Date of Award

1-1-2009

Language

English

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

College/School/Department

Department of Atmospheric and Environmental Sciences

Program

Geological Sciences

Content Description

1 online resource (xi, 532 pages) : illustrations (some color), maps

Dissertation/Thesis Chair

John W Delano

Committee Members

William S F Kidd, Braddock K Linsley, Charles A Ver Straeten

Keywords

Apatite, Geochemical fingerprinting, K-Bentonite, Melt inclusion, Millbrig, Toba, Analytical geochemistry, Geology, Stratigraphic, Volcanoes, Ordovician Geologic Period, Pleistocene Geologic Epoch

Subject Categories

Geochemistry | Geology

Abstract

Chemical fingerprints of volcanic airfall deposits obtained from high-precision electron microprobe analysis of glass and phenocrysts phases provide geochemical correlations with temporal precision unattainable by other methods. In this research electron microprobe analysis (EMA) techniques, to fingerprint chemically and correlate fresh and altered volcanic airfall deposits, have been utilized to test the value of this tool for future research on stratigraphic correlation. The following samples were chosen from within a variety of sedimentary rocks widely separated spatially and temporally:

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