The [[Tectonic evolution of the Aravalli Mountains#Evolution of the Archean Basement|archean basement]] had served as a [[Indenter tectonics|rigid indentor]] which controlled the overall [[Mantle wedge|wedge shaped geometry]] of the orogen. [[Lithology]] of area shows that the base rocks of Aravalli are of Mewar Gneiss formed by high-grade regional [[Metamorphism|metamorphic]] processes from preexisting formations that were originally [[sedimentary rock]] with earliest life form that were formed during the [[archean]] eon, these contain fossils of [[unicellular organism]] such as [[green algae]] and [[cyanobacteria]] in [[stromatolite|stromatolitic]] carbonate ocean reefs formed during the [[paleoproterozoic]] [[Era (geology)|era]]. [[Sedimentary exhalative deposits]] of [[base metal]] [[sulfide]] ores formed extensively along several, long, linear zones in the Bhilwara aulacogen or produced local concentration in the rifted Aravalli continental margin, where rich stromatolitic [[phosphorite]]s also formed. [[Tectonic evolution of the Aravalli Mountains]] shows Mewar GenissGneiss rocks are overlain by Delhi Supergroup type of rocks that also have post-Aravalli intrusions. Metal sulfide ores were formed in two different epochs, lead and zinc sulfide ores were formed in the sedimentary rocks around 1.8 Ga years ago during [[Paleoproterozoic]] phase. The tectonic setting of zinc-lead-copper sulfides mineralisation in the Delhi supergroup rocks in Haryana-Delhi were formed by [[mantle plume]] volcanic action around one billion years ago covering Haryana and Rajasthan during the [[mesoproterozoic]]. In the southern part of the Aravalli supergroup arc base metal sulfides were generated near the subduction zone on the western fringe and in zones of back-arc extension to the south-east. Continued subduction produced [[tungsten]]-[[tin]] mineralisation in S-type (sedimentary unmetamorphosed rock), [[felsic]] (volcanic rock), and [[pluton]]s (crystallised solidified magma). This includes commercially viable quantities of minerals, such as [[Phosphorite|rock phosphate]], [[lead]]-[[zinc]]-[[silver]] mineral deposits at [[Zawar]], Rikahbdev [[serpentinite]], [[talc]], [[pyrophyllite]], [[asbestos]], [[apatite]], [[kyanite]] and [[beryl]].<ref name=deb1>M. Deb and Wayne David Goodfellow, 2004, [https://books.google.com/books?id=H64sxguvlpMC&dq=stromatolites+tosham+aravalli&pg=PA260 "Sediment Hosted Lead-Zinc Sulphide Deposits"], [http://www.narosa.com Narosa Publishing], pp 260.</ref><ref name=irs1>Naveed Qamar, [http://www.naveedqamar.ga/2017/01/indian-shield-rocks.html "Indian shield rocks"] {{Webarchive|url=https://web.archive.org/web/20170720205058/http://www.naveedqamar.ga/2017/01/indian-shield-rocks.html |date=20 July 2017 }}.</ref>