Results 31 to 40 of about 11,607 (279)

Geochronological Constraint on the Evolution of the Aktyuz Terrane, Kyrgyz North Tianshan, and the Fate of the Taldybulak Levoberezhny Gold Deposit

Frontiers in Earth Science, 2021
The Aktyuz Terrane in Kyrgyz North Tianshan is of particular interest due to the occurrence of high and ultrahigh pressure (HP–UHP) rocks and it containing the third largest gold deposit in Kyrgyz North Tianshan, i.e., Taldybulak Levoberezhny ...
Wei Xi, Wei Xi, Wei Xi, Nuo Li, Nuo Li, Xiaohong Xia, Xiaohong Xia, Xiaoxiao Ling, Yanshuang Wu, Yanshuang Wu   +9 more
doaj   +1 more source

Re-Os Isotopic Age of Molybdenite from the Xiaobaishi W-(Mo) Deposit, Eastern Tianshan, Xinjiang and Its Geological Implication

Yankuang ceshi, 2019
BACKGROUND The Xiaobaishitou W-(Mo) deposit is located in the Central Tianshan Massif of the Eastern Tianshan, Northwestern China. The deposit is a skarn-type tungsten-molybdenum deposit formed by biotite granite and granodiorite intruding into the ...
LI Ning, YANG Fu-quan, LI Chao, ZHANG Zhi-xin, YANG Cheng-dong   +4 more
doaj   +1 more source

Genesis of the Shibaogou Mo–Pb–Zn deposit in the Luanchuan ore district, China: Constraints from geochronology, fluid inclusion, and H–O–S–Pb isotopes

Frontiers in Earth Science, 2023
The Shibaogou deposit is located in the Luanchuan ore district within the East Qinling orogenic belt (EQOB), central China, which is a newly discovered Mo–Pb–Zn skarn deposit.
Yunchou Xu, Gongwen Wang, Gongwen Wang, Gongwen Wang, Meng Gao, Wangdong Yang, Shuren Yang, Hui Yun, Peijian Wu, Nana Guo, Yantao Feng   +10 more
doaj   +1 more source

Heterogeneous Os isotope compositions in the Kalatongke sulfide deposit, NW China: the role of crustal contamination [PDF]

, 2012
Re-Os isotope compositions of mantle-derived magmas are highly sensitive to crustal contamination because the crust and mantle have very different Os isotope compositions.
Gao, JF, Lightfoot, PC, Qu, W, Zhou, MF
core   +1 more source

Cosmic radioactivities [PDF]

, 1999
Radionuclides with half-lives ranging from some years to billions of years presumably synthesized outside of the solar system are now recorded in ``live'' or ``fossil'' form in various types of materials, like meteorites or the galactic cosmic rays. They
Arnould, Marcel, Prantzos, Nikos
core   +3 more sources

Generation Time and Accumulation of Lower Paleozoic Petroleum in Sichuan and Tarim Basins Determined by Re–Os Isotopic Dating

Processes, 2023
With the targets of petroleum exploration transferred to the deep and ancient strata, abundant oil and gas resources have been found in Lower Paleozoic and older strata in central and western China. Due to complex evolutionary processes including multiple episodes of hydrocarbon accumulation and ubiquitously accompanied by secondary alterations ...
Jie Wang, Liangbang Ma, Cheng Tao, Wenhui Liu, Qingwei Dong   +4 more
openaire   +1 more source

Overview on the Re-Os isotopic method and its application on ore deposits and organic-rich rocks [PDF]

Geochimica Brasiliensis, 2013
The Re-Os method has in the last twenty years experienced outstanding improvements and is now widely applied in earth science studies. The unique geochemical characteristics of the isotopic pair allow its application on investigations that vary from ...
Juliana Charão Marques
doaj  

Geochronology (Re–Os and U–Pb) and fluid inclusion studies of molybdenite mineralisation associated with the Shap, Skiddaw and Weardale granites, UK [PDF]

, 2008
Late Devonian magmatism in Northern England records key events associated with the Acadian phase of the Caledonian-Appalachian Orogen (C-AO). Zircon U-Pb and molybdenite Re-Os geochronology date emplacement and mineralisation in the Shap (405·2±1·8 Ma ...
Conliffe, J., Crowley, Q.G., Feely, M., Selby, D.   +3 more
core   +1 more source

Origin and Geochronology of Chang'anpu Mo-Cu Deposit in Jilin Province: Constraints from Molybdenite Re-Os Isotope Systematics

Yankuang ceshi, 2016
The east-central part of Jilin Province, located on the continental margin of northeast China along the eastern Xing-Meng orogenic belt, hosts more than 10 large-and medium-scale Mo deposits. The major types of mineralization include porphyry, skarn, and
SONG Quan-heng, XING Shu-wen, ZHANG Yong, LI Chao, WANG Yan, YU Cheng   +5 more
doaj   +1 more source

alpha :a constant that is not a constant? [PDF]

, 2002
We review the observational information on the constancy of the fine structure constant alpha. We find that small improvements on the measurement of ^{187}Re lifetime can provide significant progress in exploring the range of variability suggested by QSO
Fiorentini, G., Ricci, B.
core   +2 more sources