AndreaBozzo/ceres-open-data-index huggingface dataset:
L032 Haddon Downs experimental seismic survey, SA, 1957

An experimental seismic survey was conducted at Haddon Downs, South Australia, during Octobor and November.1957. The area lies within the Eromanga Sub-basin of the Great Artesian Basin, and at least 5,500 feet of Mesozoic section are known to exist there, part of which is of a marine facies. Preliminary reconnaissance work by geologists of Santos Ltd. which holds an Oil Prospecting Licence over the
area, revealed some large anticlines on the surface. The Company has already completed a limited amount
of gravity work which gives promise of supplying useful information on both regional and detailed subsurface structure.

Two important refractors were recorded which may be useful for semi-regional mapping. A refractor of velocity 10,250 ft/sec. was recorded from a depth of about 2,700 feet, and this may represent the top of the marine Cretaceous section. The second refractor of velocity 17,000 ft/sec. and aidoroximate depth 7,250 feet may be just below the base of the Mesozoic section.

Large multiple geophone arrays and pattern shots were needed to obtain good quality reflections over most of the area, except when shooting on the alluvial plains of the larger creeks. The sedimentary section was shown to be at least 8,000 feet and possibly 16,000 feet thick, The base of the Mesozoic section is interpreted as being 7,250 feet deep on the refraction traverse and 8,600 feet at the south-east end of the reflecta.on traverse. The rest of the section probably consists of Palaeozoic sediments. If so, the high velocity (17,000 ft/sec.) suggests that a dense elastic or crystalline limestone is probably present near the top of them. The structure of the Mesozoic section is subhorizontal, but there may be minor structures with dips less than 1 degree which correlate with the surface structures.

Tags: AU-SA, HVC_144637, Published_External, Seismic Data seismic survey, Seismology and Seismic Exploration, geophysics, petroleum exploration, seismic reflection, seismic sections, seismic velocity
Organization: Geoscience Australia Data
Biomarker Evidence for Green and Purple Sulphur Bacteria in a Stratified Palaeoproterozoic Sea

The disappearance of iron formations from the geological record ~1.8 billion years (Gyr) ago was the consequence of rising oxygen levels in the atmosphere starting 2.45-2.32 Gyr ago. It marks the end of a 2.5-Gyr period dominated by anoxic and iron-rich deep oceans. However, despite rising oxygen levels and a concomitant increase in marine sulphate concentration, related to enhanced sulphide oxidation during continental weathering, the chemistry of the oceans in the following mid-Proterozoic interval (1.8-0.8 Gyr ago) probably did not yet resemble our oxygen-rich modern oceans. Recent data indicate that marine oxygen and sulphate concentrations may have remained well below current levels during this period, with one model indicating that anoxic and sulphidic marine basins were widespread, and perhaps even globally distributed4. Here we present hydrocarbon biomarkers (molecular fossils) from a 1.64-Gyr-old basin in northern Australia, revealing the ecological structure of mid-Proterozoic marine communities. The biomarkers signify a marine basin with anoxic, sulphidic, sulphate-poor and permanently stratified deep waters, hostile to eukaryotic algae. Phototrophic purple sulphur bacteria (Chromatiaceae) were detected in the geological record based on the new carotenoid biomarker okenane, and they seem to have co-existed with communities of green sulphur bacteria (Chlorobiaceae). Collectively, the biomarkers support mounting evidence for a long-lasting Proterozoic world in which oxygen levels remained well below modern levels.

Tags: Earth Sciences, External Publication, Published_External, Scientific Journal Paper
Organization: Geoscience Australia Data
ODNL Penola No 1 Well, South Australia Of Oil Development NL

O.D.N.L. Penola No. 1 Well, located in the north-east corner of Section 500, Hundred of Penola, South Australia, was drilled by Oil Development N.L. under a "farm-out" agreement with General Exploration Company of Australia Limited to a total depth of 4985 feet. Drilling was commenced on 7th February, 1961, and the well was abondoned as a dry hole on 5th May, 1961. The drilling contractor was Australian Tube Wells Pty Ltd, and the rig used was a Failing 2500 - Holemaster. The operation provided for a programme of electric and mud logging, testing and coring.

The Penola Well was designed to test the petroleum potentialities of the Coonawarra subsurface structure, which was first detected by a single reconnaissance seismic reflection traverse made through the Penola area. Beneath a thin Pleistocene cover Penola No. 1 penetrated a sequence of marine and paralic Tertiary, and marine and non-marine Mesozoic rocks, ranging in age from Oligocene to probable Upper Jurassic. The Tertiary sediments consisted of 215 feet of Gambier Limestone (Oligocene); 160 feet of Compton Conglomerate (Oligocene); followed by about 630 feet of paralic sands and grits of the Knight Group (middle to upper Eocene).

There is a marked discontinuity at l040 feet where the well passed abruptly from the Eocene to Cretaceous arkosic sandstones and siltstones of the Merino Group. The Upper Member of the Runnymede Formation of Albian to (?) Cenomanian age was 2380 feet thick, and of marine origin in at least the lower 800 feet, between 2586 and 3420 feet. The lower nonmarine member of the Runnymede Formation (? Aptian) was represented between 3420 and 4300 feet. A slight angular unconformity is interpreted at about 4300 feet, below which the well is considered to have entered non-marine mudstones and sandstones of the Mocamboro Member of probable Upper Jurassic age.

Minor showings of gas were encountered at Penola No. 1, none being of commerial significance. No signs of live oil were observed in the well.

Tags: AU-SA, Earth Sciences, GA Publication, Other Publication, Published_External, petroleum exploration
Organization: Geoscience Australia Data
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: Geoscience Australia Data
KN145L4 Perth Canyon Bathymetry 1994 (1179/19940008S)

The KN145L4 bathymetry survey was acquired by the Woods Hole Oceanographic Institution onboard the Woods Hole Oceanographic Institution (WHOI) Research Vessel Knorr from the 19 November to 22 November 1994 using the SeaBeam 2112 sonar system. The bathymetry dataset was acquired while the Research Vessel Knorr was surveying the Perth Canyon in Australia.   

This dataset contains the 128-210m resolution, 32-bit geotiffs of the KN145L4 survey produced from the processed SeaBeam system using the CARIS HIPS and SIPS software. 

Appropriate acknowledgment must be given to both the Dr. (Purdy, G. M.) (http://www.marine-geo.org/tools/search/entry.php?id=KN145L4#datasets) and to the Marine Geoscience Data System (www.marine-geo.org).

Not to be used for navigational purposes

Tags: AusSeabed, Australia-wide geoscience data, Bathymetry, EARTH SCIENCES, Indian Ocean, Marine, Offshore Mapping, Published_External, RV Knorr, Resourcing Australia’s Prosperity, multi-beam echosounders
Organization: Geoscience Australia Data
World Bathymetry Base Map WMTS

World Bathymetry Base Map tile cache. The service includes world bathymetry data, and ocean, country, population and natural features. The information was derived from various sources, including Natural Earth and National Geophysical Data Center (NGDC) ETOPO2 Global 2 Elevations from the September 2001 data. The service contains layer scale dependencies.

Tags: Natural Earth, Published_External, WMTS, bathymetry, boundaries, marine, political, topography, web service, world
Organization: Geoscience Australia Data
Environmental conditions and microbial community structure during the Great Ordovician Biodiversification Event; a multi-disciplinary study from the Canning Basin, Western Australia

The Ordovician is an important period in Earth’s history with exceptionally high sea levels that facilitated the Great Ordovician Biodiversification Event. This crucial biological event is regarded as the second most significant evolutionary event in the history of Paleozoic life, after the Cambrian radiation. The present study integrates palynological, petrographic, molecular and stable isotopic (δ13C of biomarkers) analyses of cores from five boreholes that intersected the Goldwyer Formation, Canning Basin, Western Australia, to determine depositional environments and microbial diversity within a Middle Ordovician epicontinental, tropical sea.
A major transgression was detected in the laminated shales of the lower Goldwyer Formation (Units 1+2) which were deposited in anoxic bottom waters, as confirmed by low (&lt;1) Pristane/Phytane ratios, and elevated dibenzothiophene and gammacerane indices. A second, less extensive, flooding event is recorded by shallow marine sediments of the upper Goldwyer Formation (Unit 4). Cores of these sediments, from two wells (Solanum-1 and Santalum-1A) are bioturbated and biomarkers indicate relatively oxygenated conditions, as well as the presence of methanotrophic bacteria, as determined from the high 3-methylhopane indices.
Typical Ordovician marine organisms including acritarchs, chitinozoans, conodonts and graptolites were present in the lower and upper Goldwyer Formation, whereas the enigmatic organism Gloeocapsomorpha prisca (G. prisca) was only detected in Unit 4. The presence of G. prisca was based on microfossils and specific biosignatures presenting an odd-over-even predominance in the C15 to C19 n-alkane range. 

Cryptospores were identified in Unit 4 in the Theia-1 well and are most likely derived from bryophytes, making this is the oldest record of land plants in Australian Middle Ordovician strata. Biomarkers in some samples from Unit 4 that also support derivation from terrestrial organic matter include retene, benzonaphthofurans and δ13C-depleted mid-chain n-alkanes.
This research contributes to understanding Ordovician marine environments from a molecular perspective since few biomarker studies have been undertaken on age-equivalent sections. Furthermore, the identification of the oldest cryptospores in Australia and their corresponding terrestrial biomarkers contributes to understanding the geographical evolution of early land plants.

Tags: Canning Basin, Earth Sciences, Gloeocapsomorpha prisca, Ordovician, Published_External, cryptospores
Organization: Geoscience Australia Data
Interpretation of Seismic Data, Capel and Faust Basins, Australia's Remote Offshore Eastern Frontier

The Capel and Faust basins are located in a remote part of deepwater offshore eastern Australia. They are largely Cretaceous rifts formed within a 1600 km long ribbon of continental crust (the Lord Howe Rise) that became detached from Australia during the fragmentation of the eastern Gondwana plate margin and the opening of the Tasman Basin. As part of Geoscience Australia (GA)'s ongoing work to identify and evaluate the resource potential of Australia's offshore frontier basins, approximately 6 000 km of industry-standard, 106-fold 2D seismic data was acquired over the Capel and Faust basins during late 2006 and early 2007. These data supplemented earlier, sparse regional seismic data and were complemented by the acquisition of approximately 24 000 km2 of multibeam bathymetry and 11 000 line kilometres of shipboard gravity and magnetic data by GA in late 2007. This record details the interpretation of the seismic data and is intended to complement the release of a digital version of the interpretations in workstation formats (GeoFrame, Kingdom). Scientific conclusions drawn from the seismic interpretations and, very importantly, from an integration of the seismic, potential field and other data sets are beyond the scope of this record and are published in other GA Records, scientific papers and conference proceedings volumes.

Tags: Earth Sciences, GA Publication, Published_External, Record, marine, petroleum geology, sedimentary basins, seismic sections, stratigraphy, structural geology
Organization: Geoscience Australia Data
Outline of Geological Studies in the Great Barrier Reef and Adjacent Regions : Industry, Commonwealth Government and International

From time to time, public interest has been generated in the geology of the Great Barrier Reef and the associated regions, particularly in the context of any previous or prospective interest in petroleum exploration. In response to this interest and ongoing public comment, Geoscience Australia has compiled the history of geological investigations by Geoscience Australia, its predecessors and collaborating organisations. A comprehensive bibliography of the results of these investigations is also provided. It is hoped that this record will inform any future public debate on the matter.

Tags: AU-QLD, Earth Sciences, GA Publication, Published_External, Record, geology, marine, marine survey, petroleum exploration
Organization: Geoscience Australia Data
BF2022_v01 Zeehan and Franklin Marine Parks, West Coast Tasmania Bathymetry Acquisition (20220009S)

The Zeehan and Franklin Marine Parks, West Coast Tasmania&nbsp;Bathymetry Acquisition was acquired by CSIRO onboard the TV Bluefin between 22 Feb 2022 and 21 Mar 2022, using a Kongsberg EM2040C. This was a contracted survey conducted for the Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, to conduct a multibeam survey encompasing the Zeehan and Franklin Marine Parks for Parks Australia. Bathymetry data was processed using QPS Qimera and Caris Hips &amp; Sips processing software. The dataset was then exported as a 2m resolution, 32 bit floating point GeoTIFF grid of the survey area. A detailed report on the survey is provided in: Hydrographic Survey of Zeehan and Franklin Marine Parks, West Coast Tasmania (https://figshare.utas.edu.au/articles/report/Hydrographic_Survey_of_Zeehan_and_Franklin_Marine_Parks_West_Coast_Tasmania/23171318).

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: Geoscience Australia Data
Australian Onshore and Offshore Boreholes WFS

This OGC conformant web service delivers data from Geoscience Australia's Boreholes database (borehole header and directional survey data) and associated geological observations (lithostratigraphic data). The data includes records of boreholes drilled by Geoscience Australia and its predecessor organisations (BMR, AGSO), all boreholes drilled in Australian Commonwealth offshore marine jurisdictions, and a selection of onshore boreholes drilled by government and private entities. Where possible this service conforms to the GeoSciML v4.1 data transfer standard.

Geoscience Australia is not a reporting or regulatory authority for borehole drilling.  Borehole information in Geoscience Australia's Boreholes database is sourced from various regulatory authorities in the States, Northern Territory and Commonwealth governments for Geoscience Australia research purposes.  Where Geoscience Australia is not the custodian of borehole data provided in this web service, the custodian agency provided with the data should be consulted as the authoritative source.

The data dictionary for this web service is at <a href="https://d28rz98at9flks.cloudfront.net/144577/144577_00_3.pdf">https://d28rz98at9flks.cloudfront.net/144577/144577_00_3.pdf</a>. For information on borehole status definitions, refer to <a href="https://db-content.ga.gov.au/data_dictionary/Borehole_Status_vocabulary_2021.pdf">https://db-content.ga.gov.au/data_dictionary/Borehole_Status_vocabulary_2021.pdf</a>

Tags: Published_External, WFS, borehole, borehole logging, borehole logs, borehole samples, geology, lithology, lithostratigraphy, stratigraphy, web service
Organization: Geoscience Australia Data
Multimedia products of the bathymetry data from the MH370 Search Area

This is a collection of multimedia products of data visualisations showing sea floor terrain in the MH370 search area and associated public communications regarding the search and Phase 1 data release. The video flythroughs and data visualisations were developed from a sample of bathymetric data from Phase 1 collected as part of the search for missing Malaysia Airlines flight MH370. This includes all visualisations (images and videos) used in the 'Data behind the search for MH370' Story Map.

This also contains the translated versions of the MH370 Story Map on ESRIOnline ("the Data behind the search for MH370") into Malay and Chinese.

Tags: Movie, Multimedia, Published_External, bathymetry, mapping, marine, video
Organization: Geoscience Australia Data
Leg 188 Sythesis: Transitions in the Glacial History of the Prydz Bay Region, East Antarctica, from ODP Drilling

Drilling during Leg 119 (1988) and Leg 188 (2000; Sites 1165-1167) of the Ocean Drilling Program (ODP) provides direct evidence for long- and short-term changes in Cenozoic paleoenvironments in the Prydz Bay region. Cores from across the continental margin reveal that in preglacial times the present shelf was an alluvial plain system with austral conifer woodland in the Late Cretaceous that changed to cooler Nothofagus rainforest scrub by the middle to late Eocene (Site 1166). Earliest recovered evidence of nearby mountain glaciation is seen in late Eocene-age grain textures in fluvial sands. In the late Eocene to early Oligocene, Prydz Bay permanently shifted from being a fluvio-deltaic complex to an exclusively marine continental shelf environment. This transition is marked by a marine flooding surface later covered by overcompacted glacial sediments that denote the first advance of the ice sheet onto the shelf. Cores do not exist for the early Oligocene to early Miocene, and seismic data are used to infer the transition from a shallow to normal depth prograding continental shelf with submarine canyons on the slope and channel/levees on the rise.

Tags: AQ, Antarctic data, Earth Sciences, External Publication, Published_External, Scientific Journal Paper, climate, continental margins, marine, palaeoclimatology
Organization: Geoscience Australia Data
L029 Heywood experimental seismic survey, Western District Basin, VIC, 1956

An experimental seismograph survey was carried out near Heywood in the Western District Basin, south-western Victoria, during November and December, 1956 by the Bureau of Mineral Resources, Geology and Geophysics. The work was requested by Frome-Broken Hill Pty. Ltd. and was intended primarily to ascertain if reflections from deoper sediments could be recorded through a surface layer of basalt which covers considerable areas in the Western District of Victoria.

Several short traverses were shot during the survey at places where a variety of surface conditions for seismic exploration could be tested. Pattern and air-shooting techniques were tried as well as the conventional single shot-hole technique. Good reflections were recorded from depths down to eleven
thousand feet in areas where there was no basalt. Some apparent reflections of poor quality were recorded at times as great as 5 seconds after the shot was fired. An attempt has been made to correlate the reflections with stratigraphic horizons. Reflections were obtained from strata beneath a basalt cover in some places when explosive charges were fired in single shot holes; reflection quality was improved when pattern and air-shooting techniques were used.It was not possible to record reflections through a cover of tuff containing basalt bands on the slopes of Mt. Clay. Pattern and air-shooting were tried unsuccessfully.

Sub-surface information in the Heywood area is obtainable by seismic exploration and techniques for gaining the best information from the seismic method are discussed.

Tags: AU-VIC, HVC_144637, Published_External, Seismic Data seismic survey, Seismology and Seismic Exploration, geophysics, petroleum exploration, seismic reflection, seismic refraction
Organization: Geoscience Australia Data
Oil and Gas Pipelines of Australia 2017

This map contains information on Oil and Gas pipeline infrastructure.  Attributes have been added to comply with data standards and minor coding of line work has been achieved using annotation from the map. Further data has been added, specifically for the specific Acreage Release Areas.

Tags: AU, National dataset, Petroleum Data, Petroleum and Coal Geology, Published_External, Wells, dataset, hydrocarbons, marine, natural gas
Organization: Geoscience Australia Data
Callide Creek 49.8 m dam site seismic refraction survey, Queensland 1959

This Record describes a seismic refraction survey at Callide Creek 49.8-mile dam site, near Biloela, Queensland. The survey was made at the request of the Queensland Irrigation and Water Supply Commission. Depths to unweathered bedrock and other rocks were determined by their seismic velocities and are shown on cross-sections. From general geological information and the results of drilling in the area, the seismic velocities can be translated into geological terms. Comparison with drilling results suggests that seismic depth estimates are about 18 per cent too low. After correcting this systematic error, the depth determinations are accurate to within 10 ft. Young's modulus for the unweathered bedrock, determined by the seismic method, is estimated at about 7 to 9 x 10,000,000 lb/in2.

Tags: AU-QLD, Earth Sciences, GA Publication, Published_External, Record, seismics
Organization: Geoscience Australia Data
A new bathymetry compilation for the Cape Darnley region, East Antarctica

We present the first detailed bathymetry compilation for the Cape Darnley region in East Antarctica. This region is of interest in several scientific fields as it is a key location for understanding the Cretaceous breakup of central Gondwana, basins on the continental shelf contain valuable paleoenvironmental records, the shelf is an important marine habitat, and the Cape Darnley polynya is one of only four sites of Antarctic Bottom Water production – a cold, dense, nutrient-rich water mass that forms on the continental shelf and sinks to abyssal depths, driving ocean currents around the world. However, oceanographic and ecosystem models in this region are poorly constrained by lack of detailed bathymetry.

Single beam and multibeam bathymetry datasets were compiled from multiple marine science voyages undertaken over several decades. The data were held by several institutes and were of varying quality. The new dataset improves previous regional bathymetric representations and enables visualization of shelf and slope morphology in unprecedented detail. The compilation provides important baseline information underpinning a range of scientific applications. In particular, the bathymetry provides the first detailed insights into potential bottom water transport pathways from the Cape Darnley polynya into the global deep ocean circulation system. Geomorphic interpretation of the bathymetry data provides insights into past glacial dynamics and contemporary seafloor processes.

Presented at the 2023 POLAR 2018 A SCAR &amp; IASC Conference

Tags: Antarctica, EARTH SCIENCES, Published_External, bathymetry, marine
Organization: Geoscience Australia Data