AndreaBozzo/ceres-open-data-index huggingface dataset:
REM Etive Voyage RE2017_C01 ROV video data

This record describes the operations undertaken and geological sample data collected on the Fugro vessel REM Etive Charter Voyage RE2017_C01, titled "Great Australian Bight (GAB) Deep Water Geological and Benthic Ecology Program." This charter voyage took place from Hobart to Adelaide between the 13th of March and the 6th of April, 2017.

The voyage, undertaken over 25 days, was a great success with 33 researchers from several research organisations and the vessel crew undertaking 40 operations over 5 target areas in water depths ranging from 1000 m to 3000 m. The voyage deployed a diverse range of instrumentation fully utilising the REM Etive capabilities which included two work class Remotely Operated Vehicles (ROV).  This record contains video stills data recorded by the ROVs during the survey.

Images can be accessed and downloaded via the Distribution links below.

Organization: Australian Ocean Data Network
National Gravity Compilation 2019 tilt image

Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. 
This National Gravity Compilation 2019 tilt image is derived from the 2019 Australian National Gravity Grids A series. These gravity data were acquired under the project No. 202008. The grid has a cell size of 0.00417 degrees (approximately 435m). This gravity anomaly grid is derived from ground observations stored in the Australian National Gravity Database (ANGD) as at September 2019, supplemented with offshore data sourced from v28.1 of the Global Gravity grid developed using data from the Scripps Institution of Oceanography, the National Oceanic and Atmospheric Administration (NOAA), and National Geospatial-Intelligence Agency (NGA) at Scripps Institution of Oceanography, University of California San Diego. Out of the approximately 1.8 million gravity observations, nearly 1.4 million gravity stations in the ANGD with marina data were used to generate this grid. The ground gravity data used in this grid has been acquired by the Commonwealth, State and Territory Governments, the mining and exploration industry, universities and research organisations from the 1940's to the present day. Station spacing varies from approximately 11 km down to less than 1 km, with major parts of the continent having station spacing between 2.5 and 7 km. Terrain corrections to gravity were calculated using both offshore bathymetry and onshore topography data. A tilt filter was then applied to the complete spherical cap Bouguer anomaly (A series) to produce this image covering Australia and its continental margins.

Tags: A series, Australia, Bouguer, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, None, Published_External, complete, digital data, geophysical survey, geophysics, grav, gravity, ground, image, marine, raster, satellite, spherical cap, survey 202008, tilt
Organization: Australian Ocean Data Network
The "Geera Clay equivalent": a regressive marine unit in the Renmark Group that sheds new light on the age of the Mologa weathering surface in the Murray Basin

Sandy clays deposited during the waning phase of Oligocene-Middle Miocene transgression of the Murray Basin conformablyoverlie the shallow to marginal marine Geera Clay and grade laterally into fluvio-Iacustrine sediments of the Middle and Upper Renmark Group. These sandy clays (informally named "Geera Clay equivalent") and the Geera Clay preserve marine dinoflagellates that became extinct by middle to late Middle Miocene time.  If the subsequent regression was due to a global drop in relative sealevel, then we propose that the unconformity developed across the Geera Clay and that the lateral equivalents during the Late Miocene (Mologa weathering surface) correlates with either the 13.8 Ma or (preferred) 10.5 Ma sequence boundary of Haq and others (1987).  Three pollen species of potential biostratigraphic value in the Murray Basin are illustrated and discussed. One new species is described: Tetrapollis campbellbrownii.

Tags: Earth Sciences, GA Publication, Journal, NSW, Published_External, SA, VIC
Organization: Australian Ocean Data Network
MODIS Derived Primary Productivity: Overall Hotspots

The dataset indicates the long-term overall primary productivity hotspots of ocean surface waters. They are derived from MODIS (aqua) images using NASA's SeaDAS image processing software. The monthly chlorophyll a images between July 2002 and August 2014 are used to identify the overall primary productivity hotspots. The extent of the dataset covers the entire Australian EEZ and surrounding waters (including the southern ocean). The value (between 0 and 1.0) of the dataset represents the likelihood of the location being a primary productivity hotspot.

This research is supported by the National Environmental Science Program (NESP) Marine Biodiversity Hub through Project D1.

Tags: Earth Sciences, MODIS, Marine Biodiversity Hub, National Environmental Science Program, Published_External, primary productivity
Organization: Australian Ocean Data Network
Image Collection - RV Investigator Voyage IN2025_V02 - Monitoring the recovery of a globally unique deep-sea eel aggregation in the Huon Marine Park

This data set contains the imagery collected on the Marine National Facility (MNF) RV Investigator voyage IN2025_V02, titled "Multiyear: Integrated Marine Observing System (IMOS) Southern Ocean Time Series (SOTS) Strategic Partnership." The voyage took place between March 26, 2025 and April 14, 2025 (AEST), departing from Hobart and returning to Hobart, collecting imagery of benthic habitats together with oceanographic data.

Instrument(s) used to collect this data:
MNF Deep Towed camera (DTC)

Datasets include: 
Video (oblique forward view)
Stereo stills (oblique forward view)
Navigational data

Organization: Australian Ocean Data Network
Geomorphology and Sedimentology of the Northwest Marine Region

Literature review and spatial analysis of the sedimentology and geomorphology of the Northwest Marine Region (boundary as defined by the Department of the Environment, Water, Heritage and the Arts 2007).  Sedimentology information is based on consistent quantitative point assays of grainsize (weight % sand/mud/gravel) and carbonate content (weight % carbonate) of sediments in the MARS database at 01/08/07.

Tags: AU-WA, Earth Sciences, GA Publication, Published_External, Record, environmental, geomorphology, marine, marine zone, sedimentology
Organization: Australian Ocean Data Network
Lizard Island Light From 26 Feb 2012

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.

Tags: surface_downwelling_photosynthetic_radiative_flux_in_air
Organization: Australian Ocean Data Network
Salinity of deep formation water in the Canning Basin, Western Australia

Salinity of deep formation water in the Canning Basin, estimated from well log data or measured on water samples from oil-production wells and drill stem tests, ranges from almost fresh water (&lt;1000 mg/L TDS) to brines which contain &gt;300,000 mg/L TDS.  Salinity is generally below 10,000 mg/L and rarely above 100,000 mg/L, partly because most wells have been drilled near the margins of the Canning Basin or its sub-basins and/or they intersect only the top few km of sedimentary sections.  Most very high salinity water (&gt; 100,000 mg/L) was found in the south of the Canning Basin, particularly in the Willara and Kidson Sub-Basins, which were the sites of sabkhas (e.g. the Mellinjerie Limestone) and extensive deposition of evaporites (e.g. the Carribuddy Formation) in the Ordovician and Silurian.  Salinity depends strongly on depth and sometimes increases from the top to the base of a stratigraphic unit or group of units before abruptly decreasing at the top of the underlying unit and then rising again.  This type of pattern is most evident where the stratigraphic units are relatively thick, and the profiles are best preserved in low to moderate permeability sediments located in present-day low recharge areas of the basin. The pattern is probably formed by stacking of a series of palaeo-salinity profiles, produced during a marine-continental or other depositional cycle in which the relatively high-salinity marine or non-marine water in the upper parts of the aquifer was partly replaced by low-salinity terrigenous groundwater.  Average salinity of individual stratigraphic units within the basin increases linearly with increasing depth of burial, which suggests that the more saline deeper water interacts with the nearer-surface meteoric systems, probably via molecular diffusion of salt.  Salinity is abnormally high in those parts of the Grant Group where re-solution of evaporites from the underlying Carribuddy Formation can occur, and in the low-permeability Mellinjerie Limestone where original highly saline pore water is retained and/or there is dissolution of associated evaporites.  Higher than expected salinity also occurs in the Devonian Reef Complex and the Nita Formation, where water may contain remnants of palaeo-brines which entered the sediments before their permeability was reduced by cementation and compaction.

Tags: Earth Sciences, GA Publication, Journal, Published_External, WA
Organization: Australian Ocean Data Network
Paleocene-Eocene biostratigraphy and palaeoenvironment of East Antarctica: new data from the Mac. Robertson Shelf and western parts of Prydz Bay

The Mac. Robertson Shelf and western Prydz Bay, on the continental shelf of East Antarctica, were the sites of seismic/coring programs in February- March 1995 and 1997, and of an opportunistic sampling in 1993. Seismic data indicate a prograding sequence, about 200 m thick, dominated by clinoforms, in Palaeogene sediment. Core sampling was accompanied by deployment of a conductivity/temperature/depth probe (CTD), bottom camera and bottom-sediment grab. The Palaeogene sediments overlie Jurassic-Cretaceous sediments or Precambrian basement, and are overlain by thin, olive-green Quaternary diatomaceous ooze and sand.  Sampling from the walls and floors of valleys crossing the shelf was on targets defined seismically, and recovered: Weakly lithified black carbonaceous or brown mudstone and siltstone with Paleocene (P4 and Paleocene undifferentiated), Middle Eocene with Globigerinatheka, and other Palaeogene foraminiferid faunas; Paleocene and Eocene pollen, spores and dinoflagellates; Sediments containing a mixture of Palaeogene fossils and Pliocene to Late Pleistocene/ Holocene diatoms and foraminifera; and Evidence of recycling from Permian, Jurassic and Cretaceous sequences.  The Palaeogene sediments from the Neilsen Basin and Iceberg Alley contain glauconite and pyrite (the former often, and the latter rarely, pseudomorphic after radiolaria) and, in places, abundant carbonised wood. Radiolaria, teeth and bone fragments are rare. Foraminifera are rare and very dominantly small and calcareous with very few planktonics.  The rocks appear to be part of a coastal plain sediment sequence, all weakly lithified, which includes red muddy sandstone and the fossil-bearing lithologies. It is not clear if all the fossil material and enclosing sediments are in situ or have been reworked as fragments into later glacial sediments. The faunas all appear to have accumulated in an inner continental shelf, fully marine environment with temperate-climate water temperature, and where sediment input was high compared with biogenic carbonate production. Several depositional models meet these criteria.  Palynology helps define Paleocene and mid-Late Eocene depositional events, the latter marked by the Transantarctic dinocyst flora.  The marine Palaeogene can be related to depositional cycles well documented from other parts of the world.

Tags: AAT, Earth Sciences, GA Publication, Journal, Published_External
Organization: Australian Ocean Data Network
A connectivity bottleneck between the Far Northern and Northern Great Barrier Reef, with potential implications for the poleward migration of corals in response to climate change

Data from the manuscript &quot;A connectivity bottleneck between the Far Northern and Northern Great Barrier Reef, with potential implications for the poleward migration of corals in response to climate change.&quot;

The resilience of the 2300 km-long Great Barrier Reef (GBR) to climate change is often attributed to its perceived high level of connectivity. Using empirical current data and 3D hydrodynamic models, we demonstrate the existence of a hitherto under-appreciated constriction of the connectivity in the GBR, due to the geomorphology of coast and reefs, regional wind patterns, and intrusions of Coral Sea waters onto the shelf. Both data and models showed predominantly northward transport of coral larvae past the constriction during southerly winds, but a small level of southward transport during northerly winds. Our results show that this small constriction slows the southward spread of heat-adapted corals at ecologically relevant rates. As temperature zones are shifting rapidly southward due to climate change, opportunities and risks of actively assisting the poleward migration of corals in ecologically relevant numbers should be investigated in the quest to accelerate climate adaptation.

Organization: Australian Ocean Data Network
AGSO Journal vol.15 no. 3

Contents:
1.Durney DW, Kisch HJ. A field classification and intensity scale for first-generation cleavages.
2.Mernagh TP, Witt WK. Early, methane-rich fluids and their role in Archaean gold mineralisation at the Sand King and Missouri deposits, Eastern Goldfields Province, Western Australia.
3.Whitaker AJ. Integrated geological and geophysical mapping of southwestern Western Australia.
4.Michael Leiba MO. Fluctuations in seismicity in the Dalton area, NSW, Australia, and their relevance to earthquake forecasting.
5.Ollier CD, Pain CF. Landscape evolution and tectonics in southeastern Australia.
6.Lavering IH. Marine benthic communities in the Early Carboniferous of New South Wales (Visean-Delepinea aspinosa Zone). 
7.Palmieri V, Foster CB, Bondavera EV. First record of shared species of Late Permian small foraminiferids in Australia and Russia: time correlations and plate reconstructions.
8.Nicoll RS. Seximembrate apparatus structure of the Late Cambrian coniform conodont Teridontus nakamurai from the Chatsworth Limestone, Georgina Basin, Queensland.
9.Roach IC, McQueen KG, Brown MC. Physical and petrological characteristics of basaltic eruption sites in the Monaro Volcanic Province, southeastern New South Wales, Australia.

Tags: Earth Sciences, GA Publication, Journal, Published_External
Organization: Australian Ocean Data Network
Leg 189 Synthesis: Cretaceous-Holocene History of the Tasmanian Gateway

Ocean Drilling Program (ODP) Leg 189 drilled five sites in bathyal depths on submerged continental blocks in the Tasmanian Gateway, to help refine the hypothesis that its opening near the Eocene/Oligocene boundary led to formation of the Antarctic Circumpolar Current (ACC), progressive thermal isolation of Antarctica, climatic cooling, and development of an Antarctic ice sheet. In all, 4539 m of marine and largely continuous upper Maastrichtian to Holocene core were recovered, with a recovery rate of 89%. The sedimentary sequence broadly consists of shallow marine mudstones until the late Eocene, glauconitic siltstones during the late Eocene, and pelagic carbonates thereafter. The microfossils in the mudstones and siltstones are largely palynomorphs and diatoms, and those in the carbonates are largely nannofossils and foraminifers.

During the Late Cretaceous, northward movement of Australia away from Antarctica commenced, forming the Australo-Antarctic Gulf (AAG). However, a Tasmanian land bridge at 70?-65?S almost completely blocked the eastern end of the widening AAG until the late Eocene, there being no evidence of extensive current circulation across the ridge until the earliest Oligocene. Prior to the Oligocene, muddy marine siliciclastic sediments were deposited in temperate seas. During the late Eocene, the northeastern AAG was warmer and less ventilated than the gradually widening southwest sector of the Pacific Ocean, which was affected by a cool, northwesterly flowing boundary current ? a difference that may have existed since the Maastrichtian. In the late Eocene (~37 Ma), the Tasmanian land bridge and its broad shelves began to subside, currents swept the still-shallow offshore areas, and condensed glauconitic siltstones were deposited. Palynological and diatom evidence suggest a general cooling. The southwestern South Tasman Rise finally separated from Antarctica at the time of the Eocene/Oligocene boundary (~33.5 Ma), the rise subsided, and the continental margin of Tasmania collapsed. The Tasmanian Gateway opened to deep water, disrupting oceanic circulation at high southern latitudes, and leading to one of the major climatic shifts of the Cenozoic.

Thereafter, a marked reduction in siliciclastic supply, and the flow of warm currents from northern latitudes, favored the deposition of carbonate. At the eastern sites, deposition of Oligocene bathyal carbonates directly followed an unconformity caused by the onset of the ACC, but change was more gradual in the west. In contrast, siliceous biogenic sediments typified the Antarctic margin, now isolated from warm water by the ACC. Steady northward movement kept the Tasmanian region north of the Polar Front throughout the Neogene, and pelagic carbonates accumulated.

Tags: AU-TAS, Earth Sciences, External Publication, Published_External, Scientific Journal Paper, marine
Organization: Australian Ocean Data Network
A palynological report on A.O.G. Wentworth No. 1, New South Wales, with observations on the Permian of the Oaklands-Coorabin area of the Murray Basin

Palynological examination of cores and cuttings from the subsidised A.O.G. Wentworth No.1 well, Murray Basin, New South Wales, indicates that the well passed from Tertiary into Lower Cretaceous marine sediments at either 1283-1335 feet or 140-1455 feet and into probable Lower Permian beds at 1615-1645 feet. The well was completed in conglomerates, probably also of Lower Permian age, at a total depth of 2081 feet. Examination of samples from the Oaklands-Coorabin coalfield, to obtain a guide to the age of the pre-Mesozoic section of Wentworth No.1, demonstrated that the coal measures are equivalent in age to the Upper Coal Measures of the Sydney Basin, that they overlie Lower Permian (?)marine beds which, by virtue of their common content of Leiosphaeridae, compare in age with the Wentworth Permian section.

Tags: AU-NSW, Earth Sciences, GA Publication, Published_External, Record
Organization: Australian Ocean Data Network
RV Investigator Voyage IN2026_V01 EK80 Echosounder

This record describes scientific split-beam echosounder data collected on the RV Investigator voyage IN2026_V01, titled "Cook Ice Ecosystems and Sediments (COOKIES)." The voyage took place between January 02, 2026 and February 25, 2026 (AEST), departing from Hobart and returning to Hobart.

The Simrad EK80 split beam echosounders for 18, 38, 70 120, 200 and (333) kHz were used to acquire acoustic backscatter data to a maximum range of 4500 m, around Antarctica and IMOS settings of 1500m for the transit legs. All frequencies were logged continuously for the extent of the voyage. The frequencies were all set to active for the whole period of the voyage.
Data are stored in .raw, .bot and *.idx format at CSIRO. There are 2435 files totalling 231 GB of raw data in this dataset.

No post-processing has been conducted on this data.

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

Organization: Australian Ocean Data Network
Bathymetry of the Australian Margin 2012

Flythrough of the Austrlalian Margin (not including the northern margin) showing detail of the Exmouth Plateau, Perth Canyon, Murray Canyons, NSW Slope and Great Barrier Reef.  Gridded bathymetry data shown in this product  was sourced from GA and James Cook University.

Tags: AU, Earth Sciences, Flythrough, Multimedia, Published_External, bathymetry, geomorphology, marine
Organization: Australian Ocean Data Network
New Palaeogeographic Maps of the northern margins of the Australian plate - Updated report

A variety of alternative reconstructions are considered for the northern margins of the Australian plate. The simplest solution involves Hall's (2002) configuration for the microplates  in the Greater Birds Head. Prior to the early Permian, the Greater Birds Head is thought to have lain adjacent to northern Australia from Timor to the Kai islands. After Meso-Tethys breakup in the Sakmarian, it then rotated away during the Permian to Middle Triassic to form the proto-Banda Sea and the spreading centre was then abandoned. From the Middle Triassic to the Oligocene, the Greater Birds Head was probably a relatively stable promontory of northern Australia and was then fragmented, tectonised and incorporated into the SE Asian island arc system during the late Oligocene to Holocene.

The palaeogeographic maps are updated to incorporate these new plate models. The tectonostratigraphic evolution of northern Australia is divided into several phases. During the Carboniferous to Sakmarian pre-breakup phase, the Westralian Superbasin was characterised by rifting, deltas and various types of glacial sedimentation. After the Sakmarian Meso-Tethys breakup, there were large amounts of deltaic clastic sedimentation, lasting until Argoland drifted away in the Late Jurassic. The New England Orogeny overlapped with the first part of this phase on the NE margin until the Middle Triassic. There was a long period of post-breakup marine rift basin formation in NW Australia from the Oxfordian to the Valanginian. Indian Ocean breakup then led to rapid thermal subsidence. The rest of the Cretaceous was characterised by passive tectonics with largely fine-grained sedimentation on the NW margin, and increasing volcanicity and rifting on the NE side of the continent. Shifting areas of rifting and breakup, largely in a backarc setting affected the NE margins in the latest Cretaceous to early Eocene. Carbonate progradation started in the Westralian Superbasin in the Paleocene. The Eocene to Holocene history has been marked by passive carbonate progradation on the NW margin and multiple collisions in the N and NE.

Many of the tectonic models put forward in this study are very difficult to substantiate using the data currently available and alternative scenarios are a strong possibility. The way forward is now to formulate research programmes that would help to narrow down these alternatives and better document the history of this very complex margin.

Tags: Earth Sciences, GA Publication, Published_External, Report
Organization: Australian Ocean Data Network