CERCTP 76_2: USACE ICONS Cores, Long Island South Shore

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Jamey M. Reid
Publication_Date: 2005
Title: CERCTP 76_2: USACE ICONS Cores, Long Island South Shore
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Data Series
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage:
Description:
Abstract:
About 800 square miles of the Atlantic Inner Continental Shelf off Long Island, New York, were studied by CERC to obtain information on the sea floor morphology, sediment distribution, and shallow subbottom stratigraphy and structure. This information is used for delineating sand and gravel resources and deciphering shelf geologic history. Basic survey data by CERC consist of 735 miles of high-resolution continuous seismic profiles and 70 vibratory cores; additional data were available from 82 sediment cores and 225 miles of seismic records. Data coverage extends from Atlantic Beach east to Montauk and Gardiners Bay; and from the shoreface seaward about 10 miles to water depths of 105 feet. Three primary acoustic horizons are evident on the seismic profiles and have been identified by correlation with cores, land borings, and surface exposures of the reflectors. Granitic bedrock is the oldest and deepest horizon underlying Long Island, but its recognition on the seismic records, due to limited subbotom penetration, is confined to northern Gardiners Bay. The bedrock surface slopes southeast and exhibits considerable relief where glacial ice has enlarged pre-Pleistocene drainage channels. Upper Cretaceous and Tertiary semiconsolidated clastic sediments overlie the bedrock and dip and thicken to the southeast. The surfaces of these strata, which are present throughout the study area and project north under Long Island, are the second major horizon. The third seismic horizon is a Pleistocene erosion surface cut by fluvial and glacial agents into the older rock units. Depth of this surface varies from -50 to -300 feet MSL off the western and eastern Long Island Shelf to sea floor outcropping in parts of the central Long Island inner shelf. Pleistocene detritus consists primarily of blanketlike deposits of outwash sand and gravel; however, radiocarbon dates show that Holocene - age barrier - lagoonal sequences and estuarine sediments cover parts of the Long Island Shelf. Surficial sediments on the inner shelf are primarily fine to medium quartz sand with secondary occurrences of coarse sand and pea gravel on the Atlantic shelf and silt-clay mixtures in the Gardiners Bay region. The granular facies are relict outwash detritus, carried onto the shelf by ancient rivers and washed and sorted by marine processes since the Holocene rise of sea level. Fine-grained sediments on the shelf originated in early Holocene back-barrier or lacustrine environments; however, those in Gardiners Bay are estuarine or lacustrine deposits from Pleistocene lakes which occupied that region. Glauconitic sands, restricted to a zone off Fire Island Inlet, appear to be residual from the underlying Monmouth Group which, along with other Cretaceous strata, form a cuesta where strata are truncated by the sea floor. Numerous major buried ancestral drainage channels transect Long Island mainland in a north-shore orientation and continue south across the shelf. Thalweg depths of the channels range from -100 to -550 feet MSL and channel widths are often several miles. Many channels on the north shore of Long Island underlie reentrant bays and most were significantly enlarged by Pleistocene glacial ice and later filled with sediment. Much of the surficial sand on the inner shelf is suitable as fill for beach restoration, except for that of the shoreface region (0 to -30 feet MSL) which contains fine sand and that of major parts of Gardiners Bay which contain organic-rich silt and clay. Topographic highs on the sea floor in the form of linear shoals, and broad deltalike platforms in eastern Long Island appear most suitable for sand recovery. The sea floor in most potential borrow areas is flat and sand occurs as blanket deposits. Potential sand reserves within about 12 feet of the sea floor in the region are estimated to be more than 8 billion cubic yards.
Purpose:
The purpose of this datalyer is to release a digital version of the coring data from a U.S. Army Corps of Engineers (USACOE) Inner Continental Shelf (ICONS) program project off Long Island, New York
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1976
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -73.660630
East_Bounding_Coordinate: -71.845000
North_Bounding_Coordinate: 41.167850
South_Bounding_Coordinate: 40.440410
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: Woods Hole Science Center
Theme_Keyword: USACE
Theme_Keyword: U.S. Army Corps of Engineers
Theme_Keyword: Coastal Engineering and Research Center
Theme_Keyword: cores
Theme_Keyword: ICONS
Theme_Keyword: vibracores
Theme_Keyword: navigation
Theme_Keyword: descriptions
Theme_Keyword: grain size
Theme_Keyword: sediment
Theme_Keyword: gravel
Theme_Keyword: sand
Theme_Keyword: silt
Theme_Keyword: clay
Theme_Keyword: Marine Aggregates Resources and Processes
Theme_Keyword: usSEABED
Theme_Keyword: dbSEABED
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: New York
Place_Keyword: Long Island south shore
Place_Keyword: Long Island
Place_Keyword: Mid-Atlantic
Place_Keyword: continental shelf
Place_Keyword: Atlantic
Place_Keyword: NY Bight
Place_Keyword: Nassau County
Place_Keyword: Suffolk County
Place_Keyword: Tobay Beach
Place_Keyword: Cedar Beach
Access_Constraints: None
Use_Constraints: None
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jeff Williams
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2383
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: jwilliams@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: tp762.jpg
Browse_Graphic_File_Description:
Image map showing extent and distribution of data layer coverage
Browse_Graphic_File_Type: JPEG
Data_Set_Credit:
Pleae review the cross reference information for the original data set credit to Williams (1976). Jamey Reid for entering the data for the source report.
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 8.3.0.800
Cross_Reference:
Citation_Information:
Originator: S. Jeffress Williams
Publication_Date: 1976
Title:
Geomorphology, shallow subbottom structure, and sediments of the Atlantic inner continental shelf off Long Island, New York
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Technical Paper
Issue_Identification: No. 76_2
Publication_Information:
Publication_Place: Fort Belvoir, VA
Publisher: USACOE, Coastal Engineering and Research Center

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
All attributes were entered and checked by the compilers in a consistent manner.
Logical_Consistency_Report:
No additional check for topological consistency were performed on this data set.
Completeness_Report:
Core locations and descriptions are provided for 152 vibracores with unique field ids; grain size statistics are provided for 267 analyses.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Navigation was by LORAN C. Typical nonrepetitive accuracy off Long Island is about +/- 200 meters.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 200
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: Tides are less than 2 meters.
Quantitative_Vertical_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy_Value: 2
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: S. Jeffress Williams
Publication_Date: 1976
Title:
Geomorphology, Shallow Subbottom Structure, and Sediments of the Atlantic Inner Continental Shelf off Long Island, New York
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Technical Paper
Issue_Identification: No. 76-2
Publication_Information:
Publication_Place: Fort Belvoir, VA
Publisher: USACOE Coastal Engineering and Research Center
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1976
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: USACOE Technical Paper 76-2
Source_Contribution:
Sample identifiers, navigation, core descriptions, and grain-size statistics were hand-entered from report TP76-2 to create an Excel spreadsheet file.
Process_Step:
Process_Description:
The source information was entered into an Excel spreadsheet. Additional fields were added for project identification purposes. The table information was exported and saved as an ASCII text file.
Source_Used_Citation_Abbreviation: tp76_2.xls
Process_Date: 20020618
Source_Produced_Citation_Abbreviation: tp76_2.txt
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jamey Reid
Contact_Organization: U.S. Geological Survey
Contact_Position: IT Specialist (Data Management)
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2204
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: jreid@usgs.gov
Process_Step:
Process_Description:
Digital data were hand formatted into dbSEABED data entry structure, then filtered and data-mined through dbSEABED software (version: db9_MNEs.bas)
Source_Used_Citation_Abbreviation: tp76_2.txt
Process_Date: 20020628
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jamey Reid
Contact_Organization: U.S. Geological Survey
Contact_Position: IT Specialist (Data Management)
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2204
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: jreid@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: Entity point
Point_and_Vector_Object_Count: 131

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.00001
Longitude_Resolution: 0.0001
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.400000
Denominator_of_Flattening_Ratio: 294.978698

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: tp76_2.dbf
Entity_Type_Definition: Shapefile Attribute Table
Entity_Type_Definition_Source: ESRI
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: REFERENCE_
Attribute:
Attribute_Label: LATITUDE
Attribute:
Attribute_Label: LONGITUDE
Overview_Description:
Entity_and_Attribute_Overview:
Sample identifiers, navigation, core descriptions, and grain size statistics from the USACOE ICONS program project off the south shore of Long Island.

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jamey Reid
Contact_Organization: U.S. Geological Survey
Contact_Position: IT Specialist (Data Management)
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2204
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: jreid@usgs.gov
Resource_Description: Marine Aggregates Resources and Processes: tp76_2.shp
Distribution_Liability:
Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or 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 materials. Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ArcView shapefile
Format_Version_Number: 3.2
Format_Specification: ESRI point shapefile
File_Decompression_Technique: no compression applied
Transfer_Size: 0.142
Fees: None
Technical_Prerequisites: The original data is available in ASCII text format
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2002

Metadata_Reference_Information:
Metadata_Date: 20050420
Metadata_Review_Date: 20050503
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jamey Reid
Contact_Organization: U.S. Geological Survey
Contact_Position: IT Specialist (Data Management)
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2204
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: jreid@usgs.gov
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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Generated by mp version 2.7.33 on Wed May 25 13:37:11 2005