1 District Mineral Survev Report : ilES TRI C T LEVE L E IVVIRO]VME ]Y T IMPACT ASSESSME]YT AUTHORITY (NE*TAA) DAVAI{GERE DISTRICT DISTRICT MINEML SURVEY REPORT sl. Page Contents No No. a I Introduction J 2 Overview of Mining Activity in the District 4 a J List of minor mineral lease Details 5-1 I 4 Status of Mining lease applications in Davangere district t2-13 5 Royalty / Revenue received in last 03 years details I4 6 Process of Deposition of sediments in the river of the District: 15 7 Karnataka Geological Map t6 8 Davangere District Geological Map l7-18 9 District River Stream Sand Source 18 10 List of Sand Blocks in Thungabhadra River Bed t9-22 ll Rain fall month wise statement 23 Introduction : Davanagere District is an administrative district of Karnataka state in India. The district occupies an area of 5,926 km2. Before declaring the Davangere as an individual District, present Davangere District Talukas were joined with Shimoga, Bellary and Chitradurga District. During 1997 Davanagere district was formed whose headquarter is Davanagere, came into existence. Present Davangere District is comprises following 6 taluks namely Channagiri, Honnali, Harihara, Davanagere, Harapanahalli & Jagalur. The western part of the district boundary is adjoined by Haveri district, north-eastern part is adjoined by Bellary district and Chitradurga Districts and South Western part of the district is adjoined by Chikkamagalur and Shivamogga districts. The district is slightly elevated, sloped, gently sloped and formed by plain lands. Intersected by hills and river valley. A range of hills extended from south to north direction and Davangere Water shed basin is comes under basin of Krishna and sub basin of Thungabhadra. The principal major river is Thungabhadra River flows in western part of the district runs around 122 km in Davangere district. The mineral wealth is concerned the major minerals occurred in the district is manganese, Iron ore, quartz and white qvartz which are now classified as a minor minerals, which are presently working mineral sources in Davangere District. The manganese ore occurs in large quantity all along the hill side in the north eastern part of Davangere Taluk and the building stone is available abundantly in all taluks, except Hadharc. Whereas major part of building stone mineral is occurred in Harapanahalli, Davangere, Channagiri, Jagalur and Honnali Taluks respectively in the order of abundance. o Manganese is the major mineral available in the district. o White quartz and Fuchsite quartzite (green quartz) minerals are also available in Harapanahalli, Honnali and Channagiri taluks which is now classified as in minor menial. o The chemical composition of naturally occurring Manganese ore is as follows:- Above 35-40o/o, size 18-200 , feet 12-l5ohmeter 15-20% H20 10- Lr%. o Davangere district is situated in the center part of Karnataka State. Adjoining with Chitradurga, Bellary, Haveri, Shivamogga and Chikkamasaluru district. 3 Over view of the Minins Activities in the District: The Davangere District is comes right on the archaean complex and the geology of the area is fairly simple. The rock formations belonging to the archaean types are composed of crystalline granitic gneisses, granites and crystalline schist's. Apart from these minerals the associated rock types are also occurred as patches here and there and many of these rock types are highly melamorphosed, biggest of these schist rocks, the schist rocks are existed in Honnali, Channagiri, Harapanahalli and Jaglur areas. Major part of the district is covered by granite and granitic gneisses which belongs to the Archaean-age in stratigraphy. o The schist formation occurred and passes on Channagiri, Honnali, Jaglur and in Harapanahalli taluks. o The major portion of the district is covered by granite and granitic gneiss. Mining activity in Davangere district is as follows: In this district the major mineral leases are Iron ore, manganese and molding sand, existed in aglur, Davangere and Harihara taluks in Davangere District. The details of the mining leases are as follows: List of major mineral mining lease Details SI Village/ Taluk Mineral Acre- Gunta no Location I Davanagere Manganese Hulikatte JZ-LJ 2 Davanagere Manganese Hulikatte 32-31 a J Jagaluru Iron ore Marenahalli 38-46 4 Harihara Moulding Sand Halasabalu 28-34 Moulding Sand 5 Harihara Chikabidari 52,63 6 Harihara Moulding Sand Guttur r0-52 Sand 7 Harihara Moulding Guttur l6-19 8 Harihara Moulding Sand Bilasanuru 48-60 9 Harihara Moulding Sand Sarathihalli l2-ts Moulding Sand t0 Harihara Rajanahalli 18-61 ll Harihara Moulding Sand Rajanahalli 25-49 4 ro a a $< t< o a a a rn a a a l.r L l< r< o a a () f.r r< l-J f-.i t< t< a) (l) () (l) (D >. c.) C) C) 0.) 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