Editing Sorocaba (section)

===Geology===
Sorocaba is located exactly on the limit between the sedimentary rocks of [[Parana Basin|Parana Sedimentary Basin]] (Itararé Group, in glacial and deltaic palaeoenvironments of Permian-Carboniferous age) and crystalline basement (Neoproterozoic). Important [[granite]] massifs are Sorocaba Massif (calc-alkaline I-Type) and São Francisco Massif (Subalkaline, A-Type). Metamorphic low grade rocks as phyllites, metacalcareous, metarenites, are marine metassediments are included in Sao Roque Group ([[Neoproterozoic]]) with structural trend northeast-southwest. The [[Ipanema Hill]] or [[Ipanema Hill|Araçoiaba Ridge]] is a prominent and isolated topographic elevation, it comprises ultrabasic-alkaline intrusion age ([[Mesozoic]], Early [[Cretaceous]]), remnant of ancient [[volcano]]. It was the first iron mine, [[ironworks]] and metallurgy of Brazil, [[Royal St. John of Ipanema Iron Foundry|Ipanema]]. The ore was exploited from [[magnetite]], probably associated to [[carbonatite]] body.