The USGS Coastal and Marine Geology Program (CMGP) provided the funding for research east and northeast of the Looe Key National Marine Sanctuary (LKNMS), to Molasses Reef off the upper Keys. Billy Causey, Superintendent of the Florida Keys National Marine Sanctuary (FKNMS), and Sanctuary Rangers (Florida Department of Natural Resources, Bureau of Environmental Land Management) are thanked for their cooperation during the field survey. Personnel from the USGS in St. Petersburg, Fla., and the National Oceanic and Atmospheric Administrations (NOAA) FKNMS conducted most of the project in the middle and upper Keys as a cooperative study under permit FKNMS-29-97. We thank Captain Stephen R. Cawthon who led Captain's Lady on her final voyage as a research vessel in 1997, for assistance in data collection. Appreciation is extended to numerous colleagues for their field assistance. All are acknowledged by name in publications resulting from each part of the project. Stanley D. Locker, University of South Florida St. Petersburg campus, assisted in numerical data conversion to compensate for the rapid speed-of-sound return in shallow water. James G. Flocks, USGS geologist, produced the seismic-profile trackline navigation and data map panels for contouring. Digital cartographer Lance E. Thornton digitized final contours into the ARC/INFO GIS program for the bedrock and isopach plates. Jeff Dismukes provided scripts for editing and reformatting the navigation data for use with ESRIs ArcView 3.2. The authors greatly appreciate the efforts of these colleagues.
Marine seismic reflection data are used to image and map sedimentary and structural features of the seafloor and subsurface. These data are useful in mapping the extent and thickness of shallow sedimentary units in the upper and middle Florida Key, and in assessing other submarine geologic characteristics and features. The main objective of this cruise was to fill a major gap in the seismic data record. Data had not been collected for this area at any time during a 20-year study of the reef track.
Are there legal restrictions on access or use of the data?
Access_Constraints: None. These data are held in the public domain.
Use_Constraints:The U.S. Geological Survey requests to be acknowledged as the originator of the data in future products or derivative research.
This Digital Versatile Disc (DVD) 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, make 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 on this DVD have been used bythe USGS, no warranty, expressed or implied, is made by the USGS 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 this data, software, or related materials.
|Data format:||The SEG-Y standard format (Barry and others, 1975) consists of the following: a 3600-byte reel identification header with the first 3200 bytes consisting of an ASCII header block and a 400-byte binary header block. Both headers include information specific to line and reel number. The trace data block follows the reel identification header. The first 240 bytes of each trace block is the binary trace identification header. The seismic data samples follow the trace identification header. in format SEG-Y|
|Media you can order:||
(format UDF (Universal Disc Format))
Note: UNIX, LINUX, DOS, MAC
|Data format:||SEGY data download|
Most open-file reports are available from USGS Information Services, Box 25286, Federal Center, Denver, CO 80225 (telephone: 303-202-4210; email: email@example.com)
Use of SEG-Y data requires specialized seismic processing software, such as Unix or Linux based public domain software Seismic Unix (SU) developed by the Colorado School of Mines, Center for Wave Phenomena, which can be downloaded from <http://www.cwp.mines.edu/cwpcodes> free of charge.