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The petrography as well as major, trace and rare earth element (REE) compositions of Mesoarchaean Naharmagra quartzite of Aravalli Craton have been investigated to determine influence of sorting and recycling, source area weathering and provenance composition. The quartzites are mineralogically mature, medium to coarse grained quartz arenite with minor medium grained arkose. Petrographic analysis revealed that the quartzites were primarily derived from granite and metamorphic basement rocks of typical cratonic interior. All samples have SiO 2 /Al 2 O 3 > 10 (average ~31), which indicates high maturity consistent with petrographical results. Quartzites are depleted in many major and trace elements due to quartz dilution. Many of the samples have undergone postdepositional K metasomatism. The calculated premetasomatic CIA values (46-92) indicate highly variable degree of source weathering compatible with non-steady state weathering. CIA and PIA values in combination with petrographic evidence favour intense chemical weathering probably under warm and humid climate. Provenance modeling indicates that the quartzites can be best modeled with a mixture having 50% tonalite-trondhjemite-granodiorite, 40% granite and 10% basalt. Probably, the sedimentation of these rocks took place in a stable and young cratonic basin evolved through accretion and tectonic amalgamation of pre-existing continental arcs comprising TTG and granitic bodies.Keywords: geochemistry, crustal evolution, Aravalli craton, Rajasthan, Indian shield greenstone tectonics and the upper crust was predominantly mafic in composition. Condie (1993Condie ( , 1997 suggested that upper crustal geochemical changes at APT can be related to four evolutionary changes of earth history i.e., (i) komatiite effect, (ii) tonalite-trondhjemitegranodiorite (TTG) effect, (iii) subduction effect, and (iv) weathering effect. The komatiite effect is preserved in the sedimentary rock records in terms of high Ni-Cr contents, flat REE patterns and no Eu-anomaly in Archaean sedimentary rocks. The sedimentary rocks derived from TTG sources will display highly fractionated REE patterns with high (La/Yb)n ratios and Y depletion. The subduction effect is preserved in terms of less fractionated REE patterns and less depleted large ion lithophile elements (LILE) in comparison to TTG derived sediments. Some geochemical changes across APT may be related to palaeoweathering effects, since in some cases the intensity of chemical weathering decreased during postArchaean period. Therefore, the geochemistry of clastic sedimentary rocks is particularly helpful in constraining the crustal evolution during Archaean (McLennan et al.,

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