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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...
Geochronology, Geochemistry and Sr-Nd-Pb-Hf Isotopes of No. I Complex from the Shitoukengde Ni–Cu Sulfide Deposit in the Eastern Kunlun Orogen, Western China: Implications for the Magmatic Source, Geodynamic Setting and Genesis
Sr-Nd-Pb-Hf isotopes crustal contamination oceanic slab break-off post-collisional extension Shitoukengde Ni-Cu deposit Eastern Kunlun Orogen
2018/4/10
The Shitoukengde Ni-Cu deposit, located in the Eastern Kunlun Orogen, comprises three mafic–ultramafic complexes, with the No. I complex hosting six Ni-Cu orebodies found recently. The deposit is host...
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...
Fluid geochemistry and seismic activityin the period 1998-2002 at Turrialba Volcano (Costa Rica)
volcanic gases volcanic hazard geochemical monitoring geophysical monitoring Turrialba Volcano
2015/9/15
Turrialba Volcano, located in Central-Southern Costa Rica, has been characterized, since the last period of eruptive activity in 1884-1886, by a weak and discontinuous fumarolic activity in the wester...
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, ...
Interannual and Subdecadal Variability in the Nutrient Geochemistry of the Cariaco Basin
Interannual and Subdecadal Variability Nutrient Geochemistry Cariaco Basin
2015/7/17
The CARIACO Ocean Time Series program has made monthly measurements of oxygen, nutrients, and carbon system parameters (∑CO2, alkalinity, pH) in the Cariaco Basin since 1996. At the same time, sedimen...
Lava Geochemistry as a Probe into Crustal Formation at the East Pacific Rise
Lava Geochemistry Crustal Formation East Pacific Rise
2015/7/14
Basalt lavas comprise the greatest volume of volcanic rocks on Earth, and most of them erupt along the world's mid-ocean ridges (MORs). These MOR basalts (MORBs) are generally thought to be relatively...
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...
Tracking the Evolution of Mid Cenozoic Silicic Magma Systems in the Southern Chocolate Mountains Region, California Using Zircon Geochemistry and Quartz and Zircon Geothermometry
Chocolate Mountains zircon quartz geothermometer geochemistry
2015/1/16
During the mid Cenozoic, the Chocolate Mountains region of southeastern California experienced crustal extension slightly before, during, and after the main pulse of magmatism. This combined with mid-...