Open AccessStream Sediment Geochemical Survey on Metamorphic Rock, Kolaka, Southeast Sulawesi, Indonesia.
Author(s) -
Adi Tonggiroh
Publication year - 2020
Publication title -
journal of geoscience, engineering, environment and technology
Language(s) - English
Resource type - Journals
eISSN - 2541-5794
pISSN - 2503-216X
DOI - 10.25299/jgeet.2020.5.4.5433
Subject(s) - geology , geochemistry , sphalerite , chlorite , metamorphic rock , sericite , pyrite , epidote , mineralization (soil science) , quartz , muscovite , lithology , sediment , weathering , ultramafic rock , mineralogy , geomorphology , soil science , paleontology , soil water
The aim of this research is to conduct surface geological mapping to determine the lithologies that underlies the linear geochemical characteristics of Ag, As, Cd, Co,Cu, Fe, Mn, Ni, Pb, Zn by using stream sediment data. Furthermore, to know the distribution of these elements lithologically in the area. This study uses 10 sediment stream samples of 80 mesh up to 100 mesh which then chemical elements are analyzed with AAS. Alteration mineralization occcurs in quartz chlorite geneiss: quartz, epidote, chlorite, muscovite, sericite, calcite, monmorillonite, pyrite, sphalerite, bornite and chalcopyrite. Based on linearity analysis elements are grouped into three according to the significant value of 0.3 to 0.9, which are significant elements Ni, Pb=Cu=Zn and As, abundant elements in lateralization and sulphide mineralization. The geochemical characteristics of the Ni element reflect the associated distribution of ultramafic weathering which results are transported regionally and together with other elements as stream sediments. While Pb, Cu, Zn are related to quartz veins in metamorphic or intrusive rocks.