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Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
Identification And Quantitation Of Volatile Amines In Marine Sediments, Chuen Mei Huang
Identification And Quantitation Of Volatile Amines In Marine Sediments, Chuen Mei Huang
Chemistry & Biochemistry Theses & Dissertations
Pore waters which were taken from sediments of the Chesapeake Bay were analyzed to determine the presence of volatile amines. A purge-and-trap technique was used to concentrate the amines. Then, following derivatization with heptaflourobutyric anhydride, the HFBA-amines were analyzed by gas chromatography with electron capture detection and with mass spectrometric detection. One secondary amine, diethylamine with a concentration of 0.3-0.6 uM, was found in a total of three pore water samples from cores collected on two different dates. A primary amine, sec-butylamine with a concentration of O. 05 AIM, was also found in one of these same samples. Another primary …
A Rapid Decomposition Method For Analyzing Zirconia, Bahattin Ayranci
A Rapid Decomposition Method For Analyzing Zirconia, Bahattin Ayranci
Bulletin of the Mineral Research and Exploration
No abstract provided.
An Example For The Multivariate Geostatistical Analyses Of Geochemical Data: Iron Mines Of Di̇vri̇ği̇ Area, Central Turkey, Taner Ünlü, Henrik Stendal
An Example For The Multivariate Geostatistical Analyses Of Geochemical Data: Iron Mines Of Di̇vri̇ği̇ Area, Central Turkey, Taner Ünlü, Henrik Stendal
Bulletin of the Mineral Research and Exploration
No abstract provided.
Organic Geochemical And Petrographic Analysis Of Pure Macerals From The Ohio Shale, Michael A. Kruge, Susan M. Rimmer, John C. Crelling
Organic Geochemical And Petrographic Analysis Of Pure Macerals From The Ohio Shale, Michael A. Kruge, Susan M. Rimmer, John C. Crelling
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
Recent advances now permit the separation of coal into constituent macerals of high purity using density gradient centrifugation (DGC). With the availability of pure macerals, the chemical structure of each can be investigated separately, without the interactive interference of the other macerals or mineral matter. The present study is a preliminary effort applying these methods to the study of oil shale kerogen.
We have used a sample from the Huron Member of the Upper Devonian Ohio Shale from Logan County, Ohio. Whole rock petrographic examination revealed intact Tasmanites, telalginite of unknown derivation and a weakly fluorescing matrix. Pyrite is abundant, …
Effect Of Water Column Ph And No3 On Ortho-Phosphate Release Rates From Freshwater Sediments, Beverly Eloise Baker
Effect Of Water Column Ph And No3 On Ortho-Phosphate Release Rates From Freshwater Sediments, Beverly Eloise Baker
Dissertations, Theses, and Masters Projects
No abstract provided.
The Stratigraphy And Geochemistry Of The Crescent Formation Basalts And The Bedrock Geology Of Associated Igneous Rocks Near Bremerton, Washington, Kenneth P. Clark
The Stratigraphy And Geochemistry Of The Crescent Formation Basalts And The Bedrock Geology Of Associated Igneous Rocks Near Bremerton, Washington, Kenneth P. Clark
WWU Graduate School Collection
A stratigraphic section developed for the Bremerton rocks in the Kitsap Peninsula suggests formation by rifting in a marine environment. Basal gabbro, dated by 40Ar/39Ar at 49.8 Ma plus or minus 0.8 Ma, and associated mafic to felsic plutonics, appear to be the source of a mafic dike complex that composes 100% of the stratigraphic level above the plutonics. These dikes are the apparent feeders to overlying submarine and subaerial volcanics. The previously unrecognized submarine sequence consists of interbedded basaltic breccia, tuffs, basalt flows, and basaltic sandstone, siltstone, and conglomerate. Approximately 1 km of columnar basalt flows cap the sequence. …