Regional Briefing Book
Briefing Book (Updated up to 31st December, 2013) Tight F2 fold in Biotite schist, Dhikan area, Pali district, Rajasthan Geological Survey of India Western Region EXECUTIVE SUMMARY E X E C U T I V E S U M M A R Y 1. All the items proposed for the Field Season 2013-14 were timely initiated under the different Missions. The work is under progress and the assigned targets will be achieved as per schedule. 2. The highlight of work carried out during the third quarter of F.S. 2013-14 includes investigations on copper and associated precious metals in Khera block, and Khera SE block, Mundiyawas-ka-khera area, Alwar district, exploration for basemetal in Nanagwas area, Sikar district, exploration for basemetal in Palaswala ki Dhani Block, Sikar district, Rajasthan and investigation for copper and tungsten in Kamalpura Block of the Pur-Banera Belt, Bhilwara District, Rajasthan. Besides, search for cement grade limestone under Project Industrial, Fertiliser and other Minerals have also yielded significant signatures. 3. Under the item investigation for copper and associated precious metals in Khera Block, Mundiyawas-Khera area, Alwar district, Rajasthan, the borehole KBH-11 (FS 2013-14) commenced on 08.07.2013 and closed at 130.35 m depth on 13.09.2013. It has intersected light grey coloured, fine grained, hard, compact siliceous rock with occasional cherty quartzite and scapolite rich bands (meta volcano sedimentary rock). The borehole intersected sulphides manifested in the form of foliation parallel fine disseminations of arsenopyrite and fracture / vein filled coarse grained chalcopyrite with minor pyrrhotite from 44.55 m depth onwards with intermittent rich zones between 45.25 m & 49.80 m (4.55 m), 58.70 m & 63.25 m (4.55 m) Cu (V.E.) = 0.8-1.0% along the borehole.
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