Factors controls on weathering in the Ba River drainage basin, South Central Vietnam: Clay mineralogical investigations

  • Affiliations:

    Khoa Khoa học và Kỹ thuật Địa chất, Trường Đại học Mỏ - Địa chất, Việt Nam

  • *Corresponding:
    This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Received: 31st-July-2019
  • Revised: 9th-Oct-2019
  • Accepted: 31st-Oct-2019
  • Online: 31st-Oct-2019
Pages: 12 - 14
Views: 2974
Downloads: 1831
Rating: 5.0, Total rating: 182
Yours rating

Abstract:

Clay minerals of Miocene sedimentary rock and river sediment samples were collected from the Ba River basin in Southern Central Vietnam to evaluate controlling factor on weathering in Miocene and the present time. The analysis results display that Miocene andesitic sedimentary rocks contain high smectite (average 72%) with moderate kaolinite (24%), while Miocene felsic sedimentary rocks consist of high kaolinite (65%) with moderate smectite (25%). River sediments are represented by moderate smectite (43%) and kaolinite (37%). Based on the formation and typical distribution of clay minerals in the Ba River basin can be caused by the occurrence of felsic intrusive rocks and eruptive rocks along with the weak tectonics and tropical East Asia monsoon climate during the Miocene and in the present time. This indicates that lithological composition of parent rocks and East Asian monsoon conditions are significant roles in controlling weathering process, while tectonics play only a subordinate role in the Ba River basin.

How to Cite
Pham, S.Nhu, Khuong, H.The, Ta, T.Thi, Phan, H.Thanh Thi, Do, A.Manh and Bui, T.Thanh 2019. Factors controls on weathering in the Ba River drainage basin, South Central Vietnam: Clay mineralogical investigations (in Vietnamese). Journal of Mining and Earth Sciences. 60, 5 (Oct, 2019), 12-14. DOI:https://doi.org/10.46326/JMES.2019.60(5).1032.