The Bouguer gravity field, deterrmined from 395 measurements in Giles County, Virginia exhibits a broad positive anomaly approximately 12 mgal in amplitude situated over the Bane Dome, and several smaller anomalies of a few milligals amplitude. For the most part they are produced by the distribution of relatively high density carbonate rocks and lower density clastic rocks within the dome. These anomalies can be explained by two contrasting interpretations of the structure of the Bane Dome. One interpretation, represented by the geologic cross sections of Woodward and Gray (Woodward, 1985) and Bartholomew (personal communications, 1987) suggests that the dome is cored by a relative abundance of high density carbonate rocks transported by overthrusting within the Narrows thrust sheet. Because the gravity anomalies can be entirely explained by sources confined to the Narrows thrust sheet, this interpolation precludes the existence of significant lateral density contrasts associated with deeper structure beneath the decollement zone in the Rome Formation. The contrasting interpretation represented by the cross section of Gresko (1985), suggests a smaller proportion of carbonate rocks in the core of the dome due to duplex structures in the lower density clastic rocks. This interpretation proposes high angle faults with associated lateral density contrasts in the deeper rocks underlying the decollement. Because sources within the Narrows thrust sheet are insufficient to completely account for the gravity anomalies, the density contrasts associated with deeper structure are required. The Bouguer gravity field can be separated into regional and residual parts. The regional field is caused by changes in crustal thickness known independently from the seismic measurements of James, Smith, and Steinhart (1968). The remaining residual field can be explained in terms of anomaly sources within the upper 10 km of the crust. / Master of Science

Slope stability maps are useful in seismic hazard evaluation, land use and emergency planning, and geomorphological studies. Such maps were generated for Giles County, Virginia (approximately 1000 square km) by the synthesis of data sets for topographic slope, surficial deposits, geologic structure, and seismic slope response. Both graphical and digital techniques were used to generate a topographic slope map. Relevant limiting slope angles according to seismic shaking and land movement studies are <15, 15-35, and >35 degrees. These slope categories were integrated with geologic factors (presence/absence of colluvium; dip direction of bedrock) to develop a set of 12 slope stability categories tailored to the Appalachian Valley and Ridge geologic/topographic province. The techniques developed are directly applicable anywhere in the Appalachian Valley and Ridge province and can be adapted to other similar physiographic provinces. Both the slope map and the regional slope stability map can be produced graphically or digitally. The graphical method is inexpensive and fast when used to examine the detailed slope stability of a small area (7.5 minute quadrangle or less about 150 square km). The computer method but is more cost-efficient than the graphical method when studying the slope stability of larger areas. The location and type of slope movement triggered by seismic shaking, torrential rainfall, rapid snowmelt, or human activities can be estimated with the use of a regional slope stability map. Integration of the slope stability map with additional factors (such as joint pattern, seismic intensity attenuation pattern, or the local water table) results in a more detailed map for specific site studies. / M.S.

Thesis advisor: Jean-Luc Solère / This dissertation pursues a philosophical analysis of the epistemic claims of the discipline of theology--a intellectual discipline whose unique identity was being crafted in the high and late Middle Ages. In particular, this study focuses on how the theologian can both rely on "faith" and "authority" while also claiming to acquire a kind of knowledge that the simple believer does not have. The prologue to Sentences Commentary of the Augustinian, Gregory of Rimini, is the focal point of the dissertation, since the "prologue" is the typical place for theologians to philosophically reflect on the nature of their discipline. However, Rimini will be considered carefully in light of his fourteenth-century context. The study will look specifically at those thinkers Rimini directly engages with: namely, Aquinas, Duns Scotus, Peter Aureoli, William of Ockham and Adam Wodeham. But, in light of Rimini's status as an Augustinian hermit, the study will also be attentive to the tradition of Augustinian theologians that precede Rimini; most notably, this is Giles of Rome, star pupil of Aquinas and the intellectual father of the Augustinian Order. / Thesis (PhD) — Boston College, 2012. / Submitted to: Boston College. Graduate School of Arts and Sciences. / Discipline: Philosophy.

No description available.

Master of Science

The purpose of this study was (1) to determine some of the problems in family foods and nutrition of dual-role mothers in Giles County, Virginia, and (2) to make recommendations of types of assistance homemaking teachers could render these mothers in solving some of their problems. Using schedule forms especially prepared for this study, information relating to problems in family foods and nutrition was personally collected from 32 mothers, and by mail from 32 mothers. None of the respondents had children who had reached the eighteenth birthday. Study of the data obtained on the schedule forms showed that the mothers who participated in this investigation were generally poor managers of time, energy, and available resources, had inadequate knowledge of nutrition, and failed to exercise desirable kitchen and shopping practices. The investigator recommends that homemaking teachers (1) emphasize experiences which lead to better use of time, energy, and available resources and (2) consider possible ways and means of promoting adult education programs which will meet the needs of the dual-role mothers. / Master of Science

M.S.

The Spruce Run Mountain area embraces about 45 square miles in the south-central portion of Giles County. It lies wholly within the Appalachian Valley and Ridge Province. The rocks exposed in the Spruce Run Mountain area range in age from Middle Cambrian to Lower Devonian. All the rocks are sedimentary rocks deposited in a marine environment and have an aggregate thickness of approximately 6,500 feet. An important disconformity separates rocks of Lower Ordovician age from those of Middle Ordovician age. The Saltville thrust, a southeast dipping thrust fault, crosses the Spruce Run Mountain area trending northeast. The thrust separates Middle Cambrian dolomite from Ordovician formations on the southeast flank of the Spruce Run Mountain syncline. The Spruce Run Mountain syncline is a northeast trending overturned syncline with a southeast dipping axial surface. The Clover Hollow anticline and the Bane anticline border the northwest flank of the Spruce Run Mountain syncline. The geomorphology and geologic history of the area are briefly discussed. / Master of Science

In the vicinity of Hoges Store, Giles County, Virginia, certain portions of the Five Oaks and Elway limestones containing more than 97 per cent calcium carbonate crop out near the event of the Thessalia anticline and John's Creek syncline and underlie an extensive area where dips probably are less than 20 degrees. Locally, part of the Benbolt, Gratton, and Witten are also high-calcium limestone. Sites for core drilling and possible subsequent mining or quarrying are inferred from study of exposed rocks, by chemical analyses of channel samples of selected zones of high-calcium limestones and by detailed geologic mapping. The report includes columnar sections showing the character and thickness of the limestone units. One large deposit of chemical-grade limestones was found about 1.5 miles northeast of Hoges Store, which is believed to underlie a large area wherein dips of the mineable strata are less than 15 degree. The amount of recoverable stone is estimated to be 80 million tons. Suggested locations for core drilling are shown. An anticline, two synclines and an intricate structure are the structural features of the area of study. The major structural features of Giles County are delineated on a sketch map. / Master of Science

[none] / Master of Science