CERCTM54: USACE ICONS Cores, Cape Canaveral, Florida to Georgia

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:

CERCTM54: USACE ICONS Cores, Cape Canaveral, Florida to Georgia

Abstract:

The inner Continental Shelf off eastern Florida between Cape Canaveral and Georgia was surveyed to obtain information on bottom morphology and sediments, subbottom structure, and sand deposits (borrow sites) suitable for restoration and nourishment of nearby beaches. Primary survey data consist of 1,153 statute miles of high-resolution seismic reflection surveys and 197 sediment cores. The major structural trend in the study area shallow subbottom is a broad coastal plain high consisting of truncated strata judged to be of Eocene and Miocene ages. Overlying strata not affected by the high are late Miocene to Holocene in age and are characteriszed by a predominant eastward dip, common occurance of internal bedding features, and filled erosional channels. The Pleistocene and Holocene sediments disconformably overlie late Tertiary sediments which crop out in many places north of St. Augustine, Florida. The dominant lithology of both surficial and shallow subsurface strata is quartz sand. Detrital accessory silicate minerals, carbonates, and phosphorite comprise the remaining 5 to 10 percent of the sediments. Surface exposures and near-surface occurrences of Tertiary unconsolidated quartzose sands are recognized by diagnostic microfauna or dolomite silt matrix. Quaternary sediments are unusually thin and discontinuous. The paucity of recognizable Pleistocene fluvial deposits in this region and the thin nature of the Holocene sand blanket suggests that shelf sands were derived in part from transgressive erosion and that Georgia streams supplied little material to the inner shelf. Sand suitable for beach restoration and maintenance on the adjacent north Florida coast occurs abundantly in places on the inner shelf. Ten potential borrow sites and an additional 21 possible sites have been delineated, each comprising a sand reserve ranging in volume from 5 to 178 million cubic yards, all within 13 nautical miles of the coast. Underlying quartzose Tertiary deposits contain an estimated 100 billion cubic yards of sand. Filled erosional channels in shallow subbottom strata, especially north of Jacksonville, and the occasional occurrence of sinkholes, complicate generalization of foundation conditions. Clays and cohesive sandy silts occur throughout the area in various stratigraphic associations. The character and strength properties of thse fine-grained deposits are variable; however, soft watery clays, usually interbedded with fine sand, are most common in the area from Jacksonville to Georgia.

1. How should this data set be cited?

   Reid, Jamey M. , 2005, CERCTM54: USACE ICONS Cores, Cape Canaveral, Florida to Georgia:, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.

   Online Links:

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -80.91590

   East_Bounding_Coordinate: -81.25180

   North_Bounding_Coordinate: 30.52132

   South_Bounding_Coordinate: 28.36130

3. What does it look like?

   tm54.jpg (JPEG)

   Image map showing extent and distribution of data layer coverage

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

   Calendar_Date: 1975

   Currentness_Reference: publication date

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

   Geospatial_Data_Presentation_Form: document

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 (67)

   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 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.400000.
      The flattening of the ellipsoid used is 1/294.978698.
      

7. How does the data set describe geographic features?

   tm54

   FID

   Internal feature number. (Source: ESRI)

   Sequential unique whole numbers that are automatically generated.

   Shape

   Feature geometry. (Source: ESRI)

   Coordinates defining the features.

   REF_ID

   CORE_ID

   LATITUDE

   LONGITUDE

   Entity_and_Attribute_Overview:

   Sample identifiers, navigation, core descriptions, and grain size statistics form the USACOE ICONS program project from Cape Canaveral to Georgia. Some enries for top and bottom depths were originally reported as "top." In the digital files, "top" was changed and defined as 0-0.02 meters.

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Jamey M. Reid

2. Who also contributed to the data set?

   Pleae review the cross reference information for the original data set credit to Meisburger and Field (1975). Emma Mitchell and Jamey M. Reid for entering the data from the source report.

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

   Jeff Williams
   U.S. Geological Survey
   Geologist
   384 Woods Hole Rd.
   Woods Hole, MA 02543-1598
   

   (508) 548-8700x2383 (voice)
   (508) 457-2310 (FAX)
   jwilliams@usgs.gov
   

The purpose of this datalayer is to release a digital version of the coring data from a U. S. Army Corp of Engineers (USACOE) Inner Continental Shelf (ICONS) program project from Cape Canaveral and Georgia

1. From what previous works were the data drawn?

   USACOE Technical Memorandum 54 (source 1 of 1)

   Meisburger, Edward P., and Field, Michael E, 1975, Geomorphology, shallow structure and sediments of the Florida Inner Continental Shelf, Cape Canaveral to Georgia: Technical Memorandum 54, Department of the Army, Coastal Engineering Research Center (CEREN-GE), Fort Belvoir, VA.

   Type_of_Source_Media: paper

   Source_Contribution:

   Same identifiers, navigation, core descriptios, and grain-size statistics were hand-entered form report TM54 to create an Excel spreadsheet file.

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

   Date: 19-Jun-2002 (process 1 of 2)

   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.

   Person who carried out this activity:
   

   Jamey M. Reid
   U.S. Geological Survey
   IT Specialist (Data Management)
   384 Woods Hole Road
   Woods Hole, MA 02543-1598
   USA
   

   (508) 548-8700 x2204 (voice)
   (508) 457-2310 (FAX)
   jreid@usgs.gov
   

   Data sources used in this process:

   • CERCTM54.xls

   Data sources produced in this process:

   • CERCTM54.txt

   Date: 18-Jun-2004 (process 2 of 2)

   Digital data were hand formatted into dbSEABED data entry structure, then filtered and data-mined through dbSEABED software (version: db9_MNEr.bas)

   Person who carried out this activity:
   

   Viness Ubert
   U.S. Geological Survey
   Physical Science Technician
   384 Woods Hole Road
   Woods Hole, MA 02543-1598
   USA
   

   (508) 548-8700 x2238 (voice)
   (508) 457-2310 (FAX)
   vubert@usgs.gov
   

   Data sources used in this process:

   • CERCTM54.txt

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

   Meisburger, Edward P., and Field, Michael E, 1975, Geomorphology, shallow structure and sediments of the Florida Inner Continental Shelf, Cape Canaveral to Georgia: Technical Memorandum 54, Department of the Army, Coastal Engineering Research Center (CEREN-GE), Fort Belvoir, VA.

1. How well have the observations been checked?

   All attributes were entered and checked by the compilers in a consistent manner.

2. How accurate are the geographic locations?

   navigation was by LORAN C. Typical nonrepetitive accuracy for LORAN off Florida is about +/- 200 meters

3. How accurate are the heights or depths?

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

   Core locations are provided for 20 vibracores; grain size for 67 analyses. There are no descriptions for the 67 analyses.

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

   No additional checks for topological consistency were performed on this data set.

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

Access_Constraints: None

Use_Constraints: None

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

   Jamey M. Reid
   U.S. Geological Survey
   IT Specialist (Data Management
   384 Woods Hole Road
   Woods Hole, MA 02543-1598
   USA
   

   (508) 548-8700 x2204 (voice)
   (508) 457-2310 (FAX)
   jreid@usgs.gov
   

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

   Marine Aggregate Resources and Processes: CERCTM54

3. What legal disclaimers am I supposed to read?

   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

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

     Data format:	ArcView shapefile (version 3.2) ASCII text Size: 0.263

   • Cost to order the data: None

5. What hardware or software do I need in order to use the data set?

   The original data is available in Microsoft Excel or ASCII text format

Dates:

Last modified: 30-Jun-2004
Last Reviewed: 03-Mar-2005

Metadata author:

U.S. Geological Survey
c/o Viness Ubert
Physical Science Technician
384 Woods Hole Road
Woods Hole, MA 02543-1598
USA

(508) 548-8700 x2238 (voice)
(508) 457-2310 (FAX)
vubert@usgs.gov

Metadata standard:

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

Metadata extensions used:

• <http://www.esri.com/metadata/esriprof80.html>