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Ministry of Energy Mines and Responsible for Core Review

082LSE Geological Legend

 

BEDDED ROCKS

QUATERNARY DEPOSITS

Qal

Unconsolidated glaciofluvial deposits, till and alluvium
MIOCENE/PLIOCENE

MvC

Chilcotin Group: Non-marine 'plateau basalts'
EOCENE

EK

Kamloops Group: Mostly andesitic and basaltic volcanics and associated fluvial and lacustrine sediments (EKs)
TRIASSIC/JURASSIC

TrJN

Nicola Group: Mostly basic lavas and pyroclastics and sedimentary rocks including argillites and some limestones

TrJNv

Nicola Group volcanics: Large mappable areas of intermediate and basic lavas and pyroclastic rocks, feeder intrusions, greenstones and chloritic schist
DEVONIAN/TRIASSIC

DTrH,
DTrHv

Harper Ranch Group: Basement to Quesnellia comprising hemipelagic tuffaceous mudstone, chert, limestone and arc derived sandstone and conglomerate
PROTEROZOIC/PALEOZOIC

PPK

Kootenay Assemblage: including Eagle Bay, Sicamous (PPKs) and Tsalkom (PPKT) formations that comprise quartz-mica schist, chloritic schist, phyllite, amphibolitic units and limestone

PSC

Silver Creek Formation: Pericratonic rocks that include quartz sericite, biotite schist and gneiss

PM

Craton related rocks of the Monashee Complex including the Malton paragneiss

PgnS

Shuswap Terrane: part of Monashee complex affected by Tertiary metamorphism; includes crystalline schists, gneisses, stratified paragneiss

INTRUSIVE ROCKS

TERTIARY(?)

TFg

Fosthall Intrusions: biotite granite, quartz monzonite, leucocratic pegmatite, includes areas with < 50% metamorphic rocks
CRETACEOUS

KTVg

Okanagan batholith: mostly massive granite and granodiorite; includes the Valhalla Intrusions that grade into Nelson plutonic rocks

KW

Whatshan batholith: Discordant, light-colored quartz monzonite and granodiorite
JURASSIC

JNg

Nelson Intrusions: Hornblende-biotite granodiorite, diorite and granite; generally moderately foliated

 

Geological compilation by Neil Church based on the following references:

Jones, A.G. (1959): Vernon Map-area, British Columbia, Geological Survey of Canada, Memoir 296.

Okulitch, A.V. (1978): Thompson-Shuswap-Okanagan, British Columbia; Geological Survey of Canada, Open File Map 637.

Wheeler, J.O. and McFeely, P. (1991): Tectonic Assemblage Map of the Canadian Cordillera and Adjacent parts of the United States of America; Geological Survey of Canada, Map 1712A, 1: 2 000 000.

See Sugar Lake (082LSE) 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.