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Scientists take cues from Jules Verne to study life at the 'center of the Earth'（图）
Scientists Jules Verne center of the Earth
2019/11/22
In a modern-day journey to the center of the Earth, scientists are exploring the depths of the Soudan Underground Mine in Minnesota's Vermilion Range.There the researchers are working to understand th...
Relationship between CAIs and chondrules: A case study of a compound chondrule from the Allende (CV3) meteorite
chondrule calcium-aluminium rich inclusion CV chondrite oxygen isotopes silicon isotopes
2017/4/10
We report the mineralogy, petrology, major, minor and trace element geochemistry, O and Si isotopes of a complex
compound chondrule from the Allende meteorite. The chondrule contains zones of refract...
Evidence for the solar wind in lunar magmas: A study of slowly cooled samples of the Apollo 12 olivine basalt suite
hydrogen isotopes melt inclusions mare basalts SIMS lunar olivine
2017/4/10
While it is now recognized that the Moon has indigenous water and volatiles, their total abundances are unclear, with
current literature estimates ranging from nearly absent to Earth-like levels. Sim...
Long-term geochemical monitoring and extensive/compressive phenomena: case study of the Umbria Region (Central Apennines, Italy)
geochemical monitoring seismicity helium thermal waters
2015/9/10
Long-term geochemical monitoring performed in the seismic area of the Umbria-Marche region of Italy (i.e. Central
Apennines) has allowed us to create a model of the circulation of fluids and interpre...
Photosynthesis leaves behind a unique calling card, a chemical signature that is spelled out with stable oxygen isotopes, according to a new study in Science. The findings suggest that similar isotopi...
Experimental study of rare earth element partitioning between calcite and sodium chloride solution at room temperature and pressure
rare earth elements lanthanide calcite partition coefficient calcium carbonate
2017/4/11
The rare earth element (REE) partition coefficients between calcite and aqueous solution were obtained experimentally
under the conditions of pH, ionic strength and REE concentration level in the par...
Geochemical study of groundwater in the Sho river fan, Toyama Prefecture for heat usage by geothermal heat pump
groundwater heat usage hydrogen isotope oxygen isotope scale geothermal heat pump
2017/4/11
Chemical and isotopic (D, 18O) compositions of 40 shallow groundwater, 14 observation well water and 2 river water
samples in the Sho river fan, Toyama, northern part of central Japan, were analyzed ...
Geochemical, stable isotope, and numerical modeling studies of sake and groundwater for identification of the location of sake production: A case study from Hakusan City, Japan
sake oxygen isotope Ishikawa groundwater modeling
2017/4/11
Understanding the source and chemical characteristics of groundwater used for sake production is an important strategy
for the quality management of sake brewing. Oxygen isotope ratios (δ18O) of 96 s...
Sediment erosion revealed by study of Cs isotopes derived from the Fukushima Dai-ichi nuclear power plant accident
Fukushima Dai-ichi nuclear power plant accident Cs isotopes erosion Vietnam mega-delta
2017/4/11
Deltaic sediments of the Mekong River delta sampled from a tidal beach in Vietnam during the wet season (late
October 2011) showed strong 137Cs and 134Cs activities reflecting radionuclides released ...
Sulfur isotopic study of ore minerals and altered host rocks of Neogene–Quaternary overprinting hydrothermal systems in the Toyoha–Muine area, southwest Hokkaido, Japan
sulfur isotopes overprinting hydrothermal systems ore minerals alteration Toyoha–Muine
2017/4/11
Sulfur isotopes in vein sulfides (galena, sphalerite, and pyrite) and pyrite sulfur derived from overprinting hydrothermal
systems in the altered volcanic host rocks of the Toyoha–Muine area are dete...
Thermochemical reduction of magnesium sulfate by natural gas: Insights from an experimental study
natural gas thermochemical sulfate reduction (TSR) carbon isotope fractionation
2017/4/12
Thermochemical reduction of MgSO4 by natural gas was carried out in the presence of water. Chemical and carbon
isotopic variations were characterized with microcoulometry, gas chromatography, FT-IR, ...
Stable and noble gas isotopic study of thermal and groundwaters in northwestern Hokkaido, Japan and the occurrence of geopressured fluids
geopressured fluid hydrogen isotope oxygen isotope helium isotope Hokkaido
2017/8/9
Thermal and groundwaters are distributed along the west coast and in the inland region of Northwestern Hokkaido, Japan. The waters in the latter group have relatively high temperatures. Stable (D, O) ...
Mn- and Fe-carbonate rich layers in Meso-Cenozoic shales as proxies of environmental conditions: A case study from the southern Apennine, Italy
geochemistry manganese Northern-Calabrian Unit rhodochrosite southern Italy
2017/8/9
Mn-rich layers and interbedded shales from a well exposed natural section of the Northern-Calabrian Unit (Late Jurassic-Early Oligocene) in the surroundings of the Terranova del Pollino village, south...
A XAFS study on the mechanism of isotopic fractionation of molybdenum during its adsorption on ferromanganese oxides
molybdenum XAFS isotopic fractionation ferromanganese oxides paleoredox
2017/8/9
Due to its potential as a paleoredox proxy, there have been many studies on Mo isotopic fractionation during adsorption onto ferromanganese oxides in seawater. However, the mechanisms of both adsorpti...
Novel analytical approach to bivalve shell biogeochemistry: A case study of hydrothermal mussel shell
NanoSIMS bivalve shell minor and trace element microstructure microanalyses
2017/8/10
To study the mechanism of element incorporation into bivalve shells living in hydrothermal environments, the chemical composition of deep-sea mussel (Bathymodiolus platifrons) shell was analyzed using...