{
    "tag": 18910,
    "title": "The Relative Composition of Late Pleistocene Coral Reefs in the Florida Keys",
    "pubdate": "20250317",
    "sername": null,
    "series_name": null,
    "issue": null,
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/spcmsc\/Late_Pleistocene_coral_reef_relative_composition_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "The U.S. Geological Survey St. Petersburg Coastal and Marine Science Center\u2019s (USGS SPCMSC) Core Archive in St. Petersburg, FL contains a collection of coral-reef cores collected from throughout the Florida Keys reef tract (FKRT). In a previous study (Toth and Stathakopoulos, 2019), USGS researchers analyzed the upper, Holocene (~11,700 years ago to present) sections of those cores to evaluate how the coral composition of the FKRT changed over millennial timescales. Using the same methods, USGS researchers quantified the relative composition of late Pleistocene (~116 to 74 thousand years before present; Marine Isotope Stages [MIS] 5d, 5c, 5b, and 5a) sections of the coral reef cores dated by Hsia and others (2024a,b). This data release provides metadata about the location of the cores and summarizes the relative composition of coral taxa and other carbonates and the water depths (relative to modern mean sea level) of the analyzed core intervals. The data release also provides a summary of previously unpublished data (collected by David Weinstein) on the relative composition of an older Late Pleistocene reef (growing  ~130\u2013116 thousand years before present; MIS5e) from the subaerially exposed fossil reef at Windley Key Fossil Reef Geological Park. These data are compared with Holocene and modern coral-reef assemblages on the FKRT in Toth and others (2025).",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Toth, Lauren T.",
            "role": "Author"
        },
        {
            "name": "Stathakopoulos, Anastasios",
            "role": "Author"
        },
        {
            "name": "Hsia, Scarlette",
            "role": "Author"
        },
        {
            "name": "Weinstein, David",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "311",
            "name": "ecology",
            "scope": "Study of the relations between living plants and animals and their environment."
        },
        {
            "thcode": 2,
            "code": "706",
            "name": "marine geology",
            "scope": "Branch of geology concerned with the composition, geologic history, and earth processes of the ocean floor and the continental margin."
        },
        {
            "thcode": 2,
            "code": "1653",
            "name": "Pleistocene",
            "scope": "Epoch of geologic time approximately 2.6 million to 11 thousand years ago. https:\/\/doi.org\/10.3133\/fs20103059"
        },
        {
            "thcode": 2,
            "code": "954",
            "name": "radiometric dating",
            "scope": "Methods for age determination of rocks and fossils by measuring the proportions of naturally occurring radioactive isotopes to their decay products."
        },
        {
            "thcode": 2,
            "code": "971",
            "name": "reef ecosystems",
            "scope": "Biological communities formed by the skeletons of calcareous seawater organisms, usually corals."
        },
        {
            "thcode": 2,
            "code": "978",
            "name": "relative abundance analysis",
            "scope": "Determination of the percentage of individuals of one group in comparison to the total of all individuals in a given area."
        },
        {
            "thcode": 15,
            "code": "002",
            "name": "biota",
            "scope": "Flora or fauna in natural environment, for example wildlife, vegetation, biological sciences, ecology, wilderness, sea life, wetlands, habitat, biological resources"
        },
        {
            "thcode": 15,
            "code": "014",
            "name": "oceans",
            "scope": "Features and characteristics of salt water bodies (excluding inland waters), for example tides, tidal waves, coastal information, reefs, maritime, outer continental shelf submerged lands, shoreline"
        }
    ],
    "place_term": [],
    "image": [],
    "fan": []
}