Now showing items 1-10 of 318
Structure and stratigraphy of lower Paleozoic rocks, Doonerak Window, central Brooks Range, Alaska
Deep structural levels of the Brooks Range thrust belt, and a unique sequence of lower Paleozoic rocks (informally named the Apoon assemblage) are exposed in a structural high near Mount Doonerak. Previous workers interpreted ...
Pliocene-Pleistocene depositional sequences of the northern Gulf of Mexico, offshore Texas and Louisiana
This work tests the consistency of sequence stratigraphic methods by comparing the model documented in this study with previous models for growth faulted, siliciclastic environments. Interpretations derive from sequence ...
Seismic-stratigraphic analysis of shelf-margin delta/slope fan and basin floor fan on high-latitude and middle-latitude margins (Ross Sea, Weddell Sea and Alabama/West Florida shelf): Paleoclimatic and eustatic implications
This dissertation consists of three chapters describing seismic stratigraphic studies in three very different continental margin settings. The first chapter discusses the northwestern Ross Sea, the second discusses the ...
Meteorite evidence for deep crustal magma chambers on Mars suggests crustal growth driven by underplating and intrusion
Meteorite RBT04262 is one of only two Martian meteorites made of composite lithologies. Lithology 1 is composed of coarse-grained olivines enclosed in poikilitic pigeonites, resembling lherzolitic shergottites. Lithology ...
Seismic waveform tomography with multicomponent data at a groundwater contamination site
This thesis develops an SH-wave version of frequency-domain, full waveform tomography, and applies it, together with traditional acoustic waveform tomography, to a multicomponent seismic data set acquired over a shallow ...
FACIES OF LATE PLEISTOCENE GLACIAL MARINE SEDIMENTS ON WHIDBEY ISLAND, WASHINGTON
Detailed mapping of over 10 kms of cliff exposure on Whidbey Island, Washington has resulted in the recognition of six major lithofacies within "Everson" age glacial-marine deposits (late-Pleistocene). These lithofacies ...