d4c540f0-2696-40b0-8e28-f2e9b13f2897 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-10-16T11:59:49 creation ISO 19115 2016 L034 Surat experimental seismic reflection and refraction survey, QLD, 1958 d4c540f0-2696-40b0-8e28-f2e9b13f2897 An experimental seismic survey was conducted at Surat, Queensland, on behalf of the Australisa Oil and Gas Corporation Limited during a five week period from May 28th to July 2nd. 1958. The area lies within the southeastern portion of the Great Artesian. Basin on Authority to Prospect No. 36P and, sel the evidence of numerous bores near Roma, and a few other scattered bore logs, is considered to contain sediments suitable for the generation and accumulation of hydrocarbons in possible, economic vantities. A local geological survey by the Australian Oil & Gas Corporation suggested a structure of considerable dimensions - the 'Weribone Uplift' - which, if substantiated, would provide a promising location for a stratigraphic test bore. The experimental survey conducted by the Bureaushowed that useful results could be obtained throughout the area by conventional methods of reflection and refraction shooting. The reflection shooting indicated a fairly uniform sedimentary section with generally flat-lying beds and a probable total thickness of 7,000 to 8,000 feet. The refraction work recorded several velocities: including one near 19,000 f/s which is assumed to be a basement velocity. Depths measured to this high Velocity refractor support the estimate of the thickness of sediments made from the reflection cross-section and indicate 4 south component of dip of about 40 ft. per mile across the area surveyed. Neither the reflection nor the refraction work gave any evidence for the existence of the 'Weribone Uplift'. However, the more northerly refraction traverse indicated a local component of north dip at basement depth, and a single reflection record shot along that traverse suggested a substantial thickening of the deeper sediments towards the north. Insufficient seismic work was done to estimate the northwards extent of this dip. Such limited evidence might well indicate a purely local irregularity in basement topography. On the other hand, the north dip could be extensive, and therefore structurally significant. Any further seismic work contemplated in this area should be directed, in the first instance, towards checking this possibility. {"type": "Polygon", "coordinates": [[[149.0, -27.75], [149.5, -27.75], [149.5, -26.5], [149.0, -26.5], [149.0, -27.75]]]} 149.0 149.5 -27.75 -26.5 AU-QLD HVC_144637 Published_External Seismic Data seismic survey Seismology and Seismic Exploration geophysics petroleum exploration seismic reflection seismic refraction Download the file (misc) documentDigital Download the file (misc) ZIP Unnamed resource documentDigital HTML