TASMANIAN QUATERNARY COASTAL SEDIMENTS DIGITAL POLYGON MAP VERSION 4.0 (2006)

The Tasmanian Quaternary Coastal Sediments polygon map is a digital map encoding a range of geomorphic and related attributes describing the soft Quaternary-age coastal sediment and landform types on the coastal areas of Tasmania and its major islands including the Bass Strait islands, but not Macquarie Island. The original version of the map was compiled between during 2004 by Chris Sharples, by combining earlier map coverage's compiled in 1998 for the Tasmanian WNW coasts, and in 2001 for the SE Tasmania coast. Subsequent field mapping by Frances Mowling and Chris Sharples during 2005 ' 2006 (funded by Natural Resource Management (NRM) projects), and information extracted from published geological mapping, has been added to the map for eastern Tasmania and Flinders Island, and it is now (2006) in its 4th version. A data dictionary accompanying the data set and available from the custodian gives a detailed explanation of attributes and other information about the map. The map comprises polygons mapped at a variety of scales in different parts of the state (1:25,000 to 1:250,000 scale) and geo-referenced to the GDA94 datum. Each polygon is tagged with a range of attribute codes describing sediment types, landforms and (where relevant) dune mobility. The geomorphic data is presented in a simple descriptive format which is applicable to a wide range of coastal management and research purposes. The map provides more complete mapping of coastal Quaternary sediments than do Tasmanian Geological Survey maps (which compromise Quaternary mapping cover by depicting both Quaternary sediments and bedrock in a single layer), however the Tasmanian Quaternary Coastal Sediments polygon map has not yet been compiled for the southern and south-western coastal areas of the Tasmanian mainland, and is complete but at widely varying scales in other parts of the State.