Thrust in the semanggol formation, kuala ketil, kedah

Zaiton Harun, Basir Jasin, Norshida Mohsin, Azrelawati Azami

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    An excavation of a small hill, Bukit Kukus in the vicinity of Kuala Ketil town exposed the chert unit of the Semanggol Formation which comprises black mudstone, sandstone, tuffaceous sandstone, tuff, paraconglomerate, siliceous shale and chert. The chert contains radiolarians indicating late Early Permian to Middle Triassic of age. These rocks are generally thrusted northward. The thrust and the normal faults occupy the same orientation of fault planes. The dextral faults also occupy the same orientation as the Bok Bak fault which is of sinistral. As the result of transpressional deformation northward thrusts occupy fault planes which were formally the normal faults. The normal faults are the extensional faults resulting from the sinistral movement of the Bok Bak fault. The northward thrust is generated from the dextral movements along the northwest and west-northwestern faults, and is interpreted to be the youngest fault movement onshore.

    Original languageEnglish
    Pages (from-to)61-66
    Number of pages6
    JournalBulletin of the Geological Society of Malaysia
    Issue number55
    Publication statusPublished - Nov 2009

    Fingerprint

    thrust
    chert
    normal fault
    fault plane
    sandstone
    thrust fault
    tuff
    mudstone
    shale
    excavation
    Permian
    Triassic
    rock

    Keywords

    • Chert unit
    • Mylonite
    • Semanggol formation
    • Thrust faults

    ASJC Scopus subject areas

    • Earth and Planetary Sciences (miscellaneous)

    Cite this

    Harun, Z., Jasin, B., Mohsin, N., & Azami, A. (2009). Thrust in the semanggol formation, kuala ketil, kedah. Bulletin of the Geological Society of Malaysia, (55), 61-66.

    Thrust in the semanggol formation, kuala ketil, kedah. / Harun, Zaiton; Jasin, Basir; Mohsin, Norshida; Azami, Azrelawati.

    In: Bulletin of the Geological Society of Malaysia, No. 55, 11.2009, p. 61-66.

    Research output: Contribution to journalArticle

    Harun, Z, Jasin, B, Mohsin, N & Azami, A 2009, 'Thrust in the semanggol formation, kuala ketil, kedah', Bulletin of the Geological Society of Malaysia, no. 55, pp. 61-66.
    Harun, Zaiton ; Jasin, Basir ; Mohsin, Norshida ; Azami, Azrelawati. / Thrust in the semanggol formation, kuala ketil, kedah. In: Bulletin of the Geological Society of Malaysia. 2009 ; No. 55. pp. 61-66.
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