Skip to Main Content
GeoScienceWorld
Skip Nav Destination
Large Meteorite Impacts and Planetary Evolution IV
GSA Special Papers

Large Meteorite Impacts and Planetary Evolution IV

Author(s)
Roger L. Gibson
Roger L. Gibson
Impact Cratering Research Group, School of Geosciences, University of the Witwatersrand, Johannesburg, South Africa
Search for other works by this author on:
GSW
Google Scholar
Wolf Uwe Reimold
Wolf Uwe Reimold
Museum für Naturkunde-Leibniz Institute at Humboldt University, Berlin, Germany
Search for other works by this author on:
GSW
Google Scholar
Geological Society of America
Volume
465
DOI:
https://doi.org/10.1130/SPE465
Copyright:
© 2010 Geological Society of America
Attribution: You must attribute the work in the manner specified by the author or licensor (but no in any way that suggests that they endorse you or your use of the work).
Noncommercial - you may not use this work for commercial purpose.
No Derivative works - You may not alter, transform, or build upon this work.
Sharing - Individual scientists are hereby granted permission, without fees or further requests to GSA, to use a single figure, a single table, and/or a brief paragraph of text in other subsequent works and to make unlimited photocopies of items in this journal for noncommercial use in classrooms to further education and science.
ISBN print:
9780813724652
Publication date:
September 01, 2010
Book Chapter

A possible new impact structure in the Okavango Delta, Botswana

Author(s)
G.R.J. Cooper
G.R.J. Cooper
School of Geosciences, University of the Witwatersrand, Private Bag 3, PO WITS, Johannesburg 2050, South Africa
Search for other works by this author on:
GSW
Google Scholar
;
S.J. Webb
S.J. Webb
School of Geosciences, University of the Witwatersrand, Private Bag 3, PO WITS, Johannesburg 2050, South Africa
Search for other works by this author on:
GSW
Google Scholar
;
R.L. Gibson
R.L. Gibson
Impact Cratering Research Group, School of Geosciences, University of the Witwatersrand, Private Bag 3, PO WITS, Johannesburg 2050, South Africa
Search for other works by this author on:
GSW
Google Scholar
;
I. Martinez
I. Martinez
Tsodilo Resources Ltd., 161 Bay Street, Box 508, Toronto, Ontario M5J 2SI, Canada
Search for other works by this author on:
GSW
Google Scholar
Doi:
https://doi.org/10.1130/2010.2465(13)
  • Published:
    September 01, 2010

Aeromagnetic data reveal a possible 15–20 km wide impact structure in the Okavango Delta, Botswana. The identified structure is located at 19°07′40.0″S, 23°18′12.7″E, and it is marked by a circular region of subdued magnetic intensity ~18 km across with a central magnetic peak. It does not appear to be visible in either Google Earth imagery or Shuttle Radar Topography Mission (SRTM) topographic data, and gravity data are too sparse in this region to image the structure. The regional magnetic fabric continues through the anomaly. The central magnetic peak has an amplitude of >700 nT. Modeling of the magnetic data indicates that the structure might be buried beneath ~200–500 m of sediments, and it has a magnetically modeled central uplift that is ~5 km wide.

You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
  • Copyright © 2023
GeoScienceWorld
  • 1750 Tysons Boulevard, Suite 1500
  • McLean, VA 22102
  • Telephone: 1-800-341-1851
  • Copyright © 2023 GeoScienceWorld
Close Modal
This Feature Is Available To Subscribers Only

or Create an Account

Close Modal
Close Modal
This site uses cookies. By continuing to use our website, you are agreeing to our privacy policy.
Accept