This analysis of the general processes in the localized migration of lithium from the mantle according to the Romanyuk–Tkachev model as the ultimate mutual interaction between mantle plumes in Northeast Asia and in the Mongolia–Okhotsk slab through intermediate upper crustal magma chambers rests on the examination of mutual locations of intrusive bodies in the basement and in the sedimentary cover of the Siberian craton and of localization regions (as proved by drilling) containing commercial rare-metal brines with anomalously high concentrations of lithium in the natural reservoirs of the zone of retarded water exchange in the sedimentary cover of the major Angara–Lena artesian basin. It is shown how the region of brine occurrence that has anomalous lithium concentrations overlies in space the ring anomaly formed by the emplacement of a large pluton of the (hypothetical) Paleoproterozoic Baikal–Taimyr orogenic belt in the Early Proterozoic basement. On the other hand, a group of large deposits of lithium-bearing brines in the sedimentary cover (an analogue of an “ore field”) localizes in the band between the apical part of the giant Usolsky Sill to the west and the Baikal-Patomsky Folded Region (BPFR) foreland to the east. We are discussing the likely role played by large paleohydrothermal systems of magma bodies in the formation of lithium haloes, in the process of its subsequent transfer of hydrothermal fluids, and concentration in naturally occurring brines beneath thick deposits of Cambrian salts.
Vakhromeev et al. (Wed,) studied this question.