Cover Image

A deep marine origin for the Tajau Sandstone Member of the Kudat Formation, Kudat Peninsula, Sabah: Evidence from facies analysis and ichnology

There have been many disagreements regarding the depositional environment of the Oligocene Tajau Sandstone Member of the Kudat Formation, Northern Sabah. We present here, the first detailed sedimentary facies analysis for the Tajau Sandstone Member, exposed on the Kudat Peninsula. The identified fac...

Full description

Saved in:
Bibliographic Details
Main Authors: Mansor, Hafzan Eva, Amir Hassan, Meor Hakif, Asis, Junaidi
Format: Article
Published: Penerbit Universiti Kebangsaan Malaysia 2021
Subjects:
GB Physical geography
QE Geology
Online Access:http://eprints.um.edu.my/27154/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.um.eprints.27154
record_format eprints
spelling my.um.eprints.271542022-04-12T06:40:37Z http://eprints.um.edu.my/27154/ A deep marine origin for the Tajau Sandstone Member of the Kudat Formation, Kudat Peninsula, Sabah: Evidence from facies analysis and ichnology Mansor, Hafzan Eva Amir Hassan, Meor Hakif Asis, Junaidi GB Physical geography QE Geology There have been many disagreements regarding the depositional environment of the Oligocene Tajau Sandstone Member of the Kudat Formation, Northern Sabah. We present here, the first detailed sedimentary facies analysis for the Tajau Sandstone Member, exposed on the Kudat Peninsula. The identified facies are interpreted as the deposits of subaqueous sediment density flows, which are common processes in deep marine depositional settings. These include debrites, hyperconcentrated density flow deposits, and turbidites. Several of the turbidite facies display evidence for hydraulic jumps, which are also common processes in deepwater settings and probably indicate changes in slope topography or loss of flow confinement. Trace fossils characteristic of the Nereites ichnofacies are also diagnostic of a deep marine depositional environment. Facies previously identified by previous workers as hummocky crossstratification in the Tajau Sandstone Member, which was used to support a shallow marine interpretation, is better interpreted as supercritical antidunes developed in high density turbidites, based on the coarse-grained texture, spaced layering and association with other subaqeuoues density flow deposits. Penerbit Universiti Kebangsaan Malaysia 2021-02 Article PeerReviewed Mansor, Hafzan Eva and Amir Hassan, Meor Hakif and Asis, Junaidi (2021) A deep marine origin for the Tajau Sandstone Member of the Kudat Formation, Kudat Peninsula, Sabah: Evidence from facies analysis and ichnology. Sains Malaysiana, 50 (2). pp. 301-313. ISSN 0126-6039, DOI https://doi.org/10.17576/jsm-2021-5002-03 <https://doi.org/10.17576/jsm-2021-5002-03>. 10.17576/jsm-2021-5002-03
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 GB Physical geography
QE Geology
spellingShingle GB Physical geography
QE Geology
Mansor, Hafzan Eva
Amir Hassan, Meor Hakif
Asis, Junaidi
A deep marine origin for the Tajau Sandstone Member of the Kudat Formation, Kudat Peninsula, Sabah: Evidence from facies analysis and ichnology
description There have been many disagreements regarding the depositional environment of the Oligocene Tajau Sandstone Member of the Kudat Formation, Northern Sabah. We present here, the first detailed sedimentary facies analysis for the Tajau Sandstone Member, exposed on the Kudat Peninsula. The identified facies are interpreted as the deposits of subaqueous sediment density flows, which are common processes in deep marine depositional settings. These include debrites, hyperconcentrated density flow deposits, and turbidites. Several of the turbidite facies display evidence for hydraulic jumps, which are also common processes in deepwater settings and probably indicate changes in slope topography or loss of flow confinement. Trace fossils characteristic of the Nereites ichnofacies are also diagnostic of a deep marine depositional environment. Facies previously identified by previous workers as hummocky crossstratification in the Tajau Sandstone Member, which was used to support a shallow marine interpretation, is better interpreted as supercritical antidunes developed in high density turbidites, based on the coarse-grained texture, spaced layering and association with other subaqeuoues density flow deposits.
format Article
author Mansor, Hafzan Eva
Amir Hassan, Meor Hakif
Asis, Junaidi
author_facet Mansor, Hafzan Eva
Amir Hassan, Meor Hakif
Asis, Junaidi
author_sort Mansor, Hafzan Eva
title A deep marine origin for the Tajau Sandstone Member of the Kudat Formation, Kudat Peninsula, Sabah: Evidence from facies analysis and ichnology
title_short A deep marine origin for the Tajau Sandstone Member of the Kudat Formation, Kudat Peninsula, Sabah: Evidence from facies analysis and ichnology
title_full A deep marine origin for the Tajau Sandstone Member of the Kudat Formation, Kudat Peninsula, Sabah: Evidence from facies analysis and ichnology
title_fullStr A deep marine origin for the Tajau Sandstone Member of the Kudat Formation, Kudat Peninsula, Sabah: Evidence from facies analysis and ichnology
title_full_unstemmed A deep marine origin for the Tajau Sandstone Member of the Kudat Formation, Kudat Peninsula, Sabah: Evidence from facies analysis and ichnology
title_sort deep marine origin for the tajau sandstone member of the kudat formation, kudat peninsula, sabah: evidence from facies analysis and ichnology
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2021
url http://eprints.um.edu.my/27154/
_version_ 1735409506344501248
score 13.211869

Similar Items