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Evidence for methanogenesis on slope sites during the late Paleocene and early Eocene: Carbonate concretions from the Dukla Nappe, outer Carpathians, Poland
The late Paleocene to early Eocene was a prolonged period of global warming punctuated by abrupt intervals of rapid temperature rise. These hyperthermal events, especially including the Paleocene-Eocene thermal maximum, ...
Geochemistry of magnesian granulites in feldspathic lunar meteorites Allan Hills A81005 and Dhofar 309
Magnesian granulites in Allan Hills A81005 and Dhofar 309 may possess the geochemical signature of the Moon's Feldspathic Highlands Terrane (FHT). Previous work on Apollo granulites suggests the presence of a high Mg/Fe, ...
Investigation on the generation of primitive basalts in the southern Washington Cascades
An investigation of the petrography, mineralogy and chemistry of primitive basalts found in a E-W transect of southern Washington and northern Oregon provides constraints concerning the thermal structure and composition ...
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 ...
Reconstruction of eastern Pacific climate variability using multiple geochemical tracers in Cocos Island corals
Multiple isotopic and geochemical tracers were employed to unravel the complex history of recent environmental variability at Cocos Island. Downcore variations in delta18O, U/Ca, Sr/Ca, and Ba/Ca within coral skeletal ...