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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
(2009)
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, ...
Petrogenesis of plutons and hypabyssal rocks of the Bering Strait region, Chukotka, Russia
(1998)
Subduction of an oceanic plate beneath the Bering Strait region resulted in the formation of an extensive magmatic belt along the margin of the region during the Cretaceous. Plutons and gneiss domes of this age are broadly ...
Geochemistry of magnesian granulites in feldspathic lunar meteorites Allan Hills A81005 and Dhofar 309
(2007)
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, ...
Trace element geochemistry of basalts from the Oregon Cascade Range: Implications for magma generation and possible variations in the sub-arc mantle
(1998)
Analyses of Oregon Cascades basalts reveal two groups of High Cascades (9-0 Ma) lavas: (1) "enriched" basalts with high Ba, Sr, Ba/Nb, and Ba/La, and (2) "depleted" basalts with flat rare earth element patterns and relatively ...
Boron metasomatism in the Alta stock contact aureole, Utah
(1995)
The effects of fluid evolution and infiltration in the Alta stock contact aureole, Utah, were studied by evaluating chemical additions and depletions in igneous, replacement skarn, and carbonate whole-rock samples. Of the ...
Investigation on the generation of primitive basalts in the southern Washington Cascades
(2004)
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
(2005)
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 ...
The Caribbean carbonate crash at the middle to late Miocene transition and the establishment of the modern global thermohaline circulation
(1999)
The Caribbean carbonate crash was a time of increased regional carbonate dissolution at the middle to late Miocene transition. It is marked by five dissolution episodes, occurring from 12-10 Ma, characterized by significant ...
Reconstruction of eastern Pacific climate variability using multiple geochemical tracers in Cocos Island corals
(2000)
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 ...