The Surface Hydrology Points (Regional) dataset provides a set of related features classes to be used as the basis of the production of consistent hydrological information. This dataset contains a geometric representation of major hydrographic point elements - both natural and artificial. This dataset is the best available data supplied by Jurisdictions and aggregated by Geoscience Australia it is intended for defining hydrological features.

<div>The Abbot Point to Hydrographers Passage bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the RV Escape during the period 6 Oct 2020 – 16 Mar 2021. This was a contracted survey conducted for the Australian Hydrographic Office by iXblue Pty Ltd as part of the Hydroscheme Industry Partnership Program. The survey area encompases a section of Two-Way Route from Abbot Point through Hydrographers Passage QLD. Bathymetry data was acquired using a Kongsberg EM 2040, and processed using QPS QINSy. The dataset was then exported as a 30m resolution, 32 bit floating point GeoTIFF grid of the survey area.</div><div>This dataset is not to be used for navigational purposes.</div>

<p>The Australian Stratigraphic Units Database (ASUD) is the national authority on stratigraphic names in Australia. It originated as the National Register of Stratigraphic Names in 1949. The register was originally set up to help geoscientists adhere to the then newly created Australian Code of Stratigraphic Nomenclature (Lenz, et al, 1996). All information was held in a card file system until 1979 when the database was first developed electronically. The database now records information on all Australian stratigraphic units and their usage in published literature. <p>The database contains about 17500 currently approved stratigraphic names and over 36000 variations, most of which are superseded, obsolete, or misspelt versions of the current names. This information is based on over 16000 published references. <p>The database is maintained by Geoscience Australia on behalf of the Australian Stratigraphy Commission, a standing committee of the Geological Society of Australia. <p>Procedures can be queried at: http://www.ga.gov.au/data-pubs/datastandards/stratigraphic-units? <p>Data can be queried and downloaded at the ASUD website at: https://asud.ga.gov.au/ <p>Email contact: stratnames@ga.gov.au

A seismic reflection traverse was surveyed across the Perth Basin through the township of Gingin. The traverse was planned to give information on the thickness of the sedimentary section, the structure of the Basin, and the aplicability of the seismic method as a tool for both regional and detailed investigation. The traverse was chosen to cross a major negative gravity anomaly (-110 milligals at Gingin) and to cross the so-called "Hill River Fault". A considerable thickness of section was indicated (in excess of 17,000 feet) and tectonic structure, not apparent in the surface geology, was shown. A deep-seated anticline, the Gingin anticline, was discovered.

The Officer Basin project was a co-operative project jointly conducted by Geoscience Australia (GA) and the South Australian Department of Mines and Energy (DMESA) as part of the National Geoscience Mapping Accord (NGMA). The goals of the 1993 seismic acquisition in the Officer Basin were to provide a regional network of traverses to develop a cross section and evaluate basin morphology. The acquisition was designed to image the basin fill, with the aim of extending the stratigraphic control in the eastern Officer Basin into the central portion of this basin. The survey comprised five lines totalling 550 km in length. In 2021, Geoscience Australia commissioned reprocessing of these legacy 2D seismic data as part of the Exploring for the Future (EFTF) program, to improve data quality and better image reflective structural features in the region. Velseis Processing Pty Ltd carried out the reprocessing from March to August 2021. GA managed the reprocessing project, undertook quality control of the data processing and archived the processed data. This dataset includes metadata, images and SEGY files for pre-migration stacks, pre-stack time and depth migration stacks, and post-stack migration data. The images and SEGY files are derived from the Velseis final SEGY files. The reprocessed dataset is available for download. <b>Raw data and the Velseis data package for this survey are available on request from clientservices@ga.gov.au - Quote eCat# 74944</b>

An experimental high-resolution seismic survey was undertaken in the Pilliga State Forest near Narrabri, NSW in April 2003. The Australian National Seismic Imaging Resource (ANSIR) carried out the field work on behalf of a Geoscience Australia research project. A NSW State Forests Special Purposes Permit was obtained for the survey. This survey was designed to collect a seismic dataset for shallow high-resolution seismic imaging in an area of known high data quality. Both P- and S-wave seismic sources were employed with data recorded using 14 Hz 3 component geophones. The objective of this project was to provide researchers with an over-sampled multi-component, multi-source shallow high-resolution seismic data set for the development of acquisition and processing methodologies.

A seismic survey using the Australian National Seismic Imaging Resource (ANSIR) Hemi 60 Vibroseis vehicles, ARAM24 acquisition equipment and Pelton controllers was carried out in the Curnamona Province of South Australia. A total of 197.6 km of 2-D seismic reflection data were collected to 18 seconds two way time over a single line at a nominal 60 fold CDP coverage. These data were acquired under contract by Trace Energy Services (2003) and by Terrex Seismic (2004). The survey commenced in August 2003 but was abandoned due to wet weather. Survey operations were recommenced and completed in July 2004. The project was undertaken to meet the objectives of ANSIR proposal 03-02R as lodged by researchers from PIRSA, Office of Minerals, Energy and Petroleum, SA. The principal scientific objective of this survey was to provide a regional crustal seismic image of the Curnamona Province. This dataset will assist in the understanding of the geological architecture and resource potential of the region particularly in areas under cover. This line links with a seismic transect in the Broken Hill Block undertaken by Australian Geological Survey Organisation (AGSO, now Geoscience Australia) in 1996 and provides a future opportunity for an eventual east-west continuation across the Adelaide Geosyncline and the Gawler Craton. The survey was funded by PIRSA, Office of Minerals, Energy and Petroleum, SA and the pmd*CRC with project supervision undertaken by ANSIR and in-kind support from Geoscience Australia (GA).

Trace Energy Services was contracted by the Australian National Seismic Imaging Resource (ANSIR) to conduct the Batten Trough Seismic Survey in the Northern Territory. The survey consisted of two lines totalling 127.60 kms. The data were collected in late 2002 as part of a study to examine the fundamental basin architecture of the Southern McArthur Basin and the nature of underlying basement. Much of the seismic program was designed to test geometric models in this area, including tectonostratigraphy, fault systems and basement structure. The results have wider applicability because the basin is considered to be a little deformed analogue of the Western Succession of Mt Isa.

<p>Geoscience Australia through its partnership in the Australian Geodynamics Cooperative Research Centre (AGCRC) and Kalgoorlie Consolidated Gold Mines (KCGM) completed a joint research project to image the crustal structure of the Kalgoorlie region to develop a knowledge of the shallow and deep structures, tectonics, and fluid migration pathways. The Australian National Seismic Imaging Resource (ANSIR) was contracted to acquire the seismic data. The project's objectives were to obtain a better understanding of 1. sub-surface geology at a regional and mine scale 2. regional crustal thickness and major features 3. stratigraphic and structural architecture of the mineral system 4. timing and locations of fluid migration pathways The seismic survey obtained 25 km of 10 fold CMP (common midpoint) regional reflection seismic data along two traverses and 8 km of 10 fold CMP high resolution reflection seismic data along another two traverses. The data are of good quality and similar to both the 1991 and 1999 Eastern Goldfields reflection seismic data to the north and south of the survey area. The major outcome of imaging the four localities included mapping the Golden Mile and Boulder-Lefroy Faults, and the Boorara Shear at depth. This new information indicates the Golden Mile Mine was fed by a suite of relatively minor faults dangling off the major crustal-scale Boorara Shear. The dangling element relates to percolation theory. The detachment surface was imaged on all seismic traverses. Thrust duplexes were interpreted above the detachment surface.

<p>In 1997, Geoscience Australia and the Tectonics Special Research Centre (TSRC) at the University of Western Australian (UWA) and Curtin University conducted a joint research project to image the crustal setting of the Hamersley Province of northern Western Australia. This joint research was aimed at investigating the shallow structure of the Hamersley Province, the regions deeper basement structure and in so doing, developing an understanding of the region's tectonics and possible fluid migration pathways. The project's objectives were to obtain a better understanding of sub-surface geology of the Hamersley Province at a regional scale and a mine scale and relate this to the area's iron-ore mineral system. In particular, the project's objectives were to provide more information on: 1. regional crustal thickness and major features, 2. stratigraphic architecture of the regions mineral system, 3. structural architecture of the mineral system, 4. timing and locations of fluid migration pathways. The seismic survey obtained 136 km of nominally moderate fold CMP (common midpoint) deep reflection seismic data along two transects over approximately 5 weeks of acquisition.