Identificação de minerais presentes nos sedimentos da praia da Costa de Sol, Maputo

Abstract

The knowledge of mineralogical fractions provides information on the evolution of different geological environments as these are the largest constituents of rocks in nature, due to the properties that minerals present these can resist various processes involved in nature from the most complex as weathering or even such as erosion. Thus minerals are an integral part of the evolution of different geological environments. Costa de Sol beach is one of the environments with presence of these mineralogical fractions. In order to identify the minerals present in Costa de Sol Beach, 6 sediment samples were collected at 100m separated distances and then subjected to laboratory analysis using an X-ray Diffractometer. From the results obtained, 7 different samples were identified. types of minerals namely: Manganite, Humerite, Andersonite, Kaolinite, Roubaulite, Quartz and Berlinite. In the analysis it was noted that Berlinite was the most reflected and abundant mineral in the region with a concentration of 81% followed by Quartz with 42%. The least abundant mineral was Roubaulite with a concentration of 2% and was reflected in only one sample. These results are a key element for mapping the natural resources on our coast and can be a starting point for natural resource assessment.