File:Quartz-calcite-dolomite vein in New Albany Shale (Upper Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, USA) 1.jpg
Original file (1,170 × 960 pixels, file size: 1.36 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionQuartz-calcite-dolomite vein in New Albany Shale (Upper Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, USA) 1.jpg |
English: Vein in weathered shales in the Devonian of Kentucky, USA.
These are weathered shales in the New Albany Shale, a Devonian-aged formation in Kentucky, Indiana, Illinois, and eastern Missouri. The unit is dominated by dark-colored marine mudshales of Late Devonian age. These black shales were deposited in a moderately deep, anoxic seafloor environment. This was a widespread lithofacies during the Late Devonian's Global Anoxia Event. The New Albany Shale is equivalent to the Ohio Shale, the Antrim Shale, and the Chattanooga Shale in surrounding states. The New Albany Shale's member terminology varies from region to region. In southern Indiana and adjacent areas of Kentucky, the New Albany consists of (from the base upward): Blocher Member, Selmier Member, Morgan Trail Member, Camp Run Member, and Clegg Creek Member. The wall seen here has an obvious, vertically-oriented vein cross-cutting the shales. The vein intruded when the surrounding shales were semi-solidified. Vein fills are squished, contorted, and telescoped vertically - the vein compacted when the shales had not completed compaction themselves. It's estimated that the vein compacted when the shales had 20 to 30% porosity, at about ~500 meters burial depth. Vein fill materials include quartz (SiO2), calcite (CaCO3), dolomite (CaMg(CO3)2) and a trace of bitumen. Vein intrusion is related to large-scale fluid migration from basins to high areas (regional arches). The vein's host rocks are the upper Camp Run Member and the Clegg Creek Member. Stratigraphy: upper New Albany Shale, Famennian Stage, upper Upper Devonian Locality: roadcut along the western side of the south-bound entrance ramp to Interstate 65 at the Route 245-Interstate 65 interchange, north-northeast of Belmont & south of Sherpherdsville, south-central Bullitt County, north-central Kentucky, USA (37° 55' 24.45" North latitude, 85° 41' 18.33" West longitude) |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/52874425963/ |
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@N05/52874425963. It was reviewed on 9 May 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
9 May 2023
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:01, 9 May 2023 | 1,170 × 960 (1.36 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/52874425963/ with UploadWizard |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
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Camera manufacturer | OLYMPUS OPTICAL CO.,LTD |
Camera model | C900Z,D400Z |
Exposure time | 1/532 sec (0.0018796992481203) |
F-number | f/3.5 |
ISO speed rating | 100 |
Date and time of data generation | 20:45, 24 September 2004 |
Lens focal length | 8.2 mm |
Width | 1,280 px |
Height | 960 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop Elements 20.0 (Macintosh) |
File change date and time | 06:35, 2 May 2023 |
Y and C positioning | Co-sited |
Exif version | 2.1 |
Date and time of digitizing | 20:45, 24 September 2004 |
Meaning of each component |
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Image compression mode | 2 |
APEX shutter speed | 9.049849 |
APEX aperture | 3.61471 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Date metadata was last modified | 02:35, 2 May 2023 |
Unique ID of original document | 1A74729FE2F9609411D29AAC3377C5A2 |