Download or read book Quaternary Stratigraphy and Geologic History of the Charlie Lake NTS 94A Map area British Columbia written by Gregory Michael Douglas Hartman and published by . This book was released on 2005 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two Cordilleran and three Laurentide glacial advances are recorded by Quaternary sediments in the Charlie Lake map-area (NTS 94A). The advances are inferred from the presence of exotic clasts derived from the Canadian Shield, fluvial deposits, glaciolacustrine deposits, and tills within nested paleo-valleys excavated during three interglaciations. The Late Wisconsinan Laurentide glaciation was the most extensive Laurentide glaciation, and the only one recognized in western Alberta south of the study area. Coalescence of Late Wisconsinan Laurentide and Cordilleran Ice Sheets is not recognized within the study area. Advancing Late Wisconsinan Laurentide ice blocked the east-flowing drainage and impounded Glacial Lake Mathews within paleo-Peace River valley and its tributaries. More than 100 m of fine sediment, deposited by suspension settling and density underflows were deposited in the centre of the basin. Weak, plastic clay layers within the glaciolacustrine sequence have developed shear planes on which more than 900 landslides have occurred.
Download or read book Quaternary Stratigraphy and Geomorphology of Charlie Lake 94A Map area British Columbia written by William Henry Mathews and published by 1978.. This book was released on 1978 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quaternary Stratigraphy and Geomorphology of Charlie Lake Map area British Columbia written by Geological Survey of Canada and published by . This book was released on 1976 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey of Canada Open File 1448 written by and published by Natural Resources Canada. This book was released on with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Earth Sciences written by and published by . This book was released on 2008 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Charlie Lake Peace River District British Columbia surficial geology written by Geological Survey of Canada and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surficial Geology and Quaternary Stratigraphy of the Tsacha Lake Area written by British Columbia. Geological Survey Branch and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surficial Geology and Quaternary Stratigraphy of the Fawnie Creek Area NTS 93 F 3 written by British Columbia. Geological Survey Branch and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surficial Geology and Quaternary Stratigraphy of the Fulton Lake Area written by British Columbia. Geological Survey Branch and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geology of Cry Lake and Dease Lake Map Areas North central British Columbia written by Hubert Gabrielse and published by . This book was released on 1998-01-01 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Triassic Stratigraphy in the Subsurface of the Plains Area of Dawson Creek and Charlie Lake Map Areas Northeast British Columbia written by and published by . This book was released on 2009 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains the full contents of the report, including any oversized figures and/or A-series maps, in PDF format. The PDF files, located in the \PDF folder, can be viewed with Adobe Reader v. 6.0 (included in the \APPS folder) or with a later version.
Download or read book Quaternary Geology in Part of the McLeod Lake Map Area NTS 093J Central British Columbia written by David Anthony Sacco and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Quaternary geology in part of the McLeod Lake map-area was studied through the production and analysis of 1:50 000-scale terrain maps and the examination of stratigraphic exposures and landforms. The surficial geology is dominated by thick, streamlined till that thins where relief is high. Glaciofluvial outwash and ice-contact deposits occur throughout the area and extensive glaciolacustrine deposits blanket low-lying regions. The glacial stratigraphic record spans the Fraser Glaciation and is represented by a sequence of advance glaciolacustrine sediments, till and retreat glaciolacustrine and glaciofluvial sediments. Ice initially flowed into the study area from the northwest and retreated before the arrival of ice from the west and south. Ice-flow during the glacial maximum was northeast and transitioned to the east during deglaciation. Ground penetrating radar suggests that post-glacial aeolian activity was brief. Optical dating on K-feldspar from aeolian material suggests this activity occurred around 9.35 ± 0.64, 9.94 ± 0.77 and 13.3 ± 1 ka and provides minimum ages for ice retreat.
Download or read book Geology of the Spatsizi River Map Area North central British Columbia written by C. A. Evenchick and published by Natural Resources Canada. This book was released on 2005 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quaternary Stratigraphy and Glacial History of the Fort Nelson southeast and Fontas River southwest Map Areas NTS 094J SE and 0941 SW Northeastern British Columbia written by Michelle Suzanne Trommelen and published by . This book was released on 2006 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study area in northeast British Columbia extends from the Rocky Mountains in the west to the Fort Nelson Lowland in the east, and includes the westernmost extend of the Laurentide Ice Sheet (LIS) and the easternmost extend of the Cordilleran Ice Sheet (CIS) in the Late Pleistocene. Surficial mapping conducted over portions of the Fontas and Fort Nelson map areas (NTS 094I/SW and 094J/SE, respectively) provides information on sediment distribution and characteristics as well as glacial history. This information has direct implications for geotechnical investigations, aggregate resources and diamond exploration in the region. Non-glacial pre-Late Wisconsinan sediments occur at multiple sites along the Prophet River, providing a pre-glacial or interglacial history for the area. Geochemical analysis and clast lithologies were used to differentiate between sediments derived from the LIS to the east, and Montane/CIS glaciers to the west.The Quaternary stratigraphy of the Prophet River valley indicates the presence of a paleo-Prophet River valley system. Nonglacial deposits in the paleovalley include overbank fines and floodplain sediments interbedded with fluvial gravels. Macrofossils within horizontally laminated organic-rich black clay and silt are interpreted to indicate deposition in the floodplain of the paleo-Prophet River within oxbow-lakes and possibly also sag ponds. The climate is interpreted to be similar to present within a dominantly spruce forest. Wood found at one site provided a radiocarbon date of 49 300?2000 BP, while wood obtained from five other sites provided non-finite radiocarbon ages. In the Late Wisconsinan, the LIS advanced west-southwest into the study area, blocking existing east-flowing regional drainage, and forming an ice-dammed proglacial lake in the Prophet River valley. Ice overrode these sediments and deposited clast-poor clayey-silt till over the entire region. Thicknesses range from less than one metre to greater than twenty metres in the Prophet River valley. In river-cut sections near the Rocky Mountains in the Fort Nelson and Tuchodi Lakes map areas, potassium-feldspar rich granitoid and gneissic clasts, derived from the Canadian Shield, are generally found only east of the foothills, except along the Tetsa River valley. Near the mountain front, in Tuchodi River valley, outwash from Montane/Cordilleran glacial meltwaters was deposited before the LIS advanced and ponded the valley in the Late Wisconsinan.The geochemistry of 303 till samples collected throughout the study area is used to evaluate the regional glacial history inferred from stratigraphic and geomorphic data. Three different geochemical populations are recognized and corroborated by clast lithology (relative percent) from 56 till and glaciofluvial samples. One population, covering the northeast portion of the study area, was likely deposited by the LIS where it extended west into the Rocky Mountain front during the Late Wisconsinan. The second population suggests that the eastern extent of Montane/Cordilleran ice during the Late Wisconsinan was at least to the Rocky Mountain Foothills; however its easternmost position remains unknown. The third population can be attributed to Late Wisconsinan LIS reworking sediment deposited on the Interior Plains by the CIS, either in the Late Wisconsinan or earlier.During early deglaciation, the ice retreated to the east-northeast, impounding local drainage at the ice margin, forming Glacial Lake Prophet in the Fort Nelson map area and Glacial Lake Hay in the Fontas map area. Glacial lakes followed the retreating ice margin and drained through a variety of meltwater channels. The exposed glacial lacustrine plain became a source for sand dunes oriented southeast indicating katabatic paleowinds from the northwest (NTS 094I/SE).
Download or read book Quaternary Geology and Landforms of the Dawson Creek Region British Columbia NTS 93P written by British Columbia. Geological Survey Branch and published by . This book was released on 1993 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stratigraphic, peat, aggregates, building materials, economic.
Download or read book Quaternary Geology of the Southern Canadian Cordillera written by John Joseph Clague and published by . This book was released on 1987 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index to Publications written by Geological Survey of Canada and published by . This book was released on 1975 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
