Abstract: "The USGS/WHOI Continental Margin (CONMAR) Data set was compiled by the U.S. Geological Survey and the Woods Hole Oceanographic Institution as a joint program of study of the Atlantic continental margin of the US. The CONMAR set contains information for 3,715 cores, dredges, and grab samples, and consists of 20 files of grain size analyses/statistical parameters, composition of clay, sand, gravel and carbonate fractions, organic contents, heavy mineral and x-ray analyses, radioactivity counts, and major chemical and trace-element analyses. "
Purpose: The purpose of this data layer is to release a digital version of the coring data from the Continental Margin Program and for inclusion in the usSEABED data collection.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1971
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -81.976000
East_Bounding_Coordinate: -65.000000
North_Bounding_Coordinate: 46.086670
South_Bounding_Coordinate: 24.166670
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: analyses
Theme_Keyword: CMGP
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: dbSEABED
Theme_Keyword: grain size
Theme_Keyword: Marine Aggregates Resources and Processes
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.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Lawrence J. Poppe
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
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2314
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: lpoppe@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: conmar.jpg
Browse_Graphic_File_Description: Image map showing extent and distribution of data layer coverage
Browse_Graphic_File_Type: JPEG
Data_Set_Credit: Polly Hastings for converting the original line data into Excel format.
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: John C. Hathaway
Publication_Date: 1971
Title: Data file Continental Margin Program Atlantic Coast of the United States
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Technical Report
Issue_Identification: 71-15
Publication_Information:
Publication_Place: Woods Hole, MA
Publisher: Woods Hole Oceanographic Institution
Other_Citation_Details: In cooperation with the U.S. Geological Survey
Cross_Reference:
Citation_Information:
Originator: National Geophysical Data Center, World Data Center for Marine Geology & Geophysics
Title: USGS Continental Margin (CONMAR) Sediment File, NGDC Data Set G00253
Geospatial_Data_Presentation_Form: tabular digital data
Completeness_Report: Data from the original study with WHOI on the Continental Margin (WHOI Technical Report 71-15) was released to National Geophysical Data Center* ( NGDC) in card format. This includes texture, chemistry, mineralogy, oceanographic data, etc. The sample numbers in group 1 are a letter followed by 3 digits; the samples in group 2 are 4 digits. There were also photographs collected at this time which were released on OFR01-154. (*Note that lines 600 and 620 (gravel analysis) were somehow corrupt). NGDC is the only place the entire ConMar data set has been released in digital format. ~1994: J. Hathaway released on the web all the texture data which was available. The East Coast Sediment Texture Database (ECSTDB) at that time was comprised of data organized in 3 groups: groups 1 and 2 were from the ConMar study mentioned above. Group 3 was data analyzed in the lab here in Woods Hole. Group 3 sample numbers run from AA001 to AJ523. OFR00-358 is an updated release of the ECSTDB. It again contains the ConMar data as well as the data analyzed in Woods Hole. The sample numbers in the ECSTDB now run from AA001 to AQ841. All the fields relating to data specific to the ConMar project (ie Secchi, Forel, #photos) were eliminated.
Lineage:
Process_Step:
Process_Description: The line data from the ConMar set was converted to Excel.
Process_Description: Digital data were hand formatted into dbSEABED data entry structure, then filtered and data-mined through dbSEABED software (version: db9_MNEs.bas)
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Chris Jenkins
Contact_Organization: Institute of Arctic & Alpine Research (INSTAAR) Univeristy of Colorado at Boulder
