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Interpretation of sea floor geologic units for offshore of western and southern Martha's Vineyard and north of Nantucket, Massachusetts

Dates

Publication Date
Start Date
2007-08-09
End Date
2013-06-11

Citation

Pendleton, E.A., Baldwin, W.E., Foster, D.F., Ackerman, S.D., Andrews, B.D, Brothers, L.L., and Schwab, W.C., 2018, Geospatial data layers of shallow geology, sea-floor texture, and physiographic zones from the inner continental shelf of Martha's Vineyard from Aquinnah to Wasque Point, and Nantucket from Eel Point to Great Point: U.S. Geological Survey data release, https://doi.org/10.5066/P9E9EFNE.

Summary

Geologic, sediment texture, and physiographic zone maps characterize the sea floor south and west of Martha's Vineyard and north of Nantucket, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles, high-resolution bathymetry, acoustic-backscatter intensity, bottom photographs, and surficial sediment samples. The interpretation of the seismic stratigraphy and mapping of glacial and Holocene marine units provided a foundation on which the surficial maps were created. This mapping is a result of a collaborative effort between the U.S. Geological Survey and the Massachusetts Office of Coastal Zone Management to characterize the surface and subsurface geologic framework offshore of Massachusetts.

Contacts

Attached Files

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MV_ACK_surfgeology_browse.png
“Map showing the surficial geology from this study.”
thumbnail 570.24 KB image/png
Shapefile: MV_ACK_surfgeology.zip
MV_ACK_surfgeology.CPG 5 Bytes
MV_ACK_surfgeology.dbf 13.66 KB
MV_ACK_surfgeology.prj 145 Bytes
MV_ACK_surfgeology.sbn 2.88 KB
MV_ACK_surfgeology.sbx 260 Bytes
MV_ACK_surfgeology.shp 370.86 KB
MV_ACK_surfgeology.shx 2.23 KB
MV_ACK_surfgeology_browse.png thumbnail 570.24 KB

Purpose

This dataset describes sea-floor geology along the western and southern seafloor offshore of Martha’s Vineyard and north of Nantucket. Polygons are used to indicate the areal distribution of sea-floor outcrop for sub-surface stratigraphic units interpreted in high-resolution seismic reflection data. These data are useful for assessing relations between geologic framework, sea-bed morphology, and sediment textural trends.

Additional Information

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