AndreaBozzo/ceres-open-data-index huggingface dataset:
Continental Shelf Record of the East Antarctic Ice Sheet Evolution: Seismo-stratigraphic Evidence from the George V Basin

The late Quaternary ice sheet/ice shelf extent in the George V Basin (East Antarctica) has been reconstructed through analyses of Chirp sub-bottom profiles, integrated with multi-channel seismic data and sediment cores. Four glacial facies, related to the advance and retreat history of the glaciated margin, have been distinguished: Facies 1 represents outcrop of crystalline and sedimentary rocks along the steep inner shelf and comprises canyons once carved by glaciers; Facies 2 represents moraines and morainal banks and ridges with a depositional origin along the middle-inner shelf; Facies 3 represents glacial flutes along the middle-outer shelf; Facies 4 is related to ice-keel turbation at water depths &lt;500 m along the outer shelf. A sediment drift deposit, located in the NW sector of the study area, partly overlies facies 2 and 3 and its ground-truthing provides clues to understanding their age. We have distinguished: 
a) an undisturbed sediment drift deposit at water depth &gt;775 m, with drape/sheet and mound characters and numerous undisturbed sub-bottom sub-parallel reflectors (Facies MD1); 
b) a fluted sediment drift deposit at water depth &lt;775 m, showing disrupted reflectors and a hummocky upper surface (Facies MD2). Radiocarbon ages of sediment cores indicate that the glacial advance producing facies MD2 corresponds to the Last Glacial Maximum (LGM) and that during the LGM the ice shelf was floating over the deep sector of the basin, leaving the sediment drift deposit undisturbed at major depths (Facies MD1). This observation further implies that: 
a) glacial facies underneath the sediment drift were the result of a grounding event older than the LGM, 
b) this sector of the East Antarctic fringe was sensitive to sea-level rise at the end of the LGM; 
thus potentially contributing to meltwater discharge during the last deglaciation.

Tags: AQ, Antarctic data, Earth Sciences, External Publication, Published_External, Scientific Journal Paper, geomorphology, marine, sedimentary basins
Organization: Australian Ocean Data Network
BMR Research Newsletter 4

Titles in this newsletter:
Transpressional strike-slip faulting in the Mount Isa Inlier
Sedimentary phosphate discovered on the South Tasman Rise
Honour: Dan Bubela
Deep-tow side-scan sonar: a new tool for seafloor studies
Australian Iron Ore Industry Mission to Brazil, July 1985
Polymetallic nodules: a commercial product or a collectors' item?
Erratum: BMR Report 268, Australian Geoscience 1984
Location of the southmagnetic pole737 
The Nth-root stack: a process for enhancing the interpretation of geophysical data
The oldest age determined for Pilbara greenstones
The Ocean Drilling Program: proposed Australasian sites
Mineral potential of the southwest Pacific
Northeast Australia research cruises
Proof of explosive origin for the Lawn Hill circular structure
BMR seismic line in SE Queensland probes shallow and deep sedimentary basins
Lord Howe Rise cruise: data release
Towards the completion of reconnaissance aeromagnetic coverage of Australia
Honour: Peter Davies
Forthcoming publication: Uranium - world perspective
Farewell: Cliff Oilier
Research on radioisotope-rich granites
International Volcanological Congress, New Zealand: Explosive volcanism, geochemistry, hazards, and metallogenesis
US/Australia Joint Scanner Project: Technological advances in remote sensing applied in Australia
Otway Basin: Processing of recent regional marine seismic data nears completion
Archaean volcanics in the Pilbara Block: Petrogenetic, tectonic, and economic implications of a trace-element study

Tags: Earth Sciences, GA Publication, Published_External, Research Newsletter
Organization: Australian Ocean Data Network
Geophysical Technique Mix to Resolve Offshore Basement Problems

The basement beneath Australia's offshore basins was the cradle for sediments involved in oil and gas formation. Knowledge of basement depth, boundaries and evolution provides clues to the petroleum potential of Australia's sedimentary basins. 

The problem is finding the right combination of geophysical techniques to define basement offshore, and knowing what adjustments to make to reduce unwanted effects in definition.

Geoscience Australia's Alexey Goncharov outlines his team's exciting new basement and crustal studies that are tackling the problems.

Tags: AUSGeo News Article, Earth Sciences, GA Publication, Published_External, geophysics, marine
Organization: Australian Ocean Data Network
Chlorophyll-a Data collected during RV Investigator voyage IN2024_T01

This record describes a chlorophyll-a dataset collected during the Marine National Facility (MNF) RV Investigator voyage IN2024_T01, titled "Fremantle to Hobart, 2024 Transit." The voyage took place between 9 March and 20 March 2024 (AEST), departing Fremantle and concluding in Hobart. The dataset comprises in vitro fluorometric chlorophyll-a analyses of phytoplankton pigments obtained from both underway seawater sampling and conductivity-temperature-depth (CTD) collections. These measurements provide an indicator of phytoplankton biomass and variability along the transit track and at discrete sampling depths. The dataset contributes to understanding spatial patterns of marine primary productivity and supports oceanographic, ecological, and biogeochemical studies in southern Australian waters.

Organization: Australian Ocean Data Network
SI 1031 Cape Leeuwin, WA (HIPP) Bathymetry Acquisition (20220015S)

The Cape Leeuwin bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Mermaid Searcher during the period 5 Dec 2022 – 4 Apr 2023. This was a contracted survey conducted for the Australian Hydrographic Office by MMA Offshore as part of the Hydroscheme Industry Partnership Program. The survey area encompases an area in Cape Leeuwin, WA. Bathymetry data was acquired using a  Kongsberg EM2040P, and processed using  CARIS HIPS and SIPS processing software. The dataset was then exported as a 30m resolution, 32 bit floating point GeoTIFF grid of the survey area.

This dataset is not to be used for navigational purposes.

Tags: AusSeabed, EARTH SCIENCES, Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry, HVC_144641, Oceans, Published_External, bathymetric grids, bathymetry, multibeam
Organization: Australian Ocean Data Network
The geology of the Sau River and environs, New Guinea

An area of approximately 800 square miles in the Western Highlands of New Guinea was mapped during a reconnaissance geological survey in 1959. Non-metamorphic Jurassic fine-grained marine sediments and Lower Cretaceous volcanics are faulted against an Eocene to Pliocene sequence of marine sediments and volcanics; these rocks are openly folded along northwest trending axes and dislocated by two major north-west trending faults. Pleistocene basic volcanics and alluvial deposits are the youngest rocks. A large basic pluton which intrudes Miocene and older rocks is the source of gold, platinum, and minor copper mineralisation.

Tags: Earth Sciences, GA Publication, PG, Published_External, Record, geology
Organization: Australian Ocean Data Network
Offshore Petroleum and Greenhouse Gas Storage Act 2006 - Australian Maritime Boundaries 2014a (AMB2014a) - Geodatabase

Geoscience Australia has the primary role in the delineation of Australia's domestic and international maritime limits and boundaries. An output of this activity is the development of the Australian Maritime Boundaries (AMB) data. AMB2014 is a GIS data product, replacing AMBIS 2006, providing access to the data for Australia's maritime zones. Offshore Petroleum and Greenhouse Storage Act 2006 - Australian Maritime Boundaries Dataset 2014 is a digital representation of the scheduled and offshore areas defined under this Act. In the event of an inconsistency between AMB data and the limits under any legislation, the latter prevails. The data have been published by Geoscience Australia in consultation with other relevant Commonwealth Government agencies including the Attorney-General's Department, the Department of Foreign Affairs and Trade and the Australian Hydrographic Office. 

This version contains a number of technical amendments made on the basis of user feedback. These include:
- Harmonisation of maritime boundaries, scheduled area and graticular block datasets in block SC51

Offshore Petroleum and Greenhouse Storage Act 2006 - Australian Maritime Boundaries Dataset 2014 comprise the scheduled and offshore areas defined under the Act. AMB Data can also be viewed on-line via AMSIS (http://www.ga.gov.au/marine/jurisdiction/amsis.html). Product Specifications Coverage: Australia including all external territories Currency: May 2014. Coordinates: Geographical Datum: GDA94 (functionally equivalent to WGS84). Format: ESRI Geodatabase and REST web service - free online.

The area of coverage of the AMB data is for the whole of the Australian marine jurisdiction which includes waters adjacent to the mainland, offshore islands and External Territories.  The geographical extent is approximately between the latitude limits of 8 S to 70 S and the longitude limits 39 E to 174 E.

This dataset includes the following disclaimers:
AMB data is a digital representation of the territorial sea baseline and of the outer limits of Australia's maritime zones.  The baseline and zones are established under the Offshore Petroleum and Greenhouse Storage Act 2006.  In the event of an inconsistency between AMB data and the areas under the legislation, the latter prevails.

Tags: AU, GIS Dataset Thematic, Geospatial Information Systems, HVC_144653, Published_External, marine
Organization: Australian Ocean Data Network
The ecology and morphology of sponges and octocorals in the northeastern Joseph Bonaparte Gulf

The Joseph Bonaparte Gulf (JBG) is an offshore area in northern Australia, with active petroleum exploration and infrastructure development. The Van Diemen Rise, an area of raised banks and channels in the northeastern region of the JBG, has been proposed for protection as part of the Oceanic Shoals Commonwealth Marine Reserve. However, baseline information for much of this area is lacking, including spatial and environmental patterns of biological communities. This study uses still imagery of the sea floor in four study areas across the Van Diemen Rise, collected during two seabed mapping surveys conducted by Geoscience Australia and the Australian Institute of Marine Science, in 2009 and 2010. Based on these analyses benthic communities are characterised, and important species and morphological groups are compared with a number of abiotic variables. In so doing, a preliminary assessment is given as to which abiotic variables make the most appropriate surrogates for characterising benthic communities in the region. A number of variables are found to correlate significantly and strongly with some of the biological groups determined in this study. Pheophytin, Si/Al and mud content correlate with the large habitat forming species Mopsella sp., Ianthella sp. and Xestospongia sp. respectively. Backscatter signals from multibeam sonar surveys correlate very strongly with depth and also to some degree with a number of the functional growth forms of sponges. Based on the positive results of this preliminary data investigation, it is recommended that non-linear modelling and robust multivariate analyses be applied to the data set to investigate more complex relationship. This study provides baseline information on the ecology and morphology of key habitat-forming organisms in the northeastern Joseph Bonaparte Gulf which will be facilitate marine monitoring programs for reserve management and environmental impact assessments for industry activity.

Tags: Earth Sciences, GA Publication, NERP, Published_External, Record, mapping, marine, marine biodiversity, marine survey
Organization: Australian Ocean Data Network
Sediment Core from Beneath the Amery Ice Shelf, East Antarctica, Suggests Mid-Holocene Ice-shelf Retreat

The stability of floating ice shelves is an important indicator of ocean circulation and ice-shelf mass balance. A sub-ice -shelf sediment core collected during the Austral summer of 2000-2001 from site AM02 on the Amery Ice Shelf, East Antarctica, contains a full and continuous record of glacial retreat.

Tags: AQ, Antarctic data, Earth Sciences, External Publication, Published_External, Scientific Journal Paper, marine
Organization: Australian Ocean Data Network
Benthic Marine Bioregionalisation of Australia's Exclusive Economic Zone: A Report to the National Oceans Office on the Development of a National Benthic Marine Bioregionalisation in support of Regional Marine Planning

The benthic (sea floor) component of the National Marine Bioregionalisation covers the 80% of Australia's Exclusive Economic Zone that lies beyond the continental shelf break. It provides a description of patterns of biological distributions and physical habitats on the seafloor.

The Benthic Bioregionalisation Report is a technical document describing how the benthic bioregions were created. It includes descriptions of all the datasets used, details of each bioregion, and examples of how the physical data may be used to sub-divide the marine bioregions for management. An evaluation of the benthic bioregionalisation including strengths, weaknesses and future work is also contained in the report.

Tags: AU-EEZ, Earth Sciences, External Publication, Published_External, Report, marine, marine survey
Organization: Australian Ocean Data Network
Petrel Sub-basin Marine Survey (GA-0335 / SOL5463) (NLECI Program) - Ecology / Seabed underwater video footage and still images

The Petrel Sub-basin Marine Survey GA-0335 (SOL5463) was acquired by the RV Solander during May 2012 as part of the Commonwealth Government's National Low Emission Coal Initiative (NLECI). The survey was undertaken as a collaboration between the Australian Institute of Marine Science (AIMS) and GA. The purpose was to acquire geophysical and biophysical data on shallow (less then 100m water depth) seabed environments within two targeted areas in the Petrel Sub-basin to support investigation for CO2 storage potential in these areas.

Underwater video footage and still photographic images (12 megapixel resolution) from towed-video were acquired from 11 stations. The quality of imagery varies among transects and some still images were not of suitable quality for analysis. No still images are available for stations 2, 4 and 7 due to system malfunction. Video and still image files and associated parent folders are named by station number, gear code (CAM = underwater camera system) and then the deployment number. For example 'STN08CAM06' would represent a video transect from Station 08 that was the 6th video transect of the survey. Please note that the Ultra-short Baseline (USBL) acoustic tracking system used to track the towed-camera system failed early in the survey; hence geo-location of video transects and stills could only be linked to the R.V. Solander's ship navigation.

Tags: AU-NT, CO2 capture, HVC_144640, Marine Data, Marine Geoscience, Published_External, Sub bottom profiles, environmental, habitat, marine, marine survey
Organization: Australian Ocean Data Network
SI 1048 Western Approaches to Broome (HIPP SI 1048) Bathymetry 2024 (20240006S)

This is a contracted survey conducted for the Australian Hydrographic Office by EGS Australia as part of the Hydroscheme Industry Partnership Program (HIPP). The survey area is Western Approaches to Broome, WA.

Not to be used for navigational purposes

Tags: AusSeabed, Bathymetry, Digital Delivery, EARTH SCIENCES, Indian Ocean, MV Tenggara Explorer, Marine, Offshore Mapping, Published_External, Resourcing Australia's Prosperity, Sampling, multi-beam echosounders
Organization: Australian Ocean Data Network
Seabed Sand Content Across the Australian Continental EEZ, 2011

This dataset provides the spatially continuous data of the seabed sand content (sediment fraction 63-2000 mm) expressed as a weight percentage ranging from 0 to 100%, presented in 0.01 decimal degree resolution raster format. 

The dataset covers the Australian continental EEZ, including seabed surrounding Tasmania. It does not include areas surrounding Macquarie Island, and the Australian Territories of Norfolk Island, Christmas Island, and Cocos (Keeling) Islands or Australia's marine jurisdiction off of the Territory of Heard and McDonald Islands and the Australian Antarctic Territory.

This dataset supersedes previous predictions of sediment sand content for the Australian Margin with demonstrated improvements in accuracy. Accuracy of predictions varies based on density of underlying data and level of seabed complexity. Artefacts occur in this dataset as a result of insufficient samples in relevant regions. This dataset is intended for use at national and regional scales. The dataset may not be appropriate for use at local scales in areas where sample density is insufficient to detect local variation in sediment properties. To obtain the most accurate interpretation of sediment distribution in these areas, it is recommended that additional samples be collected and interpolations updated.

Tags: AU-EEZ, Earth Sciences, GIS Dataset, National, National dataset, Published_External, geoscience, mapping, marine, marine jurisdiction, seabed, sedimentology
Organization: Australian Ocean Data Network
Lizard Island Water Temperature From 13 Aug 2010

The 'Wireless Sensor Networks Facility' (formerly known as Facility for The Automated Intelligent Monitoring of Marine Systems (FAIMMS)), part of the Great Barrier Reef Ocean Observing System project (GBROOS), is a facility of the Australian 'Integrated Marine Observing System' (IMOS) project. This data set was collected by the Great Barrier Reef Wireless Sensor Network.

Organization: Australian Ocean Data Network
Soela Voyage SO 1/81 Biological Data Overview

This record is an overview entry for biological data collected on Soela cruise SO 1/81. This cruise took place in waters off the New South Wales coast during 23 March - 16 April 1981, under the leadership of S. Brandt. Biological data collected on this cruise include EK 50 acoustic data. Geographic and depth distribution data on midwater and demersal fish including samples from 158 trawls. Data from diel sampling of midwater and demersal fish. Zooplankton samples from hydrology stations. Trawl comparison data from four days of trawling and acoustics. Please note: This metadata record is a preliminary entry derived from information in the cruise plan and/or cruise report. Individual data types - which may span several cruises - will be indexed separately within this metadata system in due course.

Organization: Australian Ocean Data Network
SSCN SEGMENT 2-B Western Eyre Marine Park Bathymetry Acquisition (20240015S)

This dataset is part of a broader survey carried out by EGS onboard the survey vessel RV Bold Explorer (RV BE) during the  SUBCO Subsea Cable Network (SSCN) cable route survey. 

The area is confined to the data within the Western Eyre Marine Park. The Survey team and client representative joined the RV Bold Explorer on 17th April 2024 at Fremantle Port,  Australia. Following the embarkation of the survey team, equipment testing and commissioning was carried out. Calibration and verification of the DGPS positioning system and survey gyros onboard RV BE were performed while the vessel was alongside at Fremantle Port, Australia between 17th April and 18th April 2024. 

Prior to departure, tow sensors and hull-mounted sensors were wet tested. All systems were found to be operational. The RV Bold Explorer departed Fremantle Port, Australia and transited to the first site on 19th April 2024. The offshore calibration of shallow water multibeam echosounder (MBES) and USBL were performed on 19th April 2024 while the  calibration of deep water MBES was carried out on 20th April 2024.

The SSCN Segment 2-B survey comprised an investigation of bathymetry, seabed features and shallow geology along the proposed route. A subsequent geotechnical sampling programme was also executed.

This dataset is not to be used for navigational purposes.

Tags: AusSeabed, Australia-wide geoscience data, EARTH SCIENCES, HVC_144641, Multibeam, Oceans, Offshore Mapping, Published_External, Resourcing Australia's Prosperity, bathymetry, marine
Organization: Australian Ocean Data Network
Summary Of Data And Results Carnarvon Basin, Western Australia Wandagee No. 1 Well Marrilla  No. 1 Well Minderoo No. 1 Well Of West Australian Petroleum Pty Limited

Wandagee No. 1 Well was located in the Carnarvon Basin, Western Australia, approximately 84 miles north-east of Carnarvon. The well was drilled by Oil Drilling and Exploration CVV.A.) Fty Limited for West Australian Petroleum pty Limited, to a total depth of 3521 feet. Drilling commenced on 25th April, 1962 and was completed on 12th June, 1962. A full programme of logging, testing, and coring was undertaken.

The well was sited on a shallow part of the Wandagee Ridge. After drilling through 26 feet of Quaternary sand, the well penetrated 556 feet of a normal Carvarvon Basin sequence of Cretaceous sediments. The Upper Devonian Gneudna Formation was encountered at 591 feet, and this was followed from 912 feet by a section ranging in age from Silurian to possible Ordovician. The well bottomed at 3521 feet in the Tumblagooda Sandstone after drilling through 861 feet of the formation.

The primary objective of the well was to investigate the stratigraphy and oil potential of the Devonian and older rocks on a shallow part of the Wandagee Ridge. Traces of gas were observed in the marine siltstone unit at the top of the Tumblagooda Sandstone (2870 to 3098 feet), but no other hydrocarbon shows were recorded. Four drillstem tests recovered only brackish to salt water, The well was completed as a water well for Wandagee Station.

The off-structure drilling operation at Wandagee No. 1 was subsidized under the Petroleum Search Subsidy Act 1959-1961, from surface to total depth.

Tags: AU-WA, Earth Sciences, GA Publication, Other Publication, Published_External, petroleum exploration
Organization: Australian Ocean Data Network