Open Access

Downloads

Download data is not yet available.

Abstract

This study aims to determine the distribution of present heat flow in the Phu Khanh basin from shallow water to deep water throughout the basin. The results from 42 present heat flow data points extracted from the global heat flow database by Goutorbe et al. (2011) indicated that there is an uneven distribution of the present heat flow in the research area. Heat flow accumulation in uplift structures in the north-west direction (78 - 86 mW/m2) of the Phu Khanh basin is usually higher than in trenches or deep depressions in the south-east direction of the basin (58 - 72 mW/m2). This is due to the sediment layer up to more than 10,000m thick in the deep water of the Phu Khanh basin. As a result, heat flow values in deep water are significantly lower than in shallow water of the Phu Khanh basin. The thick sediment layer acts as an insulator that prevents heat flow from escaping to the surface. The mean values of present heat flow calculated from wells TH - 1X and CMT - 1X are 85.60 mW/m2 and 83.20 mW/m2 respectively. These values are relatively consistent with the predicted results from Kriging 42 data points extracted from the global heat flow data set in the study of Goutorbe et al. (2011). The high present heat flow values can be explained by the fact that the Phu Khanh basin is still experiencing thermal subsidence because of its relatively young age (approximately 35 million years). This basin has not yet regained its thermal equilibrium value after the Early Oligocene - Miocene extension stage, so the present heat flow value is still high in this basin.



Author's Affiliation
  • Huy Xuan Nguyen

    Email I'd for correspondance: nxhuy@hcmut.edu.vn
    Google Scholar Pubmed

  • Thu-Trang Thi Nguyen

    Google Scholar Pubmed

Article Details

 Copyright Info

Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Nguyen, H., & Nguyen, T.-T. (2021). Distribution of Present Heat Flow in the Phu Khanh Basin, Offshore Vietnam. Science & Technology Development Journal - Engineering and Technology, 4(SI3), SI184-SI192. https://doi.org/https://doi.org/10.32508/stdjet.v4iSI3.851

 Cited by



Article level Metrics by Paperbuzz/Impactstory
Article level Metrics by Altmetrics

 Article Statistics
HTML = 0 times
PDF   = 0 times
Total   = 0 times