Physical Sciences and Mathematics Commons^™

Structural Geology Of The Southern Part Of Elkhorn Mountain, Bannock Range, Idaho, George A. De Vries

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The area of southern Elkhorn Mountain, a previously unmapped area, is located north of Malad City, Idaho, in the Bannock Range. The mapped area is within the Basin and Range province. The mapped area measures 5.9 miles in the north-south direction and approximately 8.8 miles in the east-west direction.

The oldest stratigraphic unit, in the mapped area, is the Ute Formation of Middle Cambrian age. Other units of Cambrian age, in ascending order, are: Blacksmith Formation, Bloomington Formation, Nounan Formation, and St. Charles Formation. The units of Ordovician age are the Garden City and the Swan Peak Formations. The youngest …

Synecology And Faunal Succession Of The Upper Mississippian Great Blue Limestone, Bear River Range And Wellsville Mountain, North-Central Utah, Alan P. Sweide

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The late Mississippian Great Blue Limestone was studied at four locations around Cache Valley, Utah. One location was at Dry Lake in the Pisgah Hills to the west of Cache Valley. Three locations were in the Bear River Range to the east of Cache Valley. From north to south the locations are: 1) Beirdneau Peak, 2) Logan Peak, and 3) the ridge to the north of East Fork Canyon. The Dry Lake location represents the upper, middle, and some of the lower part of the section. The base of the section is covered. Locations in the Bear River Range represent …

Development Of Sulfide-Hosting Structures And Mineralization, Pine Point, Northwest Territories, James Richard Kyle

Digitized Theses

No abstract provided.

Petrology Of The Crystalline Rocks Of Vedder Mountain, British Columbia, Mitchell L. Bernardi

WWU Graduate School Collection

Vedder Mountain lies in Washington state and British Columbia on the western flank of the North Cascades. Metamorphic rocks, which comprise most of the western half of the mountain, can be divided into two separate and distinct units. The southern unit is composed of foliated and non-foliated hornblende-plagioclase gabbro with minor serpentinite and pyroxenite. Most of the gabbroic rocks are sheared and altered and exhibit a lower greenschist facies metamorphism overprinted by a subsequent prehnite-pumpellyite facies metamorphism. Whole-rock chemical analyses of the gabbros plot in and near the fields defined by oceanic gabbro (Engel and Fisher, 1969; Miyashiro et al, …