Geology of the Cuddapah Basin and its lithostratigraphy. (a) Sketch geological map of the Cudddaph Basin showing the sub-basins, and the boundary thrusts of . Proterozoic Cuddapah basin, on the eastern margin of the Dharwar craton is an intracratonic basin of the Indian shield (Fig. 1). The Eastern Ghats mobile belt. The Cuddapah Basin in Andhra Pradesh is a remarkable tectonic and orogenic belt of the unfossiliferous Precambrian rocks of Peninsular India. The paper.
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Cuddapah Basin | NDR – National Data Repository India
Felsic volcanics and tuffs are intercalated with sediments at many horizons. A giant basic dyke swarm underlies the basin in the west from Chittoor in the south to Mahbubnagar in the north.
Cuddapah Basin Basin Introduction: Karanth Endowment Lecture T. Suryaprakash Rao Endowment Lecture K. This is further complicated by cuddapan major domal upwarp across the middle of the basin marked by monocjinal flexures of the Kurnool strata in Gani Kalawa area; culminations and depressions at Jammalamadugu, Giddaluru and Srisailam cyddapah Eshwarakupam dome of the lower Cuddapahs in the ciddapah part of the Nallamalai hills; and granite domes of Vinukonda area in the north-east extremity.
The eastern half of the Cuddapah basin is occupied by the Nalamallai fold belt consisting of upper Cuddapah sediments. Future Challenges in Earth This site is best viewed using current versions of Firefox v.
Nallamalai fold belt is demarcated from the undeformed western sub-basins by the prominent fault lineament called the Rudravaram Line along which cleavage begins to develop in the Cuddapah sediments, which become intensely deformed towards the boundary thrust in the east. The paper reviews the stratigraphy and structure of the rocks of the Cuddapah System and Kurnool Series cuddapwh originally proposed by King and gives the author’s conclusions on the detailed structure and tectonics of the Basin.
The crescent shaped, easterly concave and N-S trending Cuddapah basin Fig.
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Srisailam sub-basin contains upper Cuddapah sediments and Palnad sub-basin exposes only the younger Kurnool sequence. The arcuate eastern margin is marked by a prominent boundary thrust, which is parallel to the Nellore schist belt, Eastern Ghats mobile belt and the East Coast.
Muthuswami Memorial Lecture C. Gupta Gold Medal L.
Cuddapah basin is characterized by quartzite-carbonate-shale cycles having an aggregate thickness that is estimated to vary between 6 and 12 km. The basin extends for a length of about km along the arcuate eastern margin with a mean width of km, and is the second largest Purana basin of Penninsular India, after the great Vindhayan basin.
The Cuddapah Basin in Andhra Pradesh is a remarkable tectonic and orogenic belt of the unfossiliferous Precambrian rocks of Peninsular India. Email this article Login required. Prahalad Rao Memorial Lecture Dr. The arcuate north, south and western boundary of the Cuddapah basin marks the profound uncomformity called Eparchaean Unconformity in early literature on basement granites enclosing the Eastern greenstone belts in Kadiri, Veligallu and Tsundupalle in the south, and Raichur, Gadwal and Peddavuru in the north.
Email the author Login required. Vaidyanadhan Award Endowment Lecture C. Sawkar endowment for Teachers training V. The relation of the structural elements to the localization of mineral deposits in the Cuddapah Basin is discussed and the necessity for their precise interpretation for exploring the depth extension of the ore mineralization is stressed.
Mahadevan Endowment Lecture R. The Papaghni and Kurnool sub-basins are geographically interlinked, but were sites of deposition at different times, the Papaghni sub-basin containing lower Cuddapah sediments, and the Kurnool sub-basin containing the younger Kurnool sediments that overlie the Cuddapah sequence with a major unconformity.
The basin is well known for its mineral potential in the form of limestones and dolomites, bedded and vein barites, chrysotile asbestos and steatite, besides occurrences of base metals, diamond, phosphorite, uranium and abundant building and ornamental stones.
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The western half of the basin is undeformed and consists of four sub-basins, the Papaghni, Kurnool, Srisailam and Palnad. A north-plunging low-amplitude asymmetrical synclinorium having a gently dipping western limb and intensely folded, overfolded and thrusted eastern limb is the major structural element.
Wadia Endowment Lecture G. Progress Report of G. Naqvi Gold Medal K. The early sediments of the basin are interspersed with basic volcanics and sills.
Cuddapah Basin, South India
Symposium on the Cuddapah Basin and its Equivalents. The author recommends further detailed structural mapping, especially in the eastern half of the basin, for solving the unsolved problems in the Cuddapah stratigraphy and structure. How to cite item.