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Showing 1 to 3 of 3 for “"Re-Os Dating"”.
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Re-Os dating of algal laminites : reduction-enrichment of metals in the sedimentary environment and evidence for new geoporphyrins
… substrates for the application of the Re-Os chronometer. Devonian Keg River algal laminites produced an isochron date (382.2 ± 6.9 Ma) consistent with the expected age of about 388 Ma, and showed a lower degree of sample scatter than comparable dating studies of black shales. Ordovician …
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Geologic History and the Timing of Mineralization at the Haile Gold Mine
<p>New Re-Os measurements from molybdenite from three samples of mineralized drill core at the Haile Gold Mine, SC have yielded ages of 548.7 ± 4.2, 549.0 ± 3.1, 548.4 ± 2.4 and 541.2 ± 2.3. These combined ages suggest molybdenite formation at Haile occurred between approximately 540 and 552 Ma. …
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Metallogenesis of Cu deposits in Upper Palaeozoic sedimentary rocks, southern Ireland
Copper has been exploited in SW Ireland for thousands of years. The increased demand for copper world-wide has led to renewed interest in these occurrences and their overall implication for copper metallogenesis in Ireland. This PhD research study focuses on historically mined, mainly vein-hosted …