Search

Search

Sort results:

Results : 1 - 9 of 9

BUL 051

Petrology and geochemistry of the Canadian Shield of northeastern Alberta

The remnant, central belt of granodioritic to quartz-monzonitic gneiss, of I-type granitoid composition, is flanked on its western argin by fairly homogeneous protons of biotite quartz monzonite to granite (Slave and Arch Lake Granitoids), and on ... Show Abstract

Goff, S.P.  Godfrey, J.D.  Holland, J.G.  1986-01-01

BUL 042

Polyphase Metamorphism in the Canadian Shield of Northeastern Alberta

During the Archean metamorphic cycle, metasediments were metamorphosed under high pressure granulite conditions (M1). Coexisting garnet-biotite and garnet-cordierite pairs in the metasediments allows estimation of P-T conditions during the ... Show Abstract

Langenberg, C.W.  Nielsen, P.A.  1982-01-01

BUL 052

Geophysical expression of the Canadian Shield of northeastern Alberta

The Canadian Shield of northeastern Alberta has a geophysical expression controlled by lithology and complex structural- metamorphic features. The magnetic field of the Alberta Shield (the exposed part of the Canadian Shield in Alberta) shows a ... Show Abstract

Sprenke, K.F.  Wavra, C.S.  Godfrey, J.D.  1986-01-01

MAP 537

Precambrian Geology of Northeastern Alberta (NTS 74M, 74L and part of 74E)

Abstract: This is a digital compilation at 1:250,000 scale of the Precambrian geology of the Alberta portion of the Canadian Shield and Athabasca Basin. For the Alberta shield, the compilation is at 1:31,680 scale and based on detailed mapping by Alberta Geological Survey during 1958 and 1987. Between 1994 and 2000, the Geological Survey of Canada remapped a large portion of the Alberta shield at 1:50,000 scale and published the results as preliminary 'open file' and 'A series' maps. Modern geochronological studies and interpretations presented in several journal articles aided the mapping effort. The compilation also includes a series of updates derived from the author's fieldwork and analytical (geochemical and isotope) data collected and published between 2004 and 2009. The compilation integrated all existing isotope data. Locations of uranium-lead and 40 argon/39 argon samples are marked on the map, and the tables summarize the age data. The legend displays samarium-neodymium time-of-depleted mantle model ages and epsilon values as ranges of variations for all map units that benefited from such analyses. The author attempted to present the geological information on the Alberta shield in a neutral manner, unbiased by the three, mutually exclusive, regional tectonic concepts existing at the time of the compilation. For the Athabasca Basin, the compilation is based on results from stratigraphic studies that Alberta Geological Survey and the Geological Survey of Canada sponsored from 2000 to 2006. These results were published in the last version of the geology of the Athabasca Basin presented in the ExTech IV volume, which the Geological Survey of Canada and Saskatchewan Geological Survey published in 2007. Brief overviews of the geology of the Alberta shield and Athabasca Basin are in the map's descriptive notes. Place Keywords 74e 74l 74m alberta shield athabasca basin athabasca lake canada canadian shield Theme Keywords argon athabasca basin bedrock geology canadian shield geology gneiss granitoid lead metamorphic mylonite precambrian uranium

Pana, D.I.  2012-01-12

ESR 1976-06

Index to Uranium Assessment Reports for Quartz Mineral Exploration Permits, Northeastern Alberta

Index to Uranium Assessment Reports for Quartz Mineral Exploration Permits, Northeastern Alberta The body of this report is a reproduction of the computer printout of a selective retrieval from the CIGD file, prepared by the Canada Centre for ... Show Abstract

Poruks, M.  Hamilton, W.N.  1976-01-01

ESR 2006-02

Geological Reconnaissance Work in the Andrew Lake Area of Northeastern Alberta

Selected geological traverses and uranium prospecting, using a sensitive GR130 spectrometer and two STRAT SPP2N scintillometers, were carried on over the main lithological units and more focused around selected radioactive sites previously ... Show Abstract

Pana, D.I.  Olson, R.A.  Byron, S.J.  2006-03-01

OFR 2013-02

Notes to Accompany Map 600: Bedrock Geology of Alberta

The geology of the Rocky Mountains and the Rocky Mountain Foothills is also the product of compilation with rare instances of new geological interpretation (e.g., the interpretation of bedrock geology beneath drift-filled valleys). The Cretaceous ... Show Abstract

Prior, G.J.  2013-10-01

OFR 2010-08

Geology of Uranium and Other Mineral Occurrences in the Andrew Lake Area, Canadian Shield, Northeastern Alberta (NTS 74M/16)

Geology of Uranium and Other Mineral Occurrences in the Andrew Lake Area, Canadian Shield, Northeastern Alberta (NTS 74M/16) Alberta Geological Survey recently completed field and analytical work in the northeastern corner of the Alberta shield, ... Show Abstract

Pana, D.I.  Prior, G.J.  2010-11-05

DIG 2009-0021

Metallic Mineral Occurrences of the Exposed Precambrian Shield in Northeastern Alberta, NTS 74E, L, M (GIS data, point features)

Metallic Mineral Occurrences of the Exposed Precambrian Shield in Northeastern Alberta, NTS 74E, L, M (GIS data, point features) Alberta Geological Survey Bulletin 64 documents 190 metallic mineral occurrences. The description of these 190 ... Show Abstract

Langenberg, C.W.  Eccles, D.R.  2009-10-26