Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/97430
Title: Stratigraphic evidence for an early Holocene earthquake in Aceh, Indonesia
Authors: Grand Pre, Candace A.
Horton, Benjamin P.
Kelsey, Harvey M.
Rubin, Charles M.
Hawkes, Andrea D.
Daryono, Mudrik R.
Rosenberg, Gary.
Culver, Stephen J.
Issue Date: 2012
Source: Grand Pre, C. A., Horton, B. P., Kelsey, H. M., Rubin, C. M., Hawkes, A. D., Daryono, M. R., et al. (2012). Stratigraphic evidence for an early Holocene earthquake in Aceh, Indonesia. Quaternary Science Reviews, 54, 142-151.
Series/Report no.: Quaternary science reviews
Abstract: The Holocene stratigraphy of the coastal plain of the Aceh Province of Sumatra contains 6 m of sediment with three regionally consistent buried soils above pre-Quaternary bedrock or pre-Holocene unconsolidated sediment. Litho-, bio-, and chronostratigraphic analyses of the lower buried soil reveals a rapid change in relative sea-level caused by coseismic subsidence during an early Holocene megathrust earthquake. Evidence for paleoseismic subsidence is preserved as a buried mangrove soil, dominated by a pollen assemblage of Rhizophora and/or Bruguiera/Ceriops taxa. The soil is abruptly overlain by a thin tsunami sand. The sand contains mixed pollen and abraded foraminiferal assemblages of both offshore and onshore environments. The tsunami sand grades upward into mud that contains both well-preserved foraminifera of intertidal origin and individuals of the gastropod Cerithidea cingulata. Radiocarbon ages from the pre- and post-seismic sedimentary sequences constrain the paleoearthquake to 6500–7000 cal. yrs. BP. We use micro-and macrofossil data to determine the local paleoenvironment before and after the earthquake. We estimate coseismic subsidence to be 0.45 ± 0.30 m, which is comparable to the 0.6 m of subsidence observed during the 2004 Aceh–Andaman earthquake on Aceh’s west coast.
URI: https://hdl.handle.net/10356/97430
http://hdl.handle.net/10220/10561
ISSN: 0277-3791
DOI: 10.1016/j.quascirev.2012.03.011
Schools: School of Physical and Mathematical Sciences 
Research Centres: Earth Observatory of Singapore 
Rights: © 2012 Elsevier Ltd.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EOS Journal Articles
SPMS Journal Articles

SCOPUSTM   
Citations 10

30
Updated on Mar 12, 2024

Web of ScienceTM
Citations 10

28
Updated on Oct 29, 2023

Page view(s) 5

931
Updated on Mar 18, 2024

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.