K-Ar evidence from illitic clays of a Late Devonian age for the 120 km diameter Woodleigh impact structure, Southern Carnarvon Basin, Western Australia

Uysal, I.Tonguç, Golding, Suzanne D., Glikson, Andrew Y., Mory, Arthur J and Glikson, Miryam (2001) K-Ar evidence from illitic clays of a Late Devonian age for the 120 km diameter Woodleigh impact structure, Southern Carnarvon Basin, Western Australia. Earth and Planetary Science Letters, 192 3: 281-289. doi:10.1016/S0012-821X(01)00450-2


Author Uysal, I.Tonguç
Golding, Suzanne D.
Glikson, Andrew Y.
Mory, Arthur J
Glikson, Miryam
Title K-Ar evidence from illitic clays of a Late Devonian age for the 120 km diameter Woodleigh impact structure, Southern Carnarvon Basin, Western Australia
Formatted title
K–Ar evidence from illitic clays of a Late Devonian age for the 120 km diameter Woodleigh impact structure, Southern Carnarvon Basin, Western Australia
Journal name Earth and Planetary Science Letters   Check publisher's open access policy
ISSN 0012-821X
1385-013X
Publication date 2001-10-30
Sub-type Article (original research)
DOI 10.1016/S0012-821X(01)00450-2
Volume 192
Issue 3
Start page 281
End page 289
Total pages 9
Editor E. Bard
Place of publication Amsterdam, Netherlands
Publisher Elsevier Science
Collection year 2001
Language eng
Subject 260301 Geochronology and Isotope Geochemistry
C1
780104 Earth sciences
0402 Geochemistry
Formatted abstract
Woodleigh is a recently discovered impact structure with a diameter of 120 km, and thereby represents the third largest proven Phanerozoic impact structure known after Morocweng and Chicxulub. K–Ar isotopic studies of fine-grained authigenic illitic clay minerals (<2 μm), considered to be impact-induced hydrothermal alteration products, indicate a Late Devonian (359±4 Ma) age for the impact. Other evidence reported for Late Devonian extraterrestrial impacts include the strong iridium anomaly in the Canning Basin, Western Australia, and microtektites and elemental anomalies (including iridium) in South China. Given the large diameter of the Woodleigh impact structure and its relative proximity to iridium anomalies also of Late Devonian age in eastern Gondwana basins, environmental effects of the Woodleigh impact event are a likely contributor to a biotic crisis in the Late Devonian.
© 2001 Elsevier Science B.V. All rights reserved.
Keyword Woodleigh impact structure
Illitic clays
Impacts
Woodleigh
Illite
K/Ar
Mass extinctions
Western Australia
Chicxulub Crater
Melt rock
Mars
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Earth Sciences Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 32 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 30 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 10 Apr 2007, 13:27:29 EST by Mrs Leith Woodall on behalf of School of Earth Sciences