2017
DOI: 10.1590/2317-4889201720170047
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Abstract: Magmatism associated with the Alto Paranaíba structural high comprises kimberlites, kamafugites, and alkaline complexes, forming an approximately 400 x 150 km NW-SE belt in the southern São Francisco Craton. Dating of some intrusions reveals ages between 120 and 75 Ma. Chemical analyses of garnet recovered in alluvium from traditional diamond digging areas indicate peridotitic garnet windows in Três Ranchos and Coromandel. Six hundred and eighty (680) diamonds acquired or recovered during mineral exploration i… Show more

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Cited by 7 publications
(2 citation statements)
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“…The discovery of mineralized kimberlite pipes is more recent and Canastra-1 is the first with recognizable economic interest (e.g., Chaves et al 2008 a,b). The knowledge is limited on the kimberlitic sources of the placer deposits and the theme is still under discussion (e.g., Tappert et al 2006;Karfunkel et al 2014, Pereira et al 2017. The distinct composition of the SCLM along the Azimuth 125º Lineament indicates that different mantle sources can be related to the origin of the diamond that occur in the studied area.…”
Section: Implications To Diamond Occurrencesmentioning
confidence: 98%
“…The discovery of mineralized kimberlite pipes is more recent and Canastra-1 is the first with recognizable economic interest (e.g., Chaves et al 2008 a,b). The knowledge is limited on the kimberlitic sources of the placer deposits and the theme is still under discussion (e.g., Tappert et al 2006;Karfunkel et al 2014, Pereira et al 2017. The distinct composition of the SCLM along the Azimuth 125º Lineament indicates that different mantle sources can be related to the origin of the diamond that occur in the studied area.…”
Section: Implications To Diamond Occurrencesmentioning
confidence: 98%
“…The discovery of mineralized kimberlite pipes is more recent and Canastra-1 is the first with recognizable economic interest (e.g., Chaves et al 2008 a,b). The knowledge is limited on the kimberlitic sources of the placer deposits and the theme is still under discussion (e.g., Tappert et al 2006;Karfunkel et al 2014, Pereira et al 2017. The distinct composition of the SCLM along the Azimuth 125º Lineament indicates that different mantle sources can be related to the origin of the diamond that occur in the studied area.…”
Section: Implications To Diamond Occurrencesmentioning
confidence: 98%