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SPE 015

Petrography of the Mountain Lake Pipe, Grande Prairie Area, Alberta, Canada

Twelve samples rich in altered juvenile olivine from the Mountain Lake Pipe (holes ML95-1 and ML95-3) were studied for texture and mineralogy. Contrary to an earlier interpretation that Mountain Lake Pipe rocks are entirely extrusive crater-facies ... Show Abstract

Skupinski, A.  Langenberg, C.W.  2002-03-01

SPE 007

Regional Evaluation of the Coal Bed Methane Potential in the Plains and Foothills of Alberta, Stratigraphy and Rank Study

Regional Evaluation of the Coal Bed Methane Potential in the Plains and Foothills of Alberta, Stratigraphy and Rank Study The coal resource in place in Alberta is tremendous by whichever estimate is used. The geologic model developed for the ... Show Abstract

Rottenfusser, B.  Langenberg, C.W.  Mandryk, G.B.  Richardson, R.J.H.  Fildes, B.J.  Olic, J.  Stewart, S.A.  Eccles, D.R.  Evans, C.  Spelrem, M.  Sprecher, B.  Brulotte, M.  Gentzis, T.  Wynne, D.A.  Yuan, L.P.  1999-02-01

SPE 055

Petrography of Ardley Coals, Alberta - Implications for Coalbed Methane Potential

The seams were sampled at mine sites west of Edmonton (Genesee, Highvale, Whitewood) and from outcrop sections in the Red Deer Valley, east of Red Deer. The seams were sampled 1) by full seam channel samples, which were subsequently analyzed by ... Show Abstract

Kalkreuth, W.D.  Langenberg, C.W.  2002-12-01

BUL 045

Polyphase Deformation in the Canadian Shield of Northeastern Alberta

Two generations of structures can be distinguished in the granite gneisses and intercalated high-grade metasediments of the basement neiss complex, which has been shown to be Archean by radiometry dating. In some areas, D2 folds form parts of domes ... Show Abstract

Langenberg, C.W.  1983-01-01

BUL 056

Deformed Lower Cretaceous coal-bearing strata of the Grande Cache area, Alberta

The Lower Cretaceous Luscar Group includes a thin basal conglomerate (Cadomin Formation), a predominantly non marine sandstone and shale unit that locally contains coal (Gladstone Formation), a shallow marine shale and sandstone unit (Moosebar ... Show Abstract

Langenberg, C.W.  Kalkreuth, W.D.  Wrightson, C.B.  1987-01-01

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

ESR 2002-05

Regional Evaluation of the Coalbed Methane Potential of the Foothills/Mountains of Alberta (Second Edition)

Regional Evaluation of the Coalbed Methane Potential of the Foothills/Mountains of Alberta (Second Edition) The potential gas content of all shallow coal zones totals about 878 x 109m3 (31 Tcf)1 of CBM, which is considered an inferred, initial, ... Show Abstract

Langenberg, C.W.  Beaton, A.P.  Berhane, H.  2002-10-01

ESR 2000-03

Remnants of (Possibly Diamondiferous) Ultramafic Igneous Rocks in Bedrock of the Kakwa/Wapiti area, West Central Alberta

Bedrock sampling at 23 sites, heavy mineral separation and microprobing confirmed that indicator minerals of ultramafic igneous rocks are present in Cretaceous bedrock of the Wapiti area (NTS 83L). Para-magnetic heavy minerals (>3.3 SG) from ... Show Abstract

Langenberg, C.W.  Skupinski, A.  Beaton, A.P.  2000-01-01

ESR 1984-07

Fitzgerald, Tulip-Mercredi-Charles Lakes district, Alberta

Abstract: The bedrock geology consists of a north-trending belt of Archean granite gneisses in the east that is intruded by an Aphebian granitoid batholithic complex in the west portion of the map area. The migmatitic gneissic belt consists of classic granitic gneisses with minor components of small granitoid bodies, high-grade metasediments and amphibolite. The granitoid batholith consists of two principal lithologies, the Slave and Arch Lake Granitoids, both of which exhibit a deformed foliation. A major structural feature in the Slave Granitoid body, the Tulip Dome, contains symmetrical screens of narrow high grade metasedimentary rock bands that define a ghost stratigraphy. Small scale domal and basinal structures within the north section of the Arch Lake Granitoids suggest proximity to a roofal section and may be related to lateral pressure from an active adjacent Tulip Lake Dome. It appears that the granitoids are ultrametamorphic partial melt derivatives from the protolithic granite gneisses. The major contact between the granitoids and the gneissic belt is intrusive, with gneissic wall wedges protruding into the granitoids.The above rocks indicate that the region has undergone a two-cycle polyphase metamorphism. Geochronology and electron microprobe mineral analyses show that an Archean high pressure granulite facies metamorphism was followed by an Aphebian moderate pressure granulite facies metamorphism. Mineral assemblages show that the latter retrogressed through amphibolite facies and greenschist facies conditions. From Rb-Sr isochron analyses, the moderate pressure granulite facies event was dated at 1900 Ma. K-Ar dates on biotite and hornblende reveal that the greenschist facies and closure of the K-Ar system occurred at about 1800 Ma. Those events are coincident with the end of a widespread and severe thermal event (the Hudsonian Orogeny). Regionally, the metamorphic foliation has a northerly trend, but a wide range of variations exists locally, within both the granitoids and the gneissic belt.The map area is crossed by two, north to northeast striking, wide regional shear zones. One lies largely within the main granite gneiss belt, and the other forms a complex boundary between the major bodies of Slave and Arch Lake Granitoids. These shear zones are mylonitic and represent a deep seated environment of ductile shear.A Pleistocene ice sheet has scoured the region, leaving abundant erosional and depositional evidence of that continental glaciation. The Classical Wisconsin ice sheet flowed almost due west. Its retreat is marked by recessional moraines in the western part of the map area. Aeolian reworking of the typically sandy glacial deposits by southeasterly storm winds resulted in the formation of sand sheets and dunes. Associated wind polish and abrasion can be found on the adjacent bedrock surfaces. Place Keywords 74m alberta charles lake fitzgerald lake mercredi lake tulip lake Theme Keywords geology metamorphic

Godfrey, J.D.  Langenberg, C.W.  1986-01-01

ESR 1989-01

Coal Quality variation in the Cadomin-Luscar coalfield, Alberta

The economic Jewel Seam forms part of the Lower Cretaceous Gates Formation and has a stratigraphic thickness of 10 m. Its depositional setting was on a coastal plain, well removed from marine clastic influences. Shortening of the strata by folding ... Show Abstract

Langenberg, C.W.  MacDonald, D.E.  Kalkreuth, W.D.  Strobl, R.S.  1989-01-01

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