File:Hydrothermal veins in Butte Quartz Monzonite (Woodville Canyon, northeast of Butte, Montana, USA) 2.jpg
![File:Hydrothermal veins in Butte Quartz Monzonite (Woodville Canyon, northeast of Butte, Montana, USA) 2.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/e/ee/Hydrothermal_veins_in_Butte_Quartz_Monzonite_%28Woodville_Canyon%2C_northeast_of_Butte%2C_Montana%2C_USA%29_2.jpg/800px-Hydrothermal_veins_in_Butte_Quartz_Monzonite_%28Woodville_Canyon%2C_northeast_of_Butte%2C_Montana%2C_USA%29_2.jpg?20210226224205)
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Summary
editDescriptionHydrothermal veins in Butte Quartz Monzonite (Woodville Canyon, northeast of Butte, Montana, USA) 2.jpg |
English: Hydrothermal veins in quartz monzonite in the Cretaceous of Montana, USA.
This outcrop is in the Butte Quartz Monzonite (a.k.a. Butte Pluton), which is part of the Boulder Batholith. The Butte Quartz Monzonite ("BQM") formed 76.3 million years ago, during the mid-Campanian Stage in the Late Cretaceous. In the Butte, Montana area, BQM rocks have been intruded and altered by hydrothermal veins containing valuable metallic minerals - principally copper sulfides. The copper mineralization has been dated to 62-66 million years ago, during the latest Maastrichtian Stage (latest Cretaceous) and Danian Stage (Early Paleocene). In the supergene enrichment zone of the area, the original sulfide mineralogy has been altered. The rusty color of these veins is from iron oxide, produced by oxidative weathering of pyrite (mostly likely). Geologic unit: Butte Quartz Monzonite, Boulder Batholith, late Late Cretaceous, Campanian Stage, 76.3 Ma Locality: roadcut on the western side of Frontage Road in Woodville Canyon, just south of Elk Park Pass, northeast of the town of Butte, Silver Bow County, southwestern Montana, USA |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/50978582172/ |
Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/50978582172. It was reviewed on 26 February 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
26 February 2021
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current | 22:42, 26 February 2021 | ![]() | 3,648 × 2,736 (7.01 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/50978582172/ with UploadWizard |
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Camera manufacturer | EASTMAN KODAK COMPANY |
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Camera model | KODAK EASYSHARE Z1012 IS Digital Camera |
Exposure time | 1/800 sec (0.00125) |
F-number | f/3.2 |
ISO speed rating | 64 |
Date and time of data generation | 11:49, 12 August 2010 |
Lens focal length | 14.6 mm |
Width | 3,648 px |
Height | 2,736 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 480 dpi |
Vertical resolution | 480 dpi |
Software used | Adobe Photoshop Elements 18.0 (Macintosh) |
File change date and time | 01:49, 25 February 2021 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 11:49, 12 August 2010 |
Meaning of each component |
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APEX shutter speed | 9.6666666666667 |
APEX aperture | 3.4 |
APEX brightness | 1 |
APEX exposure bias | 0 |
Maximum land aperture | 3.4 APEX (f/3.25) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, auto mode |
DateTimeOriginal subseconds | 81 |
Supported Flashpix version | 1 |
Color space | sRGB |
Exposure index | 64 |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Custom process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 74 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Date metadata was last modified | 20:49, 24 February 2021 |
Unique ID of original document | 7B5D70B52C3CC78ACB0B9A1977B36D6C |
IIM version | 53,248 |