Penecontemporaneous deformation in the Nyalau Formation (Oligo-Miocene), Central Sarawak

Abstract: In the Nyalau Formation (Late Oligocene to Early Miocene in age) exposed near Tg. Similajau and Bintulu areas, structural features indicate that penecotemporaneous deformation is common. These features include (1) “disharmonic” thrusts and associated folding within shaly intervals, (2) d...

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Main Authors: MAZLAN MADON, Mazlan, ABDUL HADI ABD RAHMAN, Abdul Hadi
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.6078 /
Published: Geological Society of Malaysia 2007
Subjects:
QE Geology
Online Access: http://eprints.utp.edu.my/6078/1/Mazlan_Nyalau_Paper_2007.pdf
http://eprints.utp.edu.my/6078/
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spelling utp-eprints.60782017-03-20T02:30:06Z Penecontemporaneous deformation in the Nyalau Formation (Oligo-Miocene), Central Sarawak MAZLAN MADON, Mazlan ABDUL HADI ABD RAHMAN, Abdul Hadi QE Geology Abstract: In the Nyalau Formation (Late Oligocene to Early Miocene in age) exposed near Tg. Similajau and Bintulu areas, structural features indicate that penecotemporaneous deformation is common. These features include (1) “disharmonic” thrusts and associated folding within shaly intervals, (2) detached normal and reverse faults within mud-dominated intervals, (3) subtle stratal termination and onlap patterns associated with faulting, folding and (probably subaquaeous) erosion of the sedimentary layers, (4) slump and load structures within lower shoreface to offshore-transition successions. These characteristics may be a common feature in deforming foreland basins, and indicate the importance of tectonic over eustatic controls on sedimentation and sequence development in the Tertiary NW Borneo basins. Geological Society of Malaysia 2007 Article PeerReviewed application/pdf http://eprints.utp.edu.my/6078/1/Mazlan_Nyalau_Paper_2007.pdf MAZLAN MADON, Mazlan and ABDUL HADI ABD RAHMAN, Abdul Hadi (2007) Penecontemporaneous deformation in the Nyalau Formation (Oligo-Miocene), Central Sarawak. Geological Society of Malaysia, Bulletin 53, June 2007, pp. 67 – 73, Bullet . pp. 67-73. http://eprints.utp.edu.my/6078/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
topic QE Geology
spellingShingle QE Geology
MAZLAN MADON, Mazlan
ABDUL HADI ABD RAHMAN, Abdul Hadi
Penecontemporaneous deformation in the Nyalau Formation (Oligo-Miocene), Central Sarawak
description Abstract: In the Nyalau Formation (Late Oligocene to Early Miocene in age) exposed near Tg. Similajau and Bintulu areas, structural features indicate that penecotemporaneous deformation is common. These features include (1) “disharmonic” thrusts and associated folding within shaly intervals, (2) detached normal and reverse faults within mud-dominated intervals, (3) subtle stratal termination and onlap patterns associated with faulting, folding and (probably subaquaeous) erosion of the sedimentary layers, (4) slump and load structures within lower shoreface to offshore-transition successions. These characteristics may be a common feature in deforming foreland basins, and indicate the importance of tectonic over eustatic controls on sedimentation and sequence development in the Tertiary NW Borneo basins.
format Article
author MAZLAN MADON, Mazlan
ABDUL HADI ABD RAHMAN, Abdul Hadi
author_sort MAZLAN MADON, Mazlan
title Penecontemporaneous deformation in the Nyalau Formation (Oligo-Miocene), Central Sarawak
title_short Penecontemporaneous deformation in the Nyalau Formation (Oligo-Miocene), Central Sarawak
title_full Penecontemporaneous deformation in the Nyalau Formation (Oligo-Miocene), Central Sarawak
title_fullStr Penecontemporaneous deformation in the Nyalau Formation (Oligo-Miocene), Central Sarawak
title_full_unstemmed Penecontemporaneous deformation in the Nyalau Formation (Oligo-Miocene), Central Sarawak
title_sort penecontemporaneous deformation in the nyalau formation (oligo-miocene), central sarawak
publisher Geological Society of Malaysia
publishDate 2007
url http://eprints.utp.edu.my/6078/1/Mazlan_Nyalau_Paper_2007.pdf
http://eprints.utp.edu.my/6078/
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score 11.62408

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