Titlebook: World-Class Mineral Deposits of Northeastern Transbaikalia, Siberia, Russia; Bronislav Gongalsky,Nadezhda Krivolutskaya Book 2019 Springer

HERE

The Nb-Ta-Zr-REE-Y Katugin Deposit, REE-fluorite, monazite, and cryolite are the major minerals. Fergusonite, ilmenite, and ilmenorutile are widespread in the metasomatized country rocks. It was suggested that deposit was formed as a result of metasomatism, but nowadays there is an opinion on its magmatic origin.

Rustproof

Regional Geology of the Kodar-Udokan Mineral District Craton, sandwiched between the Phanerozoic Baikal-Muya and Mongol-Okhotsk mobile belts. It comprises many deposits of Cu, V, Fe, Ag, Ti, V, Ta-Nb, Zr, and REE-Y of different genetic types in sedimentary and magmatic rocks. The sandstones of the Udokan Supergroup, the gabbro rocks of the Chiney Intr

破布

The Cu-Ag-Fe Udokan Depositddition to the giant Udokan deposit, the basin hosts many smaller satellite deposits and occurrences. The Paleoproterozoic Sakukan Formation, hosting cupriferous sandstone units, and the overlaying Naminga Formation are principal hosting stratigraphic units of the Udokan deposit, forming a Naminga b

Frenetic

Satellite Sandstone-Hosted Cu-Ag-Fe Deposits in Rocks of the Udokan Supergroupt formations at different stratigraphic levels. They differ strongly in mineral and chemical composition from the Udokan ores, often displaying much higher silver grades. The hypogene copper mineralization in these deposits consists of chalcopyrite, bornite, and, to a much lesser extent, chalcocite.

optic-nerve

The Chiney Layered Pluton: Structure and Mineral CompositionE-Cu-Ni. The ores related to the Chiney intrusion differ from the ores of other Cu-Ni deposits in their high Cu/Ni ratio (~100). Its age is estimated as 1880–1850 Ma. It consists of the Western, Central, Eastern, and Southeastern blocks. Four main groups of intrusive rocks were recognized within the

少量

Chemistry and General Typification of Intrusive RocksAll rocks, except norite, are enriched in Fe and Ti. The MgO and TiO. variations demonstrate a rhythmic structure of the Chiney pluton. Distribution of rare elements in rocks is similar to the distribution in typical crustal rocks with negative Ta-Nb and positive Pb anomalies. Techniques of geochemi

aerial

讓空氣進入

Indurate

Nomadic