Gas and structure within Pleistocene Channels, Hudson Shelf Valley

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Jane F. Denny
Publication_Date: 2002
Publication_Time: Unknown
Title:
Gas and structure within Pleistocene Channels, Hudson Shelf Valley
Edition: 1
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Woods Hole, MA
Publisher: US Geological Survey
Larger_Work_Citation:
Citation_Information:
Originator: Schwab, William C.
Originator: Denny, Jane F.
Originator: Foster, David S.
Originator: Lotto, Linda L.
Originator: Allison, Mead A.
Originator: Uchupi, Elazar
Originator: Swift, B. Ann
Originator: Danforth, William W.
Originator: Thieler, Robert E.
Originator: Butman, Bradford
Publication_Date: 2002
Title:
High-Resolution Quaternary seismic stratigraphy of the New York Bight Continental Shelf
Geospatial_Data_Presentation_Form:
Maps, remote sensing imagery, tabular digital data, and raster and vector digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: OFR02-152
Publication_Information:
Publication_Place: Woods Hole, MA
Publisher: U.S. Geological Survey
Description:
Abstract:
These data represent gas and structure mapped wtihin two Pleistocene channels, Hudson Shelf Valley. These data were mapped based on 15 cubic inch water gun and CHIRP seismic-reflection records collected May, 1996. See Allison, 1997; Lanier, 1999; Lotto, 2000.
Purpose:
In 1995, the U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers (USACE), began a program to generate reconnaissance maps of the sea floor offshore of the New York - New Jersey metropolitan area and within the southern Long Island nearshoe area. Our methods include high-resolution sidescan sonar and subbottom profiling techniques, along with surface grab and vibracore sampling to verify the geophysical interpretations. The goal of the investigation is to provide a regional synthesis of the sea-floor environment, to determine regional-scale availability of sand as a resource for beach nourishment programs, and to investigate the role that inner-shelf morphology and geologic framework have in the evolution of the coastal region within the New York Bight Apex and southern Long Island. Maps derived from interpretation of the subbottom profiles show information on the geometry and distribution of the Quaternary sediments and the underlying coastal-plain unconformity. This seismic stratigraphy yields a regional framework on which explanations of present (and past) sediment movement, dispersal, and erosion processes are based.

Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19960501
Ending_Date: 19960530
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -74.06
East_Bounding_Coordinate: -71.8000
North_Bounding_Coordinate: 41.26
South_Bounding_Coordinate: 40
Keywords:
Theme:
Theme_Keyword_Thesaurus: Hudson Shelf Valley
Theme_Keyword: Pleistocene channels
Theme_Keyword: Gas
Theme_Keyword: Clinoform
Place:
Place_Keyword_Thesaurus: New York Bight
Place_Keyword: inner-shelf
Place_Keyword: New York
Place_Keyword: Hudson Shelf Valley
Access_Constraints: none
Use_Constraints: none
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jane F. Denny
Contact_Organization: US Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-457-2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@usgs.gov

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
These data are derived from 2D seismic reflection profiles that are spaced approximately 1.3 km apart in the cross track-direction. Shore perpendicular track lines were spaced about 3-4 km apart. Along track samples of the seismic profiles are approximately 1 meter assuming a ship speed of 2 meters/second. The data were downsampled in the along-track direction at an interval of about 30 meters.
Logical_Consistency_Report:
The Pleistocene channels and gas and structure found within these channels, were mapped by Allison(1997) and Lanier(1999).
Completeness_Report: complete
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
DGPS is assumed to be accurate within 1-2 meters. Standard GPS is assumed accurate within 5-10 meters. 99% of the positional data is DGPS. Unless noted, all GPS/DGPS data is referenced to WGS84 (NAD83). The horizontal positioning did not account for source and receiver offsets and offset the GPS antennae and the boomer source and streamer. It is estimated that these offsets could lead to inaccuracies of about 30 m.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Vertical positioning accuracy of the offshore data is based on the seafloor reference used.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Allison, M.A.
Originator: Lotto, L.L
Originator: Buchholtz ten Brink
Originator: Schwab, W.C.
Publication_Date: 1997
Publication_Time: unknown
Title:
Formation and geologic evolution of the Hudson Shelf Valley, New York Bight(abstract):
Edition: 1
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: Geological Society of America, Abstracts with Programs
Issue_Identification: vol.29, p.27
Publication_Information:
Publication_Place: Unknown
Publisher: Geological Society of America
Type_of_Source_Media: map
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19970000
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Hudson Shelf Valley
Source_Contribution:
This reference definees the Pleistocene channels mapped within the Hudson Shelf Valley.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Lanier, D.L
Originator: Allison, M.A.
Originator: Schwab, W.C.
Originator: Thieler, E.R.
Originator: Butman, B.
Publication_Date: 1999
Publication_Time: unknown
Title:
Effects of Holocene transgression on the stratigraphy of the NY Bight inner continental shelf
Edition: 1
Geospatial_Data_Presentation_Form: digital raster data
Series_Information:
Series_Name: American Geophysical Union, Ocean Sciences Meeting Supplement
Issue_Identification: OS203
Publication_Information:
Publication_Place: unknown
Publisher: unknown
Type_of_Source_Media: map
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1999
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Lanier
Source_Contribution:
This reference was used in the interpretation of the Pleistocene channels within the Hudson Shelf Valley.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Lotto, L.L
Publication_Date: 2000
Publication_Time: Unknown
Title:
Seismic stratigrpahy and Quaternary evolution of the New York Bight inner continental shelf: Texas A&M University, unpublished M.S. Thesis, College Station, TX, 79p and 16 sheets.
Edition: 1
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: Masters of Science Thesis
Issue_Identification: unknown
Publication_Information:
Publication_Place: College Station, Texas
Publisher: Texas A&M University
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2000
Source_Currentness_Reference: Publication Date
Source_Citation_Abbreviation: Seismic Stratigraphy of New York Bight
Source_Contribution:
The well log data compiled within this thesis were used to generate a gridded data set of the depth to coastal-plain Unconformity and Quaternary thickness onshore Long Island, NY.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Lanier, D.L
Originator: Allison, M.A.
Publication_Date: 2002
Publication_Time: unknown
Title: rednew
Edition: 1
Geospatial_Data_Presentation_Form: digital vector data
Series_Information:
Series_Name: MapInfo vector file
Issue_Identification: MapInfo vector file
Other_Citation_Details: See Allison, 1999; Lanier, 1997.
Type_of_Source_Media: digital raster grid
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2000
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: MapInfo Pleistocene Channel, r6
Source_Contribution:
This MapInfo vector file contain contours of a Pleistocene channel mapped within the Hudson Shelf Valley based on 15 cubic inch water gun and CHIRP seismic-reflection data, gas and structure wtihin the channels, and gas within an upper seismic facies. The MapInfo file was converted to ArcView vector format. The areas containing gas and structure were extracted and converted to individual ArcView shapefiles for display within ArcView 3.2.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Lanier, D.L.
Originator: Allison, M.A.
Publication_Date: 2002
Publication_Time: unknown
Title: bluenew
Edition: 1
Geospatial_Data_Presentation_Form: digital vector data
Series_Information:
Series_Name: MapInfo vector data
Issue_Identification: MapInfo vector data
Other_Citation_Details: See Allison, 1997; Lanier, 1999.
Type_of_Source_Media: digital raster grid
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2000
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Pleistocene channel, r5
Source_Contribution:
This MapInfo vector file contain contours of a Pleistocene channel mapped within the Hudson Shelf Valley based on 15 cubic inch water gun and CHIRP seismic-reflection data, gas and structure wtihin the channels, and gas within an upper seismic facies. The MapInfo file was converted to ArcView vector format. The areas containing gas and structure were extracted and converted to individual ArcView shapefiles for display within ArcView 3.2.
Process_Step:
Process_Description:
MapInfo vector data, rednew and bluenew, were converted into ArcView 3.2 shapefiles using the Universal Translator within MapInfo 5.5. Polygons within the original files defining the location of gas and structure (clinoforms) within two Pleistocene channels and an upper seismic facies were converted to individual shapefiles:

gasu1_r5, gasu5_r5, gasu1_r6, gasu5_r6, clino_r5, clino_r6.

The nomenclature is as follows:

gasu1 - Gas found in the uppermost, mappable, seismic facies (few meters below sea floor surface).

gasu5 - Gas found within Pleistocene unit, u5.

clino - Clinoforms clearly defined within Pleistocene channel.

r5 - Pleistocene reflector, r5, defining base of upper Pleistocene channel.

r6 - Pleistocene reflector, r6, defining base of lower Pleistocene channel.

Process_Date: 2000
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jane F. Denny
Contact_Organization: US Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-457-2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@usgs.gov

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000089992
Longitude_Resolution: 0.000089992
Geographic_Coordinate_Units: decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: WGS84
Ellipsoid_Name: WGS84
Semi-major_Axis: 6378137.0000000
Denominator_of_Flattening_Ratio: 298.26
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 1
Altitude_Distance_Units: Meters
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates
Depth_System_Definition:
Depth_Datum_Name: Mean sea level
Depth_Resolution: 0.1
Depth_Distance_Units: Meters
Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jane F. Denny
Contact_Organization: US Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-457-2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@usgs.gov
Resource_Description: gas and clinoform definition, HSV
Distribution_Liability:
Altough this data set and its lineage have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or it's related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related items. Users must assume responsibility for the proper use of this data. This data should not be used at resolutions for which it is not intended. This data has no been reviewed for conformity with US Geological Survey editorial standards, or the North American Strigraphic code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the US Government.

Metadata_Reference_Information:
Metadata_Date: 20020119
Metadata_Review_Date: 2002
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jane F. Denny
Contact_Organization: US Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-457-2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None

Generated by mp version 2.7.17 on Fri Apr 12 15:08:03 2002