Table of Contents 1.0 Introduction 2.0 Geology ... - Seiaacg.org

Table of Contents1.0 Introduction2.0 Geology, Exploration and Reserves3.0 Mining4.0 Blasting5.0 Mine Drainage6.0 Site Services

Pre – feasibility Report of M/s Agrasen Mines & Minerals, Jotpur Dolomite Mine 4.592 Hectare2.0 GEOLOGY, EXPLORATION AND RESERVES2.1 GeologyIn the area, the Dolomite of Saradih formations of Raipur group are present in the form of inlierswithin pink stromatolitic Limestone / shale sequence of the same formation. The exposures arepresent in the form of floating plains of Dolomite in soil cover. The Dolomite is gray colored (havingdifferent shades), compact, massive, fine to medium grained and hard. It breaks with subconchoidalfractures. Because of some Stromatolitic structures, its broken surface is uneven. Somethin stringers of argillaceous material are seen. No quartz or chert bands are seen in the samples.Some underground cavities are observed in the exposures on the slope of north direction. Thesecavities are filled either with clayey soil or laterite gravels, indicates presence of open fractures inDolomite formation. On the surface, the Dolomite shows typical elephant skin weathering. TheDolomites outcrops is observed all over in the open pits and trenches of the proposed area.Geologically, the applied area comes under the North extension of Baradwar, sub basin ofChhattisgarh basin (Chhattisgarh super group). This sub basin is situated in the East-Central part ofChhattisgarh sedimentary basin. Chhattisgarh basin consists of sub horizontally disposedsedimentary succession mostly of Sandstones and Shale, Limestone and Dolomite of upperProterozoic age. The generalized geological succession of the area is given as follows.2.2 Stratigraphical SuccessionCHHATTISGARH SUPERGROUPGroup Formation MemberIntrusivesDolerite dykeManiyari(70 m)Purple shale with dolomite, dolomitic limestoneand gypsumHirri (70 m+)Grey dolomite, argillaceous dolomiteTerenga Bilha Purple dolomitic argillite(180 m ?) Dagauri Green clay, chert and shale intercalation(tuffaceous?)Kusmi Pink to purple calcareous shaleChandi(67 m)NipaniaPendri /DeodongarPurple and bedded limestonePurple argillaceous stromatolitic dolomitePurple and grey stromatolitic limestone anddolomite with flaggy limestone-shaleintercalation / ferruginous glauconitic areniteand shaleGunderdehi Newari Pink and buff stromatolitic limestone anddolomiteAndha /DotoparPredominantly pink, purple and grey shale withlimestone intercalation / arenite / buff to greenshale member in the middleCharmuriya Bagbura Purple limestone (phosphatic)Raipur Group4

Pre – feasibility Report of M/s Agrasen Mines & Minerals, Jotpur Dolomite Mine 4.592 HectareThe Geological Sections were utilized to calculate the sectional area of the differentlithological units.2.6 Summary of ReservesCategoryTotal MineralResources (A +B)A- Mineral ReserveUNFCcode--- 2.412Reserves (inmt)GradeCaO-30.45%MgO-18.63%Proved Reserve 111 -Prabable121 &1.454Reserve12230.45% CaO18.63% MgOB-Remaining ResourcesFeasibility mineralresourcePre-feasibility mineralresourceMeasured MineralResourceIndicate MineralResourceInferred MineralResourceReconnaissanceMineral Resource211 -- --211 &2220.793331 -- ---332 --- ---333 0.165 ---334 ---7

Pre – feasibility Report of M/s Agrasen Mines & Minerals, Jotpur Dolomite Mine 4.592 Hectare3.0 MINING3.1 Mining MethodThe proposed method of mining will be open cast semi mechanized. Open cast mining is asurface exploration method.In the lease area the ore body is covered by alluvial soil & lateritic soil. In the first five yearmining will be carried out in eastern part of the lease area .The average thickness of top soil is to be considered about 3.26m which will be removedsystematically prior to actual mining of limestone.The detail of bench parameter have been given under yearwise development/production offirst five year plan. Drilling and blasting of limestione have been proposed will be carried outby using jack hammer. Blasting will be carried out with the help of special gelatin and safetyfuse. ANFO will also be used after taking permission.3.2 Development and Proposed ProductionDetails of Development ProgrammeYear Overburden benches Benches in LimestoneNo. Height Length Width Area m21 st year 1 3.26 m 67.59 93.5 6319.662 nd year 1 3.26 m 49.01 124.4 6096.843 rd year 1 3.26 m 25.03 128.8 6664.004 th year - - - - -5 th year - - - - -The proposed rate of production will be 55367.28 tons per year from the fifth year onwards andthe expected life of mine will be about 20 years.3.3 Conceptual Mining Plan8

Pre – feasibility Report of M/s Agrasen Mines & Minerals, Jotpur Dolomite Mine 4.592 HectareGovt. can take conceptual period up to 30 years only as per samctioned lease for the periodof thirty years production. Reserves will be recalculated by the help of 7 exploratory borehole during the plan period and machines will be proposed accordingly in scheme period.The mining proposed in 2 nd ,3 rd , 4 th , 5 th and 6 th year is as follows:S.No. PARTICULARS 2 nd five 3 rd five year 4 th five year 5 th five year 6 th five yearyear1 Exploration work Nil Nil Nil Nil Nil2 Expected quantity 25393.62 27981.32 Nil Nil Nilof soil to begenerated3 Production of 65000 65000 65,000 60000 NilDolomitet/year T/year T/year T/year4 Plantation5050 plants 75 plants 75 plants NilProgramme plants/year per year per year per yeara) After completion of the mining the sufficient material for the reclamation of the pits isnot available. During the conceptual period total 1,42,577.25 tonnes overburden will begenerated. Therefore abandoned pit after mining will be use for water accumulation forthe purpose of irrigation, fishery etc.b) Final slope of the benches will not be more than 45 degrees.c) Ultimate dump area required for soil dumping will 11,599.3 m2 soil dump will stackinside the lease boundary of mining lease area and the height of the dump will be 5.0 min pyramidal shape with flat top.d) Exploration will be carried out by minimum 3 borehole in the first five year of the miningplanIt is proposed to be semi mechanized open cast mining. One bench in dolomite will beformed as proposed in the plan.3.4 Utilization of mineralDolomite is useful in many industries. Its uses in different industries depends upon itschemical constituent. It is used in iron and steel industries, refractory industries, ferroalloys, chemical and glass industries, fertilizers, plant, paper and rubber industries.In Chhattisgarh dolomite is mostly used in and iron steel industries.3.5 ining Machinery9

Pre – feasibility Report of M/s Agrasen Mines & Minerals, Jotpur Dolomite Mine 4.592 HectareThe mine is fully mechanized & list of machinery for drilling, blasting, loading and otherallied activities which is common for Pathariya Limestone Mine Lease I & II are givenbelow.Table – 3.3: Mining MachinerySr. Type Nos. Make Motive CapacityNo.Power1 Compressor 1 Atlas Copco Diesel 110CFM85 HP2 Drifter wagon drill 1 Atlas Copco Comp. air 1003 JCB4 Tipper 2 Tata Diesel 10 tonns85 HP4.0 BLASTING:10

Pre – feasibility Report of M/s Agrasen Mines & Minerals, Jotpur Dolomite Mine 4.592 Hectare(1) Broad blasting parameters-Burden- 1.2mDepth of the hole- 3.3mSpacing- 1.65mDia. Of the hole-65mmCharge per hole-2000gmsMaximum number of holes blasted in a round-5 nos.Maximum no. of holes blasted/ day will be about-15 nos.The total quantity of explosive used per day will be-30 kg.Total (max. Capacity) material to be blasted/ annum shall be-83,790 toneQuantity broken/ hole = 1.2 x 3.3 x 1.65 x 2.85 (B.D.)=t/hole18.62/hole(2) Explosive material to be used-Special Gelatin.Ordinary detonatorSafety fuseANFO after taking required permission.(3) Storage of explosive-Explosive will be stored in a portable explosive magazine for which the applicant will take asuitable license from Controller of Explosive, Agra. The specification of portable magazine is givenbelow:Type- B and S type portable.Capacity- Class 3 Nitro compounds 100 kg.Class 6 Cdivi-1 (safety fuse)- 3000m.Class 6 Divi-ordi Deto-10000 Nos.(4). Power factor in ore-9 tones/kg of explosive will be used.(5).Whether secondary blasting is needed- No.4.1 Noise:The following steps are taken to minimize pollution by noise.11

Pre – feasibility Report of M/s Agrasen Mines & Minerals, Jotpur Dolomite Mine 4.592 Hectare(a) Blasting will be well designed and will be carried out periodically.(b) Blasting will be planned to minimize boulders.secondary drilling and blasting is avoided.5.0 MINE DRAINAGE12

Pre – feasibility Report of M/s Agrasen Mines & Minerals, Jotpur Dolomite Mine 4.592 HectareThe sub parallel drainage pattern and rectilinear flow of Mahanadi and its tributaries also suggestpresence of faults and major fractures in the applied area.(a) Likely depth of water table based on observations from nearby wells and waterbodies:-The water table is 20m below the general ground level. The general ground level. The generalground level is 214 M.S.L. No Pumping will be required; unless working will reach below 20m or194 M.S.L. from normal ground.(b) Working is expected to be above the water table by the end of 5 th year.© Quantity and quality of water will likely to encounter pumping arrangement, at places whererain water will accumulate in open pits, and is finally proposed to be discharged:In course of heavy rains and future seepage of water , it is expected that the lessee has to provide5H.P. diesel pump of following specifications.Motor HP = 5Suction- 50mmDelivery- 40mmTotal head 20mPumping capacity- 500 liters per minute.The pumped out water will flow through drains and finally confluence into out of the area in Northdirection for rainwater harvesting purpose.Note:- The pump will be kept standby. At present there is no water in the pit to be drained out, ifin Rainey season condition for draining water out of pit is required pump will be installed.13

Pre – feasibility Report of M/s Agrasen Mines & Minerals, Jotpur Dolomite Mine 4.592 Hectare6.0 SITE SERVICESStatutory Requirement:The following site services will be provided at the mine:(a) Managers office(b) Rest Shelters(c) Drinking Water(d) Urinals and Latrines(e) Fiest aid room(f) Explosive magazinesMaintanence Requirement:a) Room for storage of spare parts and fuelb) Work shop for maintanence of machinery and vehiclesAdministrative Requirement:a) Managers office14