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Systematic Mapping of Bedrock and Habitats along the Florida Reef Tract—Central Key Largo to Halfmoon Shoal (Gulf of Mexico)

USGS Professional Paper 1751

by Barbara H. Lidz, Christopher D. Reich, and Eugene A. Shinn

Introduction: Table of Contents Project Overview Project Objective Geologic Setting Primary Datasets Primary Products - Overview Maps & Evolution Overview: Introduction Depth to Pleistocene Bedrock Surface Reef & Sediment Thickness Benthic Ecosystems & Environments Sedimentary Grains in 1989 Summary Illustration Index Map Evolution Overview Tile-by-Tile Analysis Organization of Report Tiles: 1, 2, 3, 4, 5, 6, 7/8, 9/10, 11 Summary Acknowledg- ments References Disclaimer Related Publications

Tile 4 Geography Sector-Specific Studies Geologic Highlights East Sister Rock Moser Channel East Washerwoman Shoal and Other Patch Reefs in Hawk Channel East Turtle Shoal Coffins Patch Delta Shoal and Sombrero Key Reef Coffins Patch: Coffins Patch is a patch reef in a no-take zone (Sanctuary Preservation Area) located south of Crawl and Grassy Keys on the outer shelf behind the shelf margin (Fig. 68B). No specific studies have been conducted at Coffins Patch. continue to: Delta Shoal and Sombrero Key Reef

Coastal & Marine Geology Program > Center for Coastal & Watershed Studies > Professional Paper 1751