| Title | Field observations of the Tachie Pluton near Fort St. James, central British Columbia |
| Download | Download (whole publication) |
| Author | Hrudey, M G; Struik, L C |
| Source | Cordillera and Pacific margin / Interior Plains and Arctic Canada/Cordillère et marge du Pacifique / Plaines intérieures et région arctique du Canada; by Geological Survey of Canada; Geological Survey of
Canada, Current Research no. 1998-A/B, 1998 p. 107-111, https://doi.org/10.4095/209493 |
| Year | 1998 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | paper |
| Related | This publication is contained in Geological Survey of
Canada; Geological Survey of Canada; (1998). Cordillera and Pacific margin / Interior Plains and Arctic Canada, Geological Survey of Canada, Current Research no. 1998-A/B |
| Province | British Columbia |
| NTS | 93K/10NW; 93K/11NE; 93K/14SE; 93K/15SW |
| Area | Trembleur Lake; Tarnezell Lake; Tachie River |
| Lat/Long WENS | -125.2500 -124.7500 54.8333 54.6667 |
| Subjects | igneous and metamorphic petrology; field relations; plutonic rocks; tonalites; diorites; dykes; igneous rocks; aplites; pegmatites; foliation; lineations; textural analyses; structural features; Tachie
Pluton; Cache Creek Group; McKnab Lake Pluton; McElvey Lake Pluton; Jurassic |
| Illustrations | sketch maps; photographs |
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| Program | Nechako NATMAP Project |
| Released | 1998 03 01 |
| Abstract | The Tachie Pluton, found northwest of Fort St. James, consists of biotite diorite to tonalite. It is equigranular, medium grained, and composed of abundant plagioclase, quartz and biotite. Schlieren
textures and enclaves occur with biotite pegmatite and mafic concentrations in discrete bands. Aplite and pegmatite dykes, along with hornblende-rich dykes are late syn- to post-intrusion features found throughout the pluton. The pluton resembles
diorite and quartz diorite of the McKnab Pluton south of Stuart Lake. |
| GEOSCAN ID | 209493 |
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