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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...
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...
Chemical and isotopic composition of fumarolic gases at Iwate volcano, Japan, during and after seismic activity in 1998: implications for the modification of ascending volcanic gases
Volcanoes volcanic earthquakes expectations and volcanic gases seismic activity the concentration of hydrochloric acid
2015/8/27
In 1998, there were many volcanic earthquakes recorded at Iwate volcano, Japan. Although an eruption was anticipated, it never occurred. Fumarolic gases were sampled at the volcano on six occasions du...
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...
Geochemistry and chemostratigraphy of the Colón-Mito Juan units (Campanian–Maastrichtian), Venezuela: Implications for provenance, depositional conditions, and stratigraphic subdivision
geochemistry chemostratigraphy Colón-Mito Juan sequence stratigraphic subdivision Lake Maracaibo
2017/4/11
A geochemical and chemostratigraphical study was undertaken on Campanian–Maastrichtian sedimentary rocks (the
Colón-Mito Juan sequence and the upper La Luna Formation) in the southwestern Maracaibo B...
Geochemical signature of aquitard pore water and its paleo-environment implications in Caofeidian Harbor, China
pore water aquitard origin geochemistry China
2017/4/11
Oxygen-18 (18O), deuterium (D), and chemical patterns were determined in pore water samples extracted from 100-m
depth in Caofeidian Harbor, China. The stable isotopic composition indicates that aqui...
Elemental and Sr–Nd isotopic compositions of Cenozoic sedimentary rocks from the Dongying Sag of Jiyang depression, North China: Implications for provenance evolution
provenance Dongying Sag Jiyang depression
2017/4/12
Major, trace element and Sr–Nd isotopic compositions of Cenozoic sedimentary rocks from the Dongying Sag and the
Zhanhua Sag, Jiyang Depression, provide evidence for provenance evolution and paleogeo...
Three global carbon isotope shifts in the Silurian of Podolia (Ukraine):stratigraphical implications
carbon isotopes correlation Podolia Silurian stratigraphy Ukraine
2009/10/21
Podolia is a classical Silurian area in the southwestern part of the Ukraine. Shallow to open shelf rocks cropping out there are usually, except for a few dolomitic horizons, highly fossiliferous and ...
Tube ultrastructure of Pomatoceros americanus(Polychaeta,Serpulidae):implications for the tube formation of serpulids
Serpulidae biomineralization tube ultrastructure tube formation
2009/10/21
The inner tube layer of Pomatoceros americanus has a complex oriented ultrastructure, which cannot be explained by the standard granular secretion model, predicting a largely unoriented structure of t...
Grain size effect on Sr and Nd isotopic compositions in eolian dust: Implications for tracing dust provenance and Nd model age
eolian dust Sr and Nd isotope Nd model age grain size effect isotopic tracing
2017/8/9
Strontium (Sr) and neodymium (Nd) isotopic compositions enable identification of dust sources and reconstruction of atmospheric dispersal pathways. The Sr and Nd isotopic compositions in eolian dust c...
Tectonic Implications of Some Cretaceous Pillow Basalts from the North Anatolian Ophiolitic Mélange(Central Anatolia-Turkey) to the Evolution of Neotethys
Seamount Geochemistry Callovian-Hauterivian Interval Tethys Ankara Mélange
2009/7/8
The most widespread blocks within the North Anatolian ophiolitic mélange of central Anatolia (Turkey) are ophiolitic fragments, Jurassic-Cretaceous carbonate blocks and pillow basalts. The blocks of ...
Elemental and Sr-Nd-Pb isotopic compositions of late Cenozoic Abaga basalts, Inner Mongolia: Implications for petrogenesis and mantle process
geochronology geochemistry Abaga basalts late Cenozoic Inner Mongolia
2017/8/10
The Abaga volcanic field is one of the largest and least known areas of late Cenozoic intraplate igneous activities in eastern China. Twenty-seven Abaga basaltic rocks were analyzed for major and trac...
Closed-system programmed-temperature pyrolysis on n-octadecane: Implications for the conversion of oil to gas
n-octadecane pyrolysis experiment gaseous hydrocarbon stable carbon isotope kinetic
2017/8/10
The aim of this work is to determine the molecular and stable carbon isotope compositions of pyrolysates from normal octadecane and, then, to study methane generation kinetic and carbon isotope fracti...
Sr-Nd isotopic characteristics of eolian deposits in the Erdos Desert and Chinese Loess Plateau: Implications for their provenances
Erdos desert Chinese Loess Plateau material source eolian deposits Sr-Nd isotope
2017/8/10
Material sources of the northern deserts and the Loess Plateau in China are always one of the critical focuses in Quaternary and paleoclimate fields. In this paper, the method of Sr-Nd isotope geochem...