Research output: Contribution to journal › Article › peer-review
Hydrogeochemical Features of Thermal Waters of South Trungbo (Central Vietnam). / Novikov, D. A.; Van Tuyen, Doan; Phan, Thi Kim Van et al.
In: Russian Journal of Pacific Geology, Vol. 12, No. 1, 01.01.2018, p. 63-79.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Hydrogeochemical Features of Thermal Waters of South Trungbo (Central Vietnam)
AU - Novikov, D. A.
AU - Van Tuyen, Doan
AU - Phan, Thi Kim Van
AU - Kharitonova, N. A.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - The results of studying the features of the hydrogeological structure and chemical and isotope composition of thermal waters from the central part of Vietnam that are characterized by intense manifestations of intrusive magmatism are presented. It is established that low–and high–thermal waters with temperature varying within 30–85°C are developed in the area under study. The value of total mineralization of the hydrotherms ranges from 0.05 to 10.05 g/dm3. It is assumed that the circulation of thermal waters that are different in temperature and chemical composition occurs at two levels. The regular change of the hydrotherm composition in the direction from mineralized chloride sodium, including with increased Ca content, to fresh sodium bicarbonate is revealed. The ratio of δ18O–δ2H isotopes indicates that the water component is based on meteoric water. In the coastal areas, there is an isotope shift towards the ocean waters, which is also confirmed by the hydrogeochemical data. The key factors for forming the chemical composition of the thermal waters in South Trungbo are their genetic type, the interaction processes in the “water–rock–gas–organic substance” system, and their equilibrium–nonequilibrium state.
AB - The results of studying the features of the hydrogeological structure and chemical and isotope composition of thermal waters from the central part of Vietnam that are characterized by intense manifestations of intrusive magmatism are presented. It is established that low–and high–thermal waters with temperature varying within 30–85°C are developed in the area under study. The value of total mineralization of the hydrotherms ranges from 0.05 to 10.05 g/dm3. It is assumed that the circulation of thermal waters that are different in temperature and chemical composition occurs at two levels. The regular change of the hydrotherm composition in the direction from mineralized chloride sodium, including with increased Ca content, to fresh sodium bicarbonate is revealed. The ratio of δ18O–δ2H isotopes indicates that the water component is based on meteoric water. In the coastal areas, there is an isotope shift towards the ocean waters, which is also confirmed by the hydrogeochemical data. The key factors for forming the chemical composition of the thermal waters in South Trungbo are their genetic type, the interaction processes in the “water–rock–gas–organic substance” system, and their equilibrium–nonequilibrium state.
KW - genesis
KW - hydrogeochemistry
KW - South Trungbo
KW - thermal waters
KW - Vietnam
KW - BAIKAL RIFT-ZONE
KW - KONTUM MASSIF
KW - INDO-CHINA
UR - http://www.scopus.com/inward/record.url?scp=85044326949&partnerID=8YFLogxK
U2 - 10.1134/S1819714018010050
DO - 10.1134/S1819714018010050
M3 - Article
AN - SCOPUS:85044326949
VL - 12
SP - 63
EP - 79
JO - Russian Journal of Pacific Geology
JF - Russian Journal of Pacific Geology
SN - 1819-7140
IS - 1
ER -
ID: 12178028