Petrographic evaluation of the coal seams from Gundala area, Godavari Valley Coalfield, Andhra Pradesh, India

Omprakash S. Sarate; M. Basava Chary

doi:10.54991/jop.2010.191

Authors

Omprakash S. Sarate Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow 226007, India
M. Basava Chary Exploration Division, The Singareni Collieries Company Limited, Kothagudem 507101, Andhra Pradesh

DOI:

https://doi.org/10.54991/jop.2010.191

Keywords:

Maceral, Reflectance, Palaeoenvironment, Rank, Gundala, Godavari Valley Coalfield

Abstract

Gundala area represents the north-western extremity of Lingala-Koyagudem Coal Belt, Godavari Valley Coalfield. Andhra Pradesh. The sub-surface explorations from the virgin tracts of Gundala area revealed the existence often coal seams. Representative coal samples collected from seams III A, III (Top), III (Bottom), L-1, IV A, V(Top) and V(Bottom), pertaining to Bore Hole No. SGK-124 and III (Top), III (Bottom), L-1, IV A and V seams of Bore Hole No. SGK-128 have been critically analyzed for their maceral constitution and vitrinite reflectance measurements to understand the quality, rank, depositional environment, besides the economic and coal bed methane potentialities.

Based on the ternary mineral matter free (m. m. f.) maceral plotting, it has been inferred that, various coal seams intersected in Gundala area, in general contain mixed type of coal, barring V Top (Bore hole No. SGK-124) and III Top (Bore hole No. SGK-128) seams, which contain vitric type of coal. However, liptinite rich coal has been recorded from III Bottom seam of Bore Hole No. SGK-124. The vitrinite reflectance (Ro max %) has been recorded between 0.47 and 0.60%, which suggests that the coal has attained high volatile bituminous C stage of rank. Existence of low (8 to 21 %) frequency of mineral matter indicates the better quality of coal, which may find its commercial utility. The maceral constitution suggests that the coal deposits of this basin have evolved with prolonged spell of cold climatic condition, besides a few dry oxidizing spells. The slowly sinking basin has received continuous input of vegetal resource. The facies model based on maceral and mineral matter contents of these coals have shown the development of alternate oxic and anoxic moor at the depositional site.

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References

Bhaskar Rao V, Murty VSN & Venkateswarlu PD 1971. Gravity anomalies and tectonics on a part of Lower Gondwana Basin. Symposium on Gondwana Systems, Aligarh Muslim University: 148-156.

Chandra S & Chandra A 1987. Vegetational changes and their Qureshy climatic implications in coal-bearing Gondwana. Palaeobotanist 36: 74-86

Fox LC 1931. Coal in India - II. The Gondwana system and related formation. Memoir of the Geological Survey of India. 58:1-128.

ICCP (International Committee for Coal Petrology) 1963. International Handbook of Coal Petrology - Supplement to 2nd ed. Centre de Researche Scientifique. Qual. Antole Paris, unpaginated.

ICCP (International Committee for Coal Petrology) 1971. International Handbook of Coal Petrology - Supplement to 2nd ed. Centre de Researche Scientifique. Qual, Antole Paris, unpaginated.

ICCP (International Committee for Coal Petrology) 1975. International Handbook of Coal Petrology-Supplement to 2nd ed. Centre de Researche Scientifique. Qual. Antole Paris, unpaginated.

ICCP (International Committee for Coal Petrology) 1998. The new vitrinite classification (ICCP System, 1994). Fuel 77: 349-358.

ICCP (International Committee for Coal Petrology) 2001. The new inertinite classification (ICCP System, 1994). Fuel 80: 459-471.

King LC 1958. Basic palaeogeography of Gondwanaland during the deposition of Late Palaeozoic and Mesozoic eras. Quarterly Journal of the Geological Society of London 114: 47-77.

King W 1872a. Note on a new coalfield in south eastern part of the Hyderabad territory. Record of the Geological Survey of India 5:41-74.

King W 1872b. Note on possible field of coal measures in Godavari District, Madras Presidency. Record of the Geological Survey of India 5: 109-128.

King W 1881. The geology of the Pranhita-Godavari Valley. Memoir of the Geological Survey of India 18: 150-311.

Kräusel R 1961. Palaeobotanical evidence of climate. In: Nairn Aem (Editor) Descriptive Palaeoclimatology, Interscience: 227-254. New York.

Navale GKB, Misra BK & Anand-Prakash 1983. The microconstituents of Godavari coals, south India. International Journal of Coal Geology 3: 31-61.

Pareek HS, Deekshitulu MN & Ramana Murthy BV 1964. Petrology of Salarjung and Ross seam coals, Tandur area Godavari Valley Coalfield, Andhra Pradesh. Research Papers in Petrology by the officers of Geological Survey of India: 141-158.

Plumstead EP 1962. The Permo-Carboniferous coal measures of Transvaal, South Africa example of the constructing stratigraphy in the south and northern hemisphere. C. r. 4. Congr. Intern. Strat. Geol. Carbonifere. Maastricht., v. 2: 545-550.

Qureshy MN, Brahmam NK, Gadse SC & Mathur BK 1968. Gravity analysis and Godavari rift, India. America Bulletin. 79: 1221-1230.

Raja Rao CS 1982. Coal resources of Tamil Nadu, Andhra Pradesh, Orissa and Maharashtra. Bulletins of the Geological Survey of India, Series A., No. 45, Coalfields of India Volume II, Chapter III, Coalfields of Andhra Pradesh: Rizvi 9-40.

Ramanamurhty BV 1976. Report on the occurrence of a coal seam in the Kamthi Formation from Ramagundam area of the Godavari Valley Coalfield and its stratigraphic SCCL significance. Geological Survey of India. Miscellaneous Publication No. 45: 89-93.

Ramana Rao N 1962. Mikropetrographische Untersuchungen in den Gondwanokohlen von Tandur (India). Geol. Mitt. 3: 71-74.

Ramana Rao N 1965. Chemical characteristics of banded coal from Kothagudem Coalfield, Andhra Pradesh, India. Neues Jahrb. Geol. Palaentol., Monatsh., v. 1: 30-35.

Rao PV 1971. Godavari Valley Coalfield. In: Coal Resources of India. Memoir of the Geological Survey of India 88:335- 348.

Rizvi KS & Ramana Rao N 1969. Nature and distribution of resins in King Seam, Kothagudem coalfields, Andhra Pradesh. Proceedings of the National Institute of Sciences of India, 35A (Supplementary Volume), v. 2: 210-215.

SCCL. The Singareni Collieries Company Limited, Kothagudem, Khammam District, Andhra Pradesh.

Stach E, Mackowsky M-TH, Teichmüller M, Taylor GH, Chandra D & Teichmüller R 1982. Stach's Textbook of Coal Petrology, 3rd ed. Gebrüder Borntraeger, Berlin, Stuttgard, 535pp.

Singh MP & Singh PK 1996. Petrographic characterization and evolution of the Permian coal deposits of the Rajmahal Basin, Bihar. International Journal of Coal Geology 29: 93- 118.