Physical Sciences and Mathematics Commons^™

Allozyrne Variation Within And Between Populations Of Ruth's Golden Aster, Pityopsis Ruthii (Small) Small, Steven A. Sloan

Masters Theses

Genetic structure of the two known populations of Ruth's golden aster, Pityopsis ruthii (Small) Small, was determined. Pityopsis ruthii is a rare, endemic plant species restricted to exposed phyllite and graywacke rock outcrops in the flooding zones of the Hiwassee and Ocoee River drainages in Polk County, Tennessee. There are an estimated 10,000 to 15,000 P. ruthii plants on the Hiwassee and ~600 on the Ocoee River. Patterns of variation at three enzyme loci were examined. Two loci, Pgm-2 and Prx-1, were polymorphic in both river populations. Despite limited habitat and subsequent restricted ranges (~ 5 kmalong each river), populations …

Structure, Stratigraphy, And Metamorphism Of A Part Of The Columbus Promontory, Western Inner Piedmont, North Carolina, Gregory M. Yanagihara

Masters Theses

The geology of the Inner Piedmont in a part of southwestern North Carolina, called the Columbus Promontory, is characterized by a complex history involving high grade metamorphism and penetrative ductile deformation. This study involved detailed (1:24,000) geologic mapping, petrography, whole rock geochemical analysis, and structural analysis to study the stratigraphy, structural geology, and metamorphism of a part of the Columbus Promontory.

Rocks in the study area can be divided into three major lithotectonic units, each separated by a ductile thrust fault, and strike NE and dip gently to the SE. Unit 1, theStructurally lowermost and northwesternmost unit in the study …

Stratigraphy And Structure Of Part Of The Western Blue Ridge Foothills, Polk And Monroe Counties, Tennessee, Mark W. Carter

Masters Theses

The Upper Proterozoic Walden Creek Group (Ocoee Supergroup) is a thick sequence of metasedimentary rocks that underlies the western Blue Ridge Foothills belt in eastern Tennessee. Traditional interpretation suggests that rocks of the Walden Creek Group represent synrift sedimentation along the Late Proterozoic Laruentian margin. These rocks were later regionally metamorphosed, cleaved, folded, and thrust westward during two Paleozoic orogenies (Taconic and Alleghanian). Recent hypotheses from uncorroborated paleontological evidence suggest that the Walden Creek Group is no older than Silurian, deposited into a post-Taconic successor basin, and subsequently metamorphosed and deformed only during the Alleghanian orogeny. Stratigraphic and structural data …