Stratotectonic map of Tasmania at 1:500,000 scale indicating main elements of Tasmanian geology, including categories of boundaries to elements, and depth to granite batholiths. Accompanied by large-format Time-Space Diagram of Tasmania and report (Seymour, D.B., Calver, C.R., 1995; Explanatory notes for the Time-Space Diagram and Stratotectonic Elements Map of Tasmania. Tasmanian Geological Survey Record 1995/01).

Geological lines (contacts, faults) and geological rock units, derived from 1:250,000 geology data. Rock units have been simplified based on a parent 1:500,000 unit, geological boundaries have been generalised to be suitable for 1:500,000 scale data. The digital data is available as a seamless state wide coverage and is used to produce the Geology of Tasmania 1:500,000 Scale map.

Geological lines (contacts, faults, linears), geological rock units, and structure data derived from 1:50,000 and 1:63,360 Digital Geological Atlas printed map series and 1:25,000 digital geology data where available. Geological units and boundaries have been generalised and compiled for 1:250,000 scale. The digital data is available as a seamless state wide coverage and is used to produce the Digital Geological Atlas 1:250,000 Scale map series.

This dataset shows point locations at which geological samples have been taken and/or (less commonly) geological observations or measurements have been made. Only basic information is included, but further data for each point may be available on-line from the Mineral Resources Tasmania website (go to Products and Services/Database Searches/Samples and Geochemistry Search or use this link): http://www.mrt.tas.gov.au/portal/samples-and-geochemistry-search and click on Search, then Export Results) Data attached to each sample ideally includes metric coordinates (or sometimes lat/long), locality name and description, positional accuracy (3D), field and registration numbers, originator, project, collection date, sample type and description, and may include lithology, lithostratigraphy, chronostratigraphy, minerals, mineralisation types, potential hazards, soil type, storage details, references and comments. Major and trace element analyses and assays, petrophysical data (density, magnetic, electrical, thermal, sonic velocity etc.), electron microprobe analyses of minerals, x-ray diffraction determination of mineralogy, soil tests, photographs, reports and other data may be attached and are also down-loadable. Most points refer to surface samples or observations, but down-hole data is also included for some sample types. Data is open to the public for 126,606 records and closed, restricted or reserved for 67,879. The largest dataset is of rock samples (111,778, including 26,685 with whole-rock chemical analyses by x-ray fluorescence). The stream sediment dataset consists of 52,281 samples, mainly collected for mineral exploration and with geochemical results attached. The soil sample dataset (19,626) includes samples collected both for mineral exploration and geotechnical properties. There are smaller datasets for minerals (i.e. specimens, 4579 samples), mineralised samples (e.g. ores; 2781), sediments (e.g. heavy mineral sands, building sand, gravel, clay, 976), tailings and mine waste (1,926), fossils (344), environmental samples (e.g. dust at mine sites; 160), artificial samples (e.g. slags, metallurgical products, concrete; 289) and concentrates (e.g. of sluiced or panned tin or gold; 107). Drill logs (839) and miscellaneous readings/observations (including physical property measurements; 1610) are also included.

Joined Geomorphic Polygons show geomorphological polygons of the Hobart and Glenorchyareas as part of the Tasmanian Landslide Hazard Map Series, 2005. Features consist of surficial units identified in the 1:25 000 geology map of Tasmania and reclassified based on depositional environment. The features provide an indication of surficial units that were thick enough/ important enough to be depicted in the geological mapping process. This data was supplied to ES-GIS by Mineral Resources Tasmanina (MRT), a part of the Dept. Infrastructure, Energy and Resources (DIER) and will be regularly updated (or upon request) with periodic resupplies.

Mosaic image of the Simplified Geology map theme in the Tasmanian Landslide Map Series published by Mineral Resources Tasmania. Shows simplified geology over the Tamar Valley region â surficial and bedrock units.

Three hundred and sixty-five surface and near-surface seabed samples provide the basis for an assessment of regional lithofacies variations on the Tasmanian shelf and in eastern and western Bass Strait. Quartz-rich sands with variable amounts of shell debris occur on the innermost shelf and on the rises flanking the central Bass Strait basin. They are essentially modern deposits derived in the main from Pleistocene near shore sand bodies reworked and transported landwards during the Holocene marine transgression. Muddy sediments of the middle shelf off eastern Tasmania and in central Bass Strait are sites of present-day sedimentation, but they are likely to form only a thin veneer, and include coarse material probably reworked from the Pleistocene and early Holocene substrate. Extensive areas of the middle and outer shelf, particularly off southern and western Tasmania, are floored by dominantly relict bryozoan sands and gravels. Fine-grained and shelly, slightly quartzose sands in areas of the middle shelf consist of relict sediment, and sediment from the late Holocene transgressive marine sand sheet, in about equal proportions. Four main suites of heavy minerals are present in the surface sediments. Provenance relationships with sources in the adjacent hinterland suggest that little offshore sediment transport parallel to the coastline has taken place. Rare grains of cassiterite were identified in marine sediments lying off the tin-producing areas of northeastern Tasmania, but 10 ppm Sn was the maximum value recorded in the geochemical analyses. Some phosphatisation of relict limestone gravels on the middle and outer shelf off northwestern Tasmania has taken place, but the highest recorded whole-rock analysis was 3.6 percent Pi>0. Density of sample stations in this part of the shelf is low.

Three hundred and sixty-five surface and near-surface seabed samples provide the basis for an assessment of regional lithofacies variations on the Tasmanian shelf and in eastern and western Bass Strait. Quartz-rich sands with variable amounts of shell debris occur on the innermost shelf and on the rises flanking the central Bass Strait basin. They are essentially modern deposits derived in the main from Pleistocene near shore sand bodies reworked and transported landwards during the Holocene marine transgression. Muddy sediments of the middle shelf off eastern Tasmania and in central Bass Strait are sites of present-day sedimentation, but they are likely to form only a thin veneer, and include coarse material probably reworked from the Pleistocene and early Holocene substrate. Extensive areas of the middle and outer shelf, particularly off southern and western Tasmania, are floored by dominantly relict bryozoan sands and gravels. Fine-grained and shelly, slightly quartzose sands in areas of the middle shelf consist of relict sediment, and sediment from the late Holocene transgressive marine sand sheet, in about equal proportions. Four main suites of heavy minerals are present in the surface sediments. Provenance relationships with sources in the adjacent hinterland suggest that little offshore sediment transport parallel to the coastline has taken place. Rare grains of cassiterite were identified in marine sediments lying off the tin-producing areas of northeastern Tasmania, but 10 ppm Sn was the maximum value recorded in the geochemical analyses. Some phosphatisation of relict limestone gravels on the middle and outer shelf off northwestern Tasmania has taken place, but the highest recorded whole-rock analysis was 3.6 percent Pi>0. Density of sample stations in this part of the shelf is low.

Three hundred and sixty-five surface and near-surface seabed samples provide the basis for an assessment of regional lithofacies variations on the Tasmanian shelf and in eastern and western Bass Strait. Quartz-rich sands with variable amounts of shell debris occur on the innermost shelf and on the rises flanking the central Bass Strait basin. They are essentially modern deposits derived in the main from Pleistocene near shore sand bodies reworked and transported landwards during the Holocene marine transgression. Muddy sediments of the middle shelf off eastern Tasmania and in central Bass Strait are sites of present-day sedimentation, but they are likely to form only a thin veneer, and include coarse material probably reworked from the Pleistocene and early Holocene substrate. Extensive areas of the middle and outer shelf, particularly off southern and western Tasmania, are floored by dominantly relict bryozoan sands and gravels. Fine-grained and shelly, slightly quartzose sands in areas of the middle shelf consist of relict sediment, and sediment from the late Holocene transgressive marine sand sheet, in about equal proportions. Four main suites of heavy minerals are present in the surface sediments. Provenance relationships with sources in the adjacent hinterland suggest that little offshore sediment transport parallel to the coastline has taken place. Rare grains of cassiterite were identified in marine sediments lying off the tin-producing areas of northeastern Tasmania, but 10 ppm Sn was the maximum value recorded in the geochemical analyses. Some phosphatisation of relict limestone gravels on the middle and outer shelf off northwestern Tasmania has taken place, but the highest recorded whole-rock analysis was 3.6 percent Pi>0. Density of sample stations in this part of the shelf is low.