This ArcView GIS layer contains a summary of the locations, depths, and
lengths of the cores collected aboard the R/V FARNELLA 90-4 cruise from
12 -26 April 1990. The cores were collected from the Gulf of Mexico, Mississippi
Fan area.
Purpose:
This GIS overlay is a component of the U. S Geological Survey, Woods Hole
Field Center's, Gulf of Mexico ArcView GIS database. The Gulf of Mexico
GIS database is intended to organize and display USGS held data and provide
on-line (WWW) access to the data and/or metadata.
Supplemental_Information:
R/V FARNELLA 90-4 core information is available in three 1) individual
ArcView shapefile, 2) Microsoft Excel spreadsheet; and 3) a column formatted
ASCII text file.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19900412
Ending_Date: 19900426
Currentness_Reference: Publication Date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -86.4527
East_Bounding_Coordinate: -84.6444
North_Bounding_Coordinate: 26.7566
South_Bounding_Coordinate: 25.2562
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Woods Hole Field Center
Theme_Keyword: Gulf of Mexico database
Theme_Keyword: ArcView
Theme_Keyword: arcview
Theme_Keyword: shapefile
Theme_Keyword: multipoint
Theme_Keyword: Exclusive Economic Zone
Theme_Keyword: EEZ
Theme_Keyword: cores
Theme_Keyword: samples
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: Gulf of Mexico
Place_Keyword: Mississippi Fan
Access_Constraints: None
Use_Constraints:
Although this derived data set and it's lineage dataset 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 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.
The U.S. Geological Survey must be referenced as the originator of the
dataset in any future products or research derived from these data.
Browse_Graphic_File_Type: core locations displayed over SeaMARC
1A sidescan sonar mosaic
Native_Data_Set_Environment:
ArcView version 3.2 shapefile format - data\cores\cores.shp
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: No report.
Logical_Consistency_Report:
No additional checks for topological consistency were performed on this
data set.
Completeness_Report:
Core sample information is complete for the entire R/V FARNELLA 90-4 cruise.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: David Twichell(comp.)
Publication_Date: Unknown
Publication_Time: Unknown
Title: R/V FARNELLA 90-3 & 90-4 cruise report
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19900412
Ending_Date: 19900426
Source_Currentness_Reference: Publication Date
Source_Citation_Abbreviation: farn90-3_4.txt
Source_Contribution:
An ASCII text file listing the core id's, position, depth and length was
attached to the R/V FARNELLA 90-3 & 90-4 post-cruise report. The text
file was editted to create a tabular list that was read into ArcView.
Process_Step:
Process_Description:
An ASCII text file listing the core id's, position, depth and length was
attached to the R/V FARNELLA 90-3 & 90-4 post-cruise report. The text
file was editted to create a tabular list that was read into ArcView. Minor
editting was done to the table for consistency. A final field, DESC, was
added and provides a link to GIF images containing an overview description
of some of the cores.
A new field, HTMLlink, was added to the cores.dbf file. This field was
edited to include the relative path and filename of the visual description
for specific cores. This field is used as a hotlink in the windows arcview
project file to open the core description in the web browser.
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: cores.dbf
Entity_Type_Definition: Shapefile Attribute Table
Entity_Type_Definition_Source: None
Attribute:
Attribute_Label: Coreid
Attribute_Definition:
Unique identifier assigned to collected core in the field. The core identifier
is comprised of two 1) either PC for piston core or GC for gravity cores
or GEOTECH for cores collected for geotechnical analysis; and 2) a sequential
numeric identifier.
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Unrepresentable_Domain: Character Field
Attribute:
Attribute_Label: Lat
Attribute_Definition:
Latitude coordinate in decimal degrees of core location. South latitude
recorded as a negative value.
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Unrepresentable_Domain: Character Field
Attribute:
Attribute_Label: Lon
Attribute_Definition:
Longitude coordinate in decimal degrees of core location. West longitude
recorded as a negative value.
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Unrepresentable_Domain: Character Field
Attribute:
Attribute_Label: Depth
Attribute_Definition: Measured water depth, in meters, at core location.
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3060
Range_Domain_Maximum: 3410
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Desc
Attribute_Definition:
Relative pathname to the summary description. The description is stored
as a GIF file. This column of the attributes table is intended to be used
as a hotlink hyperlink in ArcView.
Attribute_Definition_Source: User Defined
Attribute_Domain_Values:
Unrepresentable_Domain: Character Field
Attribute:
Attribute_Label: HTMLlink
Attribute_Definition:
Relative pathname to the HTML visual description page for the cores that
were described. This column of the attributes table is intended to be used
as a hotlink in the windows ArcView project. The link will open the core
description in the user's default web browser.
Although this derived data set and it's lineage dataset 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 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.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCV
Format_Information_Content:
cores.dbf
cores.shp
cores.shx
File_Decompression_Technique: No compression applied
Transfer_Size: 18Kbytes
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Capacity:
Recording_Density: 650
Recording_Density_Units: Mbytes
Recording_Format: ISO 9600
Compatibility_Information:
The user must have a system with a CD-ROM capable of reading an ISO-9660
standard CD-ROM disk. To browse the information contained on this disk,
the user must also have a current version of WWW browser available.
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCV
Format_Information_Content:
The three ArcView shapefiles (cores.dbf, cores.shp, cores.shx) comprising
the R/V FARNELLA 90-4 core location coverage.
File_Decompression_Technique: zip
Transfer_Size: 4Kbytes
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Capacity:
Recording_Density: 650
Recording_Density_Units: Mbytes
Recording_Format: ISO 9600
Compatibility_Information:
The user must have a system with a CD-ROM capable of reading an ISO-9660
standard CD-ROM disk. To browse the information contained on this disk,
the user must also have a current version of WWW browser available. The
user must also have the software installed on their computer system capable
to unzip the archived file.
Digital_Form:
Digital_Transfer_Information:
Format_Name: Excel
Format_Information_Content: Microsoft Excel spreadsheet
Transfer_Size: 407Kbytes
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Capacity:
Recording_Density: 650
Recording_Density_Units: Mbytes
Recording_Format: ISO 9600
Compatibility_Information:
In addition to software capable of reading or importing the file in the
Microsoft Excel format, the user must have a system with a CD-ROM capable
of reading an ISO-9660 standard CD-ROM disk. To browse the information
contained on this disk, the user must also have a current version of WWW
browser available.
Fees: none
Technical_Prerequisites:
The R/V FARNELLA 90-4 core location overlay is available in an ArcView
shapefile format. The user must have ESRI's ArcView 3.0 or greater software
to read and process the data file. In lieu of Arcview, the user may utilize
another GIS application package capable of importing the data.
