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Ministry of Energy Mines and Responsible for Core Review

082FSE Geological Legend

 

LAYERED ROCKS

QUATERNARY
PLEISTOCENE AND RECENT

Qal

Unconsolidated glacial, fluvial and alluvial deposits
PALEOZOIC
UPPER MISSISSIPPIAN TO(?) PERMIAN

uMM

MILFORD GROUP: Argillite, limestone and quartzite
CAMBRIAN

Ce

EAGER: Argillite, siltstone

Cc

CRANBROOK: Quartzite, argillite
UPPER PROTEROZOIC TO LOWER CAMBRIAN

lCH

HAMILL GROUP: Quartzite
UPPER PROTEROZOIC (HADRYNIAN)
WINDERMERE SUPERGROUP

uPHC

HORSETHIEF CREEK GROUP: Phyllite, quartzite, grit

uPts

THREE SISTERS: Grit, quartzite

uPm

MONK: Phyllite

uPi

IRENE: Greenstone

uPt

TOBY FORMATION: Conglomerate
MIDDLE PROTEROZOIC (HELIKIAN)
PURCELL SUPERGROUP

mPmn

MOUNT NELSON FORMATION: Quartzite, dolomite and argillite

mPdc

DUTCH CREEK FORMATION (locally includes GATEWAY and VAN CREE FORMATIONS): Siltstone, argillite, quartzite and dolomite

mPk

KITCHENER FORMATION: Dolomite, dolomitic siltstone and argillite

mPc

CRESTON FORMATION: Siltstone, argillite and quartzite

mPa

ALDRIDGE FORMATION: Sedimentary rocks unsubdivided

mPa3

UPPER ALDRIDGE FORMATION: Black argillite and siltstone; typically rusty weathering

mPa2

MIDDLE ALDRIDGE FORMATION: Grey quartzite, quartz wacke, argillite and siltstone

mPa1

LOWER ALDRIDGE FORMATION: Siltstone and quartzite

INTRUSIVE ROCKS

TERTIARY
EOCENE

mEc

CORYELL INTRUSIONS: biotite monzonite, syenite
CRETACEOUS

Kg

Granite, granodiorite, monzonite; includes middle Cretaceous Bayonne Batholith
MIDDLE JURASSIC

mJp

Porphyritic granite, granodiorite, monzonite

mJn

NELSON BATHOLITH and related stocks: porphyritic granite, granodiorite
MIDDLE PROTEROZOIC

Pmi

MOYIE INTRUSIONS: Quartz diorite and diorite

 

Geological map and legend from:

Fyles, J.T. (1964): Geology of the Duncan Lake Area, Lardeau District, British Columbia; B.C. Ministry of Energy, Mines and Petroleum Resources, Bulletin 49, 87 pages.

Hoy, T., Price, R.A., Legun, A., Grant, B. and Brown, D.A. (1995): Purcell Supergroup, Southeastern British Columbia Geological Compilation Map (NTS 82G; 82F/E; 82J/SW; 82K/SE); B.C. Ministry of Energy, Mines and Petroleum Resources, Geoscience Map 1995-1.

McLaren, G., Stewart, G. and Lane, R. (1990): Geology and Mineral Occurrences of the Purcell Wilderness Conservancy, East Half; B.C. Ministry of Energy, Mines and Petroleum Resources, Open File 1990-20.

Pope, A. (1990): The Geology and Mineral Deposits of the Toby-Horsethief Creek Map Area, Northern Purcell Mountains, Southeast British Columbia (82K); B.C. Ministry of Energy, Mines and Petroleum Resources, Open File 1990-26.

Reesor, J.E. (1973): Geology of the Lardeau Map Area; Geological Survey of Canada, Memoir 369, 129 pages.

See  CRESTON (082FSE) Summary Sheet for an overview of the map area and additional regional references.

Positions of all geological contacts are approximate. In the case of an apparent disagreement between an occurrence’s geological location on the map and its stratigraphic setting given in the MINFILE documentation, the latter should be given priority.