Skip to main content
SpringerLink
Log in

Structure of Charnockitic basement in a part of the Krishna-Godavari basin, Andhra Pradesh

  • Published:
Journal of Earth System Science Aims and scope Submit manuscript

    We’re sorry, something doesn't seem to be working properly.

    Please try refreshing the page. If that doesn't work, please contact support so we can address the problem.

Abstract

A regional magnetic survey was carried out over an area of 8000 km2 in Godavari districts of Andhra Pradesh, India, which is covered by the rocks of Eastern Ghat Mobile Belt (EGMB)viz., the Khondalitic series and Charnockites in the northern half and Permian to Mesozoic and Cenozoic sediments in the southern half, and forms a part of the Krishna-Godavari (K-G) basin. The survey brought out a strong NE-SW trending anomaly in the area covered by the rocks of Eastern Ghat Mobile Belt (EGMB), and a mild ENE-WSW trending anomaly in the area covered by the sediments of the Krishna-Godavari (K-G) basin. The NE-SW trending anomaly in the northern half could be attributed to the exposed/near surface Charnockite basement that has come closer to the surface as a result of Eastern Ghat Mobile Belt (EGMB) tectonics. Explanation of the mild ENE-WSW trending anomaly over the sediments of the Krishna-Godavari (K-G) basin required a faulted magnetic basement at depth downthrown towards the south. It is therefore concluded that the Charnockitic basement together with the Khondalite group of rocks which are folded and faulted during the different phases of tectonics of Eastern Ghat Mobile Belt (EGMB) extend into the Krishna-Godavari (K-G) basin and further, were involved in faulting during the phases of formation and sedimentation in the Krishna-Godavari (K-G) basin.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Chetty T R K and Murthy D S N 1998 Regional tectonic framework of the Eastern Ghat Mobile Belt: A new interpretation; In: Eastern Ghat Mobile Belt,Geol. Surv. India, Spec. Publ. 44 39–50.

    Google Scholar 

  • Kaila K L, Murthy P R K, Rao V K and Venkateswara Rao N 1990 Deep Seismic Sounding in the Godavari graben and Godavari (coastal) India;Tectonophys. 173 307–317.

    Article  Google Scholar 

  • Kaila K L, Tewari H C and Mall D M 1987a Crustal structure and delineation of Gondawana basin in the Mahanadi delta area, India from deep seismic sounding;J. Geol. Soc. India 29 293–308.

    Google Scholar 

  • Kaila K L, Tewari H C, Roy Chowdhury K, Rao V K, Sridhar A R and Mall D M 1987b Crustal structure of the northern part of the Proterozoic Cuddapah basin of India from deep seismic sounding and gravity data; In: Seismic studies of the continental lithosphere (eds) Asano S and Mooney W DTectonophys. 140 1–12.

  • Kamaraju A V V S, Man Mohan M, Rao M R R, Powal D S and Yalamarty S S 1998 Mapping of basalt as an effective guide for the exploration of cretaceous hydrocarbon prospects in the north of Matyapuri fault in Krishna-Godavari basin;Bulletin of the ONGC Ltd. 35 195–204.

    Google Scholar 

  • Narayana Swamy S 1975 Proposal for Charnockites-Khondalite system in the Archaean shield of peninsular India;Geol. Soc. India Misc. Publ. 23 1–16.

    Google Scholar 

  • Prabhakar K N and Zutshi P L 1993 Evolution of southern part of Indian East Coast basins;J. Geol. Soc. India 41 215–230.

    Google Scholar 

  • Radhakrishna Murthy I V 1998 Gravity and magnetic interpretation in exploration geophysics;Geol. Soc. India Memoir 40 356.

    Google Scholar 

  • Radhakrishna Murthy I V and Rama Rao P 2001 Magnetic anomalies and basement structure around Visakhapatnam, Vizianagaram and Srikakulam districts of Andhra Pradesh;Gondwana Res. 4 443–454.

    Article  Google Scholar 

  • Ramakrishnan M, Nanda J K and Augustine P F 1998 Geological evolution of the Proterozoic Eastern Ghat Mobile Belt;Geol. Surv. India Spec. Publ. 44 1–21.

    Google Scholar 

  • Ramamohana Rao T, Venkateswara Rao Y, Prased G J S and Thirumala Rao P 1996 Tectonics of Chintalapudi and the adjoining sub-surface of Gondawana of Godavari valley and the East Coast of India;Proceedings, Ninth International Gondawava Symposia Oxford & IBH.2 755-781.

  • Ramam P K and Murthy V N 1997 Geology of Andhra Pradesh, Geological Society of India, Bangalore, India.

    Google Scholar 

  • Rao G N 2001 Sedimentation, stratigraphy and petroleum potential of Krishna-Godavari basin, East Coast of India;AAPG Bulletin 85 1623–1643.

    Google Scholar 

  • Sarkar S N 1980 Present status of Precambrian stratigraphy and geochronology of Peninsular India — a review;Indian J. Earth. Sci. 7 12–16.

    Google Scholar 

  • Suryabhanu K and Murthy B G K 1982 Geophysical studies for manganese occurrence in Gharbham and adjoining areas, Visakhaptnam district, Andhra Pradesh, In:Proc. Vol (Unpubl)workshop on “Geoscientific aspects of Eastern Ghat Mobile Ghats”, Geology Department, Andhra University, Visakhapatnam.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Geophysics, Andhra University, 530 003, Visakhapatnam, India

    I. V. Radhakrishna Murthy & S. Bangaru Babu

Authors
  1. I. V. Radhakrishna Murthy
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. S. Bangaru Babu
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Radhakrishna Murthy, I.V., Bangaru Babu, S. Structure of Charnockitic basement in a part of the Krishna-Godavari basin, Andhra Pradesh. J Earth Syst Sci 115, 387–393 (2006). https://doi.org/10.1007/BF02702867

Download citation

  • Revised:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02702867

Keywords

Search

Navigation