Historical and Geomorphological Characterization of a Brazilian Karst Region
DOI:
https://doi.org/10.3986/ac.v38i2-3.128Povzetek
This work aims at presenting the geographical characterization of the Cordisburgo karst region, in the State of Minas Gerais, Brazil, by applying the consolidated concepts of the classical karst adapted to the reality of the intertropical karst. The characterization of the karst in the region, led to an exploratory mapping of the main karst features using the methodology proposed by the Commission of Karst Phenomena of the French National Geography Committee, adapted by Kohler. The choice of this methodology was made on grounds that the existence of many Dinaric and Intertropical Karst maps facilitates comparative analysis. As a result of this study, a map summarized the distribution of the karst features for the first time in this region, providing relevant information for the geoenvironmental compartmentation of the Cordisburgo area and important subsides for the sustainable management of that region. Due to its geological, geomorphological, hydrological and biogeographical characteristics, karst in this region is an expressive example of the Brazilian intertropical karst whose superficial and subterraneous evolution must be understood as a complex phenomenon. There is little research on the Lagoa do Jacare Formation. Thus, it is premature to state that the karst in Cordisburgo presents a low karstification rate in its entire carbonatic pack. Studies on the magnitude and the direction of underground water are still insufficient, however.
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