Mineral Resources Department, Government of Madhya Pradesh
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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.