Stratigraphic succession and depositional framework of the Sandakan Formation, Sabah

The Sandakan Formation of the Segama Group is exposed across the Sandakan Peninsular in eastern Sabah. This Upper Miocene part of the Segama Group unconformably overlies the Garinono Formation and is conformably overlain by the Bongaya Formation. This formation was investigated with detailed logging...

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Main Authors:	Khor, Wei Chung, Chow, Weng Sum, Abd. Hadi A. Rahman
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2015
Online Access:	http://journalarticle.ukm.my/8976/ http://journalarticle.ukm.my/8976/ http://journalarticle.ukm.my/8976/1/03_Khor_Wei_Chung.pdf

id	ukm-8976
recordtype	eprints
spelling	ukm-89762016-12-14T06:48:36Z http://journalarticle.ukm.my/8976/ Stratigraphic succession and depositional framework of the Sandakan Formation, Sabah Khor, Wei Chung Chow, Weng Sum Abd. Hadi A. Rahman, The Sandakan Formation of the Segama Group is exposed across the Sandakan Peninsular in eastern Sabah. This Upper Miocene part of the Segama Group unconformably overlies the Garinono Formation and is conformably overlain by the Bongaya Formation. This formation was investigated with detailed logging of outcrops and microfossils analysis in order to map the depositional facies and sedimentary environment. This study showed the presence of seven lithofacies: Thick amalgamated sandstone; thin, lenticular interbedded HCS sandstones and mudstone; laminated mudstone with Rhizophora; trough cross-bedded sandstone; laminated mudstone; strip mudstone with thin sandstone and siltstone; and interbedded HCS sandstone and mudstone. Based on the presence of Rhizophora, Brownlowia, Florchuetia sp., Polypodium, Stenochleana palustris, Ascidian spicule low angle cross bedding, very fine grained sandstone, thin alternations of very fine sandstone, silt and clay layers showing cyclicity (muddy rhythemites), rocks in the Sandakan Formation are interpreted as mangal estuary and open marine facies. Three facies associations could be deduced from the seven lithofacies: Gradual coarsening upwards shoreface; abrupt change facies and prograding estuary facies association. Universiti Kebangsaan Malaysia 2015-07 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/8976/1/03_Khor_Wei_Chung.pdf Khor, Wei Chung and Chow, Weng Sum and Abd. Hadi A. Rahman, (2015) Stratigraphic succession and depositional framework of the Sandakan Formation, Sabah. Sains Malaysiana, 44 (7). pp. 931-940. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid44bil7_2015/KandunganJilid44Bil7_2015.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	The Sandakan Formation of the Segama Group is exposed across the Sandakan Peninsular in eastern Sabah. This Upper Miocene part of the Segama Group unconformably overlies the Garinono Formation and is conformably overlain by the Bongaya Formation. This formation was investigated with detailed logging of outcrops and microfossils analysis in order to map the depositional facies and sedimentary environment. This study showed the presence of seven lithofacies: Thick amalgamated sandstone; thin, lenticular interbedded HCS sandstones and mudstone; laminated mudstone with Rhizophora; trough cross-bedded sandstone; laminated mudstone; strip mudstone with thin sandstone and siltstone; and interbedded HCS sandstone and mudstone. Based on the presence of Rhizophora, Brownlowia, Florchuetia sp., Polypodium, Stenochleana palustris, Ascidian spicule low angle cross bedding, very fine grained sandstone, thin alternations of very fine sandstone, silt and clay layers showing cyclicity (muddy rhythemites), rocks in the Sandakan Formation are interpreted as mangal estuary and open marine facies. Three facies associations could be deduced from the seven lithofacies: Gradual coarsening upwards shoreface; abrupt change facies and prograding estuary facies association.
format	Article
author	Khor, Wei Chung Chow, Weng Sum Abd. Hadi A. Rahman,
spellingShingle	Khor, Wei Chung Chow, Weng Sum Abd. Hadi A. Rahman, Stratigraphic succession and depositional framework of the Sandakan Formation, Sabah
author_facet	Khor, Wei Chung Chow, Weng Sum Abd. Hadi A. Rahman,
author_sort	Khor, Wei Chung
title	Stratigraphic succession and depositional framework of the Sandakan Formation, Sabah
title_short	Stratigraphic succession and depositional framework of the Sandakan Formation, Sabah
title_full	Stratigraphic succession and depositional framework of the Sandakan Formation, Sabah
title_fullStr	Stratigraphic succession and depositional framework of the Sandakan Formation, Sabah
title_full_unstemmed	Stratigraphic succession and depositional framework of the Sandakan Formation, Sabah
title_sort	stratigraphic succession and depositional framework of the sandakan formation, sabah
publisher	Universiti Kebangsaan Malaysia
publishDate	2015
url	http://journalarticle.ukm.my/8976/ http://journalarticle.ukm.my/8976/ http://journalarticle.ukm.my/8976/1/03_Khor_Wei_Chung.pdf
first_indexed	2023-09-18T19:53:38Z
last_indexed	2023-09-18T19:53:38Z
_version_	1777406383942008832

Stratigraphic succession and depositional framework of the Sandakan Formation, Sabah

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