St. Petersburg Coastal and Marine Science Center's Geologic Core and Sample Database

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Frequently anticipated questions:


What does this data set describe?

Title:
St. Petersburg Coastal and Marine Science Center's Geologic Core and Sample Database
Abstract:
This database contains a comprehensive inventory of geologic (coral, coral reef, limestone, and sediment) cores and samples collected, analyzed, published, and/or archived by, or in collaboration with, the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC). The SPCMSC Geologic Core and Sample Database includes geologic cores and samples collected beginning in the 1970s to present day, from study sites across the world. This database captures metadata about samples throughout the USGS Science Data Lifecycle: including field collection, laboratory analysis, publication of research, and archival or deaccession. For more information about the USGS Science Data Lifecycle, see USGS Open-File Report 2013-1265 (https://doi.org/10.3133/ofr20131265). The SPCMSC Geologic Core and Sample Database also includes storage locations for physical samples and cores archived in a repository (USGS SPCMSC or elsewhere, if known). The majority of the samples and cores in this database come from field activities associated with the SPCMSC and have been assigned a field activity number (FAN) in the field activity management and data inventory tool for USGS Coastal and Marine Hazards and Resources Program (CMHRP) Coastal and Marine Geoscience Data System (CMGDS), https://cmgds.marine.usgs.gov/. Some cores and samples were retroactively assigned FANs based on existing metadata and published information. Cores and samples without FANs indicate there is insufficient information regarding collection of the core(s) or sample(s) needed in order to assign a field activity number in CMGDS. Please see the supplemental information section of the metadata for more information about FANs. All samples and cores contained in this database are described in published research. The database contains a link to the FAN page within the CMGDS for each sample or core where associated publications can be accessed. For a complete list of fields used in this database, please refer to the entity and attribute information section of this metadata record.
Supplemental_Information:
Field activity numbers (FANs) are data collection events carried out by, or in collaboration with, the USGS Coastal and Marine Hazards and Resources Program (CMHRP). Each FAN is a unique number given to data collected during a field activity. There are two common formats used for a FAN. The first is: ##XXX##. The first two digits represent the year the data were collected. The third through fifth digits represent the project identification information, coded by the USGS to be unique to each project. The last two digits represent the number of field activities in that year under that project code. The second format for a FAN is: ####-###-FA. The first four digits represent the year the data were collected and the second, 3-digit set represents numbers assigned to a specific USGS center (for example, USGS SPCMSC numbers begin at 300). FANs are publicly accessible via the USGS Coastal and Marine Geoscience Data System (CMGDS). To view field activity details for any of the samples included in this database, CMGDS can be used to look up the FANs, by replacing the FAN (2020-301-FA) in the following URL: https://cmgds.marine.usgs.gov/fan_info.php?fan=2020-301-FA.
  1. How might this data set be cited?
    Reich, Chris, Flocks, James, Dadisman, Shawn, Schreppel, Heather, Smith, Kathryn, Tiling-Range, Ginger, Douglas, Steven, Stalk, Chelsea, Williams, Breanna, Toth, Lauren, and Stathakopoulos, Anastasios, 20130725, St. Petersburg Coastal and Marine Science Center's Geologic Core and Sample Database.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -124.046882
    East_Bounding_Coordinate: 162.250000
    North_Bounding_Coordinate: 46.740893
    South_Bounding_Coordinate: -3.272100
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 07-Sep-1974
    Ending_Date: 10-Feb-2020
    Currentness_Reference:
    field collection date
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: tabular 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 (6344)
    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 8.98315284119521e-009. Longitudes are given to the nearest 8.98315284119521e-009. Latitude and longitude values are specified in Decimal Degrees. The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257223563.
  7. How does the data set describe geographic features?
    SPCMSC_samples_database
    A comprehensive inventory of geologic (coral, coral reef, limestone, and sediment) cores and samples collected, analyzed, published, and/or archived by, or in collaboration with, USGS SPCMSC. Fields in this database include, but are not limited to: sample identification, field activity number, sample type, sampling device, site name, collection date, associated publications, types of conducted analysis(es), geographic location (latitude/longitude), collection time, collecting agency, name(s) and contact information, sample disposition, storage location, and additional notes. Please read the entity and attribute information section below for the complete list and explanation of fields in this database. (Source: USGS)
    objectid*
    Internal feature number. (Source: Esri) Sequential unique whole numbers that are automatically generated. *Only in ArcGIS geodatabase or shapefiles (.shp).
    pk_id
    Unique identifier number. (Source: USGS) Sequential unique whole numbers (starting at 1) assigned to each sample or core upon database accession by USGS SPCMSC.
    field_activity_id
    The field activity number of the sample collection. Blanks in this field indicate there is insufficient information regarding collection of the cores(s) or sample(s) needed in order to assign a field activity number in CMGDS. (Source: USGS) A text string containing the field activity number (FAN). This number ensures that CMHRP data management protocols were followed. If this field is blank, the FAN is either unknown or could not be assigned to a sample collection activity due to a lack of metadata. Some FANs were retroactively created and assigned after the field activity occurred. Please visit the specific FAN's CMGDS web page for more details.
    sample_id
    Unique sample identifier assigned in the field. (Source: USGS) A text string containing the sample identification code assigned by the collecting agency or group, and unique to every individual sample.
    sample_type
    The type of sample collected in the field. (Source: USGS)
    ValueDefinition
    coreA vertical sample of relatively undisturbed geologic material (coral, coral reef, limestone, or sediment) obtained using a coring device.
    surfaceA sample collected at the surface of the geologic material.
    material
    The type of geologic material contained in the sample or core. (Source: USGS)
    ValueDefinition
    coralThe core or sample material is a coral skeleton.
    coral reefThe core or sample material is coral-reef framework, which can be composed of a combination of coral skeletons, reef sediment, and other calcium carbonate substrates.
    limestoneThe core or sample material is consolidated calcium carbonate that is either not primarily composed of coral-reef framework or is composed of coral-reef framework that has been diagenetically altered to a secondary carbonate minerology.
    sedimentThe core or sample material consists of unconsolidated sediments.
    device
    Sediment sampling collection device. (Source: USGS)
    ValueDefinition
    augerA type of auger coring device was used to collect the sample.
    boreholeA type of borehole coring device was used to collect the sample.
    box coreA box core device was used to collect the sample.
    gravity coreA gravity core device was used to collect the sample.
    hand sampleThe sample was collected by hand.
    hydraulic coring drillA hydraulic coring drill device was used to collect the sample.
    miniSEABOSSA miniSEABOSS device was used to collect the sample.
    piston coreA type of piston coring device was used to collect the sample.
    ponar-type grabA type of ponar grab was used to collect the sample.
    push coreA type of push coring device was used to collect the sample.
    rotary coreA type of rotary coring device was used to collect the sample.
    sediment tileA type of sediment tile device was used to collect the sample.
    sediment trapA sediment trap device was used to collect the sample.
    shovelA shovel was used to collect the sample.
    surface grabThe sample was collected using a surface grab technique.
    unknownThe type of device used to collect the sample is not known.
    Van Veen grabA Van Veen grab device was used to collect the sample.
    vibracoreA vibracoring device was used to collect the sample.
    age_range
    The estimated age range of the sampled material for coral, coral reef, or limestone. Approximate age obtained through various laboratory methods performed on the sample material (for example, radiometric dating). Blanks in this field indicate it is either unknown or not applicable. (Source: USGS)
    ValueDefinition
    modernThe age of the core or sample is younger than 1950 CE (Common Era).
    0-10,000 yearsThe age of the core or sample is between 0 and 10,000 years before present, where "present" by radiocarbon convention is defined as 1950 CE.
    >10,000 yearsThe age of the core or sample is before 10,000 years before present, where "present" by radiocarbon convention is defined as 1950 CE.
    coral_species
    The species of coral if the core or sample is of coral material. Blanks indicate it is either unknown or not applicable. (Source: USGS) A text string containing the binomial name of a coral species. If the species was identified, then the abbreviated genus with full species name schema was used. Example: C. natans. If a species was not identified, then the full genus name was used, followed by "spp." Example: Orbicella spp.
    site_name
    The name of the sampling site. Blanks indicate it is either unknown or not applicable for the sample or core. (Source: USGS) A text string containing the name of the sample site, which is assigned by the principal investigator.
    core_number
    The core identification number. (Source: USGS) A combination of numeric or alphanumeric string containing the core number, which is assigned by the principal investigator.
    date_collected
    The date of sample collection. Blanks in this field indicate it is unknown. (Source: USGS) Date the sample was collected, in YYYYMMDD format. Some dates were approximated (to the month or year) due to a lack of available metadata.
    length_cm
    The length of the core collected. Blanks in this field indicate it is either unknown or not applicable. (Source: USGS)
    Range of values
    Minimum:1.5
    Maximum:2835
    Units:centimeters
    water_depth_m
    The measured water depth at the location where the core or sample was collected. Blanks in this field indicate it is either unknown or not applicable. (Source: USGS)
    Range of values
    Minimum:0
    Maximum:2259
    Units:meters
    publish
    Indicates whether the sample or core has associated publications. The publicly available database does not contain unpublished samples or cores. (Source: USGS)
    ValueDefinition
    TRUEThe sample or core has an associated publication(s).
    pub_url
    Web URL to the applicable CMGDS field activity details page containing links to associated publication(s) pertaining to the sample or core. Some samples or cores originally published in the SPCMSC Core Archive Portal (Reich and others, 2012), did not have sufficient sample collection information for retroactive FAN assignment, and therefore do not have a URL in this field to a CMGDS field activity details page. Instead, a direct link to the associated publication(s), such as https://doi.org/10.3133/ds626, was used in this field. (Source: USGS) A text string containing the URL to the publication(s) or the list of publication(s) on the CMGDS field activity details page.
    type_of_analyses
    Indicates what types of analyses or scientific studies were conducted on the sample or core. The terms in this field are a controlled vocabulary from the USGS Thesaurus (https://apps.usgs.gov/thesaurus/). If multiple analyses were conducted on a core or sample, each are listed in alphabetical order, separated by commas. Blanks in this field indicate it is either unknown or not applicable. See the associated publication(s) for detailed information regarding conducted analyses. (Source: USGS Thesaurus)
    ValueDefinition
    age estimation methodsMethods used to determine the age of earth materials, typically by laboratory analysis of properties of those materials.
    atomic emission spectroscopyChemical detection of element concentration by examining the intensity and wavelength of light emitted from the sample when gaseous sample is ionized and maintained in a plasma state.
    bulk densityOverall density of an unconsolidated earth material.
    carbon-14 analysisMethod to determine the age of organic geologic and archaeological specimens, aged approximately 3,000 to 50,000 years, by determining the decay of the radioactive isotope carbon-14.
    carbon isotope analysisExperimental determination of the proportion of a given stable carbon isotope (C12 or C13) in a sample.
    chemical analysisChemical techniques used to identify the composition of substances.
    contamination and pollutionIntroduction of harmful substances into the environment by human action or natural processes.
    core analysisStudy of the composition and layers of cylindrical samples of rocks, trees, ice, and other materials extracted by drilling into a mass. Intended for broad use for the analysis of all types of core samples. The combination of this term with other terms will convey the context of the activity.
    CTD measurementInstrumental determination of conductivity, temperature, and pressure as a function of depth to determine the salinity of seawater.
    faunal and floral census (microscopic)Records of counts of the different microscopic species in a core, soil, sediment, rock or water sample to determine geologic age or other characteristic of the sample. Use for microscopic examinations.
    grain-size analysisMethod of studying soils, sediments, sands, or rock by determining the size, distribution, and proportion of selected particles.
    isotopic analysisExperimental determination of the proportion of a given isotope (or isotopes) in a sample.
    laboratory methodsTechniques to analyze and test samples in a place equipped and designed for the work.
    light stable isotope analysisAnalytical technique using mass spectrometry to measure the different isotopic forms of low mass (light) elements such as oxygen, hydrogen, carbon, nitrogen and sulfur that occur in samples.
    luminescence datingDating methods that involve the analysis of the optical properties of minerals exposed to environmental radiation. Typically used to determine the age of subaerial exposure of surficial sediments.
    magnetic susceptibilityNondestructive evaluation and location of magnetic materials in rock based on measuring the intensity of attraction of the materials to an induced magnetic field.
    mass spectroscopyInstrumental technique to separate and identify molecules. Gaseous ions are formed, with or without fragmentation. Their mass/charge ratios and relative electrical abundance are then measured or the spectra are recorded.
    paleomagnetic analysisDetermination of the intensity and direction of residual magnetism in rocks to study changes in the earth's magnetic field during past geologic time.
    permeabilityThe ability of fluids to pass through an earth material, typically depending on the connectedness of pore space in the material.
    photographyProcess of using digital or film cameras to collect images of objects.
    porosityThe proportion of open space in a rock or unconsolidated material.
    radiometric datingMethods for age determination of rocks and fossils by measuring the proportions of naturally occurring radioactive isotopes to their decay products.
    salinityMeasure of the concentration of salts dissolved in a solution.
    sea surface temperatureObserved temperature of surface ocean waters, typically encompassing the entire mixed layer.
    stratigraphyBranch of geology concerned with the study of the formation, composition, ordering in time, and arrangement in space of stratified rocks.
    tomographyObservation of the internal structure of an object or, as is more typical in USGS research, a cross section of the earth's crust by changing the relative orientation of a signal generator, a sensor, or both.
    water chemistryBranch of chemistry that deals with the elements and compounds in water.
    water qualityThe chemical, physical, and biological characteristics of water, usually in respect to its suitability for a particular purpose.
    x-ray diffractionStudy of crystals which uses short wave electromagnetic radiations (x-rays). The x-rays, scattered by the crystal atoms, show a characteristic interference pattern that is dependent upon the structure of the crystal.
    x-ray fluorescenceEstimation of chemical element concentration by measuring the energy level of secondary X-rays generated when the sample is bombarded with high-energy X-rays or gamma rays.
    latitude
    The latitude coordinate for where the sample was collected. (Source: USGS)
    Range of values
    Minimum:-3.2721
    Maximum:46.74089256
    Units:decimal degrees
    longitude
    The longitude coordinate for where the sample was collected. (Source: USGS)
    Range of values
    Minimum:-124.0468823
    Maximum:162.25
    Units:decimal degrees
    reef_tract
    A description of the reef tract where the coral, coral reef, or limestone core or sample was collected, defined by the principal investigator. Blanks in this field indicate it is either unknown or not applicable. (Source: USGS) A text string containing the reef tract name.
    time_collected
    The time of sample collection. Blanks in this field indicate it is either unknown or not applicable. (Source: USGS) Time the sample was collected in HH:MM format (time zone is local and dependent on the area of study).
    diameter_cm
    The diameter (in centimeters) of the core or sample. Blanks in this field indicate it is either unknown or not applicable. (Source: USGS)
    Range of values
    Minimum:0.76
    Maximum:15
    Units:centimeters
    compaction_m
    The measured compaction (in meters) of the core or sample. Blanks in this field indicate it is either unknown or not applicable. (Source: USGS)
    Range of values
    Minimum:0.005
    Maximum:2.77
    Units:meters
    agency
    Name of the agency that collected the sample. (Source: USGS)
    ValueDefinition
    USGSU.S. Geological Survey
    USDA-NRCSUnited States Department of Agriculture-Natural Resources Conservation Service
    LDNRLouisiana Department of Natural Resources
    Ocean-SeisOcean-Seismic Survey, Inc.
    USACEU.S. Army Corp of Engineers
    Nova Southeastern UniversityNova Southeastern University
    unknownCollecting agency is unknown.
    VIMSVirginia Institute of Marine Science
    Dial Cordy & Associates, Inc.Dial Cordy & Associates, Inc. environmental consulting firm
    Florida Atlantic UniversityFlorida Atlantic University
    platform
    Ship or vessel (if aquatic), or terrestrial platform upon which the sample or core was collected when known. (Source: USGS) A text string containing the ship or vessel name, if aquatic collection. If a terrestrial collection, the vehicle name, or "on foot" label was used. Field value has been entered as "unknown" if the collecting platform is not known.
    pi_name
    The name(s) of the principal investigators(s) who were responsible for core or field collection. Field value has been entered as "unknown" if the principal investigator is not known. (Source: USGS) A text string containing principal investigator name(s) by last name, first name. If multiple names are listed, each full name is separated by a semicolon.
    pi_email
    The email address(es) of the principal investigator(s) who were responsible for field collection. Blanks in this field indicate the principal investigator is unknown or the sample or core is deaccessioned. Field value has been entered as "contact curator" if the sample is archived, but the principal investigator is no longer with the USGS. In this case, users can refer to the curator's name and email for contact information. (Source: USGS) A text string containing an email address(es).
    disposition
    Status of the sample after it was collected in the field. This field value is subject to change at any time, as the sample database is continually re-assessed and updated. (Source: USGS)
    ValueDefinition
    ActiveThe sample or core has been collected but has not been added to the archive, this may indicate it is being actively processed or analyzed.
    ArchivedThe sample or core is stored in a repository. See storage_facility field for more information.
    DeaccessionedThe sample or core is no longer stored in a repository. The sample may have been destroyed, disposed of due to not meeting archival requirements, such as lack of adequate metadata, or consumed entirely during analysis.
    unknownThe disposition of the sample is currently not known. Please contact the sample curator for more information regarding the sample's disposition.
    in_collections
    Indicates whether the sample or core is available in the USGS SPCMSC Geologic Core and Sample Physical Storage Collection, or in an external repository. For more information, also see the disposition and storage_facility fields. (Source: USGS)
    ValueDefinition
    YesThe sample or core is available in the USGS SPCMSC Geologic Core and Sample Physical Storage Collection.
    NoThe sample or core is not available in the USGS SPCMSC Geologic Core and Sample Physical Storage Collection. The sample may be located in an external repository, please see the disposition and storage_facility fields for more information.
    unknownThe location of the sample or core in an archival repository is not known at this time.
    curator_name
    The name of the person who has responsibility for the sample or core located in the repository. This person is the point of contact for data inquiries. Blanks in this field indicate the sample or core is deaccessioned. (Source: USGS) A text string containing curator name(s) by last name, first name.
    curator_email
    The email address of the person who has responsibility for the sample or core in the repository. This email address can be used for data inquiries. Blanks in this field indicate the sample or core has been deaccessioned. All known information for the sample or core is available in this database and accompanying publications. (Source: USGS) A text string containing an email address.
    storage_facility
    The name of the organization or storage facility where the archived sample or core is located. Blanks in this field indicate it is either unknown or the sample or core is deaccessioned. (Source: USGS) A text string containing the organization or storage facility name.
    room
    The room in the storage facility where the archived sample or core is located. This field is only applicable to samples archived in the USGS SPCMSC Geologic Core and Sample Physical Storage Collection. Blanks in this field indicate the room location is either unknown, not applicable, or the sample or core is deaccessioned. (Source: USGS) A text string containing information regarding storage location.
    floor
    The floor in the storage facility where the archived sample or core is located. This field is only applicable to samples archived in the USGS SPCMSC Geologic Core and Sample Physical Storage Collection. Blanks in this field indicate the floor is either unknown, not applicable, or the sample or core is deaccessioned. (Source: USGS) A text string containing information regarding storage location.
    stack_wall
    The stack or wall number in the storage facility where the archived sample or core is located. This field is only applicable to samples or cores archived in the USGS SPCMSC Geologic Core and Sample Physical Storage Collection. Blanks in this field indicate it is either unknown, not applicable, or the sample or core is deaccessioned. (Source: USGS) A text string containing information regarding storage location.
    column
    The column of shelves in the storage location where the archived sample or core is located. This field is only applicable to samples or cores archived in the USGS SPCMSC Geologic Core and Sample Physical Storage Collection. Blanks in this field indicate it is either unknown, not applicable, or the sample or core is deaccessioned. (Source: USGS) A text string containing information regarding storage location.
    row
    The row of shelves in the storage location where the archived sample or core is located. This field is only applicable to samples or cores archived in the USGS SPCMSC Geologic Core and Sample Physical Storage Collection. Blanks in this field indicate it is either unknown, not applicable, or the sample or core is deaccessioned. (Source: USGS) A text string containing information regarding storage location.
    field_activity_url
    Web URL to the applicable CMGDS field activity details page containing field activity information and links to associated publication(s) pertaining to the sample or core. Blanks in this field indicate there was insufficient field collection information needed for retroactive FAN assignment. (Source: USGS) A text string containing a URL.
    notes
    Additional information about the sample or core that may be of interest. (Source: USGS) A text string containing notes regarding the sample or core.
    geog_approx
    Indicates if the geographic coordinates used to identify the location of sample collected are approximate and did not use modern GPS technology, the location was identified using a map, or some other geographic approximation method. (Source: USGS)
    ValueDefinition
    YesGeographic coordinates are considered approximate.
    NoGeographic coordinates are not considered approximate.
    shape*
    Feature geometry. (Source: Esri) Coordinates defining the features. *Only in ArcGIS geodatabase or shapefiles.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
  2. Who also contributed to the data set?
    The USGS St. Petersburg Coastal and Marine Science Center would like to recognize additional collaborators that assisted with field collection, analysis, and/or archival for some samples found within this database, Louisiana Department of Natural Resources (LDNR), Nova Southeastern University, Ocean-Seismic Survey, Inc (Ocean-Seis), U.S. Army Corps of Engineers (USACE), Eckerd College, Department of Agriculture's Natural Resources Conservation Service (USDA-NRCS), Virginia Institute of Marine Science (VIMS), Florida Geological Survey (FGS), USGS South Atlantic Water Science Center, USGS Pacific Coastal and Marine Science Center (PCMSC), University of New Orleans (UNO), Dial Cordy & Associates, Inc., and Florida Atlantic University.
  3. To whom should users address questions about the data?
    U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
    Attn: USGS SPCMSC Data Management Group
    Data Management
    600 4th Street South
    St. Petersburg, Florida
    USA

    727-502-8000 (voice)

Why was the data set created?

The purpose of this database is to provide a comprehensive inventory of geologic samples collected, analyzed, published, and/or archived by, or in collaboration with, USGS SPCMSC. This inventory has been compiled, organized, and released online to provide researchers and the general public with a means to discover and browse through information about physical samples and cores utilized by SPCMSC along with their associated metadata and publications. This database serves to ensure preservation of sample metadata for future research and reuse.

How was the data set created?

  1. From what previous works were the data drawn?
    SPCMSC_core_database (source 1 of 2)
    Reich, Chris, Streubert, Matt, Dwyer, Brendan, Godbout, Megan, Muslic, Adis, and Umberger, Dan, 20120104, St. Petersburg Coastal and Marine Science Center's Core Archive Portal: U.S. Geological Survey Data Series 626.

    Online Links:

    Type_of_Source_Media: tabular digital data
    Source_Contribution:
    This data set is the original USGS St. Petersburg Coastal and Marine Science Core Archive Database. Data consisted predominately of coral and rock cores collected by the USGS in south Florida, Bahamas, Gulf of Mexico, and Virgin Islands. All rock sample records recorded in Data Series 626 have since been reclassified to either coral, coral reef, limestone, or sediment material during an update the database in April 2022 to improve descriptive accuracy. The database was combined with the SPCMSC sediment sample database to create a more comprehensive record of past geologic sampling efforts from SPCMSC. Some dates and other collection information may have been altered from this publication since its original release, as more accurate information from published research was discovered.
    SPCMSC_sediment_samples (source 2 of 2)
    Schreppel, Heather, Smith, Kathryn, Flocks, James, Dadisman, Shawn, Tiling-Range, Ginger, Douglas, Steven, Stalk, Chelsea, and Williams, Breanna, 20130122, St. Petersburg Coastal and Marine Science Center's Published Sediment Samples Database.

    Online Links:

    Type_of_Source_Media: tabular digital data
    Source_Contribution:
    The published USGS SPCSMC Sediment Samples Database contained information on sediment cores and samples collected by SPCMSC staff and collaborators located predominately in the Gulf of Mexico. The database only contained information on sediment grab samples and cores that have been published in an official USGS publication or a peer-reviewed scholarly publication. Data from the St. Petersburg Coastal and Marine Science Center's Core Archive Portal (Reich and others, 2012) was combined with this database (Schreppel and others, 2013) to create a more comprehensive record of geologic cores and samples associated with USGS SPCMSC. Some dates and other collection information may have been altered from this database since its original release, as more accurate information from published research was discovered.
  2. How were the data generated, processed, and modified?
    Date: 2012 (process 1 of 4)
    Information from core description sheets and publications on sediment samples and cores were populated into an Excel spreadsheet by manual entry. Sediment samples and cores that were physically archived in the USGS SPCMSC Core Laboratory were populated with associated repository storage locations in the database. Person who carried out this activity:
    U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
    Attn: Heather Schreppel
    Geographer (Data Management)
    600 4th Street South
    St. Petersburg, Florida
    USA

    727-502-8013 (voice)
    hschreppel@usgs.gov
    Data sources produced in this process:
    • SPCMSC_core_database
    Date: 2012 (process 2 of 4)
    Information from description sheets and published research on sediment, rock (which have since been reclassified to a different material type to improve descriptive accuracy) and coral cores archived within the USGS SPCMSC Core Laboratory repository were populated into Excel spreadsheet by manual entry. Person who carried out this activity:
    U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
    Attn: Chris Reich
    Geologist
    600 4th Street South
    St. Petersburg, Florida
    USA

    727-502-8032 (voice)
    creich@usgs.gov
    Data sources produced in this process:
    • SPCMSC_sediment_samples
    Date: 24-Jun-2013 (process 3 of 4)
    Step 1 (First-time publishing): Data from the USGS St. Petersburg Coastal and Marine Science Core Archive Database were combined into comparable columns in the USGS SPCSMC Sediment Samples Database to create a single, complete database of all SPCMSC geologic samples and cores. Attribute names were adjusted, but no essential information was lost or deleted during the collation. Data were imported from Excel into an ArcGIS file geodatabase and then imported into an ArcSDE enterprise geodatabase. Web services were published online using ArcGIS Server and presented through an ArcGIS Application Programming Interface (API) for Esri Flex at http://olga.er.usgs.gov/coreviewer/. Person who carried out this activity:
    U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
    Attn: Kathryn Smith
    Research Ecologist
    600 4th Street South
    St. Petersburg, Florida
    USA

    727-502-8073 (voice)
    kelsmith@usgs.gov
    Data sources used in this process:
    • SPCMSC_core_database
    • SPCMSC_sediment_samples
    Data sources produced in this process:
    • SPCMSC_geologic_samples
    Date: 01-Jan-2014 (process 4 of 4)
    Step 2 (Re-publishing): Information about samples and cores are regularly added to the existing Excel spreadsheet (created in process step 1) as more are collected in the field, or new information is published about previously collected samples or core. Sample or core information may be altered in the database for samples or cores included in previous iterations of the database, as more accurate information from published research is discovered. Once updated with new information, the Excel spreadsheet file is saved as a comma-separated values (CSV) file. Then, the CSV file is converted into a shapefile using ArcMap and imported into an ArcGIS Enterprise geodatabase as a feature class. The feature class has been published as a web service using ArcGIS Server in ArcGIS Enterprise 10.6 and is accessible through an ArcGIS Online Web Mapping Application, available at https://doi.org/10.5066/F7319TR3. When the feature class in the geodatabase is updated, the web service and web application automatically update. The re-publishing of this database is planned to be continual and on an as-needed basis. Person who carried out this activity:
    U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
    Attn: Breanna Williams
    Geographer
    600 4th Street South
    St. Petersburg, Florida
    USA

    727-502-8027 (voice)
    bnwilliams@usgs.gov
    Data sources used in this process:
    • SPCMSC_geologic_samples
    • SPCMSC_samples_database
    Data sources produced in this process:
    • SPCSMC_samples_database
  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?
    The validity or accuracy of information on the geologic samples and cores are dependent on individual surveys and the availability of information regarding historic field collection procedures. Database fields have been left blank when the information could not be obtained from available records and publications. Latitude/Longitude coordinates of field locations where cores and samples were collected could not always be determined, particularly for samples or cores obtained prior to the availability of Global Positioning System (GPS). Therefore, some locations should be considered approximate. The error for location coordinates ranges considerably depending on the date of collection and the availability of information in existing records. Samples or cores whose collection locations have been approximated are indicated as such in the geog_approx field. Consult the associated publication(s) for that sample or core for more information regarding locational accuracy.
  2. How accurate are the geographic locations?
    The coordinates for many of the cores collected prior to GPS technology are generalized and based on general descriptions of field surveys; therefore, the spatial error can be up to several hundred meters. With the use of modern GPS tools, most samples and cores collected after 1991 have the potential to be more accurate; however, no estimate of accuracy has been conducted. Consult the associated publication(s) for that sample or core for more information regarding horizontal positional accuracy details.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    Data are considered complete and available records for samples and cores published by the U.S. Geological Survey's St. Petersburg Coastal and Marine Science Center are found within the database. Unpublished records for samples or cores are not included in the publicly available version of the database.
  5. How consistent are the relationships among the observations, including topology?
    This database includes samples and cores collected during multiple field activities and various publications; therefore, no fidelity checks have been conducted. Samples or cores may have the same coordinates due to close proximity and spatial accuracy of geographic records.

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:
Prior to use of these records in any analysis or report, the USGS must be notified and if used the provenance of the original data must be acknowledged. Acknowledge the use of specific records from contributing USGS databases and recognize the limitations of data.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
    Attn: USGS SPCMSC Data Management Group
    Data Management
    600 4th Street South
    St. Petersburg, Florida
    USA

    727-502-8000 (voice)
    gs-g-spcmsc_data_inquiries@usgs.gov
  2. What's the catalog number I need to order this data set?
  3. What legal disclaimers am I supposed to read?
    This publication was prepared by an agency of the United States Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 18-Apr-2022
Metadata author:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
Attn: Breanna Williams
Geographer
600 4th Street South
St. Petersburg, FL
USA

727-502-8027 (voice)
bnwilliams@usgs.gov
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

Generated by mp version 2.9.51 on Mon Apr 18 09:00:12 2022