AndreaBozzo/ceres-open-data-index huggingface dataset:
Wessel Marine Park Post-Survey Report for IN2019T02

In October 2019, opportunistic mapping and imagery of the Wessel Marine Park on the RV Investigator revealed a localised band of high biodiversity linked to a unique and culturally important geomorphological feature in the otherwise uniform seascape prevalent in the Wessel Marine Park. Our findings help contribute to an understanding of the values of a northern marine park, including an inventory of communities and habitats as well as potential relationships to geomorphic features and culturally important sites. This has national significance to the implementation of the northern marine park management plan, as well as informing future monitoring programs in northern Australia.

<b>Citation:</b> Przeslawski R, Beaman R, Fava L, Nichol S, Woehler E, Yule C (2020). Wessel Marine Park: Post-Survey Report for INV2019T02. Report to the National Environmental Science Program, <i>Marine Biodiversity Hub</i>. Geoscience Australia.

Tags: Australian marine parks, EARTH SCIENCES, ENVIRONMENTAL SCIENCES, Indigenous engagement, Marine Geoscience, Marine and Estuarine Ecology (incl. Marine Ichthyology), Published_External, multibeam, towed video
Organization: Geoscience Australia Data
Gravity provinces and their nomenclature

Gravity features have been defined and named by the various authors who have interpreted the results of land and marine reconnaissance gravity surveys in Australia. In general, two classes of feature have been identified - gravity provinces and gravity units. A gravity province is a region where the gravity field is characterized by uniformity of some property, such as contour trend, gravity level, or degree of contour disturbance, which distinguishes it from neighbouring provinces. A gravity unit is a subdivision of a province. Neighbouring units are again distinguished from each other by differences in contour trend, gravity level, or degree of contour disturbance - but on a smaller scale. Many gravity features were originally defined from the results of individual reconnaissance surveys in isolated areas and have been shown to be inconsistent with the regional gravity pattern after more extensive coverage has been obtained. Land and marine gravity coverage is now virtually complete, and an attempt has now been made to rationalize gravity province boundaries and names over the whole of Australia and its continental margins. In all, 125 provinces have been defined and named. It is recommended that authors make use of the names when discussing regional gravity features.

Tags: AUS, Earth Sciences, GA Publication, Journal, Published_External
Organization: Geoscience Australia Data
Shark Bay Special Topographic Map

The map covers an area of 1.6 degrees longitude by 2.17 degrees latitude or about 160 kilometres from east to west and about 238 kilometres from north to south. 
This map contains natural and constructed features including road infrastructure, vegetation, hydrography, contours (interval 50m), localities and administrative boundaries for the Francois Peron National Park and Shark Bay Marine Park, both inclusive of a World Heritage Area. 
The reverse side of the map depicts the same area using a satellite image with an overlay of major roads, tourism features and facilities as well as insets featuring the towns of Carnarvon and Denham. 
The topographic map and data index shows coverage of the sheets. 
Product Specifications: 
Coverage: The series covers the whole of Australia with 513 maps. 
Currency: Ranges from 1995 to 2009. 95% of maps have a reliability date of 1994 or later. 
Coordinates: 
Geographical and either AMG or MGA (post-1993) 
Datum: AGD66, GDA94, AHD. 
Projection: Universal Traverse Mercator (UTM) 
Forward Program: Selected maps under revision.

Tags: 250K scale, AU-WA, Published_External, Topographic Map, Topology, cartography, mapping, topography, tourism
Organization: Geoscience Australia Data
SI 1029 Hay Point to Hydrographers Passage, QLD (HIPP) Bathymetry Acquisition (20220014S)

The Hay Point to Hydrographers Passage Bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Sea Ranger and MV Brynda during the period 13 August- 09  November 2022. This is a contracted survey conducted for the Australian Hydrographic Office by EGS as part of the Hydroscheme Industry Partnership Program (HIPP). 

The survey area encompases Hay Point to Hydrographers Passage in Queensland. Bathymetry data was acquired using a Kongsberg EM2040D and Kongsberg EM 2040C systems and processed using QPS Qimera 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, Bathymetry, Bathymetry/Seafloor Topography, EARTH SCIENCES, Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry, HVC-144641, Oceans, Published_External, bathymetric grids, bathymetry, multibeam
Organization: Geoscience Australia Data
Australian National Offshore Wells Data Collection

Geoscience Australia houses one of the world's largest collections of petroleum data. Much of this data is non-confidential and available to the petroleum industry, research organisations and the public. 

The collection includes well data submitted by industry under legislative requirements as well as data collected by research projects and marine surveys undertaken by Geoscience Australia or other government agencies or institutions. 

The collections comprise of digital data such as well completion reports, well logs, destructive analysis reports, vertical seismic profiles, core photography, special studies and also hard-copy well log data and graphs submitted during the pre-digital era. 

<b>Value: </b> information related to the subsurface that have the potential to support geological investigations and assessment of a variety of resources. 

<b>This data can be discovered through the National Offshore Petroleum Information Management System (NOPIMS) - https://www.ga.gov.au/nopims</b>

Tags: DC2020, EARTH SCIENCES, GIS Dataset, HVC - High Value Collection, National, Offshore Wells, Petroleum Exploration, Petroleum Geology, Published_External, Well completion reports, Well logs, {0}
Organization: Geoscience Australia Data
Pore Water Geochemistry of Eastern Mediterranean Mud Volcanoes: Implications of Fluid Transport and Fluid Origin

The pore water chemistry of mud volcanoes from the Olimpi Mud Volcano Field and the Anaximander Mountains in the eastern Mediterranean Sea have been studied for three major purposes: 
1) modes and velocities of fluid transport were derived to assess the role of (upward) advection, and bioirrigation for benthic fluxes. 
2) Differences in the fluid chemistry at sites of Milano mud volcano (Olimpi area) were compiled in a map to illustrate the spatial heterogeneity reflecting differences in fluid origin and transport in discrete conduits in near proximity. 
3) Formation water temperatures of seeping fluids were calculated from theoretical geothermometers to predict the depth of fluid origin and geochemical reactions in the deeper subsurface.

No indications for downward advection as required for convection cells have been found. Instead, measured pore water profiles have been simulated successfully by accounting for upward advection and bioirrigation. Advective flow velocities are found to be generally moderate (3-50 cm y- 1) compared to other cold seep areas. Depth-integrated rates of bioirrigation are 1-2 orders of magnitude higher than advective flow velocities documenting the importance of bioirrigation for flux considerations in surface sediments. Calculated formation water temperatures from the Anaximander Mountains are in the range of 80 to 145 Â°C suggesting a fluid origin from a depth zone associated with the seismic decollement. It is proposed that at that depth clay mineral dehydration leads to the formation and advection of fluids reduced in salinity relative to sea water. This explains the ubiquitous pore water freshening observed in surface sediments of the Anaximander Mountain area. Multiple fluid sources and formation water temperatures of 55 to 80 Â°C were derived for expelled fluids of the Olimpi area.

Tags: Earth Sciences, External Publication, Published_External, Scientific Journal Paper, marine, volcanology
Organization: Geoscience Australia Data
BMR Cruise 067 : Otway Basin and West Tasmanian Sampling

In early 1987, scientists aboard R.V. Rig Seismic carried out a 29 day research cruise over the Otway Basin and the Sorell Basin of the west Tasmanian margin, to provide new geological, geochemical and heatflow data, in an area with considerable petroleum potential. Altogether, 130 sampling stations were occupied using dredges, corers, grabs and a heatflow probe.

Among the rocks recovered were: Palaeozoic volcanics and metasediments; Late Cretaceous sandstones, siltstones and mudstones; early Tertiary siltstones; and late Tertiary carbonates. All samples were taken along seismic profiles, so that the results can be easily incorporated into the regional geological framework. In general, the further down the continental slope, the older the rocks. Palaeontological results indicate that there has been very considerable post-Eocene subsidence of the slope. A great variety of Quaternary sediments were recovered, and these have allowed a detailed sedimentation model to be developed.

Heatflow calculations from 20 stations suggest that the present zone of thermal maturation of hydrocarbons is 2-4 km deep. Headspace gas analyses of many cores indicate that thermogenic hydrocarbons are widespread, with particularly high readings in both the eastern and the western Otway Basin and on the west Tasmanian margin. Thus, mature hydrocarbon source rocks must also be widespread.

Tags: AU-TAS, Earth Sciences, GA Publication, Published_External, Report, marine, marine survey
Organization: Geoscience Australia Data
Australian Marine Spatial Information System (AMSIS)

The Australian Marine Spatial Information System (AMSIS) is a web based interactive mapping and decision support system that improves access to integrated government and non-government information in the Australian Marine Jurisdiction.

AMSIS is a decision support tool maintained by Geoscience Australia that brings together information required by Government, industry and private individuals with an interest in the regulation, geography and uses of Australia’s Marine Jurisdiction.  AMSIS provides a mechanism to visualise competing interests in the marine space; using curated data from across Government, State, and academia to expose competing use, and enable discussion with the multi-sectoral users to better plan and manage the Jurisdiction.

AMSIS contains many layers of information displayed in themes of Australia’s Maritime Boundaries, Petroleum, Fisheries, Environment, Native Title and general Regulation. 

Geoscience Australia is working with other Australian Government agencies, Industry and Academia to add additional information that will improve the functionality of AMSIS.

All information provided in AMSIS is the best available at the time of publication.  Although the best efforts have been made to ensure the information is current and accurate, the information is not warranted to be correct.  Users should investigate the metadata records to understand the limitations on any information layer, and consult with the regulating agency before making any decision.

Tags: AU, DC2020, Database, Earth Sciences, HVC_144653, National dataset, Published_External, data, marine, marine jurisdiction
Organization: Geoscience Australia Data
SI 1043 Cape Fourcroy (West) (HIPP) Bathymetry Acquisition (20230016S)

The Cape Fourcroy (West)&nbsp;bathymetry survey was acquired for the Australian Hydrographic Office (AHO) during the period 18 Aug 2023 – 15 Oct 2023. This was a contracted survey conducted for the Australian Hydrographic Office as part of the Hydroscheme Industry Partnership Program. The survey area encompasses an area in Cape Fourcroy (West). Bathymetry data was acquired using a Kongsberg EM2040 MKII, and processed using CARIS HIPS and SIPS, and QIMERA 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, Australia-wide geoscience data, EARTH SCIENCES, Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry, HVC_144641, Multibeam, Oceans, Offshore Mapping, Published_External, Resourcing Australia’s Prosperity, bathymetric grids, bathymetry, multibeam
Organization: Geoscience Australia Data
Geophysical Surveys and Datasets WFS

This web service delivers the geographical extents and descriptive metadata of geophysical datasets from all surveys conducted or managed by Geoscience Australia and its predecessor agencies, as well as from State and Territory geological survey agencies. Datasets include gravity, magnetic, radiometric, and electromagnetic data, and elevation data collected during geophysical surveys.

Tags: Published_External, WFS, electromagnetic, elevation, gravity, magnetic, radiometric, survey, web service
Organization: Geoscience Australia Data
Estimating the biodiversity of the East Antarctic shelf and oceanic zone for ecoregionalisation: example of the ichthyofauna of the CEAMARC (Collaborative East Antarctic Marine Census) CAML surveys

Ecoregions are defined in terms of community structure in function of abiotic or even anthropogenic forcing.  They are mesoscale structures defined on the potential habitat of species or predicted communities geographic extent. We assume that they can be more easily defined for long-lived species such as benthos or neritic fish in the marine environment. Uncertainties exist for the pelagic realm because of its higher variability, plus little is known about the meso- and bathypelagic zones. A changing environment and modifications of habitats will probably drive new communities from plankton to fish or top predators. We need based-line studies such as those of CAML, databases like SCAR-MarBIN and tools for integrating all of these observations. Our objective is to understand the biodiversity patterns in the Southern Ocean and how these might change.

Tags: AQ, Antarctic data, Earth Sciences, External Publication, Published_External, Scientific Journal Paper, abiotic surrogates, geomorphology, marine
Organization: Geoscience Australia Data
Summary Of Data And Results Gippsland Basin, Victoria Southwest Bairnsdale No. 1 Well Duck Bay No. 1 Well Of Woodside (Lakes Entrance) Oil Company N.L. And Arco Limited

Southwest Bairnsdale No. 1 Well was located about 15 miles west-south-west of Bairnsdale, in the Gippsland Basin of Victoria. The well was drilled by Reading and Bates (Australia) pty Ltd for Woodside (Lakes Entrance) Oil Company No Liability and Arco Limited, to total depth of 3926 feet. Drilling commenced on 8th January, 1963 and was completed on 14th February, 1963. A full programme of coring and logging was undertaken.

The objectives of the drilling operation were to obtain stratigraphic data, and to test the hydrocarbon potential of the pre-Tertiary sediments by a well favourably situated to intersect pinch-out zones in the expected Upper Devonian-Lower Carboniferous sequence occurring below a thin Tertiary cover.

The well achieved its objectives; Tertiary sediments were penetrated from surface to 1408 feet, Lower Carboniferous-Upper Davonian non-marine sediments to 3806 feet, and pre-Upper Devonian biotite granite to total depth at 3926 feet.

Middle Devonian marine sediments, which are exposed in the highlands 25 miles north of the well, were not encountered. Basal Tertiary gravels, although having good porosity and permeability, contained only freshwater. The Lower Carboniferous-Upper Devonian sandstones are well cemented and have very little porosity or permeability. No shows of hydrocarbons were found in the well.

One formation test was made over the interval 2522 to 2559 feet after a small quantity of gas was recorded by the gas detector. The test recovered only 120 feet of drilling mud anl;i the flowing pressures recorded were very low. The well was later plugged and abandoned as a dry hole.

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

Tags: AU-VIC, Earth Sciences, GA Publication, Other Publication, Published_External, petroleum exploration
Organization: Geoscience Australia Data
The determination of suspended-sediment loads in the southern Great Barrier Reef: field techniques

A mechanical system for collecting samples of suspended sediment in the water column at various stages of a tidal cycle, together with measurement of tidal current velocities, has provided quantitative data on suspended-sediment load transport in a modern coral reef environment. This is the first time that an experiment of this nature has been conducted in such an environment. Suspension load in the water column was monitored over One Tree Reef in the southern Great Barrier Reef by erecting sampling towers at various sites. Suspension loads were collected by siphon action at selected levels of the flooding tide and by a float-activated siphon system at selected levels of the falling tide. Suspended calcium carbonate in the samples was determined by complexometric titration. Water movement was monitored by fluorescein dye casts and arrays of bidirectional current meters. The results show large suspension-load fluxes, which fluctuate with the tidal cycle. Suspended-sediment transport into lagoons and over leeward margins is an important sedimentological process.

Tags: Earth Sciences, GA Publication, Journal, Published_External, QLD, marine
Organization: Geoscience Australia Data
Outer Darwin Harbour Marine Survey 2015: GA0351/SOL6187 Post-survey report

This report provides a description of the activities completed during the Outer Darwin Harbour Mapping Survey, from 28 May and 23 June 2015 on the RV Solander (Survey GA0351/SOL6187). This survey was a collaboration between Geoscience Australia (GA), the Australian Institute of Marine Science (AIMS) and Department of Land Resource Management (Northern Territory Government) and the first of four surveys in the Darwin Harbour Seabed Habitat Mapping Program. This 4 year program (2014-2018) aims to improve knowledge of the marine environments in the Darwin and Bynoe Harbour regions by collating and collecting baseline information and developing thematic habitat maps that will underpin future marine resource management decisions. The program was made possible through funds provided by the INPEX-led Ichthys LNG Project to Northern Territory Government Department of Land Resource Management, and co-investment from Geoscience Australia and Australian Institute of Marine Science. The specific objectives of the Outer Darwin Harbour Marine Survey GA0351/SOL6187 were to:
<ol>
<li>Obtain high resolution geophysical (bathymetry) data for outer Darwin Harbour, including Shoal Bay;</li>
<li>Characterise substrates (acoustic backscatter properties, grainsize, sediment chemistry) for outer Darwin Harbour, including Shoal Bay; and</li>
<li>Collect tidal data for the survey area.</li>
</ol>

Data acquired during the survey included: 720 km2 multibeam sonar bathymetry and acoustic backscatter; 96 sampling stations collecting seabed sediments, underwater photography and video imagery and oceanographic information including tidal data and 54 sound velocity profiles.

Tags: Earth Sciences, GA Publication, NT, Published_External, Record, backscatter, coastal waters, geochemistry, marine, marine biodiversity, multibeam, sedimentology
Organization: Geoscience Australia Data
Arafura Basin hydrogeological inventory

This Arafura 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 Arafura Basin is a large intracratonic sedimentary basin along the northern continental margin of Australia. Over 90% of the basin occurs offshore in relatively shallow marine waters of the Arafura Sea, with the basin extending northwards beyond Australia's territorial claim. The southern part of the basin is onshore in northern Arnhem Land. Older Paleo- to Mesoproterozoic rocks of the northern Macarthur Basin underlie most of the onshore basin, whereas Mesozoic and Cenozoic sediments of the Money Shoal Basin unconformably overlie the offshore basin.

The sedimentary record of the Arafura Basin spans greater than 250 million years, from the late Neoproterozoic to the early Permian. However, subsidence was episodic and restricted to four main phases of regional subsidence interspersed with relatively long periods of tectonic quiescence. Consequently, the entire sedimentary succession of the basin is relatively structurally conformable. The oldest rocks are the Neoproterozoic to Cambrian Wessel Group. These are overlain by the Middle Cambrian to early Ordovician Goulburn Group, followed by the Late Devonian Arafura Group. The uppermost sequence is Late Carboniferous to early Permian (an equivalent of the Kulshill Group from the neighbouring Bonaparte Basin).

The sedimentary rocks of the Arafura Basin are clastic-dominated and include sandstone, shale, limestone, dolostone and minor coal and glacial deposits. Most of the Arafura Basin formed within shallow marine environments, with evidence for fluvial conditions largely restricted to the Carboniferous to Permian rocks.

There are no detailed basin-scale studies on the hydrogeology and groundwater systems of the Arafura Basin. Previous hydrogeological investigations by the Northern Territory Government during the 1980s and 1990s focused on groundwater supplies for remote communities such as Maningrida, Galiwinku and Millingimbi. Groundwater for these communities is sourced from fractured rock sandstone aquifers, most likely units of the Arafura Basin such as the Marchinbar Sandstone and Elcho Island Formation of the Wessel Group. The aquifers are fractured and extensively weathered up to 100 metres below surface.

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: Geoscience Australia Data
Rosedale velocity survey of APM No 1 bore, Victoria, 1960

A seismic velocity survey of the APM Development Pty Limited No. 1 bore at Rosedale, Victoria, was made by the Geophysical Branch of the Bureau on the 3rd May 1960 using a TIC three-component well geophone. Measurements were taken with the geophone suspended in the well at selected intervals down to 5500 ft. The object of the survey was to measure the average vertical seismic velocities to depths down to the bottom of the bore, and to examine interval velocities over selected depth intervals.

Tags: AU-VIC, Earth Sciences, GA Publication, Published_External, Record
Organization: Geoscience Australia Data