Results 21 to 30 of about 11,225 (291)

Identification of molybdenite in diamond-hosted sulphide inclusions: Implications for Re–Os radiometric dating [PDF]

open access: yesEarth and Planetary Science Letters, 2018
Sulphide inclusions are common features of natural diamonds. They can provide an insight into the nature of diamond-forming reactions and are especially important for Re–Os dating of diamond formation. A discrete molybdenite (MoS2) phase has been identified for the first time by Raman spectroscopy in 73 out of 80 syngenetic sulphide inclusions in 7 ...
Lotta I. Kemppinen   +5 more
openaire   +4 more sources

Molybdenite Re-Os dating of Mo-Th-Nb-REE rich marbles: pre-Variscan processes in Moldanubian Variegated Group (Czech Republic)

open access: yesGeologica Carpathica, 2015
In an effort to contribute to the discussion concerning the age of rocks of the Moldanubian Variegated Group, we have undertaken Re-Os dating of molybdenite of banded carbonatite-like marbles (CLM) from the graphite mine Václav at Bližná (Southern ...
Drábek Milan, Stein Holly
doaj   +2 more sources

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

open access: yes, 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

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

open access: yesNatl 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 chronology and REE analysis of paleo-oil reservoir in high evolution areas: a case study of Banjie paleo-oil reservoir, Nanpanjiang Basin

open access: yesShiyou shiyan dizhi, 2022
The traditional organic index can be greatly affected in the areas with high thermal evolution degree whilst combination of REE for oil-source correlation will improve the results.
Xiaolin TAN   +4 more
doaj   +1 more source

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

open access: yesJournal 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.
Yanming Sai   +5 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

open access: yesVestnik 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.   +2 more
doaj   +1 more source

Re-Os dating of the Raobazhai ultramafic massif in North Dabie

open access: yesChinese Science Bulletin, 2004
The ultramafic massif at Raobazhai in North Dabie is located in the suture zone between the Yangtze craton and North China craton. The Re-Os isotope compositions of the massif are used to decipher the origin and tectonics of the ultramafic rocks involved in continental subduction and exhumation.
Yongbin Jin   +4 more
openaire   +2 more sources

Radiometric dating of marine-influenced coal using Re–Os geochronology [PDF]

open access: yesEarth and Planetary Science Letters, 2015
Abstract Coal deposits are integral to understanding the structural evolution and thermal history of sedimentary basins and correlating contemporeous estuarine and fluvial delatic strata with marine sections. While marine shales may readily lend themselves to Re–Os dating due to the dominance of hydrogenous Re and Os, the lack of a chronometer for ...
Gyana Ranjan Tripathy   +4 more
openaire   +1 more source

Geochronology and geochemistry of the Shanagen hydrothermal vein-type Mo deposit in Derbugan metallogenic belt of the NE China and their geological significance

open access: yesFrontiers in Earth Science, 2023
The Shanagen hydrothermal vein-type Mo deposit belongs to the Derbugan metallogenic belt, which is located in the Ergun block, NE China. The Mo mineralization is mainly developed in sericitized quartz siltstone around alkali-feldspar granite.
Yunxia Wu   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy