搜索结果: 1-10 共查到“地质学 deep-sea”相关记录10条 . 查询时间(0.718 秒)
Origin and fate of deep-sea seeping methane bubbles at Kuroshima Knoll, Ryukyu forearc region, Japan
thermogenic hydrocarbons methane hydrates carbon isotopes helium isotopes Kuroshima Knoll microbial alteration propane
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2017/8/9
Seafloor seeping methane bubbles were successfully sampled on the summit area of the Kuroshima Knoll (depth of ca. 640 m) using the gas-tight sampler WHATS attached to the Shinkai 2000. To evaluate th...
Contribution of Eocene sharks and rays from southern France to the history of deep-sea selachians
SW France Eocene Deep-sea selachians Fossil record
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2009/10/20
Fossil deep-sea selachians are rare and their diversity underestimated as a consequence of the scarcity of available outcrops of sediments containing them. Here we report a new fossil locality from th...
Stable isotopes in deep-sea corals and a new mechanism for “vital effects”
Stable isotopes deep-sea corals new mechanism vital effects
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2014/4/9
Offsets from isotopic equilibrium in biogenic carbonates have complicated paleoclimate reconstructions for decades. A new archive of climate, deep-sea corals, is used to evaluate the calcification pro...
Reconstructing Last Glacial Maximum bottom water salinities from deep-sea sediment pore ￡uid pro￠les
paleo-salinity di¡ usion Last Glacial Maximum
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2014/4/9
Deep-sea sediment pore fluids contain a record of past glaciations in their [Cl] and N18O. The signal of the Last Glacial Maximum (LGM) ice volume increase remains in the pore fluids as a local peak i...
Zeolite Distribution in Volcaniclastic Deep-sea Sediments from the Tonga Trench Margin (SW Pacific)
Analcime Miocene tuffs Mordenite Pore-water Thermal pulse Tonga Trench margin Wairakite Zeolite distribution
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2011/12/1
Abstract: 605 m of sediments were cored in Hole 841 of the Ocean Drilling Program (ODP) at the Tonga Trench margin. The sedimentary sequence consists mainly of Miocene vitric siltstones, vitric sandst...
Isothermal Diffusion of Eu and Th in Deep-Sea Sediments: Experimental Results and a Numerical Model
Deep-sea sediments Diffusion Europium Partition coefficient Sorption Thorium
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2012/1/12
Batch data for the sorption of Eu and Th on pelagic sediments may be represented by equations of the form: ln M = A ln Cs + B/T + D, where M = concentration of sorbate on sediment, Cs = concentration ...
Nontronite in a Deep-Sea Core from the South Pacific
Age Charge density Deep sea Iron Mossbauer spectroscopy Nontronite Oxygen isotopes
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2012/2/6
Smectite close to the pure Fe end member of the nontronite-beidellite series was found in the fine clay separated from a 354-cm deep sediment core in the southwestern Pacific Basin. The mineral has a ...
Mineralogy, O18/O16, and D/H Ratios of Clay-Rich Sediments from Deep Sea Drilling Project Site 180, Aleutian Trench
Deep sea sediments D/H Isotopic ratios O18/O16 Provenance
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2012/2/8
Mineralogy, O18/O16, and D/H ratios have been determined in five size fractions (<0.1, 0.1?.5, 0.5?.0, 1.0?.0, and >2.0祄) of seven samples taken from 500 m of Pleistocene deep-sea sediments cored at D...
A Method for the Quantitative Estimation of Clay Minerals in North Pacific Deep-Sea Sediments
Clay Distribution Clay Quantification Deep-sea Pacific X-ray Methods
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2012/2/9
The addition of a 10% talc internal standard to North Pacific sediments allows the relative abundances of clay minerals to be determined both accurately and precisely by X-ray powder diffractometry. L...
GEOCHEMISTRY AND ORIGIN OF A DEEP-SEA PACIFIC PALYGOR-SKITE DEPOSIT
GEOCHEMISTRY DEEP-SEA PACIFIC PALYGOR-SKITE DEPOSIT
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2011/11/7
GEOCHEMISTRY AND ORIGIN OF A DEEP-SEA PACIFIC PALYGOR-SKITE DEPOSIT.