File:Pottsville Group over Maxville Limestone (Black 17 Mine, White Cottage, Ohio, USA) 10 (43377733340).jpg
Original file (3,008 × 2,000 pixels, file size: 3.87 MB, MIME type: image/jpeg)
This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
DescriptionPottsville Group over Maxville Limestone (Black 17 Mine, White Cottage, Ohio, USA) 10 (43377733340).jpg |
The Maxville Limestone is the only Middle to Late Mississippian-aged stratigraphic unit in Ohio. Its outcrop belt is not extensive - it principally occurs in Muskingum County and Perry County in eastern and southeastern Ohio. The Maxville Formation can also be found as cobbles and pebbles in the basal Sharon Formation (Lower Pennsylvanian), which disconformably overlies Ohio's Mississippian rocks. Paleohills, or erosional outliers, of Maxville Limestone have also been identified. Shown here is an active underground limestone mine in Muskingum County. The mine targets Maxville Limestone and crushes it for use as road gravel, fill, rip-rap, and erosion-control blocks. Most limestone or dolostone mining operations are open-pit mines - quarries. This is an unusual example of subsurface quarrying - it started in 2010; this photo depicts the status of the site in September 2011. Available satellite imagery shows the area flooded from 2014 to the present. The dark-colored sedimentary rocks in the middle and upper parts of the section are the Pottsville Group, an upper Lower Pennsylvanian to lower Middle Pennsylvanian succession of marine and nonmarine rocks dominated by mixed siliciclastics. The Pottsville also includes fossiliferous limestones, coals, and chert/flint horizons. A series of adits are present in a light-colored unit at the base of the quarry's high wall. This is the Maxville Limestone. Only diesel engines were allowed underground. At the time of this visit, the underground limestone mining went back 800 to 900 feet. There are 40'x60'-sized rooms back there, forming a checkerboard pattern. Stratigraphy: lower Pottsville Group (upper Lower Pennsylvanian) over Maxville Limestone (Middle to Upper Mississippian) Locality: Black 17 Mine (owned by Sidwell Materials, Incorporated), south of Route 22, just east of the town of White Cottage, central Newton Township, southwestern Muskingum County, eastern Ohio, USA (39° 52' 21.35" North latitude, 82° 04' 38.38" West longitude) |
Date | |
Source | Pottsville Group over Maxville Limestone (Black 17 Mine, White Cottage, Ohio, USA) 10 |
Author | James St. John |
Licensing
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/43377733340 (archive). It was reviewed on 8 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
8 October 2019
Items portrayed in this file
depicts
some value
26 September 2011
0.01 second
62 millimetre
200
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 12:04, 8 October 2019 | 3,008 × 2,000 (3.87 MB) | Ser Amantio di Nicolao | Transferred from Flickr via #flickr2commons |
File usage
Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Camera manufacturer | NIKON CORPORATION |
---|---|
Camera model | NIKON D70s |
Exposure time | 1/100 sec (0.01) |
F-number | f/5 |
ISO speed rating | 200 |
Date and time of data generation | 14:51, 26 September 2011 |
Lens focal length | 62 mm |
Width | 3,008 px |
Height | 2,000 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop Elements 13.0 (Macintosh) |
File change date and time | 23:29, 6 October 2018 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 14:51, 26 September 2011 |
Meaning of each component |
|
Image compression mode | 4 |
Shutter speed | 6.643856 |
APEX aperture | 4.643856 |
Exposure bias | 0 |
Maximum land aperture | 4.5 APEX (f/4.76) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 93 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 200638ad |
Lens used | 18.0-200.0 mm f/3.5-5.6 |
Date metadata was last modified | 19:29, 6 October 2018 |
Unique ID of original document | 3C0A26647FAEA844175CA5CDDFB61E80 |