Stratigraphy of the Roraima Supergroup along the Brazil-Guyana border in the Guiana shield, Northern Amazonian Craton - results of the Brazil-Guyana Geology and Geodiversity Mapping Project

Autor: Nelson Joaquim Reis, Deokumar Lachhman, Serge Nadeau, Maria Telma Lins Faraco, Randy Ault, Leandro Menezes Betiollo, Jimmy Reece, Lêda Maria Barreto Fraga
Rok vydání: 2017
Předmět:
Zdroj: Brazilian Journal of Geology v.47 n.1 2017
Brazilian Journal of Geology
Sociedade Brasileira de Geologia (SBGEO)
instacron:SBGEO
Brazilian Journal of Geology, Vol 47, Iss 1, Pp 43-57
ISSN: 2317-4889
DOI: 10.1590/2317-4889201720160139
Popis: The Geological and Geodiversity Mapping binational program along the Brazil-Guyana border zone allowed reviewing and integrating the stratigraphy and nomenclature of the Roraima Supergroup along the Pakaraima Sedimentary Block present in northeastern Brazil and western Guyana. The area mapped corresponds to a buffer zone of approximately 25 km in width on both sides of the border, of a region extending along the Maú-Ireng River between Mount Roraima (the triple-border region) and Mutum Village in Brazil and Monkey Mountain in Guyana. The south border of the Roraima basin is overlain exclusively by effusive and volcaniclastic rocks of the Surumu Group of Brazil and its correlated equivalent the Burro-Burro Group of Guyana.
Databáze: OpenAIRE