Neritic sediments of the Merrimack Embayment (ANAN71 shapefile)

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Frequently anticipated questions:


What does this data set describe?

Title: Neritic sediments of the Merrimack Embayment (ANAN71 shapefile)
Abstract:
The coastal dunes, beaches, and inner neritic zone of the Merrimack Embayment constitute a petrologic province. In addition to heavy mineral analyses, grain size statistics were generated on most of the samples. Neritic and beach sediments can be differentiated using scatter plots of statistics, but statistical parameters are ineffective in differentiating between river and neritic sediments.
  1. How might this data set be cited?
    Poppe, Lawrence J., 2003, Neritic sediments of the Merrimack Embayment (ANAN71 shapefile): Open-File Report 03-001, U. S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Poppe, L.J., Paskevich, V.F., Williams, S.J., Hastings, M.E., Kelly, J.T., Belknap, D.F., Ward, L.G., Fitzgerald, D.M., and Larsen, P.F., 2003, Surficial Sediment Data from the Gulf of Maine, Georges Bank, and vicinity: a GIS Compilation: Open-File Report 03-001, U. S. Geological Survey, Reston, VA.

    Online Links:

    Other_Citation_Details: 1 CD-ROM
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -70.807500
    East_Bounding_Coordinate: -70.654000
    North_Bounding_Coordinate: 42.909100
    South_Bounding_Coordinate: 42.677900
  3. What does it look like?
    http://pubs.usgs.gov/of/2003/of03-001/data/seddata/anan71/anan71-thumb.gif (GIF)
    Thumbnail image showing extent and distribution of data layer coverage.
    http://pubs.usgs.gov/of/2003/of03-001/data/seddata/anan71/anan71.gif (GIF)
    Image map showing extent and distribution of data layer coverage.
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 1971
    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 (118)
    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 0.0001. Longitudes are given to the nearest 0.0001. 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?
    anan71.dbf
    Shapefile Attribute Table (Source: ESRI)
    FID
    Internal feature number. (Source: ESRI) Sequential unique whole numbers that are automatically generated.
    Shape
    Feature geometry. (Source: ESRI) Coordinates defining the features.
    PROJECTID
    Names assigned to dataset for identification purposes. (Source: Compiler)
    ValueDefinition
    ANAN1971Information unavailable from original metadata.
    STATION
    Unique identifiers assigned to each station (Source: Scientist) Station names
    LONGITUDE
    Longitude coordinate of sample location (Source: Scientist)
    Range of values
    Minimum:42.6779
    Maximum:42.9091
    Units:Decimal Degrees
    Resolution:0.0001
    LATITUDE
    Latitude coordinate of sample location (Source: Scientist)
    Range of values
    Minimum:-70.8075
    Maximum:-70.6540
    Units:Decimal Degrees
    Resolution:0.0001
    DEVICE
    Equipment used to collect samples (Source: Scientist)
    ValueDefinition
    GRABInformation unavailable from original metadata.
    MEAN_PHI
    Mean determined by graphicsal statistics (Source: Scientist)
    Range of values
    Minimum:0.118
    Maximum:3.751
    Units:phi
    Resolution:0.001
    STDDEV_PHI
    Standard deviation determined by graphical statistics (Source: Scientist)
    Range of values
    Minimum:0.288
    Maximum:1.055
    Units:phi
    Resolution:0.001
    SKEWNESS
    Skewness determined by graphical statistics (Source: Scientist)
    Range of values
    Minimum:-0.195
    Maximum:0.626
    Resolution:0.001
    KURTOSIS
    Kurtosis (peakedness) determined by graphical statistics (Source: Scientist)
    Range of values
    Minimum:0.746
    Maximum:1.922
    Resolution:0.001
    LITHOLOGY
    Textural description of the sediment (Source: Compiler) Verbal descriptions of the sediment

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Lawrence J. Poppe
  2. Who also contributed to the data set?
    Please review the cross reference information for the original data set credit to Anan (1971), Polly Hastings for digitizing the sampe locations, and Larry Poppe for entering the data from the source report and creating the ArcView shapefile.
  3. To whom should users address questions about the data?
    Lawrence J. Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    (508) 457-2310 (FAX)
    lpoppe@usgs.gov

Why was the data set created?

The purpose of this data layer is to release a digital version of the textural descriptions published by Anan (1971).

How was the data set created?

  1. From what previous works were the data drawn?
    Information unavailable from original metadata. (source 1 of 1)
    Anan, F.S., 1971, Provenance and Statistical Parameters of Sediments of the Merrimack Embayment, Gulf of Maine: University of Massachusetts, Amherst, MA.

    Other_Citation_Details: Doctoral Dissertation, 377 p.
    Type_of_Source_Media: paper
    Source_Contribution: Information unavailable from original metadata.
  2. How were the data generated, processed, and modified?
    Date: 22-Oct-2002 (process 1 of 5)
    Stations were digitized off maps, textural data entered into digital form, and together were imported from an ASCII text file to an ArcView table. The table was later converted to an event theme and saved as the final shapefile. Person who carried out this activity:
    Lawrence J. Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    (508) 457-2310 (FAX)
    lpoppe@usgs.gov
    Data sources used in this process:
    • anan71.txt
    Data sources produced in this process:
    • anan71.shp
    • anan71.dbf
    • anan71.shx
    Date: 30-Nov-2015 (process 2 of 5)
    Edits to the metadata were made to fix any errors that MP v 2.9.30 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Rd.
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 20-Jul-2018 (process 3 of 5)
    USGS Thesaurus keywords added to the keyword section. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 18-Nov-2019 (process 4 of 5)
    Crossref DOI link was added as the first link in the metadata. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 23-Sep-2021 (process 5 of 5)
    Added keywords section with USGS persistent identifier as theme keyword, 20200908. Fixed an originator name, 20210923. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?
    Anan, F.S., 1971, Provenance and Statistical Parameters of Sediments of the Merrimack Embayment, Gulf of Maine: Doctoral Dissertation 377 p., University of Massachusetts, Amherst, MA.


How reliable are the data; what problems remain in the data set?

  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 sighting three shore-based objects with sextants. Navigational accuracy is unknown.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    Navigation, statistical parameters, and sample identifiers are provided for 118 stations.
  5. How consistent are the relationships among the observations, including topology?
    No additional checks for topological consistency were performed on this data.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None
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.
  1. Who distributes the data set? (Distributor 1 of 1)
    Lawrence J. Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    (508) 457-2310 (FAX)
    lpoppe@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable Data
  3. What legal disclaimers am I supposed to read?
    Although these data have been used by the U.S. Geological Survey (USGS), U.S. Department of the Interior (DOI), 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 USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.

Who wrote the metadata?

Dates:
Last modified: 16-Nov-2021
Metadata author:
Lawrence J. Poppe
U.S. Geological Survey
Geologist
384 Woods Hole Road
Woods Hole, MA
USA

(508) 548-8700 x2314 (voice)
(508) 457-2310 (FAX)
whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid.
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/open_file_report/ofr2003-001/anan71.shp.faq.html>
Generated by mp version 2.9.50 on Tue Nov 16 10:06:29 2021