Sea-floor videos and location of bottom video tracklines collected in Nantucket Sound, Massachusetts, in May 2016 and May 2017 by the U.S. Geological Survey during field activities 2016-005-FA and 2017-022-FA (MP4 video files and polyline shapefile)

Two marine geological surveys were conducted in Nantucket Sound, Massachusetts, in May 2016 and May 2017 by the U.S. Geological Survey as part of an agreement with the Massachusetts Office of Coastal Zone Management to map the geology of the sea floor offshore of Massachusetts. Samples of surficial sediment and photographs of the sea floor were collected at 76 sampling sites within the survey area, and sea-floor videos were collected at 75 of the sites. The sediment data and the observations from the photos and videos are used to explore the nature of the sea floor; in conjunction with high-resolution geophysical data, the observations are used to make interpretive maps of sedimentary environments and validate acoustic...

Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, CMHRP, CZM, Coastal and Marine Hazards and Resources Program, MA CZM, All tags... MP4, MassCZM, Massachusetts, Massachusetts Office of Coastal Zone Management, MiniSEABOSS, Nantucket, Nantucket Sound, North America, R/V Rafael, R/V Tioga, SEABOSS, SEABed Observation and Sampling System, SeaViewer 6000 HD Sea-Drop, U.S. Geological Survey, USGS, United States, WHCMSC, Woods Hole Coastal and Marine Science Center, bottom video, continental shelf, field activity 2016-005-FA, field activity 2017-022-FA, geoscientificInformation, ground-truth, location, marine geology, navigational data, oceans, sea floor, sea-floor characteristics, seabed video, seafloor, sediment analysis, sediments, shapefile, sound, stations, video monitoring, video observation, videography, videos, Fewer tags

Vineyard and Nantucket Sounds, Southern coast of Cape Cod including Martha's Vineyard and Nantucket: Polygon boundaries for source data of a continuous bathymetry and topography terrain model of the Massachusetts coastal zone and continental shelf: (Esri polygon shapefile, Geographic, NAD 83).

Integrated terrain models covering 16,357 square kilometers of the Massachusetts coastal zone and offshore waters were built to provide a continuous elevation and bathymetry terrain model for ocean planning purposes. The area is divided into the following four geographical areas to reduce file size and facilitate publishing: Massachusetts Bay from the Massachusetts-New Hampshire border south to Provincetown and Scituate and east to Stellwagen Bank; Cape Cod Bay from Provincetown to Scituate and south to Hyannis; Buzzards Bay from the Cape Cod Canal southwest to the State border including the Elizabeth Islands and extending north to Fall River and Mount Hope Bay; and Nantucket and Vineyard Sounds, from Hyannis south...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CZM, Cape Cod, Commonwealth of Massachusetts, Cross Rip Shoal, Great Round Shoal Channel, All tags... LiDAR, Martha's Vineyard, Massachusetts Office of Coastal Zone Management, Middle Ground, Muskeget Channel, NOAA, NOS, Nantucket, Nantucket Sound, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Army Corps of Engineers, U.S. Geological Survey, USACE, USGS, United States of America, Vineyard Sound, bathymetry, boundaries, digital elevation models, echosounder, inlandwaters, multibeam, oceans, sea-floor characteristics, shapefile, swath bathymetry, Fewer tags

Transient Electromagnetic Data from East Falmouth MA

On June 5, 2015, transient electromagnetic (TEM) data were acquired on the baseball field at the East Falmouth, Massachusetts Elementary School approximately 30 m north the well MA-FWS-750. Transient electromagnetic induction (TEM) surveys provide resistivity soundings of the subsurface, which can be related to lithology and hydrogeology. Electrical current is cycled through a wire placed on the land surface in a transmitter loop (Tx), which in turn produces a static magnetic field. When the current is abruptly terminated, an instantaneous current is induced in the earth, and it moves downward and outward as the induced current decays with time. The decay is controlled by the resistivity of the earth. One or more...

Tags: Borehole Logging, East Falmouth, Electromagnetic, Groundwater, Massachusetts, All tags... Nantucket Sound, Resistivity, TEM, Time Domain, Transient Electromagnetic, environment, geoscientificInformation, Fewer tags

Physiographic Zones of the Sea Floor offshore of western and southern Martha's Vineyard and north of Nantucket, Massachusetts

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...

Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Aquinnah, Atlantic Ocean, Backscatter, Bathymetry, CMGP, All tags... CZM, Cape Cod, Chappaquiddick Island, Children's Beach, Chilmark, Coastal Embayment, Coastal and Marine Geology Program, Coatue, Dionis Beach, Ebb-tidal Delta, Eel Point, Esri Shapefile, Gay Head, Great Point, Hard-bottom Plain, Interpretation, Katama Beach, Long Point Wildlife Refuge, Lucy Vincent Beach, Marine Geology, Martha's Vineyard, Massachusetts, Massachusetts Office of Coastal Zone Management, Muskeget Channel, Muskeget Island, Nantucket, Nantucket Harbor, Nantucket Sound, Nearshore Basin, Nearshore Ramp, Nomans Land, Outer Basin, Physiographic Zones, Rocky Zone, Sea floor, Shell Zone, Shoal\Sand Wave, Shovelful Shoal, Slope, South Beach, Squibnocket Beach, Squibnocket Point, Tisbury, Tisbury Great Pond Beach, Topography, Tuckernuck Bank, Tuckernuck Island, Tuckernuck Shoal, U.S. Geological Survey, U.S. Geological Survey Open-File Report 2008-1288, U.S. Geological Survey Open-File Report 2012-1006, U.S. Geological Survey Open-File Report 2016-1168, USGS, Vineyard Sound, WHCMSC, Wasque Shoal, Wasque point, Woods Hole Coastal and Marine Science Center, geoscientificInformation, geospatial datasets, marine geology, oceans, scientific information, sea-floor characteristics, sedimentology, sieve-size analysis, unconsolidated deposits, Fewer tags

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

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...

Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: 3200, 424, 512i, Aquinnah, Atlantic Ocean, All tags... Boomer, CMGP, CZM, Cape Cod, Chappaquiddick Island, Children's Beach, Chilmark, Coastal and Marine Geology Program, Coatue, Dionis Beach, EdgeTech, Eel Point, Esri Shapefile, Gay Head, Geologic Framework, Great Point, Holocene, Interpretation, Katama Beach, Knudsen, Long Point Wildlife Refuge, Lucy Vincent Beach, Marine Geology, Martha's Vineyard, Massachusetts, Massachusetts Office of Coastal Zone Management, Muskeget Channel, Muskeget Island, Nantucket, Nantucket Harbor, Nantucket Sound, Nomans Land, Pleistocene, Sea floor, Seismic Interpretation, Seismic-reflection Profiles, Shovelful Shoal, South Beach, Squibnocket Beach, Squibnocket Point, Surficial Geology, Tisbury, Tisbury Great Pond Beach, Tuckernuck Bank, Tuckernuck Island, Tuckernuck Shoal, U.S. Geological Survey, U.S. Geological Survey Open-File Report 2008-1288, U.S. Geological Survey Open-File Report 2012-1006, U.S. Geological Survey Open-File Report 2016-1168, USGS, Vineyard Sound, WHCMSC, Wasque Shoal, Wasque point, Woods Hole Coastal and Marine Science Center, geoscientificInformation, geospatial datasets, marine geology, oceans, scientific interpretation, sea-floor characteristics, sedimentation, unconsolidated deposits, Fewer tags

Elevation of the late Wisconsinan to early Holocene regressive unconformity (Ur) offshore of western and southern Martha's Vineyard and north of Nantucket, Massachusetts

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...

Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: 32-bit GeoTIFF, 512i, Aquinnah, Atlantic Ocean, CMGP, All tags... CZM, Cape Cod, Chappaquiddick Island, Children's Beach, Chilmark, Coastal and Marine Geology Program, Coatue, Depth to glacial deposits, Dionis Beach, EdgeTech, Eel Point, Gay Head, Geologic Framework, Great Point, Holocene, Holocene, Interpretation, Katama Beach, Long Point Wildlife Refuge, Lucy Vincent Beach, Marine Geology, Martha's Vineyard, Massachusetts, Massachusetts Office of Coastal Zone Management, Muskeget Channel, Muskeget Island, Nantucket, Nantucket Harbor, Nantucket Sound, Nomans Land, Pleistocene, Regressive Unconformity, Sea floor, Seismic Interpretation, Seismic-reflection Profiles, Shovelful Shoal, South Beach, Squibnocket Beach, Squibnocket Point, Tisbury, Tisbury Great Pond Beach, Tuckernuck Bank, Tuckernuck Island, Tuckernuck Shoal, U.S. Geological Survey, U.S. Geological Survey Open-File Report 2008-1288, U.S. Geological Survey Open-File Report 2012-1006, U.S. Geological Survey Open-File Report 2016-1168, USGS, Vineyard Sound, WHCMSC, Wasque Shoal, Wasque point, Wisconsinan, Woods Hole Coastal and Marine Science Center, geologic contacts, geologic structure, geoscientificInformation, geospatial datasets, imageryBaseMapsEarthCover, marine geology, oceans, scientific interpretation, sea-floor characteristics, sedimentation, unconsolidated deposits, Fewer tags

Continuous Bathymetry and Elevation Models of the Massachusetts Coastal Zone and Continental Shelf (ver. 3.0, December 2019)

Integrated terrain models covering 16,357 square kilometers of the Massachusetts coastal zone and offshore waters were built to provide a continuous elevation and bathymetry terrain model for ocean planning purposes. The area is divided into the following four geographical areas to reduce file size and facilitate publishing: Massachusetts Bay from the Massachusetts-New Hampshire border south to Provincetown and Scituate and east to Stellwagen Bank; Cape Cod Bay from Provincetown to Scituate and south to Hyannis; Buzzards Bay from the Cape Cod Canal southwest to the State border including the Elizabeth Islands and extending north to Fall River and Mount Hope Bay; and Nantucket and Vineyard Sounds, from Hyannis south...

Categories: Data, Data Release - Revised; Tags: Boston Harbor, Buzzards Bay, Cape Cod Bay, Commonwealth of Massachusetts, Elizabeth Islands, All tags... Gulf of Maine, Massachusetts Bay, Nantucket Sound, Plymouth Bay, Stellwagen Bank, Vineyard Sound, bathymetry, digital elevation models, sea-floor characteristics, Fewer tags

Holocene fluvial and estuarine (Qfe) and nearshore marine (Qmn) sediment thickness offshore of western and southern Martha's Vineyard and north of Nantucket, Massachusetts

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...

Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: 32-bit GeoTIFF, 512i, Aquinnah, Atlantic Ocean, CMGP, All tags... CZM, Cape Cod, Chappaquiddick Island, Children's Beach, Chilmark, Coastal and Marine Geology Program, Coatue, Dionis Beach, EdgeTech, Eel Point, Gay Head, Geologic Framework, Great Point, Holocene, Holocene, Interpretation, Katama Beach, Long Point Wildlife Refuge, Lucy Vincent Beach, Marine Geology, Martha's Vineyard, Massachusetts, Massachusetts Office of Coastal Zone Management, Muskeget Channel, Muskeget Island, Nantucket, Nantucket Harbor, Nantucket Sound, Nomans Land, Pleistocene, Sea floor, Sediment thickness, Seismic Interpretation, Seismic-reflection Profiles, Shovelful Shoal, South Beach, Squibnocket Beach, Squibnocket Point, Tisbury, Tisbury Great Pond Beach, Tuckernuck Bank, Tuckernuck Island, Tuckernuck Shoal, U.S. Geological Survey, U.S. Geological Survey Open-File Report 2008-1288, U.S. Geological Survey Open-File Report 2012-1006, U.S. Geological Survey Open-File Report 2016-1168, USGS, Vineyard Sound, WHCMSC, Wasque Shoal, Wasque point, Woods Hole Coastal and Marine Science Center, geologic contacts, geologic structure, geoscientificInformation, geospatial datasets, imageryBaseMapsEarthCover, marine geology, oceans, scientific interpretation, sea-floor characteristics, sedimentation, unconsolidated deposits, Fewer tags

Sediment Texture of the Sea Floor offshore of western and southern Martha's Vineyard and north of Nantucket, Massachusetts

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...

Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Aquinnah, Atlantic Ocean, Backscatter, Bathymetry, Bottom Photographs, All tags... Bottom type, CMGP, CZM, Cape Cod, Chappaquiddick Island, Children's Beach, Chilmark, Coastal and Marine Geology Program, Coatue, Dionis Beach, Eel Point, Esri Shapefile, Gay Head, Great Point, Interpretation, Katama Beach, Long Point Wildlife Refuge, Lucy Vincent Beach, Marine Geology, Martha's Vineyard, Massachusetts, Massachusetts Office of Coastal Zone Management, Muskeget Channel, Muskeget Island, Nantucket, Nantucket Harbor, Nantucket Sound, Nomans Land, Sea floor, Sediment Cover, Sediment Distribution, Sediment Samples, Sediment Texture, Seismic-reflection Profiles, Shovelful Shoal, Slope, South Beach, Squibnocket Beach, Squibnocket Point, Tisbury, Tisbury Great Pond Beach, Topography, Tuckernuck Bank, Tuckernuck Island, Tuckernuck Shoal, U.S. Geological Survey, U.S. Geological Survey Open-File Report 2008-1288, U.S. Geological Survey Open-File Report 2012-1006, U.S. Geological Survey Open-File Report 2016-1168, USGS, Vineyard Sound, WHCMSC, Wasque Shoal, Wasque point, Woods Hole Coastal and Marine Science Center, clay deposits, geoscientificInformation, geospatial datasets, grain size analysis, gravel deposits, lithologic maps, marine geology, oceans, sand deposits, scientific interpretation, sea-floor characteristics, sedimentology, surficial geologic units, unconsolidated deposits, Fewer tags

Atypical Feeding Behavior of Long-tailed Ducks in the Wake of a Commercial Fishing Boat while Clamming

Data represents analyses of gizzard and gullet (esophagus and proventriculus) of nine ducks using traditional techniques

Categories: Data; Types: Citation; Tags: Food Habits, Long-tailed Ducks, Nantucket Sound, USGS Science Data Catalog (SDC), Wildlife Biology

Geotagged sea-floor photographs and location of bottom photographs collected in Nantucket Sound, Massachusetts, in May 2016 and May 2017 by the U.S. Geological Survey during field activities 2016-005-FA and 2017-022-FA (JPEG images, point shapefile, and CSV file)

Two marine geological surveys were conducted in Nantucket Sound, Massachusetts, in May 2016 and May 2017 by the U.S. Geological Survey as part of an agreement with the Massachusetts Office of Coastal Zone Management to map the geology of the sea floor offshore of Massachusetts. Samples of surficial sediment and photographs of the sea floor were collected at 76 sampling sites within the survey area, and sea-floor videos were collected at 75 of the sites. The sediment data and the observations from the photos and videos are used to explore the nature of the sea floor; in conjunction with high-resolution geophysical data, the observations are used to make interpretive maps of sedimentary environments and validate acoustic...

Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, CMHRP, CSV, CZM, Coastal and Marine Hazards and Resources Program, All tags... GoPro HERO4 Black, JPEG, JPG, MA CZM, MassCZM, Massachusetts, Massachusetts Office of Coastal Zone Management, MiniSEABOSS, Nantucket, Nantucket Sound, North America, R/V Rafael, R/V Tioga, SEABOSS, SEABed Observation and Sampling System, U.S. Geological Survey, USGS, United States, WHCMSC, Woods Hole Coastal and Marine Science Center, bottom images, bottom photographs, continental shelf, field activity 2016-005-FA, field activity 2017-022-FA, geoscientificInformation, ground-truth, image collections, images, location, marine geology, navigational data, oceans, photographic sampling, photography, photos, sea floor, sea-floor characteristics, seabed images, seabed photographs, seafloor, sediments, shapefile, sound, stations, underwater photography, Fewer tags

Sea-Floor Sediment and Imagery Data Collected in Nantucket Sound, Massachusetts, 2016 and 2017

Two marine geological surveys were conducted in Nantucket Sound, Massachusetts, in May 2016 and May 2017 by the U.S. Geological Survey as part of an agreement with the Massachusetts Office of Coastal Zone Management to map the geology of the sea floor offshore of Massachusetts. Samples of surficial sediment and photographs of the sea floor were collected at 76 sampling sites within the survey area, and sea-floor videos were collected at 75 of the sites. The sediment data and the observations from the photos and videos are used to explore the nature of the sea floor; in conjunction with high-resolution geophysical data, the observations are used to make interpretive maps of sedimentary environments and validate acoustic...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Atlantic Ocean, Marine Geology, Massachusetts, Nantucket, Nantucket Sound, All tags... North America, United States, grab sampling, grain-size analysis, image collections, marine geology, navigational data, photography, sea-floor characteristics, underwater photography, video monitoring, videography, videos, Fewer tags

Specific Conductance Log from East Falmouth MA

Tags: Conductivity, East Falmouth, Groundwater, Massachusetts, Nantucket Sound, All tags... environment, geoscientificInformation, Fewer tags

Vineyard and Nantucket Sounds, southern coast of Cape Cod including Martha's Vineyard and Nantucket: continuous bathymetry and topography terrain model of the Massachusetts coastal zone and continental shelf, (32-bit GeoTIFF, UTM 19 NAD 83, NAVD 88 vertical datum)

Integrated terrain models covering 16,357 square kilometers of the Massachusetts coastal zone and offshore waters were built to provide a continuous elevation and bathymetry terrain model for ocean planning purposes. The area is divided into the following four geographical areas to reduce file size and facilitate publishing: Massachusetts Bay from the Massachusetts-New Hampshire border south to Provincetown and Scituate and east to Stellwagen Bank; Cape Cod Bay from Provincetown to Scituate and south to Hyannis; Buzzards Bay from the Cape Cod Canal southwest to the State border including the Elizabeth Islands and extending north to Fall River and Mount Hope Bay; and Nantucket and Vineyard Sounds, from Hyannis south...

Tags: CZM, Cape Cod, Commonwealth of Massachusetts, Cross Rip Shoal, DEM, All tags... Great Round Shoal Channel, LiDAR, Martha's Vineyard, Massachusetts Office of Coastal Zone Management, Middle Ground, Muskeget Channel, NOAA, NOS, Nantucket, Nantucket Sound, National Ocean Service, National Oceanic and Atmospheric Administration, Terrain Model, U.S. Army Corps of Engineers, U.S. Geological Survey, USACE, USGS, United States of America, Vineyard Sound, bathymetry, digital elevation models, elevation, inlandWaters, multibeam, oceans, sea-floor characteristics, swath bathymetry, Fewer tags

5-m backscatter mosaic from south and west of Martha's Vineyard and north of Nantucket produced from sidescan-sonar and interferometric backscatter datasets

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...

Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Aquinnah, Atlantic Ocean, CMGP, CZM, Cape Cod, All tags... Chappaquiddick Island, Children's Beach, Chilmark, Coastal and Marine Geology Program, Coatue, Dionis Beach, Eel Point, Gay Head, GeoTIFF, Great Point, Katama Beach, Klein 3000, Long Point Wildlife Refuge, Lucy Vincent Beach, Martha's Vineyard, Massachusetts, Massachusetts Office of Coastal Zone Management, Muskeget Channel, Muskeget Island, Nantucket, Nantucket Harbor, Nantucket Sound, Nomans Land, SWATHplus-M, Shovelful Shoal, South Beach, Squibnocket Beach, Squibnocket Point, Tisbury, Tisbury Great Pond Beach, Tuckernuck Bank, Tuckernuck Island, Tuckernuck Shoal, U.S. Geological Survey, U.S. Geological Survey Open-File Report 2008-1288, U.S. Geological Survey Open-File Report 2012-1006, U.S. Geological Survey Open-File Report 2016-1168, USGS, Vineyard Sound, WHCMSC, Wasque Shoal, Wasque point, Woods Hole Coastal and Marine Science Center, backscatter, composite image, geoscientificInformation, grey scale, image collections, imageryBaseMapsEarthCover, interferometric backscatter, interferometric sonar, marine geophysics, mosaic, oceans, remote sensing, sea-floor acoustic reflectivity, sea-floor characteristics, sidescan, sidescan sonar, sidescan sonar, Fewer tags

Transient Electromagnetics, Passive Seismic, and Borehole Electromagnetics, Gamma, and Nuclear Magnetic Resonance Methods to Characterize Glacial Sediments in East Falmouth, Massachusetts, Near Nantucket Sound

In March 2016, the U.S. Geological Survey drilled a borehole, MA-FSW-750-0100, through the unconsolidated sediments and 1.5 m into the bedrock in East Falmouth, Massachusetts, to improve understanding of the glacial history and hydrologic properties of the Cape Cod aquifer. Prior to drilling, candidate sites were investigated using surface geophysical methods. Passive seismic horizontal-to-vertical spectral ratio (HVSR) methods were used to estimate the depth of the unconsolidated deposits over bedrock. Transient electromagnetic (TEM) surveys were conducted to characterize the lithology and salinity of formation water in the subsurface, which was used to plan the borehole completion. The specific conductance of...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Borehole Logging, Conductivity, East Falmouth, Electromagnetic Induction (EMI), Electromagnetic Surveying, All tags... Gamma-Ray Logging, Groundwater, Horizontal to Vertical Spectral Ratio Seismic (HVSR), Massachusetts, Nantucket Sound, Nuclear Magnetic Resonance (NMR), Passive Seismic, Resistivity, Seismic Methods, Time Domain, Transient Electromagnetics (TEM), USGS Science Data Catalog (SDC), environment, geoscientificInformation, Fewer tags

Location and grain-size analysis results of sediment samples collected in Nantucket Sound, Massachusetts, in May 2016 and May 2017 by the U.S. Geological Survey during field activities 2016-005-FA and 2017-022-FA (simplified point shapefile and CSV file)

Two marine geological surveys were conducted in Nantucket Sound, Massachusetts, in May 2016 and May 2017 by the U.S. Geological Survey as part of an agreement with the Massachusetts Office of Coastal Zone Management to map the geology of the sea floor offshore of Massachusetts. Samples of surficial sediment and photographs of the sea floor were collected at 76 sampling sites within the survey area, and sea-floor videos were collected at 75 of the sites. The sediment data and the observations from the photos and videos are used to explore the nature of the sea floor; in conjunction with high-resolution geophysical data, the observations are used to make interpretive maps of sedimentary environments and validate acoustic...

Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, Beckman Coulter Multisizer 3, CMHRP, CSV, CZM, All tags... Coastal and Marine Hazards and Resources Program, MA CZM, MassCZM, Massachusetts, Massachusetts Office of Coastal Zone Management, MiniSEABOSS, Nantucket, Nantucket Sound, North America, R/V Rafael, R/V Tioga, SEABOSS, SEABed Observation and Sampling System, U.S. Geological Survey, USGS, United States, Van Veen grab sampler, WHCMSC, Woods Hole Coastal and Marine Science Center, clay, continental shelf, field activity 2016-005-FA, field activity 2017-022-FA, geoscientificInformation, grab sampling, grab sampling, grain-size analysis, gravel, ground-truth, location, marine geology, oceans, sand, sea floor, sea-floor characteristics, seafloor, seafloor samples, sediment analysis, sediment data, sediment samples, sediments, shapefile, silt, sound, stations, surficial sediment classification, Fewer tags

bNMR logs from East Falmouth MA

A pulsed magnetic resonance borehole tool was used to characterize hydraulic properties of the aquifer. Borehole nuclear magnetic resonance (bNMR) logs were collected to measure the water content and to estimate the pore-size distribution and hydraulic conductivity (K) over the depth of the borehole. The bNMR data were collected July 25-26, 2016, and were processed August 2016.

Tags: Borehole Logging, East Falmouth, Groundwater, Massachusetts, Nantucket Sound, All tags... Nuclear Magnetic Resonance (NMR), environment, geoscientificInformation, Fewer tags

Borehole Electromagnetic and Gamma Logs from East Falmouth MA

In March 2016, the U.S. Geological Survey drilled a borehole, MA-FSW-750, through the unconsolidated sediments and 1.5 m into the bedrock in East Falmouth, Massachusetts, to improve understanding of the glacial history and hydrologic properties of the Cape Cod aquifer. Polyvinyl casing was set through the overburden and into the bedrock. About 10 days after borehole MA-FSW-750 was drilled, it was logged with geophysical methods including natural gamma radiation and electromagnetic induction (EMI) logs to identify changes in the lithology and fluid properties of the subsurface. In addition, the gamma and EMI logs were collected about 100 days after drilling, which allowed the drilling fluids to be displaced and natural...

Tags: Borehole Logging, Conductivity, East Falmouth, Electromagnetic Induction (EMI), Electromagnetic Surveying, All tags... Gamma-Ray Logging, Groundwater, Massachusetts, Nantucket Sound, Natural Gamma Radiation, Resistivity, Seismic Methods, environment, geoscientificInformation, Fewer tags

Passive Seismic data from East Falmouth MA

Passive seismic horizontal-to-vertical spectral ratio (HVSR) methods were used to estimate the depth of the unconsolidated deposits over bedrock. The HVSR method uses a three-component seismometer to measure the vertical and two horizontal components of ambient seismic noise. Seismic noise in the range of ~0.1 to 1 Hertz (Hz) is caused by ocean waves, large regional storms, and tectonic sources. A resonance frequency (f0) is induced in the unconsolidated deposits when there is a substantial contrast (> 2:1) in shear-wave acoustic impedance between the overburden and the bedrock. The f0 is determined from the analysis of the spectral ratio of the horizontal and vertical components of the seismic data. The thickness...

Tags: East Falmouth, Groundwater, Horizontal-to-Vertical Spectral Ratio (HVSR) Seismic, Massachusetts, Nantucket Sound, All tags... Passive Seismic, Seismic Methods, environment, geoscientificInformation, Fewer tags