Rapid Pliocene uplift of Timor

Nguyen, N., Duffy, B., Shulmeister, J. and Quigley, M. (2013) Rapid Pliocene uplift of Timor. Geology, 41 2: 179-182. doi:10.1130/G33420.1


Author Nguyen, N.
Duffy, B.
Shulmeister, J.
Quigley, M.
Title Rapid Pliocene uplift of Timor
Journal name Geology   Check publisher's open access policy
ISSN 0091-7613
1943-2682
Publication date 2013-02-01
Year available 2012
Sub-type Article (original research)
DOI 10.1130/G33420.1
Volume 41
Issue 2
Start page 179
End page 182
Total pages 4
Place of publication Boulder, CO, United States
Publisher Geological Society of America
Collection year 2013
Language eng
Formatted abstract
Palynology of exhumed Pliocene marine turbidites and marl beds on the island of Timor provide insights into crustal deformation in the Indonesian region. Between ca. 4.5 and ca. 3 Ma, palynomorphs were sourced primarily from Australia and New Guinea, with increasing swamp and mangrove elements sourced from an emerging proto-Timor. Following ca. 3.1 Ma, pollen and charcoal evidence track the rapid uplift of Timor to a high island, with the progressive appearance of montane and dry, lee-side floristic elements. Early-to mid-Pliocene uplift rates of 0.5-0.6 mm yr-1 increased to 2-5 mm yr-1 in the latest Pliocene. The rapid topographic development of Timor-Leste initiated earlier but followed a pattern similar to that of more westerly localities in the Timor sector of the Banda Arc. Timor's emergence from the marine environment is closely correlated with the timing of closure of the Indonesian seaway to deep-dwelling foraminfera.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online: 13 November 2012.

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Geography, Planning and Environmental Management Publications
Official 2013 Collection
 
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