Type of resources
L043 Emerald, Duaringa (Bowen Basin) seismic survey, QLD, 1960 Stacked seismic data and images for lines BMR60-A, BMR60-B, BMR60-C, BMR60-D, BMR60-E, BMR60-F, BMR60-G, BMR60-H, BMR60-J, BMR60-K, BMR60-L, BMR60-M, and BMR60-N
The Bureau of Mineral Resources, Geology and Geophysics (BMR) did a reconnaissance seismic survey in the central portion of the Bowen Basin in November, 1960. The objectives of the survey were to determine the structure of the Basin and the thickness of sediments by traversing from the western margin of the Basin near Anakie to the eastern margin east of Duaringa. Two other seismic surveys conducted in this Bowen Basin are Cooroorah Anticline seismic survey in 1959 (survey L037) and 254km seismic survey near the towns of Duaringa and Blackwater (survey L129).
JOINT INTERPRETATION OF A REGIONAL REFLECTION AND WIDE-ANGLE VIBROSEIS DATA, WITH MAGNETOTELLURIC AND GRAVITY MODELLS, GAWLER CRATON, SOUTH AUSTRALIA
In 2008, as part of the Australian Government's Onshore Energy Security Program, Geoscience Australia, acquired deep seismic reflection, wide-angle refraction, magnetotelluric (MT) and gravity data along a 250 km east-west transect that crosses several tectonic domain boundaries in the Gawler Craton and also the western boundary of the South Australian Heat Flow Anomaly (SAHFA). Geophysical datasets provide information on the crustal architecture and evolution of this part of the Archean-Proterozoic Gawler Craton. The wide-angle refraction and MT surveys were designed to supplement deep seismic reflection data, with velocity information for the upper crust, and electrical conductivity distribution from surface to the upper mantle. The seismic image of the crust from reflection data shows variable reflectivity along the line. The upper 2 s of data imaged nonreflective crust; the middle to lower part of the crust is more reflective, with strong, east-dipping reflections in the central part of the section.The 2D velocity model derived from wide-angle data shows velocity variations in the upper crust and can be constrained down to a depth of 12 km. The model consists of three layers overlying basement. The mid-crustal basement interpreted from the reflection data, at 6 km in depth in the western part of the transect and shallowing to 1 km depth in the east, is consistent with the velocity model derived from wide-angle and gravity data. MT modelling shows a relatively resistive deep crust across most of the transect, with more conductive crust at the western end, and near the centre. The enhanced conductivity in the central part of the profile is associated with a zone of high reflectivity in the seismic image. Joined interpretation of seismic data supplemented by MT, gravity and geological data improve geological understanding of this region.
L126 Canning Basin seismic survey, WA, 1988 Stacked seismic data and images for lines BMR88-01, BMR88-02, and BMR88-03 2018 vintage reprocessed L126 Canning Basin Data
Geoscience Australia conducted a seismic survey in the Canning Basin during the period May to November 1988. A total of 650 km of seismic line involving three traverses were shot twelve-fold using a station spacing 50 metres and shot interval of 200 metres. The surveying for this survey was carried out by the Australian Surveying and Land Information Group (AUSLIG) of the Commonwealth Department of Administrative Services. Geoscience Australia commissioned reprocessing of this legacy dataset to improve data quality, imaging reflective structural features within the basin. This reprocessing project is a collaboration between the Geoscience Australia Exploring for the Future (EFTF) program and The Government of Western Australia, Department of Mines, Industry Regulation and Safety, Exploration Incentive Scheme (EIS). Velseis Pty Ltd carried out reprocessing from December 2017 through July 2018. GA managed the project, QCed the data processing and at the end of the project archived the data. This dataset includes images and SEGY files for Stack, Pre-stack Migration and Post-Stack Migration data. The dataset is available for download. <b>Raw data for this survey are available on request from email@example.com - Quote eCat# 74956</b>
The Australian earth sciences have been recognized as part of Australia's key scientific capability to understand the structure and evolution of the Australian continent. Over the last five years, Geoscience Australia, through its Onshore Energy Security Program (OESP), in conjunction with the State and Territory Geological Surveys, the Predictive Mineral Discovery Cooperative Research Centre (pmd*CRC), the AuScope Earth Imaging (under Australian Government's National Collaborative Research Infrastructure Strategy) and the Australian National Seismic Imaging Resource has acquired over 6,500 line kilometres of new world-class seismic reflection data and over 3,700 kilometres of magnetotelluric (MT) data from more than 640 stations. Geoscience Australia acquires high quality deep seismic reflection data in most of Australia's economically significant geological regions, by collecting at least one deep seismic reflection traverse across the key structures. The acquisition parameters for regional vibroseis surveys have been selected from broad experience in hard rock environments and experimental programs prior to seismic acquisition. Three IVI HEMI-50 or 60 peak force vibrators are used with three 12 s varisweeps with 80 m between vibration points, 40 m group interval, and 20 s listening time to image down to approximately 60 km in depth. Geoscience Australia continues to provide expertise in deep crustal seismic reflection processing and mineral province interpretation to collaborative research programmes which focus on understanding the 3D crustal architecture and mineral systems within `hard-rock' mineral provinces. As part of this program , broadband and long period MT data have been acquired along 12 deep seismic reflection transects across potential mineral provinces and frontier sedimentary basins.
<p><b> Please note: This record has been made available internally for reference only</b> <p>PIMS is a search tool for discovery of survey and well data assets and physical samples held by the Geoscience Australia Repository. Data can be ordered and viewing of samples can be arranged via an online form. Although this is public data, fees are charged to cover the cost of transcription and delivery.
L138 Mt Isa Basin seismic survey, QLD, 1994 Stacked and migrated seismic data and images for lines 94MTI-01, 94MTI-02, 94ISA-01, 94ISA-02, 94ISA-03, and 94ISA-04
<p>The survey in the Mt. Isa and Duchess areas was performed by Dynamic Satellite Surveys for Geoscience Australia in 1994. The survey encompassed two lines, the first approximately 247 km in the area between Cloncurry and Mt. Isa and the second line of approximately 32 km in the Duchess area. The objective of this survey is part of the Mt Isa Transect multidisciplinary study of the structure and evolution of the Mt Isa region in Queensland.<p><b>Raw data for this survey are available on request from firstname.lastname@example.org - Quote eCat# 74943</b>
Very short News item for ASEG's Preview newsletter announcing the availability of the Tasman Frontier Geophysical Data Base
L141 & L143 Broken Hill Seismic survey, NSW, 1997 Stacked and migrated seismic data and images for lines 96AGS-BH1A, 96AGS-BH1B, 96AGS-HB2, and 96AGS-HB3
<p>Geoscience Australia conducted a seismic survey to discover ore bodies in the Broken Hill region in 1996. Seventy eight artefact locations were recorded during the survey, none of which will be impacted upon by the seismic line route which was realigned to avoid them.<p><b>Raw data for this survey are available on request from email@example.com - Quote eCat# 74886</b>
<p>A joint project between the Geology Department of the Australian National University and Geoscience Australia was conducted to investigate the crustal structure underlying the Tumut Trough, NSW. The objective of this survey was to image the bounding faults of the Tumut Trough, in order to test various geological models which have been proposed for its formation. Forty five kilometres of nominal a-fold common mid-point (CMP) seismic reflection data were collected in the two week recording period of the ANU vacation, from the 4-16 May. The traverse was chosen to cross the trough perpendicular to strike given the constraint of using existing roads and tracks. The seismic traverse started a km NNE of Adjungbilly and finished 3 km SW of Midway.<p><b>Raw data for this survey are available on request from firstname.lastname@example.org - Quote eCat# 76517</b>
L096 Gosses Bluff deep crustal seismic survey (Amadeus Basin), NT, 1969. Stacked seismic data and images for line BMR69-1A
Two radial traverses each about 16 miles along were surveyed through Gosses Bluff area of the Amadeus Basin, NT, using variously single coverage and 3-, 6- and 12- fold multiple coverage. This survey was part of a combined geological and geophysical investigation of the feature being undertaken jointly by the United States Geological Survey (USGS) and Bureau of Mineral Resources (BMR). The USGS, which undertakes astrogeological studies for the National Aeronautics and Space Administration (NASA), is studying the Gosses Bluff structure, and other similar structures throughout the world, mainly in order to contribute to a greater understanding of similar features on the surface of the Moon. The seismic survey was intended to define the various structural features of the Bluff more precisely than has been possible from previous investigation. Raw data for this survey are available on request from email@example.com - Quote eCat# 74981