Re-Os Pyrite Dating

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Re-Os dating of pyrite confirms an early diagenetic onset . . .
Re-Os dating of pyrite from Giant Bayan Obo REE-Nb-Fe . . .
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Re-Os dating, and Pb-H-O isotope characteristics, of the . . .
Pyrite Re-Os isotope systematics at the Zijinshan deposit . . .
First Reliable Re-Os Ages of Pyrite and Stable Isotope . . .
Rhenium-osmium dating - Wikipedia
First Reliable Re-Os Ages of Pyrite and Stable Isotope . . .
INFLUENCE OF ORGANIC MATTER ON Re-Os DATING OF SULFIDES . . .
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Here we use Re-Os geochronology to show that ore-stage pyrite from the Lisheen deposit formed at 346 .6 ± 3 .0 Ma, shortly after host rock deposition . Pyrite from the Silvermines deposit returns an age of 334 .0 ± 6 .1 Ma, indicating that at least some mineralization occurred during later burial .
Six pyrite samples from the giant Bayan Obo REE-Nb-Fe deposit are dated by Re-Os technique . Pyrite studied is associated with barite and separated from a vein cutting REE mineralization . Pyrites analyzed contain 16-30 ng Re and 0 .10-0 .16 ng Os , and yield a Caledonian isochron age of 439 ±86 Ma . High Re/Os ratio, low Os concentration and highly radiogenic Os isotopic ratios of these . . .
Re-os dating pyrite . Nanjing, kiev dating of 429 29 ma, click here province: geochronological evidence of pyrite nodules associated . Bone is located in some deposits do not connected to determine the . Re-Os isotopic analysis opened a valuable tool for submarine volcanic rocks, anhui and zircon sensitive high-resolution ion microprobe u-pb dating of sedimentary rocks .
The pyrite separates for Re-Os isotopic dating are in close association with galena, chalcopyrite, and can represent the metallogenic stage (Fig . 5J, K) . The Re-Os isotope analysis was conducted in the Curtin University of Technology by Svetlana G Tessalina, Re and Os abundance and 187 Os / 188 Os ratios were measured by inductively coupled . . .
Many have shown that pyrite is the second-most reliable sulfide for Re-Os dating after molybdenite, and can yield robust Re-Os dates to constrain the timing of sulfide mineralization (e .g . Brenan et al ., 2000, Feng et al ., 2009, Huang et al ., 2014a, Huang et al ., 2014b, Lawley et al ., 2013, Morelli et al ., 2004, Selby et al ., 2009, Stein et al . . .
In this paper, we report the well-fitted Re-Os isoch-ron ages of pyrite from the Heifengshan, Shuangfeng-shan and Shaquanzi Fe(-Cu) deposits of the Aqishan- Yamansu belt, NW China . The new dataset indicates that these deposits formed at ~296 Ma and demon-strates that the Re-Os chronometer of pyrite can be a reliable tool to date . . .
Rhenium-osmium dating is a form of radiometric dating based on the beta decay of the isotope 187 Re to 187 Os .This normally occurs with a half-life of 41 .6 × 10 9 y, but studies using fully ionised 187 Re atoms have found that this can decrease to only 33 y . Both rhenium and osmium are strongly siderophilic (iron loving), while Re is also chalcophilic (sulfur loving) making it useful in . . .
All pyrite separates have very low common Os , allowing us calculation of single mineral model ages for each sample . Pyrite separates from the Heifengshan Fe deposit have an 187 Re - 187 Os isochron age of 310 ± 23 Ma (MSWD = 0 .04) and a weighted mean model age of 302 ± 5 Ma (MSWD = 0 .17) .
The Key Lab of Re-Os Isotope Geochemistry, China Geological Survey, Beijing 100037, China Corresponding authors: e-mail, song_yucai@aliyun .com , limit711@163 .com Search for other works by this author on:
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Re-Os Pyrite Dating