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)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Wayne Baldwin
Publication_Date: 2013
Title:
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)
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2012-1157
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://doi.org/10.3133/ofr20121157
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Pendleton, E.A.
Originator: Baldwin, W.E.
Originator: Barnhardt, W.A.
Originator: Ackerman, S.D.
Originator: Foster, D.S.
Originator: Andrews, B.D.
Originator: Schwab, W.C.
Publication_Date: 2013
Title:
Shallow Geology, Sea-floor Texture, and Physiographic Zones of the Inner Continental Shelf from Nahant to Northern Cape Cod Bay, Massachusetts
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2012-1157
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/of/2012/1157/
Description:
Abstract:
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 floor from Nahant to Northern Cape Cod Bay. Much of the geophysical data used to create the interpretive layers were collected under a cooperative agreement among the Massachusetts Office of Coastal Zone Management (CZM), the U.S. Geological Survey (USGS), Coastal and Marine Geology Program, the National Oceanic and Atmospheric Administration (NOAA), and the U.S. Army Corps of Engineers (USACE). Initiated in 2003, the primary objective of this program is to develop regional geologic framework information for the management of coastal and marine resources. Accurate data and maps of seafloor geology are important first steps toward protecting fish habitat, delineating marine resources, and assessing environmental changes because of natural or human effects. The project is focused on the inshore waters of coastal Massachusetts. Data collected during the mapping cooperative involving the USGS have been released in a series of USGS Open-File Reports (http://woodshole.er.usgs.gov/project-pages/coastal_mass/html/current_map.html). The interpretations released in this study are for an area extending from the southern tip of Nahant to Northern Cape Cod Bay, Massachusetts. A combination of geophysical and sample data including high resolution bathymetry and lidar, acoustic-backscatter intensity, seismic-reflection profiles, bottom photographs, and sediment samples are used to create the data interpretations. Most of the nearshore geophysical and sample data (including the bottom photographs) were collected during several cruises between 2000 and 2008. More information about the cruises and the data collected can be found at the Geologic Mapping of the Seafloor Offshore of Massachusetts Web page: http://woodshole.er.usgs.gov/project-pages/coastal_mass/.
Purpose:
This data set contains a grid representing Holocene fluvial and estuarine (Qfe) sediment thickness (in meters) beneath the Massachusetts inner shelf between Nahant and northern Cape Cod Bay. These data are useful for assessing relations between geologic framework, sea-bed morphology, and sediment textural trends. Qfe is the lowermost Holocene sedimentary deposit that fills the fluvial valleys incised into the surface of Qd (undifferentiated Pleistocene glacial drift).
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20060804
Ending_Date: 20080507
Currentness_Reference: ground condition of data used to derive the interpretation
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.828717
East_Bounding_Coordinate: -70.299030
North_Bounding_Coordinate: 42.347379
South_Bounding_Coordinate: 41.927962
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:311beb0b-1155-4098-a38b-f36624d7d2da
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: Massachusetts Office of Coastal Zone Management
Theme_Keyword: CZM
Theme_Keyword: Sea floor
Theme_Keyword: Marine Geology
Theme_Keyword: Seismic-reflection Profiles
Theme_Keyword: field activity number 2006-012-FA
Theme_Keyword: field activity number 2007-001-FA
Theme_Keyword: field activity number 2007-002-FA
Theme_Keyword: field activity number 2008-002-FA
Theme_Keyword: Esri Raster Grid
Theme_Keyword: EdgeTech
Theme_Keyword: 512i
Theme_Keyword: 424
Theme_Keyword: Knudsen
Theme_Keyword: 3200
Theme_Keyword: Seismic Interpretation
Theme_Keyword: Geologic Framework
Theme_Keyword: Holocene
Theme_Keyword: Sediment thickness
Theme_Keyword: interpretation
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: stratigraphic thickness
Theme_Keyword: scientific interpretation
Theme_Keyword: marine geophysics
Theme_Keyword: geospatial datasets
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Massachusetts Bay
Place_Keyword: Atlantic Ocean
Place_Keyword: Boston Harbor
Place_Keyword: Nahant
Place_Keyword: Boston
Place_Keyword: Hull
Place_Keyword: Boston Harbor Islands
Place_Keyword: Duxbury
Place_Keyword: Provincetown
Place_Keyword: Plymouth
Place_Keyword: Scituate
Place_Keyword: Cohasset
Place_Keyword: Manomet
Place_Keyword: Winthrop
Place_Keyword: Cape Cod Bay
Access_Constraints: None
Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information. Additionally, there are limitations associated with eologic mapping interpretations. Because of the scale and line spacing of the source seismic profiles, not all changes in seafloor geology are captured. Horizons are inferred between seismic lines, and unit exents and thicknesses should be considered an approximation of the location of a change in geology. Further, a constant seismic velocity of 1,500 m/s was assumed for all profiles in all sediment types, which may result in inaccurate depths of stratigraphic units.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Wayne Baldwin
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2226
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
browse image of Esri grid representing Holocene fluvial and estuarine (Qfe) sediment thickness
Browse_Graphic_File_Type: png
Native_Data_Set_Environment:
Microsoft Windows 7.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4000
Cross_Reference:
Citation_Information:
Originator: Robert N. Oldale
Originator: Jennifer Bick
Publication_Date: 1987
Title:
Maps and Seismic Profiles Showing Geology of the Inner Continental Shelf, Massachusetts Bay, Massachusetts
Series_Information:
Series_Name: U.S. Geological Survey Miscellaneous Field Studies Map
Issue_Identification: MF-1923
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: 4 sheets
Cross_Reference:
Citation_Information:
Originator: Robert N. Oldale
Originator: Charles J. O'Hara
Publication_Date: 1990
Title:
Maps Showing the Geology of the Inner Continental Shelf, Cape Cod Bay, Massachusetts
Series_Information:
Series_Name: U.S. Geological Survey Miscellaneous Field Studies Map
Issue_Identification: MF-2118
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: 4 sheets
Online_Linkage: http://ngmdb.usgs.gov/Prodesc/proddesc_5718.htm
Data_Quality_Information:
Logical_Consistency_Report:
CHIRP seismic-reflection data used to interpret regional geologic framework were collected during USGS Woods Hole Coastal and Marine Science Center field activities 2006-012-FA, 2007-001-FA, 2007-002-FA, and 2008-002-FA. The geologic framework interpretations in this report were correlated with previous interpretations by Oldale and Bick (1987) and Oldale and O'Hara (1990) for Massachusetts and Cape Cod bays, respectively.
Completeness_Report:
All CHIRP seismic reflection data collected during USGS Woods Hole Coastal and Marine Science Center field activities 2006-012-FA, 2007-001-FA, 2007-002-FA, and 2008-002-FA were used to interpret stratigraphic units and unconformities.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Navigational accuracy of the seismic-reflection data used for this interpretation was assumed to be ± 10 to 20 meters. Refer to seismic trackline metadata in Barnhardt and others (2010; http://pubs.usgs.gov/of/2009/1072/GIS/hyperlink_images/seisimage/DH_SeismicProfiles_metadata.html) and Andrews and others (2010; http://pubs.usgs.gov/of/2010/1006/GIS/hyperlink_images/seisimage/CCB_seismicprofiles_metadata.html) for specific seismic data aqcuisition parameters and accuracy reports.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The nominal resolution of the CHIRP seismic-reflection systems is 0.5 meter. The vertical resolution of the bathymetric grid used in generating the transgressive unconformity elevation is 0.5 m (referenced to NAVD88). Overall vertical accuracy is assumed to be +/- 0.5 meter.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Walter A. Barnhardt
Originator: Seth D. Ackerman
Originator: Brian D. Andrews
Originator: Wayne E. Baldwin
Publication_Date: 2010
Title:
Geophysical and Sampling Data from the Inner Continental Shelf: Duxbury to Hull, Massachusetts.
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2009-1072
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/of/2009/1072/
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20060804
Ending_Date: 20070503
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Barnhardt and others, 2010
Source_Contribution:
Shallow geologic framework and surficial geology were interpreted from approximately 1920 trackline kilometers of CHIRP seismic-reflection profiles that were collected during two separate U.S. Geological Survey field activities (2006-012-FA and 2007-001-FA) . Final, post-processed profiles were used to make the interpretations. Thorough descriptions of acquisition and processing parameters for each survey are provided by Barnhardt and others (2010) in the methods section and seismic-reflection metadata.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Brian D. Andrews
Originator: Seth D. Ackerman
Originator: Wayne E. Baldwin
Originator: Walter A. Barnhardt
Publication_Date: 2010
Title:
Geophysical and Sampling Data from the Inner Continental Shelf: Northern Cape Cod Bay, Massachusetts
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2010-1006
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/of/2010/1006/
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20070429
Ending_Date: 20080507
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Andrews and others, 2010
Source_Contribution:
Shallow geologic framework and surficial geology were interpreted from approximately 3270 trackline kilometers of CHIRP seismic-reflection profiles that were collected during two separate U.S. Geological Survey field activities (2007-002-FA and 2008-002-FA). Final, post-processed profiles were used to make the interpretations. Thorough descriptions of acquisition and processing parameters for each survey are provided by Andrews and others (2010) in methods sections and seismic-reflection metadata.
Process_Step:
Process_Description:
CHIRP seismic reflection data were interpreted using Landmark SeisWorks 2D (R5000) seismic interpretation software. Interpretation consisted of identifying and digitizing erosional unconformites defining the boundaries between Holocene, Pleistocene, and pre-Quaternary seismic units, and digitizing the extent over which each of the defined sub-surface seismic units crops out on the seafloor. An isochron representing the two-way travel time between the late-Wisconsinan regressive unconformity and the Holocene transgressive unconformity horizons was computed, then sampled at a 30-meter along track interval and exported from SeisWorks as ASCII text. Awk (no version) was used to convert two-way travel times to thickness in meters using a constant seismic velocity of 1500 m/s.
Process_Date: 2012
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Wayne E. Baldwin
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2226
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov
Process_Step:
Process_Description:
Mass points representing the isopach computed in the previous step were imported into ArcMap (9.3.1) as point features (easting, northing, thickness) using the 'Add XY data' function, then saved as a point shapefile. The new point shapefile was used as the sole input for the ArcMap (9.3.1) Spatial Analyst tool 'Topo to Raster' to create an interpolated grid of the isopach with a 50 meter cell size. A polygon shapefile traced around the input mass-points was used to clip the isochron grid to the limits of the interpreted area using the ArcMap (9.3.1) Spatial Analyst tool 'Extract by Mask'.
Process_Date: 2012
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Wayne E. Baldwin
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2226
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov
Process_Step:
Process_Description:
The ArcMap (9.3.1) 'Raster Calculator' was used to set grid cells with thickness values less than 0.5 meters to null using a SETNULL expression.
Process_Date: 2012
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Wayne E. Baldwin
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2226
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov
Process_Step:
Process_Description:
Edits to the metadata were made to fix any errors that MP v 2.9.30 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). The distribution format was modified in an attempt to be more consistent with other metadata files of the same data format. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent.
Process_Date: 20151119
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description: USGS Thesaurus keywords added to the keyword section.
Process_Date: 20180720
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description: Crossref DOI link was added as the first link in the metadata.
Process_Date: 20191118
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20200908
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 916
Column_Count: 859
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 19
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -69.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 50.000000
Ordinate_Resolution: 50.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Wayne E. Baldwin
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2226
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: AIG
Format_Version_Number: ArcGIS 9.3.1
Format_Specification: Esri Grid
Format_Information_Content:
WinZip (v. 14.5) file contains an Esri Grid (and associated metadata) that defines Holocene fluvial and estuarine (Qfe) sediment thickness on the Massachusetts inner shelf between Nahant and northern Cape Cod Bay.
File_Decompression_Technique: zip
Transfer_Size: 0.5
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions: Data can be downloaded via the World Wide Web (WWW)
Fees: None
Technical_Prerequisites:
The grid contained in the ZIP file is available as an Esri binary grid. To utilize this data, the user must have a GIS software package capable of reading an Esri binary grid.
Metadata_Reference_Information:
Metadata_Date: 20240318
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Wayne E. Baldwin
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2226
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240318)
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None

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