AndreaBozzo/ceres-open-data-index huggingface dataset:
Philippines Marine Seismic Survey Project Cruise Report : Project 123.03 (Survey 109)

During March to May 1992, the Australian Bureau of Mineral Resources (BMR)and the Philippine Office of Energy Affairs (OEA) conducted a joint marineseismic and sniffer survey in four Philippine offshore sedimentary basins. Theproject was funded by the Australian International Development AssistanceBureau (AIDAB), and the survey was conducted using the Australiangovernment's geoscience research vessel Rig Seismic. A total of 2750 km of192-channel seismic data, plus geochemical sniffer, gravity, magnetic andbathymetric data was obtained jointly. This comprised 580 km in the NEPalawan Shelf, 730 km over the Cuyo Platform, 490 km in Tayabas Bay, and950 km in Ragay Gulf. Because of the extensive fishing activities at night time,particularly in Ragay Gulf, acquisition of seismic data after dark was abandonedin the latter part of the survey. During these hours the geochemical sniffer program was continued over identified anomalies, and an additional 900 km of sniffer, gravity and bathymetry data were recorded.

Although not a lot can be deduced before the seismic data are processed, theship-board seismic monitors show plenty of structuring, and deep depocentreswith up to 4 seconds of stratified section. Because the weather during thesurvey period was very calm and therefore conducive to the collecting of low-noise data, the quality of the processed sections is expected to be excellent.

Geochemical anomalies were recognised in the NE Palawan Shelf and in RagayGulf. These were particularly significant in Ragay Gulf and were related to: (1)previously identified prospects (ie R-1 and R-2 in the 0EA-World Bank Report,and the Alibijaban prospect identified by Far East Resources); (2) faults; and (3)deep diapir structures. They fall into two distinct anomaly types: type 1 is
characterised by high methane, ethane and propane with traces of butane andpentane, indicating dry to wet thermogenic gas; type two has high methane andtraces of C2+, indicating very dry gas.

In order to better understand the flux rate of hydrocarbon release and thecomponent fractionation and magnitude of the source of the seep, Ragay Gulfwas revisited after the seismic shooting was completed. Here, eightgeochemical vertical profiles were recorded and 28 gas samples collected forisotope analysis. In one example, hydrocarbons were concentrated under thethermocline at about 140 m water depth.

The newly acquired data will be processed in BMR, integrated with existing seismicand well data from previous industry sources, interpreted and analysed for petroleumpotential. The final analysis, together with basic data, will then be presented to theexploration industry, initially in the Philippines and Australia, and laterinternationally, in order to promote further exploration.

Tags: Earth Sciences, GA Publication, Published_External, Record, marine, marine survey, petroleum exploration, seismics
Organization: Australian Ocean Data Network
Geography - Placenames (Gazetteer)

The Gazetteer of Australia is the authoritative data source providing information on the location and spelling of approved place names on the Australian mainland extending to the 3 mile marine limit, together with its external territories, except the Australian Antarctic Territory. Contains all the authorised place names covering Australia's land and offshore areas. The 2010 release consists of over 300,000 place names. The Gazetteer is compiled by the Geospatial and Earth Monitoring Division of Geoscience Australia, on behalf of the Committee for Geographical Names in Australasia (a committee of the Intergovernmental Committee on Surveying and Mapping (ICSM)). Data is sourced from the relevant State and Territory jurisdictions (ACT, NSW, NT, QLD, SA, TAS, VIC, WA) along with various Australian Government agencies (Australian Antarctic Division, Australia Hydrographic Service, and Geoscience Australia).

Tags: AU, DC2020, Database, Earth Sciences, Published_External, land, mapping
Organization: Australian Ocean Data Network
Canning Basin hydrogeological inventory

This Canning Basin dataset contains descriptive attribute information for the areas bounded by the relevant spatial groundwater feature in the associated Hydrogeology Index map. Descriptive topics are grouped into the following themes: Location and administration; Demographics; Physical geography; Surface water; Geology; Hydrogeology; Groundwater; Groundwater management and use; Environment; Land use and industry types; and Scientific stimulus.

The Canning Basin, characterized by mostly Paleozoic sedimentary rocks with a maximum thickness of over 15,000 m, went through four major depositional phases from Early Ordovician to Early Cretaceous. The basin contains two main depocenters, the Fitzroy Trough-Gregory Sub-basin in the north and the Willara Sub-basin-Kidson Sub-basin in the south. The depositional history includes marine, evaporite, fluvial, deltaic, glacial, and non-marine environments.

The basin's evolution began with extension and rapid subsidence in the Early Ordovician, followed by a sag stage with evaporite and playa conditions in the Late Ordovician and Silurian. The Devonian to Early Carboniferous phase involved marine, reef, fluvio-deltaic, and terrestrial sedimentation in the north and marginal marine to terrestrial systems in the south. The Late Carboniferous to mid-Triassic period saw non-marine and marine settings, including glacial environments.

The basin then experienced mid-Jurassic to Early Cretaceous deposition, mainly in deltaic and non-marine environments. Throughout its history, the Canning Basin encountered multiple tectonic phases, including extension, compression, inversion, and wrench movements, leading to various depositional settings and sediment types.

Around 250 petroleum wells have been drilled in the basin, with production mainly from Permo-Carboniferous sandstones and Devonian carbonates. Several proven and untested plays, such as draped bioherms, anticlinal closures, and fault blocks, provide potential for hydrocarbon exploration. Late Carboniferous and Jurassic mafic sills intersected in wells indicate additional geological complexity. Additionally, some areas of the Canning Basin are considered suitable for CO2 storage.

Tags: Basin Analysis, EARTH SCIENCES, ECOLOGY, ENVIRONMENTAL SCIENCES, Environmental Management, Exploring for the Future, GEOLOGY, Groundwater, Hydrogeology, Land Use and Environmental Planning, National Groundwater Sytems, National Hydrogeological Inventory, PHYSICAL GEOGRAPHY AND ENVIRONMENTAL GEOSCIENCE, Published_External, Sedimentology, Stratigraphy (incl. Biostratigraphy and Sequence Stratigraphy)
Organization: Australian Ocean Data Network
National Base Map - GreyScale MapServer

This service is produced for the National Map project.  It provides seamless topographic greyscale mapping for the whole of Australia, including the external territories of Cocos (Keeling) Islands, Christmas Island, Norfolk Island and Lord Howe Island.  The service consists of Geoscience Australia data at smaller scales and OpenStreetMap data is used at larger scales. The service contains layer scale dependencies.

Tags: Australia, Earth Sciences, MapServer, Published_External, basemap, map, topography, web mapping, web service
Organization: Australian Ocean Data Network
RV Investigator Voyage IN2018_C01 EM710 MKII Multibeam Echosounder Data

This record describes multibeam echosounder data collected on RV Investigator voyage IN2018_C01, 'RAN Hydrographic Survey' which departed Hobart on the 28th May 2018 and returned to Hobart on the 8th June 2018. The overall focus for this survey was to conduct a modern survey in the primary shipping route through Bass Strait and to To facilitate safe navigation for international and coastal shipping.

The Kongsberg EM710 MKII multibeam echosounder was used to acquire seafloor bathymetry and backscatter information (and watercolumn backscatter) near Wilson's Promontory in Bass Strait and during the transit from and to Hobart.

The EM710 MKII provides a 0.5° by 1° transmit and receive angular resolution respectively. The echosounder's nominal frequency range is from 40 to 100 kHz.

Data are stored in .all raw format for bathymetry and backscatter and .wcd format for watercolumn backscatter at CSIRO. There are 372 files totalling 119 GB of raw bathymetry &amp; backscatter data, and 241 files totalling 269 GB of raw watercolumn data in this dataset.

Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.all format are corrected for motion and position.

Tide corrections were applied to the processed data. Processed data has had outliers removed. Processed line data are available in *.gsf and ascii format, and processed bathymetry and backscatter grids in geotiff format.

Additional information regarding this dataset, including further information on processing streams, is contained in the GSM data acquisition and processing report. Additional data products may be available on request.

Organization: Australian Ocean Data Network
CO2 storage prospectivity of the offshore Vlaming Sub-basin : evaluating containment risk

As part of the National CO2 Infrastructure Plan (NCIP) Geoscience Australia is undertaking evaluation of the Gage Sandstone and the overlying South Perth Shale for the long-term storage of CO2.  Initial assessment of the seismic data identified widespread fault reactivation and seismic anomalies potentially indicating hydrocarbon seepage. Some of the seismic anomalies clearly correlate with reactivated faults, but not all of them. The study highlights the importance of developing a detailed understanding of spatial variability in seal quality and history of fault reactivation both for petroleum exploration and CO2 storage assessments.

Tags: Earth Sciences, GA Publication, Poster/Image, Published_External, geological storage of CO2, marine
Organization: Australian Ocean Data Network
An Integrated Study of the CO2 Storage Potential in the Offshore Vlaming Sub-Basin: Results of the study undertaken as part of the NCIP program

As part of the National CO2 Infrastructure Plan (NCIP) between 2011 and 2014 Geoscience Australia undertook a comprehensive study in the offshore Vlaming Sub-basin to provide new pre-competitive data and information to underpin potential CO2 storage solutions. 
The Vlaming Sub-basin is a Mesozoic depocentre within the southern Perth Basin located about 30 km west of Perth. It covers an area of approximately 23,000 km2 and contains up to 14 km of sediments. The basin lies close to industrial sources of CO2 emissions in the Perth area and contains a number of reservoir-seal pairs potentially suitable for CO2 storage. The Gage Sandstone and the overlying South Perth Shale (SPS) deposited as part of the early post-rift succession are considered the most prospective reservoir-seal pair. Previous assessments of this basin indicated that up 1 GT of CO2 can be stored in the Gage Sandstone reservoir. However, lack of interest in the 2009 Greenhouse Gas acreage release in the Vlaming Sub-basin showed that a more detailed assessment is required.
This study addresses critical scientific issues underpinning CO2 storage potential of the Vlaming Sub-basin that were not sufficiently explored previously. These include:
-   better characterisation of the reservoir heterogeneity;
-   detailed understanding  of the seal quality and integrity; 
-   a more accurate estimate of the practical storage capacity and, 
-   an accurate environmental baseline and potential issues of environmental concern 
Overall the study confirmed suitability of the Gage Sandstone reservoir for long-term storage of CO2 and provided a more accurate delineation of the suitable storage sites. At the same time it highlighted the importance of careful consideration of the containment and potential environmental impact in any future CO2 storage projects.

Tags: Earth Sciences, GA Publication, Published_External, Record, marine
Organization: Australian Ocean Data Network
Geological evolution, tectonic style, and economic potential of the lawn hill platform cover, northwest Queensland

The Lawn Hill Platform Cover comprises a sequence of mildly deformed Proterozoic sediments and volcanics that crop out northwest of Mount Isa. Three subdivisions are recognised in the sequence: basal coarse clastics and acid and basic volcanics - the Bigie Formation and Fiery Creek Volcanics. They are overlain unconformably by fine to coarse fluvial and shallow marine clastics (the Surprise Creek Formation). The third, uppermost, and major subdivision of the platform cover, the McNamara Group, overlies the Surprise Creek Formation with minor unconformity. It consists of basal clastics, a thick sequence of carbonates, and an upper deep-water clastic sequence. The Lawn Hill Platform Cover is deformed into basins and domes, commonly intersected by major northeast and northwest-trending faults. Economic Cu, Pb and Zn sulphide deposits within the Lawn Hill Platform Cover are concentrated at two main stratigraphic horizons in the lower middle McNamara Group. The main deposits are associated with carbonaceous shales or laminated algal dolomite, suggesting that they may be formed by reduction of base metal rich solutions at an early diagenetic stage by the action of decaying algal material.

Tags: Earth Sciences, GA Publication, Journal, Published_External, QLD
Organization: Australian Ocean Data Network
The Potential Impact of Bedform Migration on Seagrass Communities in Torres Strait, Northern Australia

Seagrass communities in the northwest of Torres Strait are known to disappear episodically over broad areas. Sediment mobility surveys were undertaken within two study areas during the monsoon and trade wind seasons, in the vicinity of Turnagain Island, to find out if the migration of bedforms could explain this disappearance. The two study areas covered sand bank and sand dune environments to compare and contrast their migration characteristics. Repeat multibeam sonar surveys were used to measure dune-crest migration during each season.

Tags: AU-QLD, Earth Sciences, External Publication, Published_External, Scientific Journal Paper, marine, marine survey, seabed
Organization: Australian Ocean Data Network
Compilation of geological and bore hole data from south-western Victoria and the contiguous part of South Australia with particular reference to the Portland - Nelson - Mt Gambier area

The area under review in this report comprises a large territory located in south-western Victoria and south-eastern South Australia. The scope of direct geological information in the areas underlain by marine Tertiary rocks is severely limited, by very poor exposure of the underlying rocks at the surface. Under such conditions, once the scattered exposures have been examined and recorded on the map, little more can be done by surface work; the geologist is thrown back on a study of well and bore records and of the results of geophysical measurements. Considerable literature has been read and records of the principal bores in the area have been examined in detail. It has been recommended that a geophysical survey of the area be conducted, to determine, if possible, any structural features which might exist at depth in this southern-most extension of the Murray River Artesian Basin, which is made up of Tertiary to Recent formations, resting, in the area under review, on a basement of Pre-Cambrian or Jurassic Rocks. This report comprises an overview of the general geology, geological history, stratigraphy and topography of the area under consideration. Geological, bore-hole and well data has been compiled and tabulated. A geological sketch map is included.

Tags: AU-SA, AU-VIC, GA Publication, Geology, Published_External, Record, data, geology, research, stratigraphy, structural geology, topography
Organization: Australian Ocean Data Network
The geology of the Birdsville 4-mile sheet area, Queensland

The mapping of the Birdsville 4-mile Sheet area and examination of water bore logs established a sequence of at least 3,000 feet of Mesozoic sediments, unconformably overlain by Tertiary rocks which have a maximum thickness of 100 feet. The Mesozoic rocks form the main aquifer and the impermeable cap in the western portion of the Great Artesian Basin. The marine shales of the Wilgunya Formation are possible source rocks for petroleum. Source rocks occur in the Lower Palaeozoic sequence to the north, in the Boulia 4-mile area. The only known reservoir rocks are the sandstones of the Lower Cretaceous Longsight Sandstone. Neither oil nor gas has been reported from any of the water bores in the area. Showings were encountered in the Bedourie Bore, 120 miles north of Birdsville, and in the Delhi Frome Santos Betoota No. 1 Well, 100 miles east of Birdsville. No important structures or economic mineral deposits are present in the area.

Tags: AU-QLD, Earth Sciences, GA Publication, Published_External, Record, geology
Organization: Australian Ocean Data Network
Seascapes of the Australia Margin and Adjacent Sea Floor: Methodology and Results

This report describes the iterative methods used to create the seascapes, including a detailed appendix documenting the different datasets used in the different planning zones. Creating the seascapes is necessarily an iterative process whereby the available datasets are combined in different combinations, or added as they become available, using an unsupervised 'crisp' ISOClass classification in ERMapper. In each classification only biophysical properties that have consistent and definable relationships with the benthic biota and are known in sufficient detail across Australia's entire marine region are used to create the seascapes. An initial validation of the classification technique has been undertaken on a subset of the data for the shelf surrounding Tasmania using an alternative unsupervised 'fuzzy' classification. Results of this validation indicate that the unsupervised classification methodology provides consistent and reliable classes for defining the seascapes.

Tags: AU-EEZ, Earth Sciences, GA Publication, GIS, Published_External, Record, continental margins, geomorphology, marine, resource assessment
Organization: Australian Ocean Data Network
The Ngalia Basin, Northern Territory: stratigraphy and structure

The Ngalia Basin comprises Adelaidean and Palaeozoic, mainly arenaceous sediments, up to 
about 5 km thick, preserved in an intracratonic downwarp in Lower and Middle Proterozoic igneous and metamorphic basement rocks. 
The maximum known thicknesses of sediments are Adelaidean, 3200 m; Cambrian, 800 m; probable Ordovician, 300 m; and Devono 
Carboniferous 3100 m; but a complete sequence is not present in any one area. The basin sequence is largely concealed by 
Cainozoic deposits, except for a belt of folded sediments along parts of the northern margin and narrow quartzite ridges 
along the southern margin.Unconformities in the Ngalia Basin sequence record nine alternate periods of sedimentation and 
diastrophism between Adelaidean and late Palaeozoic time. The major unconformities which record these periods of diastrophism 
divide the succession into four early tectosomes of continental and marine sedimentation and two later tectosomes of continental 
sedimentation. Until Devonian time the basin was part of a much larger sedimentary or structural province. Subsequent major 
latitudinal uplifts to the north and south of the present basin margins formed an ancestral basin outline. 
These uplifts were the provenance for a thick clastic wedge, comprising the youngest sequence in the basin. A major orogeny in the Carboniferous folded and thrusted the sediments and thin Tertiary lacustrine and fluvial sediments were deposited on the eroded basin surface. Seismic data indicate that the basin is essentially a faulted easterly trending asymmetrical syncline in which the thickest sediments are preserved towards the northern margin, where north-to-south thrusting has controlled the structural framework of the basin. Major faults and thrusts outline the main structural divisions of the basin. The northern margin in the west is formed by two thrust nappes, which are partly separated from a gently basinward-inclined platform in the south by a wide fault trough. Farther east, sinusoidal horsts and grabens dominate the structure in the centre of the basin. In the east the thick sedimentary pile at the northern margin is truncated by a thrust. The large number of unconformities and the absence of demonstrated good source rocks in the sequence reduce the petroleum potential of the basin. However, a probably thick and more complete Palaeozoic sequence in the subsurface may have some potential. Uranium mineralisation confined to the Devono-Carboniferous continental sandstone is the most important potentially economic mineral deposit. Water supply is principally from bores, but quality varies considerably; Devono-Carboniferous arenaceous sediments have yielded potable water, and Cainozoic rudites have yielded large flows of stock water.

Tags: AU-NT, Bulletin, Earth Sciences, GA Publication, Published_External, stratigraphy, structural geology
Organization: Australian Ocean Data Network
Benthic sediment surveys of inner Darwin Harbour (GA0358) and shallow water areas in and around Bynoe Harbour (GA0359) in 2017: Core Incubation Experiments on seabed sediments

Benthic sediment sampling of Inner Darwin Harbour (GA0358) and shallow water areas in and around Bynoe Harbour (GA0359) was undertaken between May 29 and June 19, 2017. Partners involved in the surveys included Geoscience Australia (GA), the Australian Institute of Marine Science (AIMS) and the Department of Environment and Natural Resources within the Northern Territory Government (NT DENR) (formerly the Department of Land and Resource Management (DLRM)). These surveys form part of a four year (2014-2018) science program aimed at improving knowledge about the marine environments in the regions around Darwin and Bynoe Harbour’s through the collection and collation of baseline data that will enable the creation of thematic habitat maps to underpin marine resource management decisions.  This project is being led by the Northern Territory Government and is supported by the INPEX-led Ichthys LNG Project, in collaboration with - and co-investment from GA and AIMS. This dataset comprises area-based rates of total carbon dioxide production and oxygen uptake in marine sediments.

Tags: Published_External, continental shelf, geochemistry, marine, marine baselines, marine survey, seabed
Organization: Australian Ocean Data Network