06 IMYB2011-CHHATTISGARH.pmd - Indian Bureau of Mines

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GSI Coal (Mahanadi va lley coal fields) Rai garh -do- STATE REVIEWS Nawagaon - - - - - Regional exploration under G-2 Teram Table – 3: Details of Exploration Activities in Chhattisgarh, 2010-11 Agency/ Location Mapping Drilling Sampling Remarks Mineral/ Scale Area No. of Metreage Reserves/Resources estimated District (sq km) boreholes - - - 11-6-4 - - stage ini tiated during FS 2009-10 was continued in this bl ock, Mand – Raigarh Coalfield to establi sh the developmental pat tern and continuity of the regional Barakar coal seams, and to assess coal resources potentiality as well as to carry out appraisal of CBM cont ent. Ten regional Barakar coal seam / zones (Seam I to X, in ascendi ng order) have been intersected b etween th e depths of 45.37 m and 457 .18 m. The important seams are Seam – I, IV, VI, VII and VIII with cumulative thickness of coal ranging from less than a meter to 10.46 m. Seam IV is the thickest seam and was intersected b etween th e depths of 24.43 m and 425.04 m. Cumulative coal thickness of Seam I and IV varied from 2.35 m to 10.46 m. The work is in progres s. Regional explo ratio n und er G-2 stage was tak en up du ring FS 2010- 12 in this block Mand – Raig arh coalfield to establish the developmental pattern and continuity of th e region al Barakar coal seams in tersected in explo red adjacent Kurumkela Blocks in the north-cen tral part of Mand – Raigarh Coalfield an d to evaluate additional coal resource in the area. In boreho le-2 formational contact betw een Ba rren Measures and Barakar Formation was intersected at 162.22 m d epth. In Barakar Fo rmation , ten regiona l coal seams (Seam III to XII in ascend ing order) w ith cumulative thickness betw een 0.50 to 13.74 m intersected b etween the depths of 202.88 and 477.50 m. T he thickest sea m is highly banded in nature and its cumulative thic kn ess ranges from 11.90 m to 1 3.7 4 m. The work is in progress. (Contd.)
Table - 3 (Contd.) STATE REVIEWS Agency/ Location Mapping Drilling Sampling Remarks Mineral/ Scale Area No. of Metreage Reserves/Resources estimated District (sq km) boreholes GSI Coal Surguja Korja - - - 11-6-5 - - Regional exploration under G-2 stage was taken up during FS 2010-12 in this Hasdo - Arand Coalfield to establish the developmental pattern and continuity of the regional Barakar coal seams established in previously explored Pendrakhi Block in the west, to assess coal resource potentiality of the area as well as to generate CBM baseline data. The formational contact between Barakar and Talchir Formations is recorded at the depth of 365.60m in borehole – 1. Four regional Barakar coal seams / zones (Seam III to VI in ascending order) have been intersected between depths of 97.10 m and 188.65 m within Barakar Formation. Coal Seam /Zone IV and V are considered to be significant because of their cumulative coal thickness which ranges from 6.20 m to 7.75 m. Seams/Zones IV and V are represented by Composite Section with coal split varying in thickness from 0.30 m to 4.10 m. Four local coal seams (Seam L1 to Seam L4 in ascending order) have been recorded between depths of 258.95 m and 341.85 m within Lower Member of Barakar Formation. Thickness of individual split section varies from 0.15 m to 4.10 m. The work is in progress. (Contd.)
Page 1 and 2: Indian Minerals Yearbook 2011 (Part
Page 3: 11-6-3 Table - 1 : Reserves/Resourc
Page 7 and 8: Table - 3 (Contd.) STATE REVIEWS Ag
Page 9 and 10: Table - 3 (Contd.) STATE REVIEWS Ag
Page 11 and 12: Table - 3 (Concld.) STATE REVIEWS A
Page 13: Table - 5 (Contd.) Industry/plant C

06 IMYB2011-CHHATTISGARH.pmd - Indian Bureau of Mines

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