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Tectonic and thermal history of the western Serrania del Interior foreland fold and thrust belt and Guarico Basin, north central Venezuela: Implications of new apatite fission track analysis and seismic interpretation
Structural analysis, interpretation of seismic reflection lines, and apatite fission-track analysis in the Western Serrania del Interior fold and thrust belt and in the Guarico basin of north-central Venezuela indicate ...
Feldspar dissolution kinetics and equilibrium: Implications for natural and engineered systems
The chemical composition of groundwater is controlled largely by subsurface mineral/fluid interactions. Experimental measurement of plagioclase dissolution rates provides a critical means of understanding the relationship ...
Regulation of fluorine chemistry and carbonate fluorapatite stability in deep sediments beneath the Peruvian upwelling zone
Fluorine is abundant in the oceans, and carbonate fluorapatite precipitation in marine sediment is a significant removal mechanism. A paucity of data has led to several misconceptions of fluorine geochemistry and carbonate ...
Transfer of organic matter from surface waters to the sea floor: Fecal pellet flux in the Ross Sea
Moored sediment traps intercepted material for approximately one year in the southern Ross Sea, Antarctica. Fecal pellets >100 um in trap samples were classified according to morphology as tabular, ellipsoidal, or cylindrical. ...
Barium cycling in shallow sediment above active mud volcanoes in the Gulf of Mexico
Two mud volcanoes in the Gulf of Mexico were examined to understand barium cycling in shallow seafloor sediment at regions of intense methane expulsion. Due to anaerobic oxidation of methane and sulfate reduction, barium ...