Primary data on the impact from trap magmatism on the hydrogeochemistry of brines in the southwestern part of the Kureyka syncline (Siberian Platform)

Dmitry A. Novikov, Lyudmila M. Zhitova, Fedor F. Dultsev, Anatoliy V. Chernykh

Результат исследования: Научные публикации в периодических изданияхстатья по материалам конференции


The new data on the trap magmatism affecting the hydrogeochemistry of brines in southwestern Kureyka syncline in the west of the ancient Siberian platform are presented. The brines occurring in Paleozoic and Proterozoic deposits have salinity (total dissolved solids) varying broadly: from 30.2 to 469.6 g/dm3 for Na Cl, Na-Ca Cl, Ca-Na Cl, Ca-Mg Cl and Ca Cl types, among which the mixed types (Ca-Na Cl and Na-Ca Cl) are found prevailing. The activity of intrusive trap magmatism in the contact zone (with a strike length of up to 400 m) facilitated the disintegration of organic compounds in the free and water-dissolved form (CH 4 , CH 6 , CH 8 , iC 4 H 10 , nC 4 H 10 , iC 5 H 12 , nC 5 H 12 , C 6 H 14 , I, B, NH 4 ). The reaction of the intruding traps brines interaction significantly affected the initial composition of brines, showing a shift towards their saturation with iron, aluminum, silica and other components and thus bearing the evidence of possible salt-induced metal extraction from magmatic melts into an ore-bearing fluid.

Язык оригиналаанглийский
Номер статьи08017
Число страниц5
ЖурналE3S Web of Conferences
СостояниеОпубликовано - 7 июн 2019
Событие16th International Symposium on Water-Rock Interaction, WRI 2019 and 13th International Symposium on Applied Isotope Geochemistry, 1st IAGC International Conference - Tomsk, Российская Федерация
Продолжительность: 21 июл 201926 июл 2019