Special Issue "Recent Trends in Geological Researches"

A special issue of Journal of Geosciences and Geomatics

Deadline for manuscript submissions: (July 30, 2014)

Special Issue Editor(s)

Chief Guest Editor

Dr. Devananda Beura
P.G. Department of Geology, Utkal University, Bhubaneswar, Odisha, India
Email: debanandabeura@rediffmail.com

Special Issue Information

It’s my pleasure to have a editorial volume on ‘RECENT TRENDS IN GEOLOGICAL RESEARCHES’, which will contain papers from diversified research areas.

Keywods

  • Ore geology
  • Env. Geology
  • hydrogeology
  • disaster management

Published Papers

   
Abstract: Ground water is a scarce resource in most part of Odisha as 80 percent of its area is underlain by hard rocks. As the study area is drought prone most people depend on ground water for drinking and agriculture. Hence, constant monitoring and assessment of water resource is necessary. With this purpose the present study area Hial, a part of Bolangir district of Odisha, India is chosen. Water samples were collected from the study area for quality evaluation during pre monsoon period of 2010. They were analyzed for physical parameters such as pH, EC, TDS and chemical parameters such as Ca, Mg, Na, K, Cl, HCO3, CO3, SO4, F. Suitability of groundwater for purposes such as drinking, irrigation and industrial was evaluated following various classification schemes and water quality standards. The water quality study reveals that pH of the water varies from 7.23-8.35, EC ranges from 69.3-1345 µmho/cm, TDS values range from 238 to 777.3 mg/l, total alkalinity values range from 84-420 mg/l, total hardness values range from 88 to 452 mg/l. Analytical study of water samples reveals that calcium varies from 8 to 174.4 mg/l, magnesium varies from 2.9 to 78.1 mg/l, sodium varies from 9.4 to 176.5 mg/l, potassium varies from 0.1 to 12.5 mg/l, chloride values range from 8.5 to 195.68 mg/l, carbonate values range from 0 to 33.6 mg/l, bicarbonate values range from 82.96 to 512.4 mg/l, sulphate values range from 0 to 76 mg/l, fluoride values range from 0.25 to 2.8 mg/l in water of the area. Piper Trilinear plot shows most ground water samples as Mg-HCO3 and Ca-HCO3 type. From Richard’s salinity diagram it is observed that most of the samples are plotted in C3-S1 field indicating low Sodium Adsorption Ratio and high salinity hazard. The water chemistry of the area is controlled by lithology of the area.
Abstract: Water quality analysis in the Mahanga block of Cuttack district indicate that, ground water quality is controlled by natural geochemical processes such as mineral weathering, dissolution/precipitation reaction, ion-exchange process. The chemical parameters such as Ca, Mg, Na, K, Cl, HCO3, and SO4 of groundwater play a significant role in classifying and assessing water quality. With respect to drinking water quality in comparison to BIS (1991) standards, TDS, TA, TH, Ca, Mg, Cl, F, NO3 are found to exceed the highest desirable limits in some cases but not the maximum permissible limit. With respect to irrigation indices such as residual sodium carbonate (RSC), percent sodium (%Na), permeability index (PI), potential soil salinity (PSS), sodium adsorption ratio (SAR), the groundwater are suitable for irrigation purpose. The relative concentrations such as Ca/Mg, Na/Cl, Cl/(HCO3+CO3) and base exchange index are used to assess the salinity of groundwater in the study area.
Abstract: Three types of low-grade manganese ores belonging to the Pre-Cambrian age are found in the Bonai-Keonjhar belt of Odisha. Out of the siliceous, ferruginous and aluminous Mn-ores the later type was characterised mineralogically and subjected to different physical beneficiation methods such as gravity (heavy media separation, mineral separation and tabling) and magnetic separation. The results obtained for gravity separation was not very encouraging and the grade of Mn could not be improved beyond 30%. The magnetic separation method was quite useful and a product having only 23% Mn in the feed could be up-graded to more than 32% Mn. However, the increase in Mn-value is accompanied by concomitant rise in Fe value, which inhibits the direct use of the processed product but it can be suitably blended with low iron Mn-ores and finds good market value.
Abstract: Rocks rich in magnesium hold good prospect as substitute flux for dolomite and limestone and quartz in iron and steel industry. Our dependence on foreign imports, as far as raw materials like limestone or dolomite are concerned, has nonetheless eroded the competitive ability of Indian iron and steel. The quality of raw materials used determines to a large extent, the productivity and therefore utilisation of the capital assets in an integrated steel plant. Scarcity of metallurgical grade limestone and dolomite especially of blast furnace (B.F.) and steel melting shop (S.M.S.) grades have shifted focus to the quality and pricing of steel in India. The Boula-Nausahi Igneous Complex of Odisha consists of ultramafic suite that includes dunite-peridotite-pyroxenite-lherzolite and their altered product (serpentinite). These ultramafic rocks are enriched with high MgO and low SiO2 contents and very low Al2O3, Cr2O3 and alkalis contents.
Abstract: The Bonai-Keonjhar belt of Odisha is famous for its potential iron formation that lies in the western flank of the North Odisha Iron Ore Craton (NOIOC). This horse shoe shaped belt having two limbs form a distinct ‘U’-shaped pattern, which is considered as the youngest Iron Ore Group. Banded Iron Formation (BIF) of the Precambrian age occurs in huge amount in the belt comprising of alternate layers of iron bearing minerals and silica along with iron ores and associated rocks. The abundant lithomembers of the study area that comprise of banded hematite jasper, banded hematite quartzite, banded hematite chert, banded shale and ferruginous shale are un-metamorphosed and lack of any intrusive. The general structural disposition of the rocks of the belt is a synclinorium trending NNE-SSE direction having low plunge towards NNE. The rocks of the area are experienced with prolonged deformations correlated with iron ore orogeny and impact has been manifested in form wide range fold geometry. The structural disposition and pattern of the study area consist of three distinct types of folds, which represent deformation history of the area and individual geometric dissimilarity. One set of folds is found to be open upright folds of symmetric or asymmetric nature. The second set consists of tight isoclinal folds, which are horizontal or overturned. The third set comprises of more open folds with broad warps. Such folds of three generations have been superimposed to produce different types of interference patterns.
Figure of 8
Abstract: