ Pyrite | FeS2 |
Fe | ⓘ Pyrrhotite | Fe1-xS |
Ni | Nickel | |
Ni | ⓘ Millerite | NiS |
Ni | ⓘ Pentlandite | (NixFey)Σ9S8 |
Cu | Copper | |
Cu | ⓘ Chalcopyrite | CuFeS2 |
Zr | Zirconium | |
Zr | ⓘ Zircon | Zr(SiO4) |
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
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