期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2016
卷号：7
期号：12
页码：4723-4732
出版社：University of Mohammed Premier Oujda
摘要：The Béni-Snassène granitic massif is composed principally of granodiorite that was the object of a strong arenisation accompanied with a locally strong kaolinization. The weathering sequences of this granodiorite have been studied by macroscopic and microscopic analyses, X-Ray diffraction (XRD) and chemical analyses (XRF). Chemical Index of Weathering (CIW) and the Alteration Index of Ishikawa (AI) were calculated and used as weathering proxies. The results show that the weathering is mostly meteoric than hydrothermal alteration. The lack of sulphides within the kaolinized zone suggests a supergene kaolinization. However, the influence of the hydrothermal alteration is certain and proven by the presence of Pb-Zn-Cu-Ba mineralization indices.
