Initial research results on the possibility of using metacarbonate formations in Tan Lap - Cho Don - Bac Kan province as decorative stone

Abstract

Based on the study of the characteristics of materials, structure, textures and physical properties of metacarbonate rocks at Tan Lap area, Cho Don district, Bac Kan province, it is possible to provide the initial possibility of using these rocks as decoration stones. Methods applied in the study include field investigations and sampling; sample analysis for thin-section microscopes, for the chemistry of sicilate and physical properties. The results indicate that metacarbonate rocks consist mainly of marbles which are allocated within the 3rd unit of the upper part of Mia Le formation (D1ml2). The rocks are thick layered structure, granoblastic texture, fine- to medium-grained marbles. Cao is the predominate chemical composition while heavy metals and radioactive elements are of very low contents. The rocks are pure white, exhibiting high color fastness and gloss. The outcomes of this study could serve as a scientific basis for guiding in exploration, exploitation, and utilization of mineral resources (marble) in the Tan Lap area particularly as well as in Vietnam's territory.