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,...
The thesis area includes 44 square miles of the Centennial
Range in Beaverhead County, Montana, and Clark County, Idaho.
The rocks exposed in the area range in age from Precambrian
to Recent and have been divided into 23 mapped units. Pre-Belt
metamorphic basement rocks are overlain unconformably by 3,433
feet...
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,...
The Duke Point-Kulleet Bay area is located on the southeast
coast of Vancouver Island, B.C., approximately 60 miles northwest
of Victoria, B.C. and 25 miles west, across the Strait of Georgia,
from Vancouver, B.C. Approximately 2500 feet of Late Cretaceous
sedimentary rocks of the Nanaimo Group are exposed within the...
Late Cretaceous sedimentary marine and deltaic rocks of
Gabriola Island were mapped and studied during the summer of 1971.
Cretaceous strata constitute all the exposed outcrops on the island,
which is the northernmost of the Gulf Island chain of British Columbia.
The upper four formations of the Nanaimo Group are...
Seven formations of the Upper Cretaceous Nanaimo Group
sedimentary rocks are exposed on Saturna and Tumbo Islands. These
formations are, from oldest to youngest, the Extension-Protection,
Cedar District, DeCourcy, Northumberland, Geoffrey, Spray, and
Gabriola. The rocks represent four successive cycles of deltaic
sedimentation, the oldest and the youngest of which...
Approximately 23 square miles of the east-central part
of the Tendoy Range are included in the thesis area which
lies three miles west of Dell, Montana.
Rocks ranging in age from Late Mississippian to Recent
are exposed in the study area. The upper Paleozoic section
includes approximately 4,200 feet (1,281...