caco3: Sample Analysis for Calcium Carbonate

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  3. What similar or related data should the user be aware of?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

Title: caco3

Abstract:

This file contains location and carbonate content analysis of samples taken during Cruise No. FERL01052 aboard the NOAA Ship Ferrel. These samples were taken on East and West Flower Garden Banks of the Flower Gardens Bank National Marine Sanctuary between May 28, 2002 and June 3, 2002. The information collected during this cruise is intended for a preliminary geologic interpretation of the surficial sediment distribution in order to determine sites for future sample collection. The interpretations presented in this Open File Report are subject to change with future data acquisition.

1. How should this data set be cited?

   Rozycki, Jill E. , and Scanlon, Kathryn M. , 20020300, caco3:, USGS, Coastal and Marine Geology Program, Woods Hole Field Center, Woods Hole, MA.

   Online Links:

   • <http://pubs.usgs.gov/of/2003/of03-002/>

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -93.933830

   East_Bounding_Coordinate: -93.534000

   North_Bounding_Coordinate: 28.002830

   South_Bounding_Coordinate: 27.789500

3. What does it look like?

4. Does the data set describe conditions during a particular time period?

   Calendar_Date: 2001

   Currentness_Reference: publication date

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: vector digital data

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Entity point (109)

   2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.
      

7. How does the data set describe geographic features?

   caco3

   FID

   Internal feature number. (Source: ESRI)

   Sequential unique whole numbers that are automatically generated.

   Shape

   Feature geometry. (Source: ESRI)

   Coordinates defining the features.

   LAB__

   USGS unique sample identifier - Unique identification number (consisting of 2 characters and 3 numerics) generated in the sedimentation laboratory of the USGS's Woods Hole Field Center for the Atlantic Margin Texture Database (Source: USGS Eastcoast Sediment Texture Database data dictionary)

   SAMPLE_ID_

   Sample name or number as assigned in the field (Source: USGS Eastcoast Sediment Texture Database data dictionary)

   LATITUDE

   Latitude - latitude in decimal degrees (south latitudes are recorded as negative values) (Source: USGS Eastcoast Sediment Texture Database data dictionary)

   LONGITUDE

   Longitude - longitude in decimal degrees (west longitudes are recorded as negative values) (Source: USGS Eastcoast Sediment Texture Database data dictionary)

   ZCACO3

   % CaCO3 - percent calcium carbonate of sample by weight (Source: USGS Eastcoast Sediment Texture Database data dictionary)

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Jill E. Rozycki
   • Kathryn M. Scanlon

2. Who also contributed to the data set?

3. To whom should users address questions about the data?

   Mary Hastings
   U. S. Geological Survey
   Data Specialist
   384 Woods Hole Road
   Woods Hole, MA 02543-1598
   USA
   

   (508) 548-8700 x2289 (voice)
   (508) 457-2310 (FAX)
   phastings@usgs.gov
   

This ArcView shapefile contains the locations of sediment samples collected and analyzed by the U. S. Geological Survey, Woods Hole Field Center starting in May 2001 and ending in December 2001. Distribution of this dataset allows the user the ability to visualize the information in a Geographic Information system.

1. From what previous works were the data drawn?

   Caco3.xls (source 1 of 1)

   Hastings, Mary, 20020300, ast and West Flower Garden Banks Sediment Database: USGS Open-File Report, U. S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Field Center, Woods Hole, MA.

   This is part of the following larger work.

   Scanlon, Kathryn M. , Ackerman, Seth D. , and Rozycki, Jill E. , 2003, Texture, Carbonate Content, and Preliminary Maps of Surficial Sediments of the Flower Garden Banks Area, Northwestern Gulf of Mexico Outer Shelf.: Open-File Report 03-002, U.S. Geological Survey, Woods Hole, MA.

   Online Links:

   • <http://pubs.usgs.gov/of/2003/of03-002/>

   Type_of_Source_Media: Microsoft Excel spreadsheet

   Source_Contribution:

   The Excel spreadsheet contains the available data on calcium carbonate composition for the bottom sediments produced by the USGS, Woods Hole Field Center. The basic structure of the file is a matrix where records are rows representing individual samples and the columns contain information on sample identification, navigation, classifications, analyzed parameters, and comments.

2. How were the data generated, processed, and modified?

   Date: 05-Feb-2002 (process 1 of 1)

   The file caco3.xls was converted to a .dbf file and was imported into ArcView to create a table. This table was then converted to an ArcView shapefile to be used as a GIS layer in the project.

   Person who carried out this activity:
   

   Kathryn M. Scanlon
   U. S. Geological Survey
   Marine Geologist
   384 Woods Hole Road
   Woods Hole, MA 02543-1598
   USA
   

   (508) 548-8700 x2323 (voice)
   (508) 457-2310 (FAX)
   kscanlon@usgs.gov
   

   Data sources used in this process:

   • caco3.xls

   Data sources produced in this process:

   • caco3.dbf
   • ferltxtr.shp
   • ferltxtr.shx
   • ferltxtr.sbn
   • ferltxtr.sbx
   • ferltxtr.avl

3. What similar or related data should the user be aware of?

   , 2003.

   This is part of the following larger work.

   Scanlon, Kathryn M. , Ackerman, Seth D. , and Rozycki, Jill E. , 2003, Texture, Carbonate Content, and Preliminary Maps of Surficial Sediments of the Flower Garden Banks Area, Northwestern Gulf of Mexico Outer Shelf.: Open-File Report 03-002, U.S. Geological Survey, Woods Hole, MA.

   Online Links:

   • <http://pubs.usgs.gov/of/2003/of03-002/>

1. How well have the observations been checked?

2. How accurate are the geographic locations?

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

   This data set is complete inasmuch as it contains the sample information as released in USGS Open-File Report 03-002.

5. How consistent are the relationships among the observations, including topology?

   .

Are there legal restrictions on access or use of the data?

Access_Constraints: None

Use_Constraints:

The U. S. Geological Survey must be referenced as the originator of the dataset in any future products or research derived from these data. Although this derived data set and its 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.

1. Who distributes the data set? (Distributor 1 of 1)

   Kathryn M. Scanlon
   U.S. Geological Survey
   USGS - Woods Hole Field Center
   Woods Hole, MA 02543
   USA
   

   508.548.8700 x2323 (voice)
   508.457.2310 (FAX)
   kscanlon@usgs.gov

2. What's the catalog number I need to order this data set?

   Sed Lab data. Please request from K. Scanlon (kscanlon@usgs.gov)

3. What legal disclaimers am I supposed to read?

4. How can I download or order the data?
   • Availability in digital form:

     Data format:	Sed Lab anaylsis spreadsheet. Size: 0.028

   • Cost to order the data:

Dates:

Last modified: 06-Mar-2003

Metadata author:

Kathryn M. Scanlon
U. S. Geological Survey
Geologist
384 Woods Hole Road
Woods Hole, MA 02543
USA

(508) 548-8700 x2323 (voice)
(508) 457-2310 (FAX)
kscanlon@usgs.gov

Metadata standard:

FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)