File:Bioclastic dolostone (upper Boggs Limestone, middle Pottsville Group, lower Middle Pennsylvanian; subcrop in Symmes Creek, northern Muskingum County, eastern Ohio, USA) (15559986287).jpg
Original file (2,372 × 2,200 pixels, file size: 1.59 MB, MIME type: image/jpeg)
Captions
Summary
editDescriptionBioclastic dolostone (upper Boggs Limestone, middle Pottsville Group, lower Middle Pennsylvanian; subcrop in Symmes Creek, northern Muskingum County, eastern Ohio, USA) (15559986287).jpg |
Bioclastic dolostone from the Pennsylvanian of eastern Ohio, USA. (4.9 cm across at its widest) The Pottsville Group is a Pennsylvanian-aged cyclothemic succession in eastern Ohio that contains nonmarine shales, marine shales, siltstones, sandstones, coals, marine limestones, and chert ("flint"). The lower Pottsville dates to the late Early Pennsylvanian. The upper part dates to the early Middle Pennsylvanian. The Lower-Middle Pennsylvanian boundary is apparently somewhere near the Boggs Member (?). The Boggs Member is a relatively thin stratigraphic interval. It typically consists of marine fossiliferous limestones, dominated by brachiopods and crinoid ossicles. Significant lateral lithologic variation is present - Boggs lithologies range from fossiliferous limestone to intraclastic limestone to ferruginous chert to "flint" to dolostone. In places, it has a relatively high component of disseminated pyrite. In other places, it is relatively rich in black manganese oxide(s). Minerals observed in the Boggs Limestone interval: calcite, dolomite, glauconite, goethite, gypsum, limonite, pyrite, sphalerite, turgite, vivianite, wad. This sample is from the upper part of the Boggs Limestone bed. It's a bioclastic dolostone (dolomitized bioclastic limestone) with disseminated pyrite, plus calcite and very minor glauconite. An apparent goethite-limonite-dominated surficial ironstone crust is present on the right portions of this sample. Stratigraphy: upper Boggs Limestone, middle Pottsville Group, lower Atokan Stage, lower Middle Pennsylvanian Locality: subaqueous outcrop in Symmes Creek, just east of Mollies Rock Road bridge (County Highway 40 bridge) & just east of the confluence with the North Branch of Symmes Creek, ~1.1 miles northeast of the Muskingum River, ~4 miles southeast of the town of Dresden, south-central Madison Township, northern Muskingum County, eastern Ohio, USA (40° 04.992’ North, 81° 57.186’ West) |
Date | |
Source | Bioclastic dolostone (upper Boggs Limestone, middle Pottsville Group, lower Middle Pennsylvanian; subcrop in Symmes Creek, northern Muskingum County, eastern Ohio, USA) |
Author | James St. John |
Licensing
edit- 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@N05/15559986287. It was reviewed on 24 June 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
24 June 2017
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 17:15, 24 June 2017 | 2,372 × 2,200 (1.59 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via Flickr2Commons |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
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.
Camera manufacturer | Canon |
---|---|
Camera model | Canon PowerShot D10 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/10 |
ISO speed rating | 80 |
Date and time of data generation | 00:23, 9 November 2014 |
Lens focal length | 9.681 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 01:27, 9 November 2014 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 00:23, 9 November 2014 |
Meaning of each component |
|
Image compression mode | 3 |
APEX shutter speed | 5.90625 |
APEX aperture | 6.65625 |
APEX exposure bias | −0.66666666666667 |
Maximum land aperture | 3.625 APEX (f/3.51) |
Metering mode | Pattern |
Flash | Flash fired, compulsory flash firing, red-eye reduction mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,460.905349794 |
Focal plane Y resolution | 16,483.516483516 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Portrait |
Supported Flashpix version | 1 |
Image width | 2,372 px |
Image height | 2,200 px |
Date metadata was last modified | 20:27, 8 November 2014 |
IIM version | 2 |