A DRAFT REPORT ON

PROSPECTING OF LIMESTONE IN KOSDANA BLOCK, TEHSIL GANDHWANI, DISTRICT DHAR (M.P.) (FIELD SEASON 2017-18)

PREPARED BY: 

RAVINDRA PARMAR SAVAN SINGH CHOUHAN ASSISTANT GEOLOGIST ASSISTANT GEOLOGIST  

SUPERVISED BY Dr.N.H.VAGHMAREY ASSISTANT GEOLOGIST 

DIRECTORATE OF GEOLOGY AND MINING M.P. REGIONAL OFFICE INDORE MADHYA PRADESH  CONTENTS

ABSTRACT

CHAPTER - 1 INTRODUCTION 01-04 1.1 LOCATION AND ACCESSIBILITY 1.2 PHYSIOGRAPHY AND DRAINAGE 1.3 CLIMATE 1.4 FLORA AND FAUNA 1.5 INHABITANTS 1.6 PREVIOUS WORK

CHAPTER 2 GEOLOGY 05-09 2.1 REGIONAL GEOLOGY AND STRUCTURE Ǧ CHAPTER - 3 DETAILS OF WORK DONE 10-12 3.1 RECONNAISSANCE GEOLOGICAL SURVEY 3.2 DEMARCATION AND DETAILED GEOLOGICAL MAPPING 3.3 TOPOGRAPHICAL SURVEY 3.4 DRILLING WORK 3.5 MINERALIZED AREA 3.6 SAMPLING

CHAPTER - 4 CHEMICAL ANALYSIS AND RESOURCE ESTIMATION 13-14

CONCLUSION AND RECOMMENDATION 15

REFERENCES 16

PERSONAL ENGAGED 17

RESOURCE CALCULATION BY AREA OF INFLUENCE METHOD OF 18

ANNEXURE 1: CHEMICAL ANALYSIS AND BOREHOLE LITHOLOGS 19-2 

LIST OF PLATES Ǧ PLATE - 1 LOCATION MAP PLATE - 2 KEY PLAN PLATE - 3 GEOLOGICAL MAP PLATE - 4 CADASTRAL MAP PLATE - 5 SURFACE CONTOUR PLAN PLATE - 6 DIGITAL ELEVATION MODE L PLATE - 7 SATALLITE IMAGE WITH BLOCK BOUNDARIES PLATE - 8 MAP SHOWING AREA OF INFLUENCE PLATE - 9 CADASTRAL MAP WITH BOREHOLE LOCATION PLATE - 10 MAP SHOWING BLOCK AREA , ANCILLARY AREA , AND RESTRICTED AREA ABSTRACT 

The present report pertains to prospecting of limestone in Kodana block of Dhar district. The present work was commenced in the month of April 2018 and continued till June 2018.The main object of present work is to delineate lateral as well as depth wise extension of the Limestone deposit along with the quantitative and qualitative appraisal to ascertain its industrial utility.

The study area is bounded between latitude N 22 020’19.694”: 22 020’48.374” and longitude E 74 055’52.989”: 74 056’10.224” and comes under toposheet no.46 J/15.

During the course of prospecting, an area of about 70 hectares has been demarcated /mapped over cadastral map on scale 1:4000, with the objective to demarcate limestone bearing areas on Khasra map and after deducting restricted area, an area of about 47.63 hectare of village Kosdana,Tehsil Gandhwani have been delineated as available mineralized area. Prospected area is confined to private as well as government revenue land. Private land is under cultivation. For auction an area of 47.63 hectares is being proposed, including 47.63 hectare mineralized and 21.618 hectares as ancillary area. During the period under report total 184.50 meter drilling has been carried out by putting 09 no. of boreholes not at regular grid interval, but try to maintain distance of 200 meter between the two successive boreholes and reveals that the average thickness of limestone is 13.10 meter with very thin, averaged 0.51 meter over burden of black cotton soil, weathered rocks and sandy soil. A sum total of 71 no. of core samples have been collected and sent for chemical analysis at departmental laboratory Jabalpur without any cross check analysis. Analysis results reveal that the limestone is suitable for cement industry. The  present  investigation,  comes within general exploration stage (G Ͳ2), hence the estimated resource of the  order  of  15.28  million  tones, by area of influence method , classified  as  indicated  resource with UNFC code of 332.  From the subsurface lithological data and chemical analysis of core samples, obtained through drilling reveals that the limestone of the area have weighted average 48.57 % CaO, where as silica & MgO contents are within the tolerable limit. Deposit has no or very thin overburden, continuous & sufficient thickness averaging 13.10 meter, without any intercalation of other litho units. Looking to the CaO content, in association with other essential elements the aforesaid deposits of limestone can be utilized in manufacturing of cement.  CHAPTER – I

INTRODUCTION

In pursuance of the field program of the Directorate of Geology & Mining Madhya Pradesh for the field season 2017-18, co-authors of this report carried out prospecting of Bagh limestone in the Cretaceous marine sediments of Bagh basin, in parts Kosdana village of Gandhwani tehsil of Dhar district of Madhya Pradesh, in accordance with the MINERAL AUCTION RULES 2015 and MINERAL EVIDENCE RULES 2015. Proposed limestone block for auction, having 47.63 hectares, without ancillary area Limestone and other carbonate rocks are extremely valuable raw materials and are widely used throughout industry, although the Construction and cement manufacturing industries are generally the principal consumers. Limestone is a sedimentary rock composed mainly of calcium carbonate (CaCo 3), occurring as calcite or occasionally aragonite in recent deposits. Around 20% of all sedimentary rocks are limestone or dolomite or gradations between the two. Common impurities in sedimentary carbonate rocks include clay minerals, silica (clastic material and/or chert), organic matter and iron hydroxide minerals. Other sedimentary carbonate rocks include marl, travertine and vein clay and limestone. Travertine is formed by rapid precipitation of calcium carbonate around hot springs. It is deposited in compact, fibrous or concentric layers producing a banded appearance. The softer and more porous form of travertine is known as calcareous tuff.

District Dhar is endowed with huge resources of limestone, belonging to Bagh group of rocks. Promising limestone bearing area, comprising part of village Kosdana of Gandhwani tehsil had been demarcated for further G-2 level prospecting by means of drilling. Though the limestone is of good quality, and major portion of proposed block occupies in government agriculture land.

1 1.1 Location and Accessibility:

The area under report falls within the Survey of India Toposheet No.46 J/15 and comes under the Kosdana revenue village of Gandhwani Tehsil of Dhar district, Madhya Pradesh.The nearest railhead is Indore. Other main towns, like Manawar and Gandhwani, are situated at a distance of about 32 Km and 10km respectively, from the proposed block and well connected by National highways No.3 and 59 respectively from Indore. The nearest railheads Mhow and Indore are situated at a distance of 55 km. and 90 km. respectively from district headquarter Dhar ( PLATE-1 ). 1.2 Physiography and Drainage:

The Bagh bed exposures form flat topped plateaus of elevations ranging from 220 metres to 260 meters. This is due to horizontal to very low dips of Bagh beds, hardly exceeding 05°. The area is gently undulating, the mean minimum elevation is 255.0 metres and the highest elevation is 327.0 mtr (about 4 km.North of block in Khojakuan village). The general country slope is to the south. The flat- topped hills comprising of basaltic flows rise to a height of 15 mtr to 50 mtr, from the ground level. Bagh limestone occurs as scattered mounds with flat-topped surfaces. The limestone bearing mounds have a general height between 5 mtr to 10 mtr. Valley portions in the area consist of Archaean rocks and Nimar sandstone. Prominent river Uri drain the area running almost north-south and ultimately joins the Narmada River at Koteshwar.

1.3 Climate:

The climate of the area is moderate. April to June is the period of summer with temperature reaching upto 44°C at places. Manawar, Gandhwani and Kushi Tehsils are comparatively hot then other tehsils of dhar district. Rainfall is moderate in the area and it is mostly due to the south westerly monsoon. The south-west Mansoon following the summer lasts till September or early weeks of October.

2 Rainfall in the area ranges from 80 cms. to 90 cms. The winters are moderate and dry.

1.4 FLORA AND FAUNA :

Black cotton soil supports thick forest growth. The main tree types are teak, Dhaora, Anjan and sal etc.The main crops of the area is wheat,maize, Juwar, Bajra, Gram, Sugarcane, cotton, Groundnut and pulses etc.The area has at present few resources forests where ‘teak’, ‘sal’, ‘mahuwa’ grow scantily along with shrubs constituted by ‘Amla’, ‘Korandi’, etc. Otherwise, the area is practically barren due to intensive cutting of wood for fuel/timber purposes without any substantial new plantation. Though at places, Forest Department of Madhya Pradesh Government is trying to make up the loss of vegetation by afforestation as witnessed around Balwari. Fauna is almost restricted to domestic animals due to virtual destruction of forest.

1.5 INHABITANTS:

The important tribes of the area are Bhil and Bhilala and they are mostly dependent on agriculture and manual labors.

1.6 PREVIOUS WORK The earliest account of the geology of the Bagh beds was given by Blanford (1869). Later on Vredenberg (1907), Bose (1984) and Gupta & Mukherjee (1938) have substantially contributed to the geology of Bagh beds and associated rocks of the area. These pioneering efforts have been compiled by Pascoe (1959). The Bagh sediments have been described by Blanford and Vredenberg as marine equivalent of the fresh water beds known as Lametas, but Bose has suggested that these sediments have been overlain unconformably by Lametas. Bose has further classified the Bagh beds into 4 groups viz. (a) Oyster beds, (b) Nodular limestone. (c) Deola and Chirakhan marl and (d) Coralline limestone in ascending order. These overlie the sandstones named as Nimar sandstone – with or without unconformity and according to Bose it is of fresh water nature and is generally older

3 to both Bagh and Lameta beds. Although there are some palaeontological evidences that Nimar sandstone can be grouped along with Bagh beds (Vredenberg, 1869). Palaeontological evidence shows that Bagh fauna shows relationship with Cretaceous faunas of Europe and a close affinity with a small fauna found in southwest coast of Arabia and stratigraphically is confined between basal Cenomanian to Turonian. During recent times, many workers have restudied the Bagh beds of the area as a part of systematic geological mapping programme of Geological Survey of India viz. Neelkantam (1967), Mahendra Singh (1965), Munshi & Khan (1973), Munshi (1972), Sonakia & Nair (1976), Nair & Choubey (1977) and Nair & Choubey (1978).All of these workers include the sandstone in the basal portion of the Bagh and consider the limestone (nodular & coralline) with marl to constitute the upper part of the Bagh beds. Dr.N.H Vaghmarey &Pradeep Bhuriya carried out prospecting to carve out cement grade limestone block in Sitapuri-Deora-Udiyapura villages in Manawar tehsil and proposed a block of 344 hectare for auction. ______o0o______

4 CHAPTER – II

GEOLOGY

2.1 REGIONAL GEOLOGY :

Archaean rocks form basement over which unconformably overlie the bagh and the Lemata sediments covered by Deccan Trap flows and basic intrusions. The general stratigraphic succession in the area is as below :

Recent Soil Deccan Trap Basaltic lava-flows and basic intrusions. ------Unconformity------Lameta Quartzitic sandstone

Coralline limestone Bagh Beds Marl Nodular limestone Nimar sandstone ------Unconformity------Archaeans Granites, granitic-gneisses, phyllites, schistose rocks etc. with crystalline limestone, quartz and pegmatite veins.

Archaeans :

Archaeans rocks form the basement and oldest rocks in the area which are overlain by Bagh and Lameta sediments. The Archaean members are best exposed in river section of man, sukkar etc. East of Zirabad, around Attarsumba and in the nala section south of Jhiran, large outcrops of Archaean rocks has been recorded. The Archaean rocks consist of granites, granitic gneisses, phyllites, chlorite and/or hornblende schist’s, bands of crystalline limestone along with pegmatite and quartz veins .

The granite rocks have been greatly weathered and are represented in the area mostly as huge boulders and fragments composed essentially of quartz, pink-to-grey feldspar in the siliceous matrix. Chlorite and/or hornblende are the common accessory mineral.

Along with granites, highly metamorphosed rocks, i.e., granite- gneisses and mica schists are well exposed. Granite-gneisses show long alternate bands of granular (quartz-feldspar) and schistose

5 minerals (chlorite, hornblende etc.). They are hard, compact, well jointed, and smooth and polished due to river water action. The rocks are, steeply dipping and at many places folded.

Phyllites and schistose rocks, both chlorite and hornblende schist, in the area are highly weathered, folded and intruded by quartz veins.South east of Zirabad, near Attarsumba and Karondiya, bands of crystalline limestone trending NW-SE and dipping from 70 0 to nearly vertical have been recorded.

The crystalline limestone is dirty-white to yellowish and show concentric layers of anhedral calcite which are coarse in the central portion and thin out towards the periphery. The limestone is associated with the irregular mass of brown chert and quartz fillings.

Bagh Beds :

Nimar Sandstone :

Nimar sandstone is the oldest member of the bagh group. The sandstone rests unconfomably over the Archaean metamorphic and is overlain by calcareous rocks.

Nimar sandstone is well exposed at the junction of rivers man and sukkar. The sandstone exposures are noticed in the valley portions and at gentle mounds in the region near attarsumba, ghursal, Bariya, in the river bed of Sukkar, on Zirabad-Manawar road and further west in the river Sukkar, south-east and north-west of the Dhar cement plant etc.

The exposed thickness of the Nimar sandstone varies from 0.5 mtr to 6 mtr. The sandstone is conglomeratic at the base, succeeded by grity sandstone. At places it is interbeded with pink shale. The Nimar conglomerate consists of fragments of quartz, jasper etc., of varying degree of coarseness and roundness and are embedded in a siliceous to ferruginous matrix. The sandstones range from coarse, gritty to fine-grained rock of varying hardness and in different shades of red, pink purple, white etc. and are calcareous at places. Primary sedimentary structures mainly gradded bedding and current bedding is observed frequently in the sandstone unit.

In a well, south-east of the Dhar Cement Factory and in the road cutting Zirabad-Manawar road near Ratitalai , characteristic reddish, pinkish shaley horizons occur interbedded with the Nimar sandstone. In the area under study, the arenaceous facies (Nimar sediments) is overlain by the Bagh limestone.

6 The limestone occurs mostly along gentally slopping ridges and flat-topped mounds. The limestone beds are soft therefore their preservation is mostly due to the protective covering of the deccan trap flows.

A revised classification of Bagh beds as proposed by sahni and jain (1968) is as follows :

Marine 1. Coralline limestone

2. Nodular limestone with 1 to 5 ft. oyster bed at the Base. Fresh Water Nimar Sandstone.

In the area surveyed, limestone is the only mineral of economic interest. Deposition of Bagh limestone is observed in several localities e.g. Zirabad, Ghursal, Attarsumba, Karondiya, Bariya, Soyala, Sitapuri, Phutibawri, Chirakhan, Jhiran, Kachhauwada, Borghata, Chakrud etc.

Nodular-Argillaceous limestone:

In general, the nodular limestone directly overlies the Nimar sandstone and is most extensively developed. At places such as in the man river section, it rests directly on the Archaean metamorphics.

Nodular limestone is remarkably typical. At surface and near its contact with the overlying coralline limestone it shows characteristic nodular appearance. Near Kachhauwada, Attarsumba, Karondiya, Nimtoka etc., the peculiar nodular character is lacking and thick argillaceous limestone bands/blocks are exposed. According to Bose (1884) “On the whole, however the name seemed to me the best that could be given.”

The nodules in the limestone are irregular, varying from 3 cms. to about 30 cms. and are whitish, greyish to pinkish, inter mixed with calcareous clay. At places small, thin veinlets of calcite are also seen in the nodular limestone. Average thickness of this unit is about 5 mtr but beds as thick as 10 to 15 mtr have also been recorded.

Marl :

Marl a fine-grained, silty, calcareous rock has been recorded between the nodular and coralline limestone units. In the area, marl is best developed in the neighbourhood of Deola and chirakhan known as ‘Deola-Chirakhan marl’.

7 The marl is very soft almost flaggy type with varying shades of yellow, red, green and purple. Average thickness of marl is about 2 mtr. The marl bed is rich in marine Cretaceous fossils of Echinoids, Brachiopods, Lamellibranchs and cephalopods etc.

Coralline Limestone:

It is the upper most unit of the Bagh sediments, exposed widely in the surveyed area. This unit is so is named because of the presence of fragments of corals in the rock. The limestone is whitish-yellow, red, and pink and at places green, consists mainly remains and broken fragments of Bryozoa shells and corals. At many places the beds are laminated and well jointed. The average exposed thickness of this unit is about 3 mtr.

Lameta :

In the area, the Bagh limestone are overlain by the Deccan Trap flows but 500 mtr north of chakrud and 1 km east of Awral, the nodular and coralline limestone are overlain by lameta sandstone. The sandstone is quartzitic, hard, and compact and medium-to-fine grained with shades of white, pink and purple.

Deccan Trap:

In the area under reappraisal several detached patches of basaltic lava-flows have been recorded. The basalts overlie unconformably the limestone of Bagh group and at places the Lameta sediments. Around Zirabad, west of Ghursal, west of Ratitalai, south- eastern and further south towards Awalda from Bariya, on the ridges are covered by the Deccan Trap flows. The thickness of basaltic flows varies from 5 mtr to more than 20 meter. There flows are different in lithology, grain size and other characters and show well marked spheroidal weathering. Conical shape is the typical geomorphic feature of the lava covered hillocks. On either side of the ‘Dhar cement Works,’ east-west trending dolerite nearly 1 km long and 1 to 5 mtr wide are seen. A dolerite dyke of 5 to 6 mtr width have also been observed between attarsumba and karondiya. On the top, these dykes are very narrow but attain considerable width towards river man and further east.

Recent :

Recent formation consists of alluvium and black cotton soil whereas in some areas, red soil and yellowish calcareous soil and yellowish calcareous soil is also present.

8 2.2 MODE OF OCCURRENCES :

The Bagh limestone is deposited in bedded form having horizontal disposition and exposed on the surface, either in the form of mounds or low lying ridges.

2.3 STRUCTURE:

The Bagh beds are tectonically undisturbed, which is clearly evident by horizontal dip of the litho-units in the area and visible in river section,just east of proposed block. Only at some places dip of the beds are recorded up to 8° to 10°, and appears to be because of undulations / depressions within the Archaean basement, which has given a local tilt to these beds. Among primary sedimentary structures current bedding and ripple marks observed at some places especially within Nimar sandstone.

______o0o______

9 CHAPTER – III

DETAILS OF WORK DONE

3.1 RECONNAISSANCE GEOLOGICAL SURVEY

During the course of prospecting (field season2017-18), an area of about 50.00 km 2 had been rechecked / reconnoitered on scale 1:50000, with the objective to get acquainted with the geology of the area and to locate new limestone bearing areas. Study area bounded between latitude N 22 020’00”: 22 030’00” and longitude E 75 052’30”: 75 057’30” and comes under toposheet no. 46J/15. Reconnaissance geological mapping has revealed that the rocks of Archean, Bagh Group, Lameta Group and Deccan Trap are exposed in the area. The present investigation is concerned with the Bagh Group of sediments. The rocks of the Bagh group unconformably overlie the Archean rocks and occur as discontinuous outcrops. These are mainly exposed around in the central part of Toposheet 46 J/15 around Khojakuan,dedli B,Ajantar etc. Bagh beds are more or less horizontally disposed and comprise of three units lower Nimar Sandstone/red shale, middle Nodular Limestone and upper Coralline Limestone. Deola Marl bed exposed in Sitapuri and Chirkhan is considered as lower part of Coralline Limestone. Thickness of Bagh beds varies from few meters to 20 m. Coralline Limestone and Upper Nodular horizons are highly fossiliferous. Coralline Limestone generally occurs as a capping over the Nodular Limestone. Coralline Limestone is hard, compact and yellowish brown to reddish brown in colour. It exhibits beautiful current bedding. The upper part of the limestone has been silicified at places probably due to the thermal effect of an overlying basaltic flow. Its thickness varies from 1 m. to 5 m. This unit is highly fossiliferous. Coralline limestone is underlain by Nodular limestone is well developed in the proposed block. It is light grey to dark grey, fine grained and argillaceous in nature. Its thickness varies from 1 m. to 8 m. On

10 weathering it breaks into nodules ranging in size from a few centimeters to 30 cm. Upper most part of the Nodular Limestone changes locally to marl bed designated as Deola marl.

3.2 DEMARCATION/DETAIL GEOLOGICAL MAPPING:

During the period under report an area of about 70 hectares of village Kosdana has been mapped/ demarcated over the cadastral map on 1:4000 scale, with the objective, to demarcate limestone bearing areas on Khasra map. Most of the mapped area is covered by very thin cover of soil and pebbles of basalt and private land is under cultivation. Outcrops of coralline limestone are visible in the area. Limestone is horizontally bedded and well jointed (PLATE NO.-3) .A mining lease of 7.5 hectare is sanctioned to Shri Nilesh Upadhyay and duly demarcated on khasra map.

3.3 DRILLING:

The results of survey and demarcation of limestone in the area, leads to take up the prospecting of limestone in this block by means of drilling within the boundaries of revenue village Kosdana.During the period under report total 184.50 meter drilling has been carried out by putting 09 boreholes not at regular grid interval, but tries to maintain spacing of 200 meter between the two successive boreholes, wherever possible. The exact location of the boreholes has been plotted on the map, enclosed with this report (PLATE No.4) . Limestone is exposed on the surface and the maximum thickness rarely exceeds 15 meters, therefore boreholes are shallow & vary in depth from 14.50 meter to 24.50 meters (ANNEXURE- I) .

3.4 Topographical Survey :

The topographical survey has been carried out by departmental surveyor, with the help of theodolite and dumpy level to provide borehole points for drilling and try to maintain 200 M interval between the two successive borehole points. Reduced levels of each point have been established and later on contour plan on 2 M interval and digital

11 elevation model has been prepared.It was not possible to drill boreholes at regular grid interval. (PLATE NO.-5 & 6).

3.5 MINERALIZED AREA :

On the basis of detail mapping, an area of about 67 hectares, of village Kosdana had been selected for drilling. After deducting the 19.06 hectares restricted area, rest 47.63 hectares is available for grant of mining lease and designated as mineralized area (plate no. 7) .The mineralized area belongs to village Kosdana. During the course of prospecting, limestone is intersected in all the boreholes.

3.6 SAMPLING :

During the course of prospecting, 71 no. of core samples have been collected and prepared by conning and quartering method which finally crushed and passed through 100 mesh sieves, and sent to departmental chemical laboratory Jabalpur for its chemical analysis. To ascertain the authenticity of chemical analysis no check analysis had been done. Weighted average percentage were computed by multiplying the run of individual sample drawn from a borehole with its respective oxide percentage and the sum of all such values obtained as above is divided by the total run.

Weighted average (CaO) =

Run of 1 st sample* CaO % + Run of 2 nd sample* CaO % + Run of 3 rd sample* CaO %...... total run of all samples

The chemical analysis results are tabulated with litho logs and appended with the report as ( annexure I,Table 2 to 10 ).

______o0o______

12 CHAPTER IV

CHEMICAL ANALYSIS AND RESOURCE ESTIMATION

The core obtained through drilling was studied and logging was done (borehole logs appended as annexure-1, Table 2 to 10 .Core samples were prepared as per their physical appearance and similar runs in physical appearance were clubbed together to make one sample. A sum total of 71 core samples, after proper preparation were sent to departmental laboratory, Jabalpur for chemical analysis. Coralline Limestone generally occurs as a capping over the Nodular Limestone. Nodular limestone is light grey to dark grey to pink, fine grained and argillaceous in nature. Its thickness varies from 3 m. to 8 m. On weathering it breaks into nodules ranging in size from a few centimeters to 20 cm. Physically Coralline Limestone is hard, compact and yellowish brown to reddish brown in color. It exhibits beautiful current bedding. Its thickness varies from 1 m. to 5 m.

To ascertain the authenticity of chemical analysis no check analysis had been done. Weighted average percentage were computed by multiplying the run of individual sample drawn from a borehole with its respective oxide percentage and the sum of all such values obtained as above is divided by the total run.

Weighted average (CaO) =

Run of 1 st sample* CaO % + Run of 2 nd sample* CaO % + Run of 3 rd sample* CaO %...... total run of all samples

The chemical analysis results are tabulated with litho logs and appended with the report.

Chemical analysis of the core samples obtained through drilling revealed that, coralline limestone have comparatively high CaO percentage than nodular limestone, but overall, there is no frequent variation in chemical composition between the two and have average CaO content is 48.57% and silica content below the tolerable limit with

13 an average of 7.50 %. The variations in chemical constituents in all the boreholes are tabulated along with litho logs.

Resources are estimated by implying area of influence method. In this method the area of influence of each borehole is determined by putting the each borehole point in the center of polygon (PLATE-8) and for computing resources, area of each polygon is multiplied by the thickness of limestone in each borehole with the specific gravity. The area of influence method is preferred because the deposit is tabular body & there are about 09 no. of boreholes not arranged in systematic grid pattern.

The total area of proposed block is 66.69 hectares including 47.63 hectares mineralized and 19.06 hectare restricted area. (PLATE- 9) . Out of 09 boreholes drilled 08 are lying within the available area of proposed block, whereas 01 borehole lying within the restricted area. The present investigation, comes within general exploration stage (G-2), hence the estimated resource of the order of 15.28 million tones, classified as indicated resource with UNFC code of 332 having average 48.57 % CaO have been estimated and tabulated in Table No1.

Looking to the silica content in association with other essential elements the aforesaid deposits of limestone can be utilized in the manufacturing of cement.

14 CONCLUSION AND RECOMMENDATION

From the subsurface lithological data and chemical analysis of 71 core samples, obtained through drilling reveals that the proposed block of 47.63 hectares, having estimated resource of the order of 15.28 million tones, classified as indicated resource with UNFC code of 332. Limestone of the area has average 48.57% CaO, where as Silica & MgO contents are within the tolerable limit. Deposit has no or very thin overburden, continuous & sufficient thickness averaging 13.10 meter, without any intercalation of other litho units. Looking to the CaO content, in association with other essential elements the aforesaid deposits of limestone can be utilized in manufacturing of cement.

______o0o______

15 REFERENCES

1. N.D.Taparia, C.K.Doshi, M.P.Mishra (1980-82)-Mineral Inventory report of Dhar district, Directorate of Geology and Mining M.P. 2. K.K.Jaiswal & Dr.Narendra Joshi (1986-Reaaraisal of limestone deposits in Jirabad-Sitapuri area, district dhar m.p. Directorate of Geology and Mining M.P. 3. Report on investigation for limestone,around village Jirabad (1974). Directorate of Geology and Mining M.P. 4. A report on systematic geological mapping of Deccan trap complex in parts of Dhar district GSI (1985-86). 5. Roy Choudhary, M.K., (1955); Economic Geology and mineral resources of Madhya Bharat.Bull.Geol.Surv.Ind. 6. Vaghmarey,Dr.N.H.(2011-17) ; Report on Prospecting of limestone,around village Sitapuri-Deora-Udiyapura , Directorate of Geology and Mining M.P.

16 PERSONNEAL ENGAGED IN THE ASSIGNMENT

1. Savan Singh Chouhan, Assistant Geologist and Camp In charge - Geological mapping, supervision of drilling work, preparation of geological report.

2. Ravindra Parmar, Assistant Geologist -Geological mapping, supervision of drilling work, preparation of geological report.

3. Dr.N.H.Vaghmarey, Assistant Geologist– Technical supervision of the camp & preparation and finalization of report.

4. K.K.Raykhere,Deputy Director and Regional Head, administrative supervision of the camp.

5. Shri Ram Murti Singh, Topo surveyor, in charge surveying work.

6. Shri Anil Somkunwar,Driller Mechanic & In charge drill no. 53 .

7. Shri Lamu Singh Ureti,Helper drill no. 53.

8. Shri Preetam Singh Marawi, truck driver.

9. Shri Mukesh Barodiya, jeep Driver.

17 RESOURCE CALCULATION BY AREA OF INFLUENCE METHOD OF KOSDANA BLOCK 

Sr. No  Boreh Over Ͳ Area of  Thickn Sp.  Reserv Average Analysis Results in % Average Weighted average in % ole No  burde influence  ess of  Gra. ein  R2O3 CaO MgO SiO 2 Fe 2O3 Al 2O3 LOI CaO MgO SiO 2 Fe 2O3 Al 2O3 1 KD Ͳ1 0.00 56640.00 15.00 2.50 2.12 3.55 46.68 0.89 10.51 0.53 3.02 37.87 45.51 0.63 12.34 0.67 3.27 2 KD Ͳ2 0.60 37790.00 11.90 2.50 1.12 3.16 47.65 1.11 8.97 0.84 2.32 38.53 47.89 1.22 8.39 0.76 2.32 3 KD Ͳ3 0.00 59510.00 13.50 2.50 2.01 3.90 48.23 2.12 5.70 1.30 1.71 40.21 47.51 2.20 6.87 1.21 1.63 4 KD Ͳ4 0.00 38430.00 13.50 2.50 1.30 3.79 47.40 1.08 8.47 0.90 2.89 38.64 47.53 1.06 8.55 0.93 2.62 5 KD Ͳ5 0.00 27130.00 15.00 2.50 1.02 3.63 48.34 0.65 8.49 0.68 2.95 38.27 48.25 0.64 8.68 0.65 2.98 6 KD Ͳ6 0.00 95730.00 9.50 2.50 2.27 2.26 52.27 1.00 2.63 1.08 1.18 41.44 51.64 1.25 3.27 0.91 1.53 7 KD Ͳ7 1.00 48050.00 12.50 2.50 1.50 3.99 48.34 1.00 7.58 1.29 2.72 38.50 48.68 0.87 7.31 1.02 2.82 8 KD Ͳ8 3.00 48470.00 10.50 2.50 1.27 3.31 49.58 0.65 6.89 1.17 2.14 39.25 49.19 0.67 7.37 1.21 2.19 9 KD Ͳ9 0.00 64550.00 16.50 2.50 2.66 2.91 51.52 0.62 3.84 0.95 1.96 40.71 50.95 0.52 4.75 0.67 2.26 Average Total 0.51 476300.00 13.10 15.28 3.39 48.89 1.01 7.01 0.97 2.32 39.27 48.57 1.01 7.50 0.89 2.40

18 BOREHOLE NO. KD-1 Drill No: D/53 Date of Commencement: 13.04.2018 Reduce Level: 259 meter Date of completion: 17.04.2018 Total Depth: 19.50 meter Latitude : 22° 20'37.020" N Block Kosdana area Longitude : 74° 55'58.390" E

Depth (m) Run Core % o f Lithology Sample Analysis Results in %

From To Recovery No. R2O3 CaO MgO SiO 2 Fe 2O3 Al 2O3 LOI Total 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0.0 1.5 1.5 0.8 50% Coralline limestone KD-1/1 2.46 48.90 1.13 7.28 0.30 2.16 39.41 99.18 1.5 3.0 1.5 1.5 97% Coralline limestone KD-1/2 3.36 44.64 1.61 13.42 0.40 2.96 36.46 99.49 3.0 4.5 1.5 1.5 97% Coralline limestone KD-1/3 2.52 50.92 1.61 3.02 0.20 2.32 41.54 99.61 4.5 6.5 2.0 1.9 95% Coralline limestone KD-1/4 2.64 50.92 1.45 3.10 0.30 2.34 41.26 99.37 6.5 7.5 1.0 0.5 50% Nodular limestone KD-1/5 2.80 51.82 0.16 4.22 0.30 2.50 40.69 99.69 7.5 10.5 3.0 1.5 50% Nodular limestone KD-1/6 3.60 46.43 0.16 10.84 0.50 3.10 38.30 99.33 10.5 12.0 1.5 1.4 93% Nodular limestone KD-1/7 4.34 44.86 1.29 11.24 1.20 3.14 37.93 99.66 12.0 13.1 1.1 1.1 95% Nodular limestone KD-1/8 4.40 46.88 0.16 11.26 0.20 4.20 36.81 99.51 13.1 15.0 1.9 1.1 58% Nodular limestone KD-1/9 5.86 34.77 0.48 30.22 1.40 4.46 28.39 99.72 15.0 16.5 1.5 1.5 97% Sandstone KD-1/10 8.64 19.74 0.81 51.38 2.00 6.64 18.55 99.12 16.5 18.5 2.0 1.7 85% Sandstone KD-1/11 6.82 15.48 0.65 62.50 1.00 5.82 14.11 99.56 18.5 19.5 1.0 0.7 70% Sandstone KD-1/12 9.22 22.21 1.29 46.46 1.60 6.78 20.17 99.35 76.11 Average Analysis 3.55 46.68 0.89 10.51 0.53 3.02 37.87 99.51

Weighted average 45.51 0.63 12.34 0.67 3.27

19 BOREHOLE NO. KD-2 Drill No: D/53 Date of Commencement: 18.04.2018 Reduce Level: 256 meter Date of completion: 22.04.2018 Total Depth: 24.50 meter Latitude : 22° 20'37.170" N Block Kosdana area Longitude : 74° 56'04.480" E

Depth (m) Run Core % o f Lithology Sample Analysis Results in %

From To Recovery No. R2O3 CaO MgO SiO 2 Fe 2O3 Al 2O3 LOI Total 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0.0 0.6 0.6 0.0 0% Soil 0.00 0.6 1.5 0.9 0.7 80% Coralline limestone KD-2/1 2.08 50.92 0.65 5.10 0.90 1.18 40.45 0.00 1.5 3.0 1.5 1.2 81% Coralline limestone KD-2/2 2.40 48.23 0.48 9.96 0.80 1.60 38.29 0.00 3.0 4.5 1.5 1.3 87% Coralline limestone KD-2/3 2.54 52.49 0.16 2.88 0.90 1.64 41.32 0.00 4.5 7.5 3.0 1.2 40% Nodular limestone KD-2/4 1.92 50.02 1.29 5.40 0.50 1.42 40.84 99.47 7.5 10.5 3.0 2.7 90% Nodular limestone KD-2/5 4.24 45.54 1.94 10.16 0.70 3.54 37.70 99.58 10.5 11.5 1.0 1.0 100% Clay KD-2/6 11.98 23.10 1.13 41.68 2.80 9.18 21.44 99.33 11.5 12.5 1.0 0.9 90% Nodular limestone KD-2/7 4.20 40.15 2.10 19.64 1.00 3.20 33.35 99.44 12.5 13.5 1.0 1.0 100% Nodular limestone KD-2/8 4.74 46.21 1.13 9.68 1.10 3.64 37.77 99.53 13.5 14.5 1.0 1.0 100% Shale KD-2/9 9.12 19.29 1.45 52.06 2.00 7.12 17.81 99.73 14.5 16.5 2.0 1.6 78% Shale KD-2/10 6.20 15.25 1.45 62.02 2.30 3.90 14.65 99.57 16.5 19.5 3.0 2.3 77% Shale KD-2/11 12.66 17.95 1.13 50.98 2.50 10.16 16.51 99.23 19.5 22.6 3.1 1.5 50% Shale KD-2/12 10.62 11.44 1.94 63.30 2.30 8.32 12.41 99.71 22.6 24.5 2.0 1.3 67% Shale 83.50 Average Analysis 3.16 47.65 1.11 8.97 0.84 2.32 38.53

Weighted average 47.89 1.22 8.39 0.76 2.32

20 BOREHOLE NO. KD-3 Drill No: D/53 Date of Commencement: 23.04.2018 Reduce Level: 251 meter Date of completion: 30.04.2018 Total Depth: 17.00 meter Latitude : 22° 20'43.310" N Block Kosdana area Longitude : 74° 56'05.380" E

Depth (m) Run Core % o f Lithology Sample Analysis Results in %

From To Recovery No. R2O3 CaO MgO SiO 2 Fe 2O3 Al 2O3 LOI Total 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0.0 1.5 1.5 0.6 40% Coralline limestone KD-3/1 2.80 50.92 0.97 3.68 1.60 1.20 40.81 99.18 1.5 3.0 1.5 1.4 91% Coralline limestone KD-3/2 3.68 48.90 2.74 2.72 1.60 2.08 41.20 99.24 3.0 4.5 1.5 1.2 80% Coralline limestone KD-3/3 3.50 50.70 1.29 2.78 1.60 1.90 40.99 99.26 4.5 7.5 3.0 1.0 34% Nodular limestone KD-3/4 2.98 44.86 4.84 5.68 1.10 1.88 40.74 99.10 7.5 9.0 1.5 0.6 40% Nodular limestone KD-3/5 2.88 47.33 1.77 8.36 0.90 1.98 39.18 99.52 9.0 13.5 4.5 0.0 0% Marl (Sludge collected ) KD-3/6 7.56 46.66 1.13 10.98 1.00 1.24 38.33 99.34 13.5 16.5 3.0 1.2 40% Shale KD-3/7 8.02 21.53 1.13 48.94 1.30 6.26 20.05 99.21 16.5 17.0 0.5 0.4 70% Shale KD-3/8 8.02 20.19 1.77 50.92 1.40 6.62 18.65 99.55 30.63 Average Analysis 3.90 48.23 2.12 5.70 1.30 1.71 40.21

Weighted average 47.51 2.20 6.87 1.21 1.63

21