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Stratigraphy and sedimentology of the Cretaceous Nanaimo group, Saltspring Island, British Columbia

Creator:: Hanson, William Bruce
Abstract:: Clastic sedimentary rocks of the Nanaimo Group on Saltspring Island, British Columbia are Late Cretaceous in age, overlie a deformed and intruded Paleozoic basement complex, and consist of eight formations. These eight formations, from oldest to youngest, are the Comox, Haslam, Extension-Protection, Cedar District, De Courcy, Northumberland, Geoffrey, and Spray...
Resource Type:: Dissertation

The stratigraphy and depositional setting of the Spencer Formation, west-central Willamette Valley, Oregon: a surface-subsurface analysis

Creator:: Baker, Linda J.
Abstract:: For master (tiff) digital images of maps contained in this document contact scholarsarchive@oregonstate.edu
Resource Type:: Masters Thesis

The geology and stratigraphy of the lower Nanaimo group, Nanaimo, British Columbia

Creator:: Ruddiman, W. F. (William F.), 1943-
Abstract:: The western part of the Late Cretaceous Nanaimo Basin is exposed on Vancouver Island at Nanaimo, British Columbia. The five lowest members of the Nanaimo Group are present and represent a complete sedimentary cycle. The two lowest formations, the Comox and Haslam, represent the marine part of the cycle. The...
Resource Type:: Masters Thesis

Bedrock geology and stratigraphy of the Late Cretaceous Nanaimo Group of the Maple Bay-Cowichan Bay area, British Columbia

Creator:: White, David Dean
Abstract:: Regionally preserved in a structural basin, rocks of the Cretaceous Nanaimo Group nonconformably overlie metavolcanic and metasedimentary rocks of the Permian and older Sicker Group. Cretaceous rocks of the thesis area occur in three formations, the Comox, Extension-Protection, and Cedar Dist; and, during two cycles, were deposited in environments which,...
Resource Type:: Masters Thesis

Sedimentology, stratigraphy, and structure of the late cretaceous rocks of Mayne and Samuel Islands, British Columbia

Creator:: Stickney, Roger Barton
Abstract:: An ancient delta complex is partly recorded by the upper seven formations of the Cretaceous Nanaimo Group exposed on Mayne and Samuel Islands of southwestern British Columbia. Features especially suggestive of deltaic sedimentation here are: upward-coarsening marine to fluvial sequences, cyclic repetition of facies, subaqueous slumping, fluvial-marine interfingering, facies changes,...
Resource Type:: Masters Thesis

Stratigraphy and depositional history of the Amsden and lower Quadrant Formations, Snowcrest Range, Beaverhead and Madison Counties, Montana

Creator:: Key, Colin F.
Abstract:: During the Late Mississippian-Early Pennsylvanian (latest Chesterian-early Morrowan), a thick sequence of shallow -water carbonate-clastic sediments, equivalent to the "Amsden" and lower Quadrant Formations, was deposited in the Snowcrest trough on the western margin of the northern Rocky Mountain Cordilleran platform in southwestern Montana. Today this late Chesterian sequence is...
Resource Type:: Masters Thesis

Structure and stratigraphy of the Little Sheep Creek area, Beaverhead County, Montana

Creator:: Sadler, R. Kumbe
Abstract:: The Middle and West Forks of Little Sheep Creek in the southern Tendoy Range have incised valleys across Cenozoic structural features exposing strata that range in age from the Mississippian to the Neoene. Paleozoic strata are 1,349 m thick and belong to the Mission Canyon Limestone, the Big Snowy, Amsden,...
Resource Type:: Masters Thesis

Stratigraphy and depositional environments of the Mississippian Rocks, Garnet Range-Bearmouth area, Granite County, western Montana

Creator:: Schneider, Richard C.
Abstract:: The Garnet Range-Bearmouth area of western Montana was the depositional site for basinal, platform slope, shelf, and peritidal Mississippian carbonate rocks. The following stratigraphic units, listed in ascending order, are recognized: the Paine Limestone, Middle Canyon Formation, Mission Canyon Limestone, and McKenzie Canyon Limestone of the Tendoy Group; the Kibbey...
Resource Type:: Masters Thesis

Stratigraphy and paleoenvironments of Thetis, Kuper and adjacent Islands, British Columbia

Creator:: Simmons, Michael Lee
Abstract:: The bedrock of Thetis, Kuper, and seven adjacent islands and islets of British Columbia's Gulf Islands consists of four Late Cretaceous (Campanian) formations of the Nanaimo Group. The four, from oldest to youngest, are the Cedar District, De Courcy, Northumberland, and Geoffrey Formations. The formations vary greatly in thickness but...
Resource Type:: Masters Thesis

The geology of the east central desolation butte quadrangle, Grant County, Oregon

Creator:: Elfrink, Neil
Abstract:: Pre-Tertiary metamorphic rocks, Jurassic granitic intrusions, and Eocene basalts are exposed along the North Fork of the John Day River at its confluence with Granite Creek. Geochemical and textural evidence suggest greenschist-metamorphosed, strongly sheared, volcanogenic rocks originated in an island-arc environment. These greenstones were apparently intruded during the Late Permian...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Stratigraphy and sedimentology of the Cretaceous Nanaimo group, Saltspring Island, British Columbia

The stratigraphy and depositional setting of the Spencer Formation, west-central Willamette Valley, Oregon: a surface-subsurface analysis

The geology and stratigraphy of the lower Nanaimo group, Nanaimo, British Columbia

Bedrock geology and stratigraphy of the Late Cretaceous Nanaimo Group of the Maple Bay-Cowichan Bay area, British Columbia

Sedimentology, stratigraphy, and structure of the late cretaceous rocks of Mayne and Samuel Islands, British Columbia

Stratigraphy and depositional history of the Amsden and lower Quadrant Formations, Snowcrest Range, Beaverhead and Madison Counties, Montana

Structure and stratigraphy of the Little Sheep Creek area, Beaverhead County, Montana

Stratigraphy and depositional environments of the Mississippian Rocks, Garnet Range-Bearmouth area, Granite County, western Montana

Stratigraphy and paleoenvironments of Thetis, Kuper and adjacent Islands, British Columbia

The geology of the east central desolation butte quadrangle, Grant County, Oregon

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