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PREFERRED TERM
tephra  
TYPE
  • http://purl.org/net/provenance/ns#DataItem

DEFINITION
  • Unconsolidated pyroclastic material in which greater than 75 percent of the fragments are deposited as a direct result of volcanic processes and the deposit has not been reworked by epiclastic processes. Includes ash, lapilli tephra, bomb tephra, block tephra and unconsolidated agglomerate.
DESCRIPTION
  • Unconsolidated pyroclastic material in which greater than 75 percent of the fragments are deposited as a direct result of volcanic processes and the deposit has not been reworked by epiclastic processes. Includes ash, lapilli tephra, bomb tephra, block tephra and unconsolidated agglomerate.
IDENTIFIER
  • tephra
TITLE
  • tephra
URI
http://inspire.ec.europa.eu/codelist/LithologyValue/tephra
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EQUIVALENT CONCEPTS
Lithology