Use of Real and Artificial Constraints in Regional Gravity Interpretation

J.B. Connelly

doi:10.1071/EG977125

ISSN: 0812-3985
E-ISSN: 1834-7533

Use of Real and Artificial Constraints in Regional Gravity Interpretation
Authors J.B. Connelly^a
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^a Bureau of Mineral Resources, Geology & Geophysics, Canberra, , A.C.T.
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 8, Issue 4, Dec 1977, p. 125 - 128
DOI: https://doi.org/10.1071/EG977125
- Published online: 01 Dec 1977

Abstract

Models of subsurface structure derived from gravity data are inherently non-unique. The problem of non-uniqueness can be partly overcome by the rigorous application of all known physical constraints and by the introduction of some artificial constraints. The use of these constraints is illustrated by models along three profiles across the Papuan Ultramafic Belt. The resulting models tend to be uncomplicated thus avoiding overinterpretation and emphasizing regional features.

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1977-12-01

2026-01-13

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References

BIRCH, F., 1961. The velocity of compressional waves in rocks to 10 kbar 2. Journal of Geophysical Research, 66, 2199-2224.
CONNELLY, J.B. {in prep.). Left lateral shearing of the Papuan Ultramafic Belt and its implications for the tectonics of the Melan-esian region. BMR Journal of Australian Geology and Geophysics.
DAVIES, H.L., 1971. Peridotite-gabbro-basalt complex in Papua: An overthrust of oceanic mantle and crust. Australian Bureau of Mineral Resources, Bulletin 128.
FINLAYSON, D.M., MUIRHEAD, K.E., WEBB, J.P., GIBSON, G., FURUMOTO, A.S., COOKE, R.J.S., and RUSSELL, A.J., 1976. Seismic investigations of the Papuan Ultramafic Belt. Geophysical Journal of Royal Astronomical Society, 44, 45-60.
KROENKE, L.W., MANCHNANI, M.H., RAI, C.S., FRYER, P., and RAMANANANTOANDRO, R., 1974. Elastic properties of selected opt>iolitic rocks from Papua New Guinea: nature and composition of oceanic lower crust and upper mantle. In: The Geophysics of the Pacific Ocean Basin and its Margin. American Geophysical Union, Geophysical Monograph 19. pp. 407-421.
NAFE, J.E., and DRAKE, C.L., 1963. Physical properties of marine sediments. In: The Sea, vol. 3. edited by M.N. Hill, pp. 794-815. Interscience Publisher, New York.

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Article Type: Research Article

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Use of Real and Artificial Constraints in Regional Gravity Interpretation

Abstract

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