TITLE:
Rare Metal Deposits of East Kazakhstan: Geologic Position and Prognostic Criteria
AUTHORS:
Boris Dyachkov, Natalya Zimanovskaya, Indira Mataibayeva
KEYWORDS:
Rare Metals; Pegmatite; Albitite-Greisen Metasomatits; Kalba-Narym Belt; East Kazakhstan
JOURNAL NAME:
Open Journal of Geology,
Vol.3 No.7,
November
26,
2013
ABSTRACT: In the article the features of the formation and metallogeny of the geological structures of Great Altai (Rudny Altai, Kalba-Narym, Western Kalba and Jarma-Saur) which are included into the system of the Central Asian mobile belt are considered. The
characteristic of the main types of rare metal minefields of the Kalba-Narymsky
belt genetically connected with the Perm granitoid magmatism of the
post-conflict orogenny stage of activization is given. The rhythmical and
pulsation model of pegmatitovy ore formation in the conditions of the
half-closed magmatic system, reflecting the phasic development of mineral complexes
from graphic and oligoclase-microcline (barren) to microcline-albite and
albite-spodumene ore (Ta, Nb, Be, Li, Sn, etc.) is developed. On the basis of
the revealed criteria of ore formation recommendations about the direction of
the further researches are made.