Climate-driven cyclicity in the Quaternary of the Gulf of Thailand

Zhiqiang Feng, T Astin, Patrick William Michael Corbett, Anthony Robin Westerman

Research output: Contribution to journalArticle

Abstract

The Quaternary in the Gulf of Thailand shows well-developed cyclicity. Eight parasequences have been identified using high-resolution 2-D seismic (boomer) profiles and engineering boreholes. Sediments change from marine mud to floodplain deposits from the bottom to the top of a typical parasequence. Incised fluvial systems and soil crust developed on top of each parasequence, which may indicate a significant subaerial exposure period after construction of each parasequence. Each parasequence represents a cycle of marine transgression and regression. The thickness of these parasequences varies from 6 to 22 m, with an average about 13 m. By correlating to the Quaternary oxygen isotope curve, the eight cycles are dated 730 to 10 ka, with an average 91 ka of periodicity, which suggests that these cycles should be caused by climate-driven sea level oscillations controlled by eccentricity cycles discovered by Milankovitch. These types of cycles should exist in earlier geological history and have global effect.
Original languageEnglish
Pages (from-to)20-25
Number of pages6
JournalEarth Science Frontiers
Volume15
Issue number2
DOIs
Publication statusPublished - Mar 2008

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parasequence
cyclicity
climate
soil crust
subaerial exposure
eccentricity
transgression
periodicity
oxygen isotope
gulf
floodplain
mud
borehole
oscillation
sea level
engineering
history
sediment

Cite this

Feng, Zhiqiang ; Astin, T ; Corbett, Patrick William Michael ; Westerman, Anthony Robin. / Climate-driven cyclicity in the Quaternary of the Gulf of Thailand. In: Earth Science Frontiers. 2008 ; Vol. 15, No. 2. pp. 20-25.
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Climate-driven cyclicity in the Quaternary of the Gulf of Thailand. / Feng, Zhiqiang; Astin, T; Corbett, Patrick William Michael; Westerman, Anthony Robin.

In: Earth Science Frontiers, Vol. 15, No. 2, 03.2008, p. 20-25.

Research output: Contribution to journalArticle

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