<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:gcmd="https://gcmd.earthdata.nasa.gov/kms#" xmlns:dcterms="http://purl.org/dc/terms/" xml:base="https://gcmd.earthdata.nasa.gov/kms/concept/">
  <gcmd:gcmd>
    <gcmd:termsOfUse>https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf</gcmd:termsOfUse>
    <gcmd:keywordVersion>23.7</gcmd:keywordVersion>
    <gcmd:schemeVersion>2026-04-15T10:53:30.610Z</gcmd:schemeVersion>
    <gcmd:viewer>https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/296b7bc4-c031-48ea-bb6d-99f7c971c953</gcmd:viewer>
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  <skos:Concept rdf:about="296b7bc4-c031-48ea-bb6d-99f7c971c953">
    <skos:broader rdf:resource="45325a01-2522-48d3-bffa-0edf1a934d48"/>
    <skos:prefLabel xml:lang="en">CORAL DEPOSITS</skos:prefLabel>
    <gcmd:reference gcmd:text="Bradley, R.S. 1999. Paleoclimatology: Reconstructing Climates of the Quaternary, 2nd edition. Harcourt Academic Press (especially chapter 6.8)." xml:lang="en"/>
    <skos:definition xml:lang="en">Corals are generally members of the order Scleractinia, which have hardcalcerous skeletons supporting softer tissues. For paleoclimatic studies, theimportant coral subgroup is the reef-building, massive corals known ashermatypic corals. Coral growth rates vary and are sensitive to sea surfacetemperatures (SSTs). Dating coral growth has shown high correspondance betweenlarge excursions of oxygen-18 (del18O) and El Nino Southern Oscillation (ENSO)events. Coral growth studies have led to new information about paleo-SSTs,rainfall, river runoff, ocean circulation, and tropical wind systems.</skos:definition>
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