gcmd_keyword : LAND RECORDS>VOLCANIC DEPOSITS

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parent	PALEOCLIMATE INDICATORS>LAND RECORDS
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definition	Volcanic deposits can consist of tephra, which is airborne pyroclastic material. Extremely explosive volcanic eruptions can produce vast quantities of tephra over wide areas. Tephra layers can form regional isochronous stratigraphic markers. Tephrachronology can a very important tool in paleoclimatic studies. Volcanic ash horizons can also be used as chronostratigraphic markers.
identifier	52325c6e-1084-43c1-83b2-278bbe0201c6
label	VOLCANIC DEPOSITS
parent_identifier	2bedb6b3-6e92-42e2-b382-60e2a6aab8e9
GCMD Metadata	52325c6e-1084-43c1-83b2-278bbe0201c6
Ancestors	VOLCANIC DEPOSITS < LAND RECORDS < PALEOCLIMATE INDICATORS < CLIMATE INDICATORS < EARTH SCIENCE < Science Keywords