Skip to Main Content
GEOREF RECORD

Modern benthic Foraminifera in subtidal waters of Johor; implications for Holocene sea-level change on the East Coast of peninsular Malaysia

Fatin Izzati Minhat, Behara Satyanarayana, Mohd-Lokman Husain and Vijayan V. V. Rajan
Modern benthic Foraminifera in subtidal waters of Johor; implications for Holocene sea-level change on the East Coast of peninsular Malaysia
Journal of Foraminiferal Research (October 2016) 46 (4): 347-357

Abstract

Far-field regions are locations away from major glaciation centres and can provide the best possible estimates on eustatic sea-level changes. As a far-field region of stable Sundaland, Malaysia is an ideal location for studying and predicting Holocene sea-level changes. However, modern analogues for such investigations are limited for many far-fields, including Malaysia. We examined the ecological distributions of modern subtidal benthic foraminifera on the east coast of Johor, Peninsular Malaysia. The faunal composition of surface sediment samples (279 species) was dominated by calcareous-hyaline taxa (74.4+ or -10.2%), followed by agglutinated (13.5+ or -7.6%) and calcareous-porcelaneous (12.1+ or -5.2%) taxa, with the co-dominance of Asterorotalia pulchella (synonym: Asterorotalia tripinosa), Discorbinella bertheloti, Pseudorotalia indopacifica, Ammonia sp.1 and Cavarotalia annectens Canonical Correspondence Analysis indicated that both water depth and sediment texture influenced the distributions of subtidal benthic foraminifera. Agglutinated species such as Textularia pseudosolita, T. agglutinans, Bigenerina nodosaria and T. foliacea were found in middle-shelf environments (depth >20 m), while calcareous genera such as Elphidium, Pararotalia and Ammonia were found in the inner-shelf (depth <20 m). Although the Weighted Averaging regression transfer function based on depth revealed modest performance of foraminifera (r (super 2) (sub jack) = 0.40) (for which the other factors such as salinity and wave transport could be responsible), the distributions of subtidal foraminifera are clearly associated with water depth. At Johor, currently observed shifts in subtidal foraminiferal species with depth, which are linked to existing sediment types, can serve as base-line data for sea-level reconstruction on the east coast of Peninsular Malaysia.


ISSN: 0096-1191
EISSN: 1943-264X
Coden: JFARAH
Serial Title: Journal of Foraminiferal Research
Serial Volume: 46
Serial Issue: 4
Title: Modern benthic Foraminifera in subtidal waters of Johor; implications for Holocene sea-level change on the East Coast of peninsular Malaysia
Affiliation: Universiti Malaysia Terengganu, Institute of Oceanography and Environment, Kuala Terengganu, Malaysia
Pages: 347-357
Published: 201610
Text Language: English
Publisher: Cushman Foundation for Foraminiferal Research, Ithaca, NY, United States
References: 74
Accession Number: 2016-096700
Categories: Quaternary geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 5 tables, sketch map
N01°19'60" - N01°34'60", E104°10'00" - E104°19'60"
Secondary Affiliation: Mineral and Geosciences Department of Malaysia, MYS, Malaysia
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Cushman Foundation for Foraminiferal Research. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201647
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal