File:Molybdenum ore, Climax CO.jpg
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[edit]DescriptionMolybdenum ore, Climax CO.jpg |
Climax Mine molybdenum ore (5.3 cm across at its base) - molybdenite-quartz veins in alkaline granite from the Climax Mine, Lake County, central Colorado, USA. Dark silvery gray = molybdenite (MoS2). Medium gray = quartz Light colored areas = alkaline granite Central Colorado’s Climax Mine is the largest molybdenum mine on Earth. It's located in the Southern Rocky Mountains, near the northern end of the Rio Grande Rift, a large, Neogene-aged rift valley on the eastern side of the Colorado Plateau. Molybdenum (Mo - “moly”) mineralization at the Climax Mine occurred as a series of igneous bodies intruded through Proterozoic basement rocks (gneisses and granites). Seven intrusive bodies make up the composite Climax Stock (Oligocene, 24-33 m.y.). Three of them produced significant moly mineralization in the form of molybdenite-quartz veins and disseminated molybdenite (MoS2 - molybdenum sulfide). The rocks of the Climax Stock are alkaline felsic intrusives. They range from porphyritic alkaline rhyolites to alkaline aplites to porphyritic alkaline granites. In map view, the igneous bodies of the Climax Stock form a roughly circular structure. In cross-section view, each intrusion has an inverted bowl shape. Published studies on the origin of the Climax Molybdenum Deposit and other Climax-type moly deposits have concluded that they form principally in incipient extensional tectonic settings well inland from shallow-angle subduction zones that have recently ceased. |
Date | |
Source | Molybdenum ore (molybdenite-quartz veins in host rock, Oligocene, 24-33 Ma; Climax Mine, Fremont Pass, central Colorado, USA) |
Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15274330712. It was reviewed on 21 September 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
21 September 2014
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current | 16:41, 21 September 2014 | ![]() | 3,979 × 2,892 (3.57 MB) | Tillman (talk | contribs) | Transferred from Flickr via Flickr2commons |
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Horizontal resolution | 1,600 dpi |
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Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 00:33, 18 September 2014 |
Color space | Uncalibrated |
Image width | 3,979 px |
Image height | 2,892 px |
Date and time of digitizing | 20:31, 17 September 2014 |
Date metadata was last modified | 20:33, 17 September 2014 |