Authors / CoAuthors
Geoscience Australia
Abstract
Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The gravity data collection contains both onshore and offshore data acquired on geophysical surveys conducted by Commonwealth, State & NT Governments and the private sector.
Product Type
collection
eCat Id
74512
Contact for the resource
Point of contact
- Contact instructions
- MEG
Resource provider
Keywords
- ( Theme )
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- ground gravity
- ( Theme )
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- geoscience
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- AU
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Gravimetrics
- ( Theme )
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- Geophysical Data Collection
- ( Theme )
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- Gravity Digital Data
- ( Data centre )
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- NCI
- ( Discipline )
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- Earth sciences
- ( Discipline )
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- geophysics
- ( Feature type )
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- grid
- ( Place )
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- Australia
- ( Theme )
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- DC2020
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- Published_External
Publication Date
2009-01-01T00:00:00
Creation Date
Security Constraints
Legal Constraints
Special, MOU, etc.
Access - license
Use - license
Status
Purpose
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Lineage
The gravity data set contains more than 1.57 million reliable onshore stations gathered during more than 1800 surveys. The collection also includes a large number of data acquired during seismic surveys from Australia offshore basins. Continental Australia has a basic station spacing coverage of 11 km, with South Australia, Tasmania and part of New South Wales covered at a spacing of 7 km. Victoria has station coverage of approximately 1.5 km. Some areas of scientific or economic interest have been infilled with station spacings between 2 km and 4 km by recent Commonwealth, State and Territory Government initiatives. Other areas of detailed coverage have been surveyed by private companies for exploration purposes. The data quality varies depending on the survey. The data are processed via standard methods to ensure the response recorded in the data is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data are checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.
Parent Information
Australian Geophysical Data Collection
UUID - 0a83ee36-d332-4669-a9fc-dfa7cec5c703,
eCat ID - 100444
Extents
[-55, -9, 90, 175]
Reference System
Spatial Resolution
Service Information
Associations
Downloads and Links
Source Information
The gravity data set contains more than 1.57 million reliable onshore stations gathered during more than 1800 surveys, and some data collected during seismic surveys from Australia offshore basins. The data were acquired during the Commonwealth, State and Northern Territory Governments surveys. 90 175 -55 -9