Abstract
[Objective] The eastern section of China, Mongolia and Russia has a complex geological evolution history and strong mineralization. Strengthening the study of cross-border regional mineralization, especially the summary of region-wide mineralization regularity, is of great significance for improving the level of regional basic geological research and prospecting and exploration. [Methods] By collecting various geological datas, the metallogenic geological characteristics, resource endowment, temporal and spatial distribution of deposits, metallogenic background and so on are sorted out. [Results] In the study area, 10 super-large deposits, 33 large deposits, 55 medium deposits and numerous small deposits (and occurrences) have been proved or discovered. Generally, they can be divided into the deposits related to the Precambrian tectonic system, the deposits related to the Paleo-Asian Ocean tectonic system, the deposits related to the Mongolia-Okhotsk tectonic system, and the deposits related to the superposition Mongolia-Okhotsk tectonic system and the Paleo-Pacific tectonic system. [Conclusions] The spatial and temporal rules of regional deposits are obvious. The most important deposits formed in various historical periods include:Archean Fe deposits distribute in the West Aldan -Sutam area; The Paleoproterozoic Cu, Fe, Ti deposits distribute in the Udokan-DyosLeglier area and the Neoproterozoic Pb, Zn deposits distribute in the Baikal-Muya tectonic zone; The Cambrian-Silurian Fe, Zn, Ti deposits distribute in the Yenisey-Transbaikalian tectonic belt; The Carboniferous Au deposits distribute in the Baikal-Patom tectonic zone; The Triassic Cu and Mo deposits in the Orhon-Selenge region and the Late Permian-Early Triassic Fe deposits in the Angara-Ilim region; The Middle Jurassic to Cretaceous Au, Pb, Zn, W, Mo deposits distribute in the Mongolia-Okhotsk tectonic belt and its surrounding areas.
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