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