Volcanic rocks of the Semantan Formation in the vicinity of Gunung Benom, Pahang

Umor, Mohd Rozi; Ghani, Azman A.; Mohamad, Hamzah

doi:10.7186/bgsm58201207

Cited by 2 publications

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“…The Gua Musang Formation is metamorphosed to sub-greenschist facies, as evidenced by the preferred alignment of sericite with cataclastic, zoned and strongly saussuritized relict feldspars (Khoo and Lim, 1983), and is affected by numerous structures formed during the E-W Indosinian shortening and subsequent normal faulting, (Md Ali et al, 2016). The upper part of the Gua Musang Formation laterally inter-fingers with carbonaceous shales, siltstones and volcanics of the Semantan Formation (Ismail et al, 2007;Lee, 2009;Madon, 2010;Nuraiteng Tee Abdullah, 2009;Umor et al, 2012), considered to represent the sediments, volcanics and volcaniclastics of a fore-arc basin deposited over the accretionary wedge situated at the margin of the Sukhothai arc (Hutchison, 1989;Metcalfe, 2000). In the study area, the Gua Musang Formation appears to become regressive and towards the top it is gradually replaced by a conglomeratic-sandstone sequence and terrestrial sediments (the Koh Formation of Aw, 1990;Nuraiteng Tee Abdullah, 2009).…”

Section: The Stong Complex and Taku Schistmentioning

confidence: 99%

Late Cretaceous extension and exhumation of the Stong and Taku magmatic and metamorphic complexes, NE Peninsular Malaysia

Ali

Maţenco

Willingshofer

et al. 2017

Journal of Asian Earth Sciences

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Section: The Stong Complex and Taku Schistmentioning

confidence: 99%

Late Cretaceous extension and exhumation of the Stong and Taku magmatic and metamorphic complexes, NE Peninsular Malaysia

Ali

Maţenco

Willingshofer

et al. 2017

Journal of Asian Earth Sciences

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Petrographic and geochemical characteristic of volcanic rocks from Tasik Kenyir and Kampung Awah, East Malaya block, Peninsular Malaysia

Roselee

Umor

Ghani

et al. 2018

AIP Conference Proceedings

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Kampung Awah and Tasik Kenyir are geologically located in East Malaya Blocks. These block is also known as western margin of Indochina terrane. Apart from sedimentary formations, East Malaya Blocks is also dominated by plutonic and volcanic rocks of mafic to rhyolitic compositions. Petrography and geochemical data suggest that Kampung Awah and Tasik Kenyir are one of locations which consists of volcanic rocks of generally basaltic to basaltic andesite compositions. Volcanic rocks from both area consists of plagioclcase, clinopyroxene, orthpyroxene as main mineral constituents with minor occurrences of hornblende. Geochemical data also indicate that volcanic rocks from both area were formed during subduction of the Paleo-tethys oceanic underneath the East Malaya Block or Indochina terrane. Most of the samples are metaluminous which indicate the volcanics are derived from igneous origin. This paper will contribute new geochemical data of mafic volcanics from Kampung Awah and Tasik Kenyir with the support of petrographic and field evidence to deduce the magma evolution and the tectonic setting.

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Volcanic rocks of the Semantan Formation in the vicinity of Gunung Benom, Pahang

Cited by 2 publications

References 0 publications

Late Cretaceous extension and exhumation of the Stong and Taku magmatic and metamorphic complexes, NE Peninsular Malaysia

Late Cretaceous extension and exhumation of the Stong and Taku magmatic and metamorphic complexes, NE Peninsular Malaysia

Petrographic and geochemical characteristic of volcanic rocks from Tasik Kenyir and Kampung Awah, East Malaya block, Peninsular Malaysia

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