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Integrated geophysical modelling of a giant, complex impact structure: anatomy of the Vredefort Structure, South Africa
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The central area of Vredefort has only been mildly affected by post-impact deformation.
“The central area, (1986,1990).however, has only been mildly affected by post-impact deformation (Henkel and Reimold 1998).”
From Observations and interpretations at Vredefort, Sudbury, and Chicxulub: Towards an empirical model of terrestrial impact basin formation (2008) · cites this paper as Henkel and Reimold 1998
Reasoned estimates of the amount of original structural uplift at Vredefort are 20-30 km.
“Reasoned estimates of the amount of original structural uplift and the apparent diameter of the Vredefort impact structure are 20-30 km and 250-300 km, respectively (Therriault et al. 1997;Gibson and Reimold 2001;Henkel and Reimold 1998).”
From Observations and interpretations at Vredefort, Sudbury, and Chicxulub: Towards an empirical model of terrestrial impact basin formation (2008) · cites this paper as Henkel and Reimold 1998
Reasoned estimates of the apparent diameter of the Vredefort impact structure are 250-300 km.
“Reasoned estimates of the amount of original structural uplift and the apparent diameter of the Vredefort impact structure are 20-30 km and 250-300 km, respectively (Therriault et al. 1997;Gibson and Reimold 2001;Henkel and Reimold 1998).”
From Observations and interpretations at Vredefort, Sudbury, and Chicxulub: Towards an empirical model of terrestrial impact basin formation (2008) · cites this paper as Henkel and Reimold 1998
There has been some post-impact deformation at Vredefort, with shortening in a NW-SE direction in the outer regions.
“There has been some post-impact deformation at Vredefort, with shortening in a NW-SE direction in the outer regions.”
From Observations and interpretations at Vredefort, Sudbury, and Chicxulub: Towards an empirical model of terrestrial impact basin formation (2008) · cites this paper as Henkel and Reimold 1998
Forward modelling of the potential field data at Vredefort does not provide the level of detail on structural features afforded by the reflection seismic data.
“Although forward modelling of the potential field data at Vredefort has been used to constrain the impact event and the extent of impact-related crustal movements at the regional scale (Henkel and Reimold 1998), they do not provide the level of detail on structural features afforded by the reflection seismic data.”
From Observations and interpretations at Vredefort, Sudbury, and Chicxulub: Towards an empirical model of terrestrial impact basin formation (2008) · cites this paper as Henkel and Reimold 1998
If seismically imaged structures exterior to the Chicxulub rim are similarly scaled, the outer limit of impact-related deformation at Vredefort is ~300 km in diameter, corresponding to apparent rim diameter estimates of Therriault et al. (1997) and Henkel and Reimold (1998).
“If the seismically imaged structures exterior to the rim at Chicxulub are similarly scaled, the outer limit of impact-related deformation at Vredefort is ~300 km in diameter, which corresponds to the apparent rim diameter estimates of Therriault et al. (1997) and Henkel and Reimold (1998), using the definitions of Turtle et al. (2005).”
From Observations and interpretations at Vredefort, Sudbury, and Chicxulub: Towards an empirical model of terrestrial impact basin formation (2008) · cites this paper as Henkel and Reimold (1998)
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Research works printed but not linked: 31
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- Kamo, 1996, A 2.023 Ga age for the Vredefort impact event and a first report of shock metamorphosed zircons in pseudotachylitic breccias and Granophyre, Earth Planet. Sci. Lett., 144, 369, 10.1016/S0012-821X(96)00180-X · DOI · Paper page
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- Reimold, 1995, Fission Xenon dating of Witwatersrand uraninite: Implications for geological activity in the Central Kaapvaal Craton about 1 Ga ago, Geochim. Cosmochim. Acta, 59, 5177, 10.1016/0016-7037(95)00354-1 · DOI
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GRIEVE, R. A. F., REIMOLD, W. U., MORGAN, J., RILLER, U., & PILKINGTON, M. (2008) · Meteoritics & Planetary Science · doi:10.1111/j.1945-5100.2008.tb01086.x · Cited by 90
Self-citation
Metadata
- Authors
- Henkel, H., & Uwe Reimold, W.
- Venue
- Tectonophysics
- Publisher
- Elsevier BV
- Published
- 1998-03
- Volume
- 287
- Issue
- 1-4
- Pages
- 1-20
- ISSN
- 0040-1951
- Cited by
- 101
- References
- 0
- Language
- en
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