An update of subsurface information, Cretaceous Rocks, Trout Lake area, southern Northwest Territories

1978 ◽  
Author(s):  
G K Williams
Keyword(s):  
Northwest Territories ◽  
Lake Area ◽  
Trout Lake

Metamorphism of the Arseno Lake area, Northwest Territories

1978 ◽  
Author(s):  
P A Nielsen
Keyword(s):  
Northwest Territories ◽  
Lake Area

scholarly journals Additions to the Flora of the Continental Northwest Territories from the Great Slave Lake Area

2005 ◽  
Vol 119 (3) ◽  
pp. 437
Author(s):  
Paul M. Catling
Keyword(s):  
Northwest Territories ◽  
Native Species ◽  
Achillea Millefolium ◽  
Lake Area ◽  
Distinctive Features ◽  
Botanical Exploration ◽  
Galium Aparine ◽  
Great Slave Lake ◽  
Sonchus Arvensis ◽  
Eleven Species

Eleven species are reported as new to the flora of the continental Northwest Territories. The new native species include Artemesia dracunculus, Chenopodium leptophyllum, Eleocharis erythropoda, Panicum capillare, Schoenoplectus pungens and Symphyotrichum lanceolatum subsp. hesperium var. hesperium. New alien species reported include Achillea ptarmica, Chaenorhinum minus, Galium aparine, Malva neglecta and Silene cserei. Sonchus arvensis, previously reported, is based on material referable to a subsp. uliginosus. Forms new to the flora include Achillea millefolium f. rosea and Actaea rubra f. neglecta. Locations, habitats and distinctive features are provided for the additional taxa. The Hay River lowland ecoregion is a floristically rich area that deserves more botanical exploration. Erratum included.

Hornblende lineations in Trout Lake area, Lac la Ronge map sheet, Saskatchewan

1970 ◽  
Vol 7 (3) ◽  
pp. 884-899 ◽  
Author(s):  
W. M. Schwerdtner
Keyword(s):  
Large Scale ◽  
Finite Extension ◽  
Local Strain ◽  
Lake Area ◽  
Entire Area ◽  
Trout Lake ◽  
Strain Pattern ◽  
Strain Ellipsoid ◽  
Major Branch ◽  
Narrow Belt

Most rocks exposed in the Trout Lake Area are migmatitic gneisses severely deformed during the Hudsonian orogeny (± 1700 m.y. ago). Hornblende-bearing layers or lenses, mostly well lineated, are found throughout the entire area. The attitude(s) of the hornblende lineation (aligned prismatic grains) can be measured in every outcrop.Within cylindrical buckling folds and boudinage structures, involving hornblende-bearing rocks, the orientation of hornblende lineations is related to local directions of megascopic finite strain parallel to layering, for the main period of tectonic flow. Because the local strain ellipsoid is commonly oblique to layering, the strain ellipse parallel to layering is generally a non-principal section. The direction of its longest diameter is called M, regardless of whether it is a direction of extension, shortening or no longitudinal strain.Throughout all medium-scale folds and boudinage structures investigated, hornblende lineations are parallel to M. This relationship is considered as general, and hornblende lineations are employed as indicators of M within large-scale folds. (Other structural elements are used in distinguishing between finite extension and shortening parallel to M.) Finally, the strain pattern of the Trout Lake Area (west half) is analyzed by means of a contour map for the lineation plunge (non-statistical "plunge isogonic map" after D. Elliot 1965).The areal pattern of M contains a diagonal belt across which the plunge values tend to change "discontinuously." Because this narrow belt coincides roughly with a major branch of the Birch Rapids – Wepusko Bay fault zone, the angular "discontinuity" in the lineation map can be attributed to "late" rotational faulting.

scholarly journals Geochemical data for lake sediments and surface waters, Abitau Lake area, Northwest Territories (NTS 75-B)

2016 ◽  
Author(s):  
M W McCurdy ◽  
S J Pehrsson ◽  
H Falck ◽  
S J A Day ◽  
J E Campbell
Keyword(s):  
Lake Sediments ◽  
Northwest Territories ◽  
Surface Waters ◽  
Geochemical Data ◽  
Lake Area

scholarly journals Geology of southern Angikuni Lake area, District of Keewatin, Northwest Territories

1998 ◽  
Author(s):  
L B Aspler ◽  
J R Chiarenzelli ◽  
K B Powis ◽  
B L Cousens
Keyword(s):  
Northwest Territories ◽  
Lake Area

scholarly journals Till geochemistry of the Baker Lake area, District of Keewatin, Northwest Territories

1996 ◽  
Author(s):  
R A Klassen ◽  
R D Knight
Keyword(s):  
Northwest Territories ◽  
Lake Area ◽  
Baker Lake
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