搜索结果: 1-15 共查到“知识库 地质学 Geochemistry”相关记录51条 . 查询时间(0.034 秒)
Carbon Geochemistry of Gas Hydrate-associated Sediments in the Southwestern Taiwan Basin
southwestern Taiwan Basin carbon geochemistry environmental conditions archaea gas hydrate
2018/4/10
Marine gas hydrates, one of the largest methane reservoirs on Earth, may greatly affect the deep sea sedimentary environment and biogeochemistry; however, the carbon geochemistry in gas hydrate-bearin...
Platinum-Group Elements Geochemistry and Chromian Spinel Composition in Podiform Chromitites and Associated Peridotites from the Cheshmeh-Bid Deposit, Neyriz, Southern Iran: Implications for Geotectonic Setting
Cheshmeh-Bid Chromitite trace elements platinum-group elements boninitic magma supra-subduction zone
2018/4/10
Dunite and serpentinized harzburgite in the Cheshmeh-Bid area, northwest of the Neyriz ophiolite in Iran, host podiform chromitite that occur as schlieren-type, tabular and aligned massive lenses of v...
Two Types of Granites in the Western Yangtze Block and Their Implications for Regional Tectonic Evolution: Constraints from Geochemistry and Isotopic Data
I-type granite S-type granite geochemistry petrogenesis tectonic setting Western Yangtze Block
2018/4/10
In the western Yangtze Block, widespread Mesoproterozoic to Neoproterozoic rocks are the key to understanding the Precambrian tectonic-magmatic evolution of the region. However, their petrogenesis and...
Mineral composition and organic geochemistry of the Lower Cretaceous Xiagou Formation source rock from the Qingxi Sag, Jiuquan Basin, Northwest China
Mineral composition Geochemistry Source rock Xiagou Formation Qingxi Sag Jiuquan Basin
2018/4/2
The Lower Cretaceous Xiagou Formation contains the major source rocks for the crude oils discovered in the Qingxi Sag and the South Uplift in the Jiuquan Basin, northwestern China. The Xiagou Formatio...
Geochemistry and zircon U–Pb age of subvolcanic rocks in Dajing deposit, NE China: Geodynamic implications
Dajing deposit subvolcanic rocks U–Pb dating geochemistry
2017/4/11
The Dajing deposit is a large-scale vein-type polymetallic Sn deposit in the southern Great Xing’an Range of Northeast
China. This study presents new geochronological and geochemical data for subvolc...
Geology and geochemistry of ferromanganese nodules in the Japanese Exclusive Economic Zone around Minamitorishima Island
ferromanganese nodule critical metals high acoustic reflectivity exclusive economic zone Minamitorishima Island
2017/4/10
A dense field of ferromanganese (Fe-Mn) nodules was discovered on a seamount approximately 300 km east of
Minamitorishima Island, in the Japanese Exclusive Economic Zone. To evaluate its potential as...
Geochemistry of REY-rich mud in the Japanese Exclusive Economic Zone around Minamitorishima Island
REY-rich mud rare-earth elements geochemistry deep-sea mineral resources
2017/4/10
We report detailed lithological and chemical characteristics of deep-sea sediments, including rare-earth elements and
yttrium-rich mud (REY-rich mud), in the Japanese Exclusive Economic Zone (EEZ) ar...
Gas geochemistry for the Los Azufres (Michoacán) geothermal reservoir, México
Los Azufres geothermal field gas geochemistry geothermal gas equilibria reservoir exploitation
2015/9/10
Gas data of the Los Azufres geothermal field were analyzed using a method based on equilibrium of the Fischer-
Tropsch (FT) reaction: CH4 + 2H2O = 4H2 +CO2 and on the combined pyrite-hematite-magneti...
The 8th ICGG International Conference on Gas Geochemistry Preface: Fluids and tectonics
fluids Geochemistry tectonics
2015/9/2
The 8th International Conference on Gas Geochemistry provided the opportunity
for scientists from different countries to meet each other, exchange ideas on the
state of the art in gas geochemistry, ...
Re–Os isotope geochemistry in the surface layers of ferromanganese crusts from the Takuyo Daigo Seamount, northwestern Pacific Ocean
ferromanganese crust Re and Os isotopes geochemistry Takuyo Daigo Seamount northwestern Pacific Ocean
2017/4/10
Os isotope compositions in ferromanganese crusts (Fe–Mn crusts) have been used for the dating of model ages from
present to the Late Cretaceous. This dating method assumes that the Fe–Mn crusts prese...
Geochemistry and Inorganic Carbon Transport of a Glacial Till Drumlin at a Road Salt Facility
road salt total dissolved inorganic carbon transport
2014/10/31
Investigations were conducted at a salt/premix storage facility lying on top of a glacial drumlin near the coastline in eastern Massachusetts, to characterize salt contaminated groundwater. Groundwate...
Isotope geochemistry and its implications in the origin of Yangla copper deposit, western Yunnan, China
Yangla copper deposit isotopes western Yunnann
2017/4/10
The Yangla copper deposit is located in western Yunnan Province, China, with an estimated Cu reserve of approximately
1.2 million tons. It is a typical giant copper deposit, and its mining started on...
Rare earth element geochemistry of waters and suspended particles in alkaline lakes using extraction and sequential chemical methods
rare earth elements alkaline lake dissolved suspended particles sequential chemical extractions
2017/4/11
The concentrations of rare earth elements in the waters and suspended particles from two alkaline lakes in a carbonate
drainage basin of the South China Karst region were determined via ICP-MS. Seque...
Rare earth element geochemistry of waters and suspended particles in alkaline lakes using extraction and sequential chemical methods
rare earth elements alkaline lake dissolved suspended particles sequential chemical extract
2017/4/11
The concentrations of rare earth elements in the waters and suspended particles from two alkaline lakes in a carbonate
drainage basin of the South China Karst region were determined via ICP-MS. Seque...
Origin of boron in the Damxung Co Salt Lake (central Tibet): Evidence from boron geochemistry and isotopes
boron geochemistry origin quaternary deposits Damxung Co Salt Lake Tibet
2017/4/11
The origin of boron in boron-rich salt lakes in the Tibetan Plateau has long been the subject of debate. The Damzung
Co Salt Lake in central Tibet has high boron concentrations (B = 276–313 mg/L) and...