Tectono-thermal modeling of the Yinggehai Basin, South China Sea

L. He, L. Xiong, J. Wang, J. Yang, W. Dong

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Based on the observed data, the average value of surface heat flow in the Yinggehai Basin is calculated and it turns out to be 84.1 mW/m2. The thermal evolution of the basin since the Cenozoic era has been attempted by tectono-thermal modeling. Three-phase extension made the basin become hotter and hotter, reaching its climax in paleo-temperature history since 5.2 Ma. And nowadays, the basin is in the heat flow decreasing period. During the Cenozoic era, the basement heat flow remained at 50-70 mW/m2 all the time. This is related to the degree of each extension phase, stretching rate mode and also the limited basin scale. Modeling results also show that, the surface heat flow is controlled mainly by the basement heat flow, and less than 20% comes from radiogenic heat production in the sediments of the basin.

Original languageEnglish
Pages (from-to)7-13
Number of pages7
JournalScience in China, Series D: Earth Sciences
Volume44
Issue number1
Publication statusPublished - 2001
Externally publishedYes

Keywords

  • South China Sea
  • Tectono-thermal modeling
  • The Yinggehai Basin

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