Results 11 to 20 of about 7,773,615 (174)

Protogenetic sulfide inclusions in diamonds date the diamond formation event using Re-Os isotopes [PDF]

Geology, 2021
Sulfides are the most abundant inclusions in diamonds and a key tool for dating diamond formation via Re-Os isotopic analyses. The manner in which fluids invade the continental lithospheric mantle and the time scale at which they equilibrate with preexisting (protogenetic) sulfides are poorly understood yet essential factors to understanding diamond ...
Pamato, M. G., Novella, D., Jacob, D. E., Oliveira, B., Pearson, D. G., Greene, S., Afonso, J. C., Favero, M., Stachel, T., Alvaro, M., Nestola, F.   +10 more
core   +6 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   +2 more sources

Re-Os isotope system in organic-rich samples for dating and tracing: Methodology, principle, and application

Earth-Science Reviews, 2023
In the last three decades, significant progress has been made in the investigation of rhenium-osmium (Re-Os) isotopic system in organic-rich samples. The Re-Os geochronometer can provide precise absolute depositional ages of organic-rich sediments (ORS ...
Lu Yin, Peipei Zhao, Junjie Liu, Jie Li
openaire   +2 more sources

Molybdenite Re-Os Isotopic Dating of Xitian Deposit in Hunan Province and Its Geological Significance

Yankuang ceshi, 2014
The Xitian large-scale W-Sn polymetallic ore field has been explored in recent years. It is found in jointed adjoining areas of the Nanling and Qinhang metallogenic belts which are located on the boundary between Hunan and Jiangxi provinces, and the ...
GUO Chun-li, LI Chao, WU Shi-chong, XU Yi-ming   +3 more
doaj   +3 more sources

Re-Os Isotope Dating of Molybdenite from the Shapoling Mo Deposit, East Qinling and Its Implication for Identification of Late Jurassic Mo Mineralization

Yankuang ceshi, 2017
The Shapoling Mo deposit is located in the Xiong'er rock mass of the southern margin of the North China Craton. The deposit is hosted in a contact zone between granite and wallrocks of the Taihua Soupergroup, which is a recently found discovered vein ...
YUE Su-wei, DENG Xiao-hua, YAO Jun-ming, SUN Ya-li   +3 more
doaj   +2 more sources

Re-Os Isotopic Dating of Arsenopyrite from Auriferous Quartz Vein-type Gold Deposits in the Southwestern Margin of Jiangnan Orogen

Yankuang ceshi, 2016
Quartz vein-type gold deposits of Southeastern Guizhou Province in the southwestern margin of Jiangnan Orogen, which are typical orogenic gold deposits, are hosted in Neoproterozoic Banxi Group sub-greenschist facies metamorphic rocks.
GU Shang-yi, DU Ding-quan, FU Yong, SUN Shi-jun, LI Chao   +4 more
doaj   +2 more sources

Dating of hydrocarbons with Re-Os isotopes: Experimental investigation of the behavior of Re-Os in petroleum

, 2013
Le géochronomètre Re-Os a fait ses preuves dans son application aux huiles et bitumes pétroliers. Cependant, l’application de ce système sur les fluides pétroliers souffre d’un manque de compréhension de la géochimie pétrolière de Re et Os, des mécanismes de remise à zéro du géochronomètre et par conséquent des évènements réellement datés.
Mahdaoui, Fatima
openaire   +2 more sources

Dating post-Archean lithospheric mantle: Insights from Re-Os and Lu-Hf isotopic systematics of the Cameroon Volcanic Line peridotites

Geochimica et Cosmochimica Acta, 2020
Abstract Highly depleted Archean peridotites have proven very amenable to Re-Os model age dating. In contrast, due to the increasing heterogeneity of mantle Os isotope compositions with time, the Re-Os system has not been as effective in dating post-Archean peridotites.
Liu, Jingao, Pearson, D. Graham, Shu, Qiao, Sigurdsson, Haraldur, Thomassot, Emilie, Alard, Olivier   +5 more
openaire   +4 more sources

Re-Os geochronology for sulfides and organic-rich sediments. [PDF]

Natl Sci Rev
Rhenium and osmium are both siderophilic and chalcophilic, exhibiting a strong affinity for organic-rich materials. This makes the Re-Os chronometer a valuable complement to geochronometers based on lithophile elements.
Li Y, Glorie S, Selby D.
europepmc   +2 more sources

Re‐Os isotope systematics in carbonates from Serpent Mound, Ohio: Implications for Re‐Os dating of crustal rocks and the osmium isotopic composition of Ordovician seawater [PDF]

Geochemistry, Geophysics, Geosystems, 2004
Eleven core samples of Ordovician carbonates and shale from within and nearby the Serpent Mound (Ohio) cryptoexplosion structure were analyzed for Re‐Os isotopes. Whole‐rock samples span a large range in measured 187Os/188Os (0.714 to 6.083), and exhibit a linear correlation of 187Os/188Os with 187Re/188Os.
Elisabeth Widom, Sarah J. Gaddis, Norman E. Wells   +2 more
openaire   +1 more source