2005032316240000FALSE20050512172747002005051217293600{BDE9FE3F-5478-4B65-8319-B8A281E2442A}Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535enPulley Ridge is a series of drowned barrier islands that extends almost 200 km in 60-100 m water depths. This drowned ridge is located on the Florida Platform in the southeastern Gulf of Mexico about 250 km west of Cape Sable, Florida. This barrier island chain formed during the initial stage of the Holocene marine transgression. These islands were then submerged and left abandoned near the outer edge of the Florida Platform. The southern portion of Pulley Ridge hosts zooxanthellate scleractinian corals, green, red and brown macro algae, and a mix of deep and typically shallow-water tropical fishes. This reef community is in unusually deep water, and its extent and the controls on its distribution were unknown. To address these questions scientists from the U.S. Geological Survey Coastal and Marine Geology Program in cooperation with scientists from the University of South Florida Department of Marine Sciences have completed a detailed mapping of the southernmost 35 km of Pulley Ridge. The area was mapped using multibeam bathymetry, sidescan-sonar imagery, and high-resolution seismic-reflection profiling to define the geologic framework on which the reef is established. Submersible dives, remotely operated vehicle (ROV) transects, and transects of bottom photographs and video were collected to identify the corals and to map their distribution. This extensive suite of data has been compiled and preliminary analysis of the data suggests that the reefs are not tied to the ridge system, but instead are more broadly distributed. Whether reef distribution is controlled by oceanographic conditions or by subtle differences in the substrate that overlies the barrier island system is unclear, and are topics of continued research.This polygon shapefile is intended to give the approximate extent of Pulley Ridge.Robert B. Halley2005Approximate Bounds of the Pulley Ridge Extentallpulleyvector digital dataDavid C. TwichellVeeAnn A. Crosshttp://pubs.usgs.gov/of/2005/1089/data/basemap/allpulley.zipVeeAnn A. CrossDavid C. TwichellRobert B. HalleyKate T. CiembronowiczBret D. JarrettErika S. Hammar-KloseAl C. HineStan D. LockerDave F. Naarhttp://pubs.usgs.gov/of/2005/10892005GIS Compilation of Data Collected from the Pulley Ridge Deep Coral Reef RegionOpen-File Report2005-1089Woods Hole Science Center, Woods Hole, MAU.S. Geological Survey, Coastal and Marine Geology Programpublication dateNone planned-84.000000-83.50000026.16666824.500000-84.000000-83.50000024.50000026.166668GeneralFloridaFlorida ShelfGulf of MexicoNorth AmericaPulley RidgeUnited StatesGeneralboundsCMGPCoastal and Marine Geology Programcoralcoral reefOF 2005-1089Open-File ReportpolygonreefshapefileU.S. Geological SurveyUSGSWoods Hole Science CenterNone.The U.S. Geological Survey must be referenced as the originator of the dataset in any future products or research derived from these data. ShapefileRobert HalleyU.S. Geological SurveyGeologistmailing and physical addressUSGS Center for Coastal and Watershed Studies600 Fourth Street SouthSt. PetersburgFL33701-4846(727) 803-8747x3113(727) 803-2032rhalley@usgs.govMicrosoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535allpulley-84-83.526.16666824.51-84-83.526.16666824.51enFGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local timeVeeAnn A. CrossU.S. Geological SurveyMarine Geologistmailing and physical address384 Woods Hole Rd.Woods HoleMA02543-1598(508) 548-8700 x2251(508) 457-2310vatnipp@usgs.gov20050512http://www.esri.com/metadata/esriprof80.htmlESRI Metadata ProfileISO 19115 Geographic Information - MetadataDIS_ESRI1.0datasetDownloadable Data0.0000.000ShapefileDavid C. TwichellU.S. Geological SurveyOceanographermailing and physical address384 Woods Hole Rd.Woods HoleMA02543-1598(508) 548-8700 x2266(508) 457-2310dtwichell@usgs.govThese data were 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 in this report have been used by the 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.002file://\\VEECRODTXP\Projects\reefs\gis\basemap\allpulley.shpLocal Area Network0.000ShapefileVectorSimplePolygonFALSE1FALSEFALSEG-polygon1GCS_North_American_1983Decimal degrees0.0000000.000000North American Datum of 1983Geodetic Reference System 806378137.000000298.257222GCS_North_American_19831allpulleyFeature Class1FIDFIDOID400Internal feature number.ESRISequential unique whole numbers that are automatically generated.ShapeShapeGeometry000Feature geometry.ESRICoordinates defining the features.AREAAREANumber123Area that the polygon encloses in meters. Based on projection in the UTM, Zone 17, NAD 83 projection.Data processor87260470578726047057metersPERIMETERPERIMETERNumber123Perimeter of the polygon in meters. Based on projection in the UTM, Zone 17, NAD 83 projection.Data processor.455793.14455793.14meters20050512Coordinates in decimal degrees were used to create the initial polygon enclosing the approximate extent of Pulley Ridge. This polygon was then edited such that the southern boundary approximated the 500 m contour based on the Coastal Relief Model bathymetry.Area and perimeter calculations performed in ArcView 3.3 using the sample script "calcapl.ave".