A regional scale gravity survey of the Southern Cross Greenstone Belt, Western Australia
A case study is presented from the Southern Cross Greenstone Belt, Western Australia, where regional scale gravity data have been collected in order to study the belt and associated granitoid bodies. Differential Global Positioning System (GPS) satellite surveying techniques have been used to coordi...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
CSIRO Publishing
1995
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| Online Access: | http://hdl.handle.net/20.500.11937/14298 |
| _version_ | 1848748586169270272 |
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| author | Rout, D. Dentith, M. Featherstone, Will |
| author_facet | Rout, D. Dentith, M. Featherstone, Will |
| author_sort | Rout, D. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A case study is presented from the Southern Cross Greenstone Belt, Western Australia, where regional scale gravity data have been collected in order to study the belt and associated granitoid bodies. Differential Global Positioning System (GPS) satellite surveying techniques have been used to coordinate the gravity observations, and automated processing techniques, such as terrain corrections based on digital elevation models (DEMs), have been used as part of the study. These approaches greatly reduce the manual effort and time needed to collect and process the gravity data. While the use of GPS methods introduces further considerations in data reduction, such as the geoid-spheroid separation, it can provide up to a 250% increase in efficiency in the field while collecting survey data. The computer based terrain correction calculation using a DEM provides a considerable saving in the time expended on data reduction. With the introduction of such field practices and reduction methods, gravity as a semi-regional scale exploration tool is becoming more attractive. The present study has shown that station spacings of 1 km should be considered a maximum when working on the semi-regional scale (50?60 km square areas), with closer station spacings (500 m maximum) more appropriate close to expected geological contacts. |
| first_indexed | 2025-11-14T07:07:24Z |
| format | Journal Article |
| id | curtin-20.500.11937-14298 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:07:24Z |
| publishDate | 1995 |
| publisher | CSIRO Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-142982017-09-13T15:57:40Z A regional scale gravity survey of the Southern Cross Greenstone Belt, Western Australia Rout, D. Dentith, M. Featherstone, Will A case study is presented from the Southern Cross Greenstone Belt, Western Australia, where regional scale gravity data have been collected in order to study the belt and associated granitoid bodies. Differential Global Positioning System (GPS) satellite surveying techniques have been used to coordinate the gravity observations, and automated processing techniques, such as terrain corrections based on digital elevation models (DEMs), have been used as part of the study. These approaches greatly reduce the manual effort and time needed to collect and process the gravity data. While the use of GPS methods introduces further considerations in data reduction, such as the geoid-spheroid separation, it can provide up to a 250% increase in efficiency in the field while collecting survey data. The computer based terrain correction calculation using a DEM provides a considerable saving in the time expended on data reduction. With the introduction of such field practices and reduction methods, gravity as a semi-regional scale exploration tool is becoming more attractive. The present study has shown that station spacings of 1 km should be considered a maximum when working on the semi-regional scale (50?60 km square areas), with closer station spacings (500 m maximum) more appropriate close to expected geological contacts. 1995 Journal Article http://hdl.handle.net/20.500.11937/14298 10.1071/EG995233 CSIRO Publishing restricted |
| spellingShingle | Rout, D. Dentith, M. Featherstone, Will A regional scale gravity survey of the Southern Cross Greenstone Belt, Western Australia |
| title | A regional scale gravity survey of the Southern Cross Greenstone Belt, Western Australia |
| title_full | A regional scale gravity survey of the Southern Cross Greenstone Belt, Western Australia |
| title_fullStr | A regional scale gravity survey of the Southern Cross Greenstone Belt, Western Australia |
| title_full_unstemmed | A regional scale gravity survey of the Southern Cross Greenstone Belt, Western Australia |
| title_short | A regional scale gravity survey of the Southern Cross Greenstone Belt, Western Australia |
| title_sort | regional scale gravity survey of the southern cross greenstone belt, western australia |
| url | http://hdl.handle.net/20.500.11937/14298 |