|Title||Geology of McKendrick Lake map area, New Brunswick (21J/16)|
|Author||Anderson, F D; Hobson, G D|
|Source||Geological Survey of Canada, Paper 69-12, 1970, 21 pages (2 sheets), https://doi.org/10.4095/102282|
|Publisher||Department of Energy, Mines and Resources Canada|
|Maps||Publication contains 1 map|
|Map Info.||geological, 1:50,000|
|Media||paper; on-line; digital|
|Related||This publication contains Anderson, F D; (1970). Geology,
McKendrick Lake, New Brunswick, Geological Survey of Canada, Preliminary Map no. 14-1969 |
|Area||McKendrick Lake; Renous River; Miramichi River|
|Lat/Long WENS|| -66.5000 -66.0000 47.0000 46.7500|
|Subjects||regional geology; structural geology; stratigraphy; economic geology; geophysics; bedrock geology; lithology; metamorphic rocks; paragneisses; schists; phyllites; igneous rocks; volcanic rocks;
intrusive rocks; granites; sedimentary rocks; slates; siltstones; greywackes; conglomerates; structural features; faults; folds; unconformities; geological history; tectonic history; deformation; glaciation; mineral occurrences; copper; galena;
sphalerite; chalcopyrite; geophysical surveys; seismic surveys; sulphides; seismic surveys; Ludlovian; Wenlockian; Westphalian; fossils; Clifton Formation; Tetagouche Group; Appalachian System; Miramichi Highland; New Brunswick Lowland; Graptolites;
Phanerozoic; Paleozoic; Carboniferous; Devonian; Silurian; Ordovician; Cambrian|
|Illustrations||geological sketch maps; location maps; histograms; cross-sections|
|Released||1970 01 01; 2016 09 12|
|Abstract||McKendrick Lake map-area lies in the northeastern part of the Appalachian Mountain system astride the Miramichi Highland and New Brunswick Lowland physiographic subdivisions. |
The oldest rocks are
Cambro-Ordovician paragneiss, schist and phyllite that occupy the core of a large northeast-trending anticlinorium. Minor structures in these rocks indicate
that they have undergone at least three stages of deformation.
metamorphic rocks with apparent unconformity (in places the contact may be faulted) is a sequence of basic volcanic rocks and interbedded slate and siltstone. Graptolites from the siltstone have been identified as Upper Silurian (Lower Ludlovian) in
Slate, siltstone, greywacke and minor volcanic rocks form the bulk of the remaining deformed Paleozoic rock-units in the map-area. These units are contiguous to the south where they have been dated as Ordovician to Silurian in
Granitic rocks ranging in age from Ordovician to Devonian outcrop in the western part of the map- area.
Near horizontal Carboniferous strata unconformably overlie Ordovician and Silurian units. Fossil flora collected are correlative with
the Pennsylvanian Clifton Formation.
The main structural feature is a fault that strikes east northeasterly across the southern part of the map- area. It appears to be strike slip with an apparent displacement of about 4 miles.
A hammer seismic
survey was conducted to determine the thickness and extent of a Carboniferous outlier and the nature of the underlying surface.