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>

The dataset was created by Geoscience Australia using the framework described in Section 33 of the Offshore Minerals Act 1994. The international, scheduled areas and coastal waters used in this dataset are those found in the historical Australian Maritime Boundary Dataset 2006 (AMB2006). The dataset is comprised of both polygons and points created to very high precision, accurate to within millimetres. The blocks have been cut by Australia's international boundaries, the scheduled areas and the coastal waters. Each block is assigned a polygon, including partial blocks. All blocks are titled with their block ID, and a list of vertices that make up the blocks. Each vertex of the dataset is also replicated as a discrete point in the points dataset. The design of the dataset allows for the exact location of every vertex to be known to millimetre precision. The corner coordinates of blocks are now defined to a high precision, and can be found by querying the appropriate point. The blocks are attributed with fields containing information on: -Block ID -Parent 1 Million Mapsheet -Offshore Area -Epoch of the boundaries used to cut the data AMB2006 -Datum -Origin of the mapsheet in AGD66 -The position of all vertices in the block -The number of vertices in the block -The area of the block in acres -The area of the block in hectares The calculation used to find the area of the blocks is estimated to be precise to better than 1%. This is considered to be sufficient as under the permit and licensing arrangements in the Offshore Minerals Act, the area of a block has no relevance. Therefore the area figure is provided solely for reference. This dataset is published with the permission of the CEO, Geoscience Australia

Processed seismic data (SEG-Y format) and TIFF images for the 2009 Rankins Springs Extension Seismic Survey (L188), acquired by Geoscience Australia (GA) under the Onshore Energy Security Program (OESP), in conjunction with the New South Wales Department of Primary Industries (NSWDPI). Stack and migrated data are included for line 09GA-RS2, as well as CDP coordinates. Raw data for this survey are available on request from clientservices@ga.gov.au

Record for source data hosted in the National Spectral Database (NSD) Aquatic Library Citation: Rodney Borrego-Acevedo, Chris M. Roelfsema, Stuart R. Phinn & Alistair R. Grinham (2014) Predicting distribution of microphytobenthos abundance on a reef platform by combining in situ underwater spectrometry and pigment analysis, Remote Sensing Letters, 5:5, 461-470, DOI: 10.1080/2150704X.2014.922723 For further information and instructions to access the database go to the following URL: https://cmi.ga.gov.au/data-products/dea/643/australian-national-spectral-database

Record for source data hosted in the National Spectral Database (NSD) Aquatic Library Citation: Harvey MJ (2009) Development of techniques to classify marine benthic habitats using hyperspectral imagery in oligotrophic, temperate waters [PhD thesis p280]. Perth, Western Australia: Murdoch University. 280 p. For further information and instructions to access the database go to the following URL: https://cmi.ga.gov.au/data-products/dea/643/australian-national-spectral-database

As a contribution towards the assessment of the oil potential of the Canning Basin, the Bureau carried out a seismic survey in July, 1955 along a traverse to the north-west of Lansey's Cross ing in the Kimberley Division of Western Australia. There is a considerable thickness of sedimentary rocks, probably exceeding 20,000 feet, in the nearby Fitzroy Basin, but little is known of the structure of the Canning Basin. The object of the survey was to obtain information on the thickness of the sedimentary rocks in this part of the Basin and on thc geologicul structure of the sedimentary rocks at depth. The results show that near Langey's Crossing the thicknes s of the sedimentary rocks probably exceeds 16,000 feet and may exceed 20,000 feet. The traverse was oblique to the assumed. direction of the axes of the major structure in the basin and results indicate that it crosses the axis of what appears to be a broad syncline of low relief.

In September 2002 a medium resolution seismic reflection survey was undertaken at the St Ives gold field, Western Australia. Trace Energy Services was contracted by the Australian National Seismic Imaging Resource (ANSIR) to conduct the St Ives Victory Survey. The survey uses two Hemi60 vibrators and an ARAM24 acquisition system. The data were processed, and correlated with drillhole geology and drillhole geophysics to facilitate interpretation. The seismic sections demonstrate that seismic reflection is effective at imaging stratigraphy and structure in Archaean terrains, even at relatively shallow depths (less than 500m). A package of strong reflections is associated with the mafic stratigraphy at St Ives.

In November 1964, the Bureau of Mineral Resources Seismic Party No. 1 carried out a velocity survey in CBMR 12 (Cockroach) Well, Northern Territory, which had been drilled to 4000 feet and logged using sonic and other logging methods. The time/depth values obtained in the velocity survey were in good agreement with those obtained by integration of the sonic log. A curve showing the variation with time-of'the coefficient of reflection calculated from the sonic log showed an outstanding feature, which appeared to correlate with the best reflection recorded on an experimental seismic traverse nearby. According to the geological interpretation of the well log, this reflection arises from velocity changes near the boundary of the ArrinthrungaTormation and the Marqua Beds at a depth of 2,721 feet.

A reconnaissance seismic survey was made in the area of Quilpie and Et.omanga in south-western Queensland. Traverses crossed the Harkaway, Pinkilla, and Tallyabra Domes. Reflection horizons were correlated with horizons within the Mesozoic sediments, and one persistent reflection was correlated with a horizon near the top of the Palaeozoic sediments. A thickness of sediments of up to 15,000 ft, including up to 11,000 ft of Palaeozoic rocks, was indicated on the flanks of the Harkaway and Pinkilla Domes. Results were compared with existing gravity data. Suggestions of faulting are based on seismic and gravity evidence taken together and also on gravity evidence alone in locations not covered by the seismic work.