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Creator:: McQuay, Erica L.
Abstract:: Large barite (BaSO4) structures mark cold seeps in the southern San Clemente Basin. Barium flux to San Clemente sediments is two to three times greater than fluxes measured in surrounding California Borderland basins. Analyses of sediment trap material, water column samples, sediments and pore water indicate that expected bariumbearing mineral...
Resource Type:: Masters Thesis
Full Text:: accumulating in San Clemente sediments at an average rate of approximately 11 μmol m-2 day-1, a value that is

Creator:: Qiu, Xuemei
Abstract:: Two separate research projects are described here. One involves development of a new analytical method for determination of Ba in seawater and other natural waters. The other is a collaborative field study of the chemistry of Lake Issyk-Kul, Kyrgyzstan. The method project explored an ion chromatography-fluorescence detection bench-top approach for...
Resource Type:: Masters Thesis
Full Text:: deep-water renewal: Lake Issyk-Kul, Kyrgyzstan." by M. K. Vollmer, R. F. Weiss, R. T. Williams, K. K

Creator:: Hsieh, Chih-Ting
Abstract:: The distribution of barite (BaSO₄) in marine sediments has long been studied as a proxy for paleoproductivity. While pure barite is known to be a stable mineral in oxic sediments, it is also known that variations in the Sr/Ba ratio influence its solubility and liability during early diagenesis. To extract...
Resource Type:: Masters Thesis
Full Text:: : 10 mM HNO3; E2: 0.02 M hydroxylamine in 25% (v/v) acetic acid; E3: 0.1 M DTPA (pH~10); E4

Creator:: Stevens, Andrew W.
Abstract:: During two cruises in February and June of 2003, the erodibility of sediment along the western Adriatic Sea was measured using a "Gust erosion chamber". In addition, the surficial sediment properties were characterized through a suite physical and biological measurements including porosity, grain-size, inorganic carbon, organic carbon and colloidal carbohydrate....
Resource Type:: Masters Thesis
Full Text:: ). The flood-deposit formed in water depths between 5 and 29 m with maximum thicknesses directly off the

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