The microconstituents of Godavari coals, South India

Navale, G. K. B.; Misra, Basant K.; Anand-Prakash,

doi:10.1016/0166-5162(83)90012-5

Cited by 15 publications

(5 citation statements)

References 2 publications

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“…Tiwari and Moiz (1971) have described five new genera of miospores from the coal• bearing horizons of the Godavari Graben. Recently, Navale, Misra and Anand•Prakash (1983) have also studied the petrographic constituents of the working coal seams of the Godavari Graben. Although a number of coal seams have been proved in different areas of the Godavari Basin, little attempt has been done to correlate them.…”

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Palynological correlation of coal seams in Godavari Graben, Andhra Pradesh, India

Srivastava¹

1986

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The palynological study of various coal seams from Yellandu, Kothagudem, Belampalli, Ramakrishnapuram and Ramagundam coalfields of Godavari Graben has been done. The distributional pattern of various palyno-taxa has suggested the occurrence of six miospore assemblages. Miospore Assemblage E is marked by the association of Parasaccites and Scheuringipollenites. Assemblage D is characterised by the dominance of Brevitriletes. In assemblages C1, C2 and C3, Brevitriletes is associated with Hennellysporites. Indotriradites, although rare, occurs only in this assemblage. Horriditriletes and Latosporites characterise Assemblage B in association with Brevitriletes Primuspollenites gains significance only at this stage of palynofloral succession. In the youngest Assemblage A all the triletes decrease appreciably giving way to nonstriate-disaccates, Scheuringipollenites, so as to take up the dominance. The sporological succession shows only one change after Assemblage E (Upper Karharbari) was deposited. Miospore assemblages D to A represent the Lower Barakar palynoflora.

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Palynological correlation of coal seams in Godavari Graben, Andhra Pradesh, India

Srivastava¹

1986

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“…The pioneering geological work has been done by King (1872King ( , 1872aKing ( , 1873King ( , 1877King ( , 1881, Blanford (1871Blanford ( , 1871a. The petrological contributions of Ramana Rao (1962, 1965, Ghosh (1962), Pareek et al (1964), Moiz and Ramana Rao (1976), Rizvi and Ramana Rao (1969) and Navale et al (1983) are mostly confined to Tandur, Ramagundam, Kothagudem and Belampalli areas of the Godavari valley. Sarate (1996Sarate ( , 1996aSarate ( , 1998Sarate ( , 1999Sarate ( , 2001Sarate ( and 2001a) carried out petrological study on different coal seams intersected from varies localities of the basin.…”

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Study of petrographic composition and depositional environment of the coals from Queen seam of Yellendu area, Godavari valley coalfield, Andhra Pradesh

Sarate¹

2010

J Geol Soc India

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The study of coal succession from bore hole No. Q-448 of Yellendu area of the Godavari valley coalfield, Andhra Pradesh reveals that the coals of Queen seam are high volatile bituminous C in rank and have vitrinite reflectance (R o max %) varying between of 0.52 and 0.62%. The petrographic constitution however, suggests that the depositional site appears to be a slowly sinking and tectonically controlled basin, having received continuous supply of vegetal matter rich resource at regular intervals. The formation of inertinite rich coal suggests, oxidising enviornment of deposition. The dominence of vitrinite and liptinite constituents in these coals postulates the existence of alternating cold and humid spells. The present study indicates that these coals originated under an alternate oxic and anoxic moor condition.

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“…S RAVANAPALLI area is situated in the south-eastern extremity of Belampalli Coalfield located in Telangana State. There exists skimpy information regarding the petrographic characteristics of the sub-surface coal seams of the Belampalli Coalfield, except for the petrographic contributions provided by Ramana Rao (1962), Pareek et al (1964), Moiz and Ramana Rao (1976), Navale et al (1983) and Sarate (2001). Significant petrographic research work has been carried out on the coal deposits of different Indian Gondwana Basins, e.g.…”

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confidence: 99%

Coal petrographic characteristics and depositional conditions of the subsurface Barakar Formation (Early Permian) in Belampalli Coalfield, Godavari Valley, Telangana

Sarate¹

2017

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The coal analytical studies have been taken up, to ascertain the rank on the basis of maceral composition and depositional environment of different seams namely Index, Index below top, Index below bottom, IA, I and the lowermost II (top section) intersected in Bore–hole No. SBS–182, from Sravanapalli area. The random vitrinite reflectance (Ro mean %) study of coal from Index and Index below bottom seams ranges between 0.61% and 0.63%, whereas IA and Seam I have shown lower reflectance which ranges between 0.52% and 0.54%. Thus, all these seams have attained high volatile bituminous C stage of rank. However, III (top section) seam has shown low reflectance (0.45%–0.46%), which indicates attainment of Sub–bituminous B stage. The coal maceral study has revealed that the Index, Index below Top, Index below Bottom seams contain vitric type of coal, whereas IA seam has vitric, fusic and mixed type of coal constitution. The lowermost III top and I seam, however, are represented by both vitric and fusic coal types. The facies study suggests that the vegetal resource of the Index, Index below top and Index below bottom seam has been accumulated during wet moor with intermittent moderate to high flooding. The resource for IA and III Top seam has been deposited during the prevalence of alternate oxic and anoxic moor conditions, which in due course of time changed to wet moor with intermittent moderate to high flooding whereas, I seam has witnessed wet moor with intermittent moderate to high flooding with shift to oxic (dry) moor with sudden high flooding. It has also been noticed that coal quality of III seam has shown deterioration towards the south–western direction of the Belampalli Township.

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The microconstituents of Godavari coals, South India

Cited by 15 publications

References 2 publications

Palynological correlation of coal seams in Godavari Graben, Andhra Pradesh, India

Palynological correlation of coal seams in Godavari Graben, Andhra Pradesh, India

Study of petrographic composition and depositional environment of the coals from Queen seam of Yellendu area, Godavari valley coalfield, Andhra Pradesh

Coal petrographic characteristics and depositional conditions of the subsurface Barakar Formation (Early Permian) in Belampalli Coalfield, Godavari Valley, Telangana

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