Staff View: Platinum group elements in proximal impactites of the Bukit Bunuh impact structure, Malaysia

Platinum group elements in proximal impactites of the Bukit Bunuh impact structure, Malaysia

The Bukit Bunuh in Malaysia has recently been identified as an impact structure after the discovery of possible impact-melt-like rocks and impact breccias from this area. The impact event is believed to have occurred around 1.34-1.84 Ma. Twelve impact-related rocks from this suspected impact structu...

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Main Authors:	Quek, L.X, Ghani, A.A., Badruldin, M.H., Saidin, M., Harith, Z.Z.T., Roselee, M.H.
Format:	Article
Published:	2015
Subjects:	Q Science (General) T Technology (General)
Online Access:	http://eprints.um.edu.my/16081/
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spelling	my.um.eprints.160812016-07-25T08:44:55Z http://eprints.um.edu.my/16081/ Platinum group elements in proximal impactites of the Bukit Bunuh impact structure, Malaysia Quek, L.X Ghani, A.A. Badruldin, M.H. Saidin, M. Harith, Z.Z.T. Roselee, M.H. Q Science (General) T Technology (General) The Bukit Bunuh in Malaysia has recently been identified as an impact structure after the discovery of possible impact-melt-like rocks and impact breccias from this area. The impact event is believed to have occurred around 1.34-1.84 Ma. Twelve impact-related rocks from this suspected impact structure were analysed in the present study for platinum group of element (PGE) content. The sample population includes proximal impactites (two impact-melt rocks and three impact breccias) and possible impact-related rocks (four mylonites) and basement granite (three in number). The results showed no observable clear distinction between the impactites and basement granite. Compared to other asteroid impact sites in the world, the impactites and impact-related rocks in the Bukit Bunuh structure clearly contain a lower concentration of PGEs. Even though previous studies reported possible evidences of shock metamorphism in the Bukit Bunuh structure and electrical resistivity survey favoured the presence of asteroid impact structure in this area as well, the absence of a clear projectile signature in our study on PGE hinders further discussion on the existence and nature of the impact. We suggest that the absence of any PGE signature in the Bukit Bunuh impactites could be indicative either of (1) an achondrite projectile, or (2) an oblique impact or (3) the presence of a volatile-rich layer. 2015 Article PeerReviewed Quek, L.X and Ghani, A.A. and Badruldin, M.H. and Saidin, M. and Harith, Z.Z.T. and Roselee, M.H. (2015) Platinum group elements in proximal impactites of the Bukit Bunuh impact structure, Malaysia. Current Science, 109 (12). pp. 2303-2308. ISSN 0011-3891
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	Q Science (General) T Technology (General)
spellingShingle	Q Science (General) T Technology (General) Quek, L.X Ghani, A.A. Badruldin, M.H. Saidin, M. Harith, Z.Z.T. Roselee, M.H. Platinum group elements in proximal impactites of the Bukit Bunuh impact structure, Malaysia
description	The Bukit Bunuh in Malaysia has recently been identified as an impact structure after the discovery of possible impact-melt-like rocks and impact breccias from this area. The impact event is believed to have occurred around 1.34-1.84 Ma. Twelve impact-related rocks from this suspected impact structure were analysed in the present study for platinum group of element (PGE) content. The sample population includes proximal impactites (two impact-melt rocks and three impact breccias) and possible impact-related rocks (four mylonites) and basement granite (three in number). The results showed no observable clear distinction between the impactites and basement granite. Compared to other asteroid impact sites in the world, the impactites and impact-related rocks in the Bukit Bunuh structure clearly contain a lower concentration of PGEs. Even though previous studies reported possible evidences of shock metamorphism in the Bukit Bunuh structure and electrical resistivity survey favoured the presence of asteroid impact structure in this area as well, the absence of a clear projectile signature in our study on PGE hinders further discussion on the existence and nature of the impact. We suggest that the absence of any PGE signature in the Bukit Bunuh impactites could be indicative either of (1) an achondrite projectile, or (2) an oblique impact or (3) the presence of a volatile-rich layer.
format	Article
author	Quek, L.X Ghani, A.A. Badruldin, M.H. Saidin, M. Harith, Z.Z.T. Roselee, M.H.
author_facet	Quek, L.X Ghani, A.A. Badruldin, M.H. Saidin, M. Harith, Z.Z.T. Roselee, M.H.
author_sort	Quek, L.X
title	Platinum group elements in proximal impactites of the Bukit Bunuh impact structure, Malaysia
title_short	Platinum group elements in proximal impactites of the Bukit Bunuh impact structure, Malaysia
title_full	Platinum group elements in proximal impactites of the Bukit Bunuh impact structure, Malaysia
title_fullStr	Platinum group elements in proximal impactites of the Bukit Bunuh impact structure, Malaysia
title_full_unstemmed	Platinum group elements in proximal impactites of the Bukit Bunuh impact structure, Malaysia
title_sort	platinum group elements in proximal impactites of the bukit bunuh impact structure, malaysia
publishDate	2015
url	http://eprints.um.edu.my/16081/
_version_	1643690196614512640
score	13.211869

Platinum group elements in proximal impactites of the Bukit Bunuh impact structure, Malaysia

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