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1991 seismic survey, Mount Hope, final report.
Created: 13 Nov 2024 Revised: 13 Nov 2024
Author: Roberts, D.C.;Devine, S.B.;Lovibond, R.

AIM: The Mount Hope Seismic Survey main objective was to obtain additional detail of, and mature for drilling in 1992, two leads confirmed by the 1990 Hatherleigh Seismic Survey. The Mount Hope lead on the SE flank of the Beachport High required...

AIM: The Mount Hope Seismic Survey main objective was to obtain additional detail of, and mature for drilling in 1992, two leads confirmed by the 1990 Hatherleigh Seismic Survey. The Mount Hope lead on the SE flank of the Beachport High required more definition, but access was restricted by the proximity of Rivoli Bay. Profiling of the Rendelsham lead was similarly restricted by proximity to the Canunda National Park and the Lake Frome Swamp. Another objective of the survey was to provide regional infill in the north and east of PEL 40 in order to reveal possible other leads on the flanks of the Beachport and Hatherleigh highs. METHODS: Survey dates: 1/2/91 - 6/3/91. Energy source: Vibroseis (plus dynamite in swamps). CDP coverage: 6000%. Recording mode: 240 channel digital - Sercel SN368 recorder. VP interval: 40.0 metres, group interval: 20.0 metres. RESULTS: 17 lines totalling 257.8 line km were acquired by Western Geophysical and processed in Perth, WA by Simon Horizon. Selected older seismic data from the 1980 Rendelsham Survey (67 line km), plus all of the 1990 Hatherleigh Survey data (186 line km), were reprocessed at the same time, and four 1986 lines over the Hatherleigh High (total 43 line km) were redisplayed. The Mount Hope survey successfully recorded high quality Vibroseis and dynamite data which infills the 1990 Hatherleigh grid and has led to the mapping of at least three structural leads. On the fault-controlled Mount Hope anticlinal closure south of the Beachport East 1 well, a crestal drilling location is apparent near VP 826 on line HA90-09. Another closure mapped against the northern end of the Hatherleigh High has been named the Biscuit Flat lead. A small closure has been mapped over the Rendelsham High at top Crayfish Formation unconformity level but needs further seismic to define its crest, since erosion effects have complicated mapping by causing severe local data quality deterioration. An additional small survey in early 1992 is thus recommended to mature the Rendelsham and Biscuit Flat leads into drillable prospects.

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About this record

Record No mesac34115
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Geophysical Report - Final
Contributor Sagasco Resources Ltd;Western Geophysical Co.;Simon Horizon Australia Pty Ltd;Exploration Field Services Pty Ltd;Velocity Data Pty Ltd
Sponsor
Tenement PEL 40
Tenement Holder Sagasco Resources Ltd
Operator Sagasco Resources Ltd
Geological Province Otway Basin
Mine Name Mount Hope Prospect;Rendelsham strong lead;Biscuit Flat strong lead
Stratigraphy
Commodity
    Notes 
    Notes: Comprises two letters (application to carry out the survey including a declaration of environmental factors; slight modification to survey) and a final report. Separate operations, processing, environmental audit and field reports are...
    Notes: Comprises two letters (application to carry out the survey including a declaration of environmental factors; slight modification to survey) and a final report. Separate operations, processing, environmental audit and field reports are included as appendixes. Field statics data (App. 5) is not included in the PDF. Maps include "base Eumeralla Formation / top Crayfish Formation", "intra - Crayfish Fm. reflector" and "near top basement" interpretive time structure.
Geographic Locality: South-East;Beachport;Rendelsham;Hatherleigh;Southend;Lake Frome;Lake Bonney;Woakwine Range;Belt Range
Doc No: Env 08371

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    Language English
    Metadata Standard ISO 19115-3

    Citations

    Use constraints License
    License Creative Commons Attribution 4.0
    Persistent identifier https://pid.sarig.sa.gov.au/document/mesac34115
    Citation Roberts, D.C.;Devine, S.B.;Lovibond, R. 1991 seismic survey, Mount Hope, final report. Geophysical Report - Final
    https://pid.sarig.sa.gov.au/document/mesac34115

    Technical information

    Status
    Maintenance and Update Frequency
    Geographic Reference GDA2020 (EPSG:7844)
    Geo bounding box {"type":"Polygon","coordinates":[[[140,-38],[140.5,-38],[140.5,-37],[140,-37],[140,-38]]]}
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