Results 21 to 30 of about 1,197 (262)

A freshwater diet-derived 14C reservoir effect at the Stone Age sites in the Iron Gates gorge [PDF]

open access: yes, 2001
Human bones from single inhumation burials and artifacts made from terrestrial mammal (ungulate) bone found in direct association with the skeletons were obtained from the Stone Age site of Schela Cladovei situated just below the Iron Gates Gorge of the ...
McSweeney, Kathleen   +11 more
core   +1 more source

Re-Os Isotope Characteristics of the Huize Ultra-large Lead-Zinc Deposit, Northeastern Yunnan Province: Constraints on the Himalayan Metallogenic Dynamic Background

open access: yesYankuang ceshi, 2018
BACKGROUND The Huize ultra-large lead-zinc deposit is a typical MVT or HZT type deposit in the lead-zinc polymetallic belt. This deposit is known as a unique metallogenic system and germanium enrichment. Due to the low mineralization temperature and lack
JIANG Xiao-jun   +6 more
doaj   +1 more source

Re-Os isotope system of sulfide from the Fule carbonate-hosted Pb-Zn deposit, SW China: Implications for Re-Os dating of Pb-Zn mineralization

open access: yesOre Geology Reviews, 2020
Abstract The Fule deposit is one of the carbonate-hosted Pb-Zn deposits in southeastern part of the Sichuan-Yunnan-Guizhou (SYG) metallogenic province, SW China. This deposit is hosted by dolomitic limestone and dolomite of the Yangxin Formation with Zn-Pb ore reserves of more than 20 million tons (Mt).
Chuan Lyu   +3 more
openaire   +1 more source

A Rapid Method to Determine the Re-Os Age and Re Content of Molybdenite by Inductively Coupled Plasma-Mass Spectrometry

open access: yesYankuang ceshi, 2016
Re-Os isotope method is a powerful tool for dating ore deposits, but digesting samples with the Carius tube is complicated and dangerous.A simple and quick method to determine the age of molybdenite Re-Os and Re content has been established.5-15 mg of ...
YANG Xue   +5 more
doaj   +1 more source

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

open access: yesYankuang 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   +5 more
doaj   +1 more source

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

open access: yesProcesses, 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   +4 more
openaire   +1 more source

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

open access: yes, 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.
Zhou, MF   +7 more
core   +1 more source

Evaluation of Re–Os geochronology and Os isotope fingerprinting of Late Cretaceous terrestrial oils in Taranaki Basin, New Zealand [PDF]

open access: yes, 2023
The rhenium-osmium (Re–Os) isotope system has been applied to several marine and lacustrine petroleum systems worldwide, showing good potential for dating crude oils and correlating them to their source rocks.
Kroeger, Karsten F.   +5 more
core   +1 more source

Ore mineralization of gold-uranium occurrences Ozernoe and Lagernoe (Kuolayarvi structure, North Karelia)

open access: yesVestnik MGTU, 2019
Alkaline-carbonate metasomatites of fault zones are widely distributed within all Precambrian shields. Their studying has attracted the close attention of researchers in connection with the confinement of various concentrations of ore-forming elements ...
Koval A. V.   +2 more
doaj   +1 more source

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

open access: yesYankuang 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   +5 more
doaj   +1 more source

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