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Singh, Alpana
- Rank Evaluation of the Neyveli Lignite Deposit on the Basis of Reflectance Parameter
Abstract Views :192 |
PDF Views:1
Authors
Alpana Singh
1,
D. B. Singh
1
Affiliations
1 Birbal Sahni Institute of Palaeobotany, GPO Box 106, Lucknow 226001, IN
1 Birbal Sahni Institute of Palaeobotany, GPO Box 106, Lucknow 226001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 44, No 4 (1994), Pagination: 391-397Abstract
The Neyveli field is well known for Tertiary lignite deposits in India. The reflectance of organic constituents (humioite macerals) has been measured to find out organic maturation level (rank) of the main lignite seam lying either at same time level or at different time levels in space. The deposits are of sub-bituminous C stage (ASTM) with the mean refectance (Ro max. in oil) range from 0.34 to 0.42% (average 0.39%). Evidences from rank study indicate that the quality of lignite deteriorates towards southern part of the field.Keywords
Lignite, Neyveli, Tamil Nadu, Economic Geology, Energy Resources.
- International Seminar on Coal Science and Technology Emerging Global Dimensions (Global Coal-2005)
Abstract Views :175 |
PDF Views:113
Authors
Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow-226 007, IN
2 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow-226 007
3 Central Fuel Research Institute, P O Jealgora, Dhanbad-828 108, IN
1 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow-226 007, IN
2 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow-226 007
3 Central Fuel Research Institute, P O Jealgora, Dhanbad-828 108, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 67, No 2 (2006), Pagination: 264-269Abstract
No Abstract.Full Text
- Petrology of Panandhro Lignite Deposit, Gujarat in Relation to Palaeodepositional Condition
Abstract Views :206 |
PDF Views:2
Authors
Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow - 226 007, IN
1 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow - 226 007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 66, No 3 (2005), Pagination: 334-344Abstract
Petrological investigations on Early Eocene lignite from two mine sections of Block-1 in Panandhro Lignite field, under both normal incident (white) and fluorescence (blue light excitation) modes, reveal that deposit is rich in maceral huminite content with sub-Ordinate amount of liptinite and low inertinite contents. The maceral composition indicates that sub-Bituminous C lignites in both the mine sections are more or less similar with minor differences. Gelification and Tissue Preservation Indices suggest the deposition of lignite in lower delta plain environment in lagoonal conditions.Keywords
Petrology, Maceral, Palaeodepositional Environment, Early Eocene, Panandhro Lignite, Gujarat.- National Seminar on Coal Bed Methane: Its Present Status and Future Prospects in India
Abstract Views :180 |
PDF Views:132
Authors
Affiliations
1 Birbal Sahni Institute of Palaeabotany 53 University Road, Lucknow - 226 007, IN
1 Birbal Sahni Institute of Palaeabotany 53 University Road, Lucknow - 226 007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 63, No 4 (2004), Pagination: 460-463Abstract
No Abstract.Full Text
- Rank Assessment of Panandhro Lignite Deposit, Kutch Basin, Gujarat
Abstract Views :163 |
PDF Views:2
Authors
Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow-226 007, IN
1 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow-226 007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 59, No 1 (2002), Pagination: 69-77Abstract
Rank of Panandhro lignite, the second largest lignite deposit in India, has been determined by reflectance measurement on maceral huminite (ulminite). The mean reflectance (Ro max.) ranges from 0.37 to 0.42% (average 0.40%) and indicates that the lignite has attained Sub-bituminous C-B Stage (ASTM). Rank characterization of lignite suggests its utility for upgrading purposes.Keywords
Reflectance Measurement, Lignite, Eocene, Tertiary, Panandhro, Kutch, Gujarat.- Petrographic Characterization of Khadsaliya Lignites, Bhavnagar District, Gujarat
Abstract Views :196 |
PDF Views:0
Authors
Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow - 226 007, IN
1 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow - 226 007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 76, No 1 (2010), Pagination: 40-46Abstract
The petrological studies on Khadsaliya lignites from Bhavnagar district have been carried out for their microconstituent's characterization. Quantitative estimation of macerals reveal, due to high amount of macerals of huminite group, that this lignite deposits has formed from forest dominated vegetation in a fast subsiding basin, experiencing almost uniform environmental conditions, with slight intermittent fluctuations. The rank based on Ro max % values indicates that lignites are less mature and have not reached the sub-bituminous stage of coalification as those of the lignites from Panandhro (Gujarat) and Neyveli (Tamil Nadu) fields. High pyrite content in the Khadsaliya lignite makes it not much suitable for combustion purpose.Keywords
Maceral, Maturation, Palaeodeposition, Khadsaliya Lignite, Cenozoic, Gujarat.- Petrographic and Depositional Characteristics of Tadkeshwar Lignite Deposits (Cambay Basin), Gujarat
Abstract Views :798 |
PDF Views:0
Authors
Affiliations
1 Organic Petrology Group, Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow - 226 007, IN
2 Department of Geology, Kurukshetra University, Kurukshetra - 136 119, IN
1 Organic Petrology Group, Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow - 226 007, IN
2 Department of Geology, Kurukshetra University, Kurukshetra - 136 119, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 80, No 3 (2012), Pagination: 329-340Abstract
Tadkeshwar lignite deposits are one of the important Lower Tertiary lignite deposits of Cambay Basin, Gujarat. These lignites are rich in huminite macerals followed by liptinite and inertinite with moderate to high proportions of associated mineral matter. Under fluorescence mode these are found to be rich in liptinite macerals, in particular the liptodetrinite and resinite. The type of huminite suggests that the lignite is formed from mixed vegetal source, i.e. woody forest vegetation and herbs, shrubs. The composition of macerals indicates the deposition of lignite in sub-aqueous condition in wet-reducing environment with intermittent exposure and subsidence of the peat surface. The rank of the Main and the Leader seams, determined through reflectance measurement, indicate that the lignite is less mature. The considerable amount of perhydrous huminite may have contributed to the lower reflectance values in some of the samples. Low rank and appreciable amount of mineral matter make the lignite suitable for its utilization in thermal power plants, however when upgraded or mixed with better quality coals it can be used for other industries.Keywords
Maceral, Rank, Petrology, Tadkeshwar Lignite, Cenozoic, Cambay Basin, Gujarat.References
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