Lidz, B.H., Reich, C.A., and Shinn, E.A., 2012, Systematic Mapping of Bedrock and Habitats along the Florida Reef Tract - Central Key Largo to Halfmoon Shoal (Gulf of Mexico): GIS Data: Professional Paper 2007-1751, U.S. Geological Survey, St. Petersburg, FL.Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.000100
Ordinates (y-coordinates) are specified to the nearest 0.000100
Planar coordinates are specified in meters
The horizontal datum used is North American Datum of 1927.
The ellipsoid used is Clarke 1866.
The semi-major axis of the ellipsoid used is 6378206.400000.
The flattening of the ellipsoid used is 1/294.978698.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
Positive real numbers that are automatically generated.
Positive real numbers that are automatically generated.
Range of values | |
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Minimum: | 0 |
Maximum: | 331 |
Units: | meters |
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
Positive real numbers that are automatically generated.
Positive real numbers that are automatically generated.
Range of values | |
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Minimum: | 0 |
Maximum: | 46 |
Units: | meters |
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
Positive real numbers that are automatically generated.
Positive real numbers that are automatically generated.
The text name of the marine habitat classification.
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To provide a synthesis of biologic and geologic data for the Florida reef tract, including depth to Pleistocene bedrock, thickness of Holocene sediments, and benthic habitat classification.
Florida Department of Transportation, 1975, 1975 Aerial photography: Florida Department of Transportation, Tallahassee, FL.
National Oceanic and Atmospheric Administration, 1992, 1991 & 1992 Aerial photography: National Oceanic and Atmospheric Administration, Silver Spring, Md.
Agency, Environmental Protection , 1983, Florida Keys Seagrass and Coral Reef Inventory, v. 2, Sombrero Key to Marquesas Rock, February 1982: Report prepared for U.S. Fish and Wildlife Service and Minerals Management Service under Contract No. 68-03-3049: Environmental Protection Agency, Las Vegas, NV.
Peery, G.M. et al., 2002, Archive of seismic reflection data collected during USGS cruise 97KEY01, upper and middle Florida Keys, 12 October-1 November 1997: U.S. Geological Survey Open-File Report 02-421: Open-File Report 02-421, U.S. Geological Survey, St. Petersburg, FL.
Enos, 1977, Holocene sediment accumulations of the South Florida shelf margin: Geological Society of America Memoir 147.
Data sources used in this process:
Data sources produced in this process:
Attributes were checked against available data, reports, and supplemental information and reflect substantiated geologic and biotic interpretations.
Digital data were compiled using source data at a scale of 1:48,000 and are not intended to be used at a larger (greater detail) scale. Positional accuracy of the seismic surveys from which most of the interpretations are based is +/-100 meters.
Vertical data related to depth and thickness of sedimentary layers are relative to sea level. Estimates of accuracy for the seismic data (the primary source of vertical data) have not been determined. These data should not be used for bathymetry.
Data layers are complete. No data were intentionally omitted. Several data layers from the report titled "Sedimentary Grains from 1989" are not available in digital vector format and are not included in this geodatabase, but they have been published at <http://sofia.usgs.gov/publications/ofr/97-453/>.
Coral and sediment cores and radiometric dating were used as supplemental evidence to determine bedrock depth and age, and Holocene thickness. And extensive field knowledge of the three authors as well as the aerial photomosaics was employed in classification of benthic habitats.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- The U.S. Geological Survey and Florida Geological Survey (FGS) request to be acknowledged as originators of the data in future products or derivative research. This digital publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe on privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data published in this report have been used by the USGS, no warranty, expressed or implied, is made by the U.S. Geological Survey as to the accuracy of the data and related materials and/or the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of there data, software, or related materials. Graphical map depictions are intended to be used within the map scale limits applicable to the source data. Although software enables the user to view data at various scales, the user is cautioned to refer to the source documentation for the appropriate map scale limitations.
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U.S. Geological Survey Professional Paper 1751
This digital publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data published in this report have been used by the USGS, no warranty, expressed or implied, is made by the U.S. Geological Survey as to the accuracy of the data and related materials and/or the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data, software, or related materials. Graphical map depictions are intended to be used within the map scale limits applicable to the source data. Although software enables the user to view data at various scales, the user is cautioned to refer to the source documentation for the appropriate map scale limitations.
Data format: | Polygon feature classes in format GDB (version 9.1) ESRI File Geodatabase Size: 2 MB |
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Network links: |
<http://pubs.usgs.gov/pp/2007/1751/Data/> |
Download data from <http://pubs.usgs.gov/pp/2007/1751/Data/>
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