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In the following pages, all DWF maps and drawings are identified with the tag . Place your mouse cursor over top of the map or drawing, and click the right mouse button to bring up the WHIP! viewing menu. Select one menu option at a time. Some of the maps contain objects with URLs attached, providing links to other pages. You can highlight these URLs from the WHIP! menu. For more information about DWF files and using WHIP!, go to the WHIP! home page.

Maryland's Coastal Bays Sediment Mapping Project To accomplish the project objectives, coastal geologist at the Survey collected shallow sediment cores and surface sediment samples from Maryland’s coastal bays. The index map at the right shows the study area and the location of sediment cores collected for the study. In addition to surficial samples and cores, Survey geologists collected 33 kilometers of seismic profile records in the northern two bays. The cores were X-rayed, then extruded from the liner, split, photographed and visually described. Sediment samples were taken at specific locations in the cores based on the visual and radiographic observations. Core samples were analyzed for water content, textural properties, total nitrogen, carbon, sulfur, and phosphorus, and eight metals: Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn. The core logs and x-radiographs for selected cores may be viewed by positioning the cursor on a blue core location symbol. When the "pointing finger" appears, left-mouse click. A total of 988 surficial sediment samples were collected for the project. Surficial sediment samples were collected every 500 meters and analyzed for water content, textural properties (percent gravel, sand , silt, and clay), total nitrogen, carbon, sulfur, organic carbon, and phosphorus, and eight metals: Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn. Results from these analyses were used to map the distribution of sediment type, nitrogen, carbon and sulfur contents and relative enrichment of the metals. Individual surficial sample locations may be viewed on one of several “inset maps” indicated on the index map to the right. To view one of these insets, position the cursor on a blue letter. When the "pointing finger" appears, left-mouse click.