INSPIRE
Registry

tephra

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Label:
tephra
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.
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Label Governance level Status
ash and lapilli eu-technical Valid
ash breccia, bomb, or block tephra eu-technical Valid