The petrophysics dataset contains petrophysical (rock physical properties) data acquired by the Geological Survey of NSW. It stores measurements of samples and mapping sites collected under the Field Observations database, including from drillholes. It currently covers the following techniques: mass properties, electrical, radiometric, seismic rock physics, magnetic susceptibility and magnetic remanence. It contains raw readings and calculated results, from field and laboratory environments. Vector and tensor magnetic properties (remanence and anisotropic magnetic susceptibility (AMS)) are oriented to in-situ (geographic) and fold-corrected (stratigraphic) co-ordinates where sample and bedding orientation are known.

Index of map sheets in NSW. Includes the 1:250 000, 1: 100 000 and 1: 25 000 geological maps. The MinView layer provides a link to the DIGS catalogue entry.

This layer shows the boundaries of each airborne gravity survey acquired by the NSW Government. Details on the spacing and age of the gravity data within each project area are in the attributes. The information contained in this publication is based on knowledge and understanding at time of writing (April 2017). Because of advances in knowledge, users are reminded of the need to ensure that information upon which they rely is up to date. The information contained in this publication may not be or may no longer be aligned with government policy nor does the publication indicate or imply government policy.

Marine protected areas are parts of the NSW marine estate managed to conserve marine biodiversity and support marine science, recreation and education. The NSW system of marine protected areas includes: marine parks – six multiple use marine parks cover around one third (approximately 345,000 hectares) of the NSW marine estate aquatic reserves – 12 aquatic reserves cover around 2,000 hectares of the NSW marine estate national parks and nature reserves – include around 20,000 hectares of estuarine and oceanic habitats.

An index of 1:250 000 map sheets covering NSW. The index shows maps where the total statewide geophysics package has been clipped and re-imaged to enhance colour stretch for the local regions. Each map sheet suite contains grids and images for up to 40 different layers, including: - Total Magnetic Intensity (TMI) - TMI Reduced to the Pole (RTP) - First Vertical Derivative (1VD) of TMI RTP - Second Vertical Derivative (2VD) or TMI RTP - Tilt Angle Filter of TMI RTP - TMI RTP and TMI RTP Tilt composite - Analytical Signal (AS) of TMI RTP - 250m and 500m Upward Continuations (UC) of TMI RTP - 1VD of TMI RTP UC products - Potassium percentage (Kperc) - Thorium parts per million (Thppm) - Uranium parts per million (Uppm) - Potassium-Thorium-Uranium ternary (KThU) - Zero mean normalised Kperc - Zero mean normalised Thppm - Zero mean normalised Uppm - Dose Rate - Uranium squared divided by Thorium (U2/Th) - Thorium divided by Potassium (Th/K) - Uranium divided by Potassium (U/K) - Uranium divided by Thorium (U/Th) - Airborne & Ground Bouguer gravity - Airborne & Ground Bouguer gravity and TMI RTP Tilt composite - Airborne & Ground Bouguer gravity 1VD - Airborne & Ground Isostatic gravity - Airborne & Ground Isostatic gravity and TMI RTP Tilt composite - Airborne & Ground Isostatic gravity 1VD - Digital Elevation Model (DEM) - Terrain colour stretch - Pseudocolour colour stretch - Greyscale colour stretch

Drillhole sample geochemistry that has been reported by title holders to the department as part of the mineral exploration reporting requirements. The data is provided annually in the form of exploration data files and stored with the relevant tenement report in DIGS. Data mining of digital exploration data files stored in DIGS is largely complete for the period 2001 to present. Data mining continues for DIGS reports earlier than 2001 using OCR (optical character recognition) software to convert raster data into digital files for loading. Validation of data is an ongoing process. Data available to the public and industry is restricted to DIGS open file reports.

The Geochemistry (Whole Rock) data set contains information about the chemistry of rocks sampled in New South Wales and held by the Geological Survey of NSW (GSNSW). The data has been captured from analyses conducted by the GSNSW and from other work including academic research & collaborative projects, mineral exploration reports and geoscientific publications. The database contains geochemical analyses on nearly 27,000 rock samples which have been collected from field work and drilling activities which date back to the nineteenth century. There are also a small number of assay & hydro-geochemical results. It is an important dataset as the whole rock analysis of rocks for major and trace elements allows classification of the lithology of a rock and provides insight into the conditions in which the rocks formed as well as their economic potential.

AEM data has been acquired by the NSW government through NSW Exploration, Discovery 2000 and New Frontiers Initiative funding. Contained within this vector file is the location of AEMsurveys and acquisition parameters. The information contained in this publication is based on knowledge and understanding at time of writing (February 2017). Because of advances in knowledge, users are reminded of the need to ensure that information upon which they rely is up to date. The information contained in this publication may not be or may no longer be aligned with government policy nor does the publication indicate or imply government policy.

Geological Maps at the 1:100 000 scale for all of NSW. This data has been synthesised into the 1:1 500 000 scale map of NSW, which forms the base layer of Minview.

Represent areas where the Department has declared reserves over which titles cannot be granted, or can only be granted provided that special conditions are met. The layer outlines these areas, and the restrictions which apply to each of them.