Holocene alluvial deposits

These geological units comprised of gravel, sand and mud were wholly or partly deposited in the Holocene (in the last 11,700 years) as a result of water-borne alluvial floodplain and fan processes. The units are indicative of the extent of Holocene flooding events preserved in the sedimentary record.  These data have been extracted from the geological units layer of the digital 1:250 000 Geological Map of New Zealand NZL_GNS_250K_Geology 3rd edition (2020) published by GNS Science https://doi.org/10.21420/JEAP-4J81
Hosted By: GNS Science
Keywords: alluvial floodplain deposits, alluvial fan deposits, geological units, holocene
Categories: Geology, Flooding
Data Type: ArcGIS web layer
Coordinate System: NZGD2000 / New Zealand Transverse Mercator 2000
Geographic Extent: All of New Zealand.
Is Geospatially Referenced: Yes
Sharing Status Restrictions: Creative Commons Attribution 4.0 International