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Analysis Of An Interlobate Boundary In The Wisconsinan Drift Of Kalamazoo County And Adjacent Areas In Southwestern Michigan, Norman A. Lovan

Masters Theses

A detailed investigation of selected textural and mineralogical aspects of tills in southwestern Michigan is used to define an interlobe boundary relationship between the Wisconsinan ice of the Lake Michigan and Saginaw lobes. Bedrock underlying the study area contributed little to the bulk composition of the tils investigated. However, morainal development in the study area shows strong correlation with bedrock topography.

In a discussion of the deglaciation of Michigan and the study area, a history of morainal development is reviewed and attention is focused on the reentrant district located in Kalamazoo and neighboring counties. Attempts to delineate tills of the …

Characteristics Of The Mineral And Metal Content Of Suspended Sediment, New River Basin, Tennessee, Richard H. Ketelle

Masters Theses

Large volume (80 liter) water samples were collected from five sites on four streams in the New River Basin of Tennessee for study of the suspended sediment. Parameters selected for investigation were:

(1) Sediment size distribution

(2) Mineral composition of the sediment

(3) Metal content of the sediment

(4) Extractable Fe-Mn Oxide content of the sediment

(5) Association of heavy metals with Fe-Mn oxides

Sediment was separated by gravity settling and continuous flow centrifugation. Size separations showed that most of the sediment was in the 2-5μm size range and 0.2-2μm particles were second most abundant in most samples regardless of …

Shear Waves In Glacial Till, Craig Woerpel

Masters Theses

No abstract provided.

The Geology Of The Searchlight Mining District, Clark County, Nevada, John Stewart Bown

Masters Theses

"The general area of the Searchlight mining district has been the object of various studies by geologists since 1861. The Searchlight district is located in southern Clark County, Nevada in the eastern part of the Mojave Desert at the southern end of the Eldorado Mountains. Southern Clark County is characterized by a lack of Paleozoic and Mesozoic rocks. A Precambrian complex of rocks mostly gneiss in the southwest corner of the district is non-conformably overlain by Tertiary extrusive rocks about 8,500 feet (2,590 meters) thick consisting of andesite, basalt, rhyolite, and pyroclastics. Both the gneiss and volcanic assemblage were intruded …

Geology Of The Stateline District, Utah-Nevada, Terry Moore Collins

Masters Theses

"The rocks exposed in the Stateline District, Iron County, Utah and Lincoln County, Nevada, are Tertiary volcanics, which serve as hosts for gold and silver bearing quartz veins. The Miocene rhyolites and dellenites, a possible caldera, cupola-associated rock textures, and the faults and styles of deformations indicate the geologic setting of Stateline is in harmony with the tectonic framework of the southern Great Basin. Four map units, subdivided into nine members, are recognized. X-ray fluorescence analyses for SiO₂, TiO₂, Fe₂O₃, CaO, and K₂O differentiated the map units, while variations in the primary quartz, sanadine, plagioclase, biotite, hornblende, and total crystal …

Geology And The Barite Potential Of The Raymond Widel Area, Cooper County, Missouri, German Francisco

Masters Theses

"The Raymond Widel barite prospect is two miles northeast of Blackwater Town, in parts of Sections 23, 24, 25, and 26, T49N, R19W, Cooper County, Missouri. Reported in the area since the 1850's barite-galena deposits have been sporadically mined.

The Burlington-Keokuk and Warsaw formations of Mississippian age are exposed. The former is composed of coarse-grained limestone with abundant fossils, and the latter is a fossiliferous cherty limestone. These reach a thickness of over 200 feet. Local structures are not significant, but regional fold and fault structures are present outside the area.

Exploration drilling consisted of 31 drill holes ranging from …

Malacostracan Crustacea From The Sundance Formation (Jurassic) Of Wyoming, Elizabeth M. Herrick

Masters Theses

No abstract provided.