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

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:
Bedrock Surface map.
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
Satellite image of the Florida Keys showing location of tiles.
Organization of Report
Tiles: 1, 2, 3, 4,
5, 6, 7/8, 9/10,
11
Summary
Acknowledg-
ments
References
Disclaimer
Related
Publications

Tile 6

Tile 6 coordinates:
24°36'16.14" N. 81°41'35.20" W.
24°39'30.32" N. 81°25'29.30" W.
24°32'15.45" N. 81°23'47.41" W.
24°29'01.42" N. 81°39'44.31" W.
Major Geographic Sites: Onshore, Tile 6 (lower Keys) includes the southernmost parts of the Saddlebunch Keys (Fig. 86A, 86C; 86B shows the middle and upper Keys). West Washerwoman constitutes a prominent mid-shelf cluster of patch reefs in the middle of Hawk Channel. Offshore reefs include Looe Key Reef, American, Maryland, and Pelican Shoals, and Eastern Sambo.

Three fully protected no-take zones have been established at Looe Key Reef (see Marine Sanctuaries). One area is a Sanctuary Preservation Area and another a Research Only Area. Both lie within the boundary of an Existing Management Area. Reefs at Eastern Sambo have been designated a Research Only Area.

Figure 86. (A) Landsat satellite image of south Florida shows individual tile boundaries (blue rectangles) of this regional study in the Florida Keys National Marine Sanctuary. Tile 6 is highlighted. (B) Index map shows locations of named reefs and shoals in the upper Keys and northeastern middle Keys, delineated by dashed lines. Red rectangles show geographic boundaries of Tiles 1, 2, 3, and 4. (C) Contiguous part of index map shows westernmost part of middle Keys and the lower Keys (dashed lines). Red rectangles show geographic boundaries of Tiles 5 and 6, with Tile 6 and its geographic sites highlighted. Note the boundary of Looe Key National Marine Sanctuary (parallelogram at shelf margin) lies within the boundary of the Florida Keys National Marine Sanctuary (red line). Shelf-margin contour is in blue. Contours are in meters. [larger version]
Landsat satellite image of south Florida shows individual tile boundaries (blue rectangles) of this regional study in the Florida Keys National Marine Sanctuary. Tile 6 is highlighted.
Index map shows locations of named reefs and shoals in the upper Keys and northeastern middle Keys
Contiguous part of index map shows westernmost part of middle Keys and the lower Keys

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

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