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#1 Federal

Elevation of the Holocene transgressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (utelev Esri binary grid; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

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Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: September 10, 2026 at 10:26 PM

#2 Federal

Isochron of Holocene fluvial and estuarine (Qfe) sediment thickness beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (qfeiso Esri binary grid; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

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Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 08:29 PM

#3 Federal

Hillshaded-relief image produced from the late Wisconsinan to early Holocene regressive unconformity (Ur) beneath Vineyard and western Nantucket Sounds, Massachusetts (GeoTIFF Image; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Vineyard and western Nantucket Sounds, Massachusetts. These maps were derived from interpretations of...

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Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 09:26 PM

#4 Federal

Isopach of Holocene fluvial and estuarine (Qfe) sediment and nearshore marine (Qmn) sediment thickness beneath Buzzards Bay, Massachusettts (Qfeqmniso, Esri binary grid; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Buzzards Bay, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles,...

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Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 08:04 PM

#5 Federal

Interpretation of sea floor geologic units for Vineyard and western Nantucket Sounds, Massachusetts (polygon shapefile; Geographic, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Vineyard and western Nantucket Sounds, Massachusetts. These maps were derived from interpretations of...

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Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:09 PM

#6 Federal

Elevation of the top of glacial deposits beneath Buzzards Bay, Massachusetts (Urelev, Esri binary grid; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Buzzards Bay, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles,...

XML
XML

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:48 PM

#7 Federal

Hillshaded relief image derived from elevations of the late-Wisconsinan regressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (Urelevhs GeoTIFF Image; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

XML
XML

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:08 PM

#8 Federal

Shot point navigation at even 500 shot intervals for EdgeTech SB-512i, EdgeTech SB-424, and Knudsen 3200 chirp seismic-reflection data collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay (CCB_SeismicShot_500 shapefile)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

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Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 09:50 PM

#9 Federal

40-m Hillshaded relief image produced from elevation of the late-Wisconsinan regressive unconformity beneath Buzzards Bay, Massachusetts (GeoTIFF Image; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Buzzards Bay, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles,...

XML
XML

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 08:35 PM

#10 Federal

SEG-Y format of EdgeTech SB-512i, EdgeTech SB-424, and Knudsen 3200 chirp seismic-reflection profiles collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay.

Organization: Department of the Interior
Dataset Last Updated: September 08, 2020 at 12:00 AM

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

XML
XML

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 09:52 PM

#11 Federal

JPEG formatted images of EdgeTech SB-512i, EdgeTech SB-424, and Knudsen 3200 chirp seismic-reflection profiles collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay.

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

XML
XML

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:24 PM

#12 Federal

Interpretation of sea-floor geologic units on the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (Nahant_CCB_surfgeol polygon shapefile; Geographic WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

XML
XML

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 09:43 PM

#13 Federal

Survey lines along which EdgeTech SB-512i, EdgeTech SB-424, and Knudsen 3200 chirp seismic-reflection data were collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay (CCB_SeismicTrackline Esri Shapefile, Geographic, WGS84).

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

XML
XML

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:05 PM

#14 Federal

Isochron of Holocene marine (Qmn and Qmd) sediment thickness on the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (qmiso Esri binary grid; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

XML
XML

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:15 PM

#15 Federal

Interpretation of sea floor geologic units for Buzzards Bay, Massachusetts (BuzzardsBay_surfgeol, polygon shapefile; Geographic WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Buzzards Bay, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles,...

XML
XML

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:16 PM

#16 Federal

Isochron of dredge-spoil thickness beneath Buzzards Bay, Massachusetts (DredgeSpoil, Esri binary grid; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Buzzards Bay, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles,...

XML
XML

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:04 PM

#17 Federal

Isopach of Holocene fluvial and estuarine (Qfe), nearshore marine (Qmn), and deepwater marine (Qmd) sediment thickness beneath Vineyard and western Nantucket Sounds, Massachusetts (Esri binary grid; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Vineyard and western Nantucket Sounds, Massachusetts. These maps were derived from interpretations of...

XML
XML

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 07:57 PM

#18 Federal

Elevation of the late-Wisconsinan regressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (urelev Esri binary grid; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

XML
XML

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:36 PM

#19 Federal

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

Organization: Department of the Interior
Dataset Last Updated: May 04, 2026 at 12:00 AM

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...

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XML

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 07:50 PM

#20 Federal

Hillshaded relief image derived from elevations of the Holocene transgressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (Utelevhs GeoTIFF Image; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

XML
XML

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:12 PM

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Elevation of the Holocene transgressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (utelev Esri binary grid; UTM, Zone 19N, WGS 84)

Isochron of Holocene fluvial and estuarine (Qfe) sediment thickness beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (qfeiso Esri binary grid; UTM, Zone 19N, WGS 84)

Hillshaded-relief image produced from the late Wisconsinan to early Holocene regressive unconformity (Ur) beneath Vineyard and western Nantucket Sounds, Massachusetts (GeoTIFF Image; UTM, Zone 19N, WGS 84)

Isopach of Holocene fluvial and estuarine (Qfe) sediment and nearshore marine (Qmn) sediment thickness beneath Buzzards Bay, Massachusettts (Qfeqmniso, Esri binary grid; UTM, Zone 19N, WGS 84)

Interpretation of sea floor geologic units for Vineyard and western Nantucket Sounds, Massachusetts (polygon shapefile; Geographic, WGS 84)

Elevation of the top of glacial deposits beneath Buzzards Bay, Massachusetts (Urelev, Esri binary grid; UTM, Zone 19N, WGS 84)

Hillshaded relief image derived from elevations of the late-Wisconsinan regressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (Urelevhs GeoTIFF Image; UTM, Zone 19N, WGS 84)

Shot point navigation at even 500 shot intervals for EdgeTech SB-512i, EdgeTech SB-424, and Knudsen 3200 chirp seismic-reflection data collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay (CCB_SeismicShot_500 shapefile)

40-m Hillshaded relief image produced from elevation of the late-Wisconsinan regressive unconformity beneath Buzzards Bay, Massachusetts (GeoTIFF Image; UTM, Zone 19N, WGS 84)

SEG-Y format of EdgeTech SB-512i, EdgeTech SB-424, and Knudsen 3200 chirp seismic-reflection profiles collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay.

JPEG formatted images of EdgeTech SB-512i, EdgeTech SB-424, and Knudsen 3200 chirp seismic-reflection profiles collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay.

Interpretation of sea-floor geologic units on the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (Nahant_CCB_surfgeol polygon shapefile; Geographic WGS 84)

Survey lines along which EdgeTech SB-512i, EdgeTech SB-424, and Knudsen 3200 chirp seismic-reflection data were collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay (CCB_SeismicTrackline Esri Shapefile, Geographic, WGS84).

Isochron of Holocene marine (Qmn and Qmd) sediment thickness on the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (qmiso Esri binary grid; UTM, Zone 19N, WGS 84)

Interpretation of sea floor geologic units for Buzzards Bay, Massachusetts (BuzzardsBay_surfgeol, polygon shapefile; Geographic WGS 84)

Isochron of dredge-spoil thickness beneath Buzzards Bay, Massachusetts (DredgeSpoil, Esri binary grid; UTM, Zone 19N, WGS 84)

Isopach of Holocene fluvial and estuarine (Qfe), nearshore marine (Qmn), and deepwater marine (Qmd) sediment thickness beneath Vineyard and western Nantucket Sounds, Massachusetts (Esri binary grid; UTM, Zone 19N, WGS 84)

Elevation of the late-Wisconsinan regressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (urelev Esri binary grid; UTM, Zone 19N, WGS 84)

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

Hillshaded relief image derived from elevations of the Holocene transgressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (Utelevhs GeoTIFF Image; UTM, Zone 19N, WGS 84)