Results 21 to 30 of about 7,803,272 (294)

Study on the Causes for ICP-MS Signal Intensity Declination of Os Water Absorption Liquid

Yankuang ceshi, 2018
BACKGROUND Os can be separated from the sample matrix by distillation, and the absorbing liquid can be introduced into ICP-MS directly, which is a key step of the molybdenite Re-Os isotopic age analysis.
ZHOU Li-min, LI Chao, LI Xin-wei, ZHAO Hong, QU Wen-jun, DU An-dao   +5 more
doaj   +1 more source

Recent progress on the research of Re–Os geochronology and Re–Os elemental and isotopic systematics in petroleum systems

Journal of Natural Gas Geoscience, 2020
Re–Os geochronometer has been used in the dating of generation-accumulation, thermal cracking, and thermochemical sulfate reduction of crude oil and the oil-source correlation of petroleum systems in recent years. Re and Os concentrations are higher in the asphaltene fraction of crude oil and the earlier precipitated fractions of asphaltene.
Yanming Sai, Keyu Jin, Mingzhuang Luo, Hui Tian, Jie Li, Junjie Liu   +5 more
openaire   +2 more sources

Study on the Re-Os Isotope Composition of Graphite from the Lutang Graphite Deposit in Hunan Province

Yankuang ceshi, 2017
Graphite has relatively high Re and Os contents and is an ideal mineral for Re-Os isotope dating. However, there are few studies on Re-Os dating of graphite.
LI Chao, WANG Deng-hong, ZHOU Li-min, ZHAO Hong, LI Xin-wei, QU Wen-jun   +5 more
doaj   +1 more source

Accurate Determination of the Age of the Carbonaceous Mudstone of the Ordovician-Silurian Boundary in Zheng'an County, Guizhou Province by Re-Os Isotope Dating Method and Its Application in Paleoenvironmental Inversion

Yankuang ceshi, 2020
BACKGROUND Organic-rich sedimentary rocks of the Wufeng-Longmaxi Formation are widely developed in the Ordovician-Silurian boundary of the Upper Yangtze platform in China, which is rich in shale gas resources. Using the Re-Os isotope system to study this
LI Xin-wei, LI Chao, ZHOU Li-min, ZHAO Hong   +3 more
doaj   +1 more source

The Age and Sedimentary Environment of the Kunyang Phosphate Deposit, Central Yunnan: Constraints from Re-Os Isotopes

Yankuang ceshi, 2018
BACKGROUND The Kunyang phosphate deposit in central Yunnan is the largest marine sedimentary phosphorite deposit in China. The deposit is hosted in black shale of the Lower Cambrian Meishucun Formation.
YAN Qing-gao, LI Chao, JIANG Xiao-jun, WANG Zhong-qiang, LI Yun-ju, LI Wei   +5 more
doaj   +1 more source

Re-Os Isotopes in the Horoman Peridotite: Evidence for Refertilization? [PDF]

Journal of Petrology, 2001
1992, 1994, 1996, 1999, 2000; Takazawa, 1996). The the peridotites are increasingly depleted in a basalticmain objectives of this Re–Os study are to determine component. The boundary between the compositionalthe origin of the plagioclase lherzolites (do they represent layers is sharp on a megascopic scale, but transitionalunmelted fertile peridotite or
openaire   +1 more source

Re-Os isotope geochemistry of three Chinese chondrites

Chinese Science Bulletin, 2007
Three Chinese ordinary chondrites, including Jilin (H5), Boxian (LL3.8) and Lujiang (LL6), have been studied for their Re and Os abundances and Os isotopic composition in whole-chondrite samples, separated magnetic and nonmagnetic fractions, and nodules. The results indicate that the Re and Os abundances of the whole-chondrite samples are in the ranges
XiaChen Zhi, Xie Qin, RenDeng Shi, JiAn Hong   +3 more
openaire   +1 more source

Research Progress on Re-Os Isotopes Application in Dating and Paleoenvironmental Interpretation during the Neoproterozoic to Early Cambrian Periods

Yankuang ceshi, 2016
The Neoproterozoic to Early Cambrian period is a very important era in the history of earth evolution. Research on stratigraphic framework, paleo-oceanography, palaro-atmospheric, and paleoclimatology are focuses of international geosciences.
WANG Fu-liang, FU Yong, JIANG Ran, ZHOU Wen-xi, GE Zhi-hua, WEI Shuai-chao, LIANG Hou-peng, ZHANG Peng   +7 more
doaj   +1 more source

Comparison of isotope data obtained with Sm-Nd and Re-Os methods for minerals and rocks from the Ozernoe ore occurrence, Salla-Kuolajarvi belt

Vestnik MGTU, 2021
Sm-Nd isochrone, drawn for rock-forming and sulfide minerals from the Ozernoe ore occurrence, indicates albitite age of 1,759 ± 11 Ma. It shows synchronous formation of albitite and sulfide mineralization, and fully corresponds to the earlier defined age
Kalinin A. A. , Kaulina T. V. , Serov P. A.   +2 more
doaj   +1 more source

The age of mineralization of Mayskoe gold ore deposit (Central Chukotka): results of Re-Os isotopic dating

Записки Горного института, 2020
The article presents the results of the sulfide mineralization dating of the Mayskoe gold ore deposit using the Re-Os isotope system and isochron age estimation method of the main sulfide minerals: arsenopyrite, pyrite, and antimonite.
Dmitry S. Artemiev, Robert Sh. Krymsky, Boris V. Belyatsky, Dmitry S. Ashikhmin   +3 more
doaj   +1 more source