| Identifier | 2018-301-DD | ||||||||
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| Data provider | USGS core archive - Reich and others, 2009; http://olga.er.usgs.gov/coreviewer/ | ||||||||
| Location | Florida Keys | ||||||||
| Summary | Compiled all available data on the 70 core records that recovered Holocene reef framework, including radiometric ages (radiocarbon and U-series) and metadata on the cores and collection sites. We also produced high-resolution core photographs and descriptive core logs of each of the cores. | ||||||||
| Info derived | Data were obtained in order to develop a comprehensive reconstruction of the development of the coral reefs of the Florida Keys reef tract during the Holocene. The data were used to reconstruct Holocene reef thickness, rates of reef accretion, and the timing of reef senescence. | ||||||||
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| Organization |
600 Fourth Street South
St. Petersburg, FL33701-4846
(727) 502-8000
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| Data category: | Sampling, Imagery |
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| Data type: | Geology, Photo |
| Name | Survey Equipment | Description |
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| Lower Keys core descriptions 9/1985 | Core Barrels | Lower Keys handwritten core description sheets from cores taken Sept. 1985. Cores with matches in samples database: New Found Harbor 1-4, LP1, LP2, 0LP2, Howe Key 1, Boobie Patch 1-7, Big Pine Key M06a. Other cores: WK-1, BPMO2A, W. Content Key, Wicatat Key, Sawyer Key, Cottral Key |
| Equipment | Usage description | Data types | Datasets |
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| Core Barrels | Geology | 1 | |
| Digital Camera | Photo, Video | (no data reported) |
| Dataset name | Equipment | Description | Dataset contact |
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| USGS Archive of Computed tomography (CT) Scans of Coral Cores | Core Barrels | This data release presents computed tomography (CT) imagery generated from coral core samples curated within the U.S. Geological Survey (USGS) Coral-Core Archive. These data were collected as part of ongoing USGS coral-reef research activities and include samples originating from multiple locations and collection efforts. A Geotek Rotating X-ray CT (RXCT) system was used to acquire x-ray images and perform CT reconstructions of archived coral cores. The full three-dimensional CT dataset consists of individual axial slices which are reconstructed images in TIFF format. These axial slices are oriented perpendicular to the long axis of the core. Two-dimensional orthogonal views are also provided that illustrate representative downcore slabs of each core. Geotek software-proprietary XML files are provided in each folder containing axial slices and orthogonal views, containing more image-scaling and information on x-ray system settings and reconstruction parameters. This data release allows future expansions of the archive to incorporate CT imagery scanned under the same consistent methodology from additional coral cores, locations, and collection efforts. | Ferdinand K Oberle |