MCCUL85 - location and description of dredge samples from Monterey Bay

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:

MCCUL85 - location and description of dredge samples from Monterey Bay

Abstract:

MCCUL85 contains tracks and descriptions of samples dredged from the Monterey Bay area.

This is one of a collection of digital files of a geographic information system of spatially referenced data related to the USGS Coastal and Marine Geology Program "Monterey Bay National Marine Sanctuary Project" <http://walrus.wr.usgs.gov/mbms>. The data were collected and analyzed between 1994 and 2000.

1. How should this data set be cited?

   McCulloch, D.S., Utter, P.A., Menack, J.S., and Wong, Florence L. , 2001, MCCUL85 - location and description of dredge samples from Monterey Bay:.

   Online Links:

   • <http://geopubs.wr.usgs.gov/open-file/of01-179>

   This is part of the following larger work.

   Wong, F.L., and Eittreim, S.E., 2001, Continental Shelf GIS for the Monterey Bay National Marine Sanctuary: U.S. Geological Survey Open-File Report 01-179, U.S. Geological Survey, Menlo Park, CA.

   Online Links:

   • <http://geopubs.wr.usgs.gov/open-file/of01-179/>

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -122.43041888

   East_Bounding_Coordinate: -121.81774417

   North_Bounding_Coordinate: 36.90828273

   South_Bounding_Coordinate: 36.31725481

3. What does it look like?

   <http://geopubs.wr.usgs.gov/open-file/of01-179/images/splprev.gif> (GIF)

   location map of mccul85

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

   Calendar_Date: 1985

   Currentness_Reference: Ground Condition

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

   Geospatial_Data_Presentation_Form: map

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):

      • String (48)

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

      Grid_Coordinate_System_Name: Universal Transverse Mercator

      Universal_Transverse_Mercator:

      UTM_Zone_Number: 10

      Transverse_Mercator:

      Scale_Factor_at_Central_Meridian: 0.9996

      Longitude_of_Central_Meridian: -123.00000

      Latitude_of_Projection_Origin: 0.00000

      False_Easting: 500000.00

      False_Northing: 0.00

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 6.507536157172
      Ordinates (y-coordinates) are specified to the nearest 6.507536157172
      Planar coordinates are specified in Meters

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is GRS1980.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257.
      

7. How does the data set describe geographic features?

   Entity_and_Attribute_Overview:

   MCCUL85.AAT is the arc attribute table with the following attributes. Latitude and longitude are in decimal degrees.

   
   LON1       longitude of start of dredge
   LAT1       latitude of start of dredge
   LON2       longitude of end of dredge
   LAT2       latitude of end of dredge
   DEPTH1     water depth (meters) at start of dredge
   DEPTH2     water depth (meters) at end of dredge
   LITHOLOGY  sample contents, for example "granodiorite"
   LITHKEY    abbreviation of LITHOLOGY for plotting
                cg  conglomerate
                cl  claystone
                do  dolomite
                gd  granodiorite
                gr  granite
                gv  gravel
                ls  limestone
                md  mudstone
                ms  metasedimentary rock
                sl  siltstone
                ss  sandstone
                vo  volcanic
   AGE        age, formation name, for example "Pliocene; Purisima formation"
   AGEKEY     abbreviation of AGE field for plotting
                Mm middle Miocene, P Pliocene, n.d. not determined
   SPL_NO     sample identity
                ANTI  R/V Melville, 1970, unpub.
                CA    R/V Cayuse, 1979
                C CB LS M MB MBC MF N S, 1969-1971, Greene (1977)
   SPL_TYPE   except for one "grab", all "dredge"
   
   
   

   Entity_and_Attribute_Detail_Citation: none

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • McCulloch, D.S.
   • Utter, P.A.
   • Menack, J.S.
   • Florence L. Wong

2. Who also contributed to the data set?

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

   Florence L. Wong
   United States Geological Survey (USGS)
   Geologist, GIS Coordinator
   USGS, MailStop 999, 345 Middlefield Road
   Menlo Park, CA 94025-3561
   USA
   

   (650) 329-5327 (voice)
   (650) 329-5190 (FAX)
   fwong@usgs.gov
   

These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information about the shallower areas of the Monterey Bay National Marine Sanctuary.

1. From what previous works were the data drawn?

   Greene (1977) (source 1 of 2)

   Greene, H.G., 1977, Geology of the Monterey Bay region: U.S. Geological Survey Open-file Report OF 77-718, 347 p..

   Type_of_Source_Media: paper

   Source_Contribution: samples

   McCulloch and others (1985) (source 2 of 2)

   McCulloch, D.S., Utter, P.A., and Menack, J.S., 1985, Maps showing locations of selected pre-Quaternary rock samples from 34 degrees 30' North latitude to 42 degrees North latitude, California continental margin: U.S. Geological Survey Miscellaneous Field Studies Map MF-1719, p. (4 sheets).

   Type_of_Source_Media: paper

   Source_Scale_Denominator: 250000

   Source_Contribution: sample locations and descriptions

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

   Date: 1999 (process 1 of 2)

   Start and end of dredge tracks and sample descriptions were transcribed from McCulloch and others (1985) and converted to an ArcInfo line coverage.

   Date: 03-Apr-2001 (process 2 of 2)

   First draft of metadata created by F.L. Wong using a modified version of FGDCMETA.AML on ARC/INFO data set MCCUL85

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

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?

   Complete

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

   Chain-node topology present.

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

Access_Constraints:

None

Use_Constraints:

Please recognize the U.S. Geological Survey (USGS) as the source of this information.

Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data.

The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials.

This information is not intended for navigational purposes.

Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

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

   United States Geological Survey (USGS)
   c/o Florence L. Wong
   Geologist, GIS Coordinator
   USGS, MailStop 999, 345 Middlefield Road
   Menlo Park, CA 94025-3561
   USA
   

   (650) 329-5327 (voice)
   (650) 329-5190 (FAX)
   fwong@usgs.gov
   

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

   USGS Open-File Report 01-179

3. What legal disclaimers am I supposed to read?

   Please recognize the U.S. Geological Survey (USGS) as the source of this information.

   Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data.

   Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

   The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials.

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

     Data format:	dredge samples with attributes in format ArcInfo (version 8.0.2) Size: 0.02 megabytes
     Network links:	<http://geopubs.wr.usgs.gov/open-file/of01-179/>

   • Cost to order the data: none

Dates:

Last modified: 03-Apr-2001
Last Reviewed: May-2001

Metadata author:

United States Geological Survey (USGS)
c/o Florence L. Wong
Geologist, GIS Coordinator
USGS, MailStop 999, 345 Middlefield Road
Menlo Park, CA 94025-3561
USA

(650) 329-5327 (voice)
(650) 329-5190 (FAX)
fwong@usgs.gov

Metadata standard:

Content Standard for Digital Geospatial Metadata ("CSDGM version 2") (FGDC-STD-001-1998)