Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 4 of 4 for “"Re-Os Dating"”.
-
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 …
-
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. …
-
Geology of the Archean Côté Gold Au(-Cu) intrusion-related deposit, Swayze Greenstone Belt, Ontario
The Côté Gold Au(-Cu) deposit is a low-grade, large-tonnage type deposit with an indicated resource of 269 Mt averaging 0.88 g/t Au (7.61 M oz) and an inferred resource of 44 Mt averaging 0.74 g/t Au (1.04 M oz) at a cut-off grade of 0.3 g/t Au. The deposit is located in the Swayze greenstone belt …
-
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 …