Prof. Rajesh K. Srivastava

6th International
Dyke Conference

Prof. Rajesh
K. Srivastava

Prof. Rajesh K. Srivastava
Professor of Geology

Profile

B.Sc. Banaras Hindu University, 1980
M.Sc. Banaras Hindu University, 1982
Ph.D. Banaras Hindu University, 1988 on the topic “Geochemical Studies and Evolution of Alkaline Carbonatitic Complex of Ambadungar, District Baroda, Gujarat”
P.G.Diploma (Spectroscopy) Banaras Hindu University, 1984
Date of Birth: 30th June 1961

Courses Offered

UG: Igneous Petrology
PG: Igneous Petrology and Geochemistry

Contact

Home: +91 542 2570925
Office: +91 542 307311
Mobile: +91 9415812079
E-mail: rajeshgeolbhu@yahoo.com
rajeshgeolbhu@gmail.com

Corresponding Address

Official
Professor (Igneous Petrology & Geochemistry)
Department of Geology
Faculty of Science
Banaras Hindu University
Varanasi 221 005, INDIA

Residential Address
R-16, Hyderabad Colony
Banaras Hindu University
Varanasi 221 005, INDIA

Broad area of Specialization

Igneous Petrology and Geochemistry

Main area of Research Interest

Mantle Petrology through work on:
i. Precambrian Mafic Igneous Complexes, particularly dyke swarms and associated volcanics from the Bastar craton and Himalaya.
ii. Ultramafic - Alkaline - Carbonatite Complexes of western, southern, and northeastern India.
iii. Andaman Ophiolite suite.
iv. Lamprophyres, lamproites, and kimberlites of Mahakoshal supracrustal belt, Central India.

Significant contributions

The chemical make-up of the mantle, particularly below the continents, and the nature of mantle fluids are areas that are presently demanding a great deal of attention. Carbonatites form one group of rocks that have much to reveal about the chemical and physical evolution of the sub-continental upper mantle. Cabonatitic magmas as source of fluids, and carbonatites as repository of Nb, Sr, and REE, make them especially topical and relevant. Not only do such rocks provide a very interesting way of sampling the mantle but they also hold many clues to understand fluid migration and its evolution at both mantle and crustal levels. Geochemical investigations on alkaline and carbonatite igneous complexes from Gujarat, Assam, Meghalaya, and Tamil Nadu have been the main focus of my research. Recent work on the Early Cretaceous ultramafic-alkaline-carbonatite complexes of remote areas of Assam and Meghalaya has gained lots of attraction. The data generated on these complexes enabled to develop new concept about the origin of these rocks. Many scholars have worked on these complexes, particularly on Sung Valley complex, but all have suggested liquid immiscibility origin for carbonatite and associated rocks. New petrological, geochemical, and isotopic data uggest their origin from a primary carbonatite magma generated by the low-degree partial melting of a metasomatized mantle peridotite. We have also dated these complexes very precisely by U-Pb method using igneous minerals like zircon, baddeleyite, and perovskite, which suggest that these alkaline-carbonatite complexes are spatially and temporally associated to the Kerguelen plume activity.

Geochemical and petrological investigations of Precambrian mafic igneous rocks that are important component in establishing crustal evolution of Archaean craton have gained global significance in recent years. Detailed study of mafic dyke swarms also provides valuable information on the evolution of mantle. My self and my team have extensively studied Precambrian mafic dykes from the central Indian Bastar craton, particularly to get better insight of the composition of sub-continental lithosphere and correlating continental fragments of coeval age. We have identified distinctly three generations of mafic dyke swarms throughout the Precambrian time; two sub-alkaline tholeiites and one boninitic-like mafic rocks. Verities of Neoarchaean mafic volcanics, which includes siliceous high-Mg basalts (SHMB) and boninites, are also recognized. Both SHMB and boninites are reported for the first time from the Indian subcontinent but the discovery of boninite rocks from the Central India is certainly an important contribution to Indian Geology. This is because the majority of boninites occur in supra subduction zones and common in Phanerozoic but their possible occurrence in rift or continental environments and their emplacement in Precambrian terrain cannot be discounted. Considering these distinctive petrogenetic characteristics these rocks are considered to be of great importance to Archaean granite-greenstone terrains in identifying successions that might be analogous to modern successions developed in subduction setting. Recently, I have published a paper in Geochemical Journal in which it is suggeated that such boninitic magma are responsible for the genesis of Neoarchaean noritic intrusion reported world-wide. This is an important study in respect as it denotes magmatic event at Neoarchaean-Paleoproterozoic boundary (~2.5 Ga). It is suggested that all the three dyke swarms are derived from different magmas generated from deep heterogeneous mantle source.

I have also initiated work on the Andaman ophiolite suite (AOS) and Jungel alkali lamprophyres from Mahakoshal greenstone belt. These suites of rocks also provide valuable information on the mantle composition.

Ph. D. Guidance

Petrology and geochemistry of Precambrian mafic dykes of the southern Bastar region, Madhya Pradesh. Ph. D. degree awarded to Dr. Rahul Verma in 1998.
Petrology and geochemistry of Precambrian mafic rocks of the southern Bastar greenstone belt, Central India. Ph. D. awarded to Dr. R. K. Singh in 1999.
Petrology and geochemistry of the Early Cretaceous ultramafic-alkaline-carbonatite complexes from the Shillong Plateau, Northeastern India. Ph. D. awarded to Anup K. Sinha in 2002.
Petrology and Geochemistry of Precambrian mafic rocks from the southern Bastar: Implications for evolution of sub-continental lithosphere of central Indian craton. Mr. G. C. Gautam is working on this problem.

Research Projects Completed/On going

Funding Agency	Title of Research Project	Month/Year of Commencement	Month/Year of Completion
DST	Rare-earth elements and isotopic studies of carbonatitic central complexes related to Narmada rift Deccan trap province	July, 1991	June, 1993
DST	Precambrian mafic dykes and volcanics of the Bastar craton, Madhya Pradesh: implications for the growth and development of sub-continental lithosphere	June, 1996	November, 1999
CSIR	Petrology, geochemistry and genesis of the alkaline carbonatite complexes of Assam-Meghalaya plateau, Northestern India	February 2001	January 2004
UGC	Mafic-alkaline-carbonatite magmatism around Nongcharam-Swangkre area, East Garo Hills and West Khasi Hilla districts, Meghalaya, NE India	May 2001	April 2004
DST	Petrology and radioactive isotope systematic of Precambrian mafic igneous rocks from the southern Bastar: implication for evolution sub-continental lithosphere of central India craton	May 2004	April 2007
DST	Tectono-metamorphic and magmatic evolution of the Precambrian rocks along the Kmeng corridor of Arunanchal Himalaya	April 2006	March 2009
CSIR	Paleoproterozoic alkaline mafic-ultramafic lamprophyric rocks associated with Mahakoshal Supergroup belt, Central India: petrological, geochemical and tectonic significance	May 2006	April 2009

Distinctions/Awards/Achievements

1. 1989: ISCA Young Scientist Award by Indian Science Congress Association.
2. 1993-1995: Co-opted member of the Geological, Mining and Metallurgical Society of India.
3. 1994: BOYSCAST postdoctoral research fellowship by Department of Science and Technology to visit Portsmouth University, United Kingdom.
4. 1992-Contd.: Editor-in-Chief, Indian Journal of Geochemistry.
5. 2001: National Mineral Award by Ministry of Coal & Mines, Govt. of India.
6. 2004-2005: INSA Exchange Award, Nominated to visit Brazil under the bilateral exchange programme of INSA.
7. 2004-2007: Council Member of the Geological Society of India.
8. 2005-2008: Member of the Editorial Board of the Journal of Applied Geochemistry, Hyderabad.
9. 2005: Principal Convener 6th International Dyke Conference (IDC6). During the 5th International Dyke Conference, which was held in Rovaneimi, Finland during August-September 2005, I had proposed to hold IDC6 in India in 2010, which was accepted unanimously.
10. 2006-2009: Council Member of the Geological, Mining and Metallurgical Society of India.
11. 2006: Organized a DST sponsored Group Discussion Meeting on “Indian Dykes”, which had been held on 18th & 19th March 2006 at Department of Geology, Banaras Hindu University, Varanasi.

Visits Abroad

Adelaide and Canberra, Australia in September 1990 to attend 2nd International Dyke Conference and 7th Isotope Geology Conference respectively.
Sao Paulo, Brazil in September-October 1991 to attend Mafic Dyke Symposium.
Portsmouth, England between June and November 1994 to avail BOYSCAST Fellowship.
Jerusalem, Israel in September 1995 to attend 3rd International Dyke Conference.
Beijing, China in August 1996 to attend 30th IGC.
Kathmandu, Nepal in November 1997 to attend 2nd Nepal Geological Congress.
Perth, Australia in September 2001 to attend 4th International Archaean Symposium.
Florence, Italy in August 2004 to attend 32nd International Geological Congress.
Rovaneimi, Finland in August-September 2005 to attend 5th International Dyke Conference.

Important Publications (PDF file may be requested for SELECTED ARTICLES)

1.	Srivastava, Rajesh K. and Karkare, S. G. (1989). Sulphide mineralization around Ambadungar complex, district Baroda, Gujarat. Current Science, 58: 962-964.
2.	Karkare, S. G. and Srivastava, Rajesh K. (1990). Regional dyke swarms related to the Deccan Trap Alkaline Province, India. In: Mafic dykes and emplacement mechanism (Eds. Parker, Rickwood and Tucker), A.A.Balkema, Rotterdam: 335-347.
3.	Srivastava, Rajesh K. (1991). Petrochemistry and tectonic significance of mafic dykes from Kukshi, Madhya Pradesh, India. Proc. Int. Symp. mafic dykes (Eds. Teixeira, Ernesto and Oliveira), Sao Paulo, Brazil: 133-136.
4.	Karkare, S. G. and Srivastava, Rajesh K. (1993). A model for Narmada Rift Basin. In: Rifted Basins and Aulacogens (Eds. Casshyap, S. M. and others), Gyanodaya Prakashan, India: 234-240.
5.	Srivastava, Rajesh K. (1994). Petrology, petrochemistry and genesis of the Alkaline rocks associated with the Ambadungar Carbonatite Complex, Baroda district, Gujarat, India. J. Geol. Soc. India, 43: 23-39.
6.	Srivastava, Rajesh K. (1994). Petrochemistry of the Fenitized Sandstones from Ambadungar Carbonatite Complex, District Baroda, Gujarat. Indian J. Geol., 66: 39-44.
7.	Srivastava, Rajesh K. and Hall, R. P. (1995). Tectonic setting of Indian Carbonatites. In: Magmatism in Relation to Diverse Tectonic Settings (Eds. Srivastava, Rajesh K. and Chandra, R.), A. A. Balkema, Rotterdam: 135-154.
8.	Srivastava, Rajesh K., Hall, R. P., Verma, R. and Singh, R. K. (1996). Contrasting Precambrian Mafic Dykes of the Bastar craton, Central India: Petrological and geochemical characteristics. J. Geol. Soc. India, 48: 537-546.
9.	Srivastava, Rajesh K. and Taylor, L. A. (1996). Carbon- and Oxygen-Isotope variations in Indian Carbonatites. International Geology Review, 38: 419-429.
10.	Singh, R. K., Srivastava, Rajesh K. and Hsean, A. R. (1997). Petrology of the Precambrian Mafic Rocks of Katekalyan area, Bastar District, Madhya Pradesh, India. Gondwana Research, 1: 129-136.
11.	Srivastava, Rajesh K. (1997). Petrology, Geochemistry and Genesis of Rift-related Carbonatites of Ambadunagr, India. Mineralogy and Petrology, 61: 47-66. Request PDF
12.	Srivastava, Rajesh K. (1998). Petrology of the Proterozoic Alkaline Carbonatite Complex of Samalpatti, District Dharmapuri, Tamil Nadu. J. Geol. Soc. India, 51: 233-244.
13.	Srivastava, Rajesh K. and Verma, R. (1998). Precambrian basic magmatism of the southern Bastar craton, Central India. In: The Indian Precambrian (Ed. Paliwal, B. S.), Scientific Publ. (India): 409-416.
14.	Srivastava, Rajesh K. and Singh, R. K. (1999). Petrology and geochemistry of the Late Archaean siliceous high-magnesian basalts (SHMB) from Kaklur, southern Bastar craton, Central India. J. Geol. Soc. India, 53: 693-704.
15.	Srivastava, Rajesh K., Singh, R. K. and Verma, R. (2000). Juxtaposition of India and Antarctica during the Precambrian: inferences from geochemistry of mafic dykes. Gondwana Research, 3: 227-234. Request PDF
16.	Srivastava, Rajesh K. and Sahai, A. (2001). High-field strength element geochemistry of mafic intrusive rocks from the Bhagirathi and Yamuna valleys, Garhwal Himalaya, India. Gondwana Research, 4: 455-463. Request PDF
17.	Shastry, A., Srivastava, Rajesh K., Chandra, R. and Jenner, George A. (2001). Fe-Ti enriched mafic rocks from south Andaman ophiolite suite: implication of late stage liquid immiscibility. Current Science, 80(3): 453-454. Request PDF
18.	Srivastava, Rajesh K. and Singh, R. K. (2001). Petrology, tectonic setting, and genesis of early Precambrian mafic volcanics from the southern Bastar greenstone belt, central India. AGSO-Geoscience Australia Record, 2001/37, 196-198.
19.	Shastry, A., Srivastava, Rajesh K., Chandra, R. and Jenner, George A. (2002). Geochemical characteristics and genesis of oceanic plagiogranites associated with south Andaman ophiolites, India: a late stage silicate liquid immiscible product. J. Geol. Soc. India, 59: 233-241.
20.	Heaman, Larry M., Srivastava, Rajesh K. and Sinha, Anup K. (2002). A precise U-Pb zircon/baddeleyite age for the Jasra igneous complex, Karbi-Analong district, Assam, NE India. Current Science, 82: 744-748. Request PDF
21.	Srivastava, Rajesh K. and Singh, R. K. (2003). Geochemistry of high-Mg mafic dykes from the Bastar Craton: evidence of Late Archaean boninite-like rocks in an intracratonic setting. Current Science, 85: 808-812. Request PDF
22.	Srivastava, Rajesh K. and Singh, R. K. (2003). The Paleoproterozoic Dolerite Dyke Swarm of the Southern Bastar Craton, Central-East India: A supporting Evidence for the Columbia Supercontinent. Mem. Geol. Soc. India, 52: 163-177.
23.	Srivastava, Rajesh K. and Singh, R. K. (2003). Precambrian mafic magmatism in southern Bastar craton, Central India: present status and future perspective. Gondwana Geol. Mag. Spl. Vol., 7: 177-191.
24.	Srivastava, Rajesh K. and Sinha, Anup K. (2004). Early Cretaceous Sung Valley ultramafic-alkaline-carbonatite complex, Shillong Plateau, Northeastern India: petrological and genetic significance. Mineral. Petrol., 80: 241-263. Request PDF
25.	Srivastava, Rajesh K. and Sinha, Anup K. (2004). Geochemistry of Early Cretaceous Alkaline Ultramafic-Mafic Complex from Jasra, Karbi Anglong, Shillong Plateau, Northeastern India. Gondwana Research, 7: 549-561. Request PDF
26.	Srivastava, Rajesh K., Singh, R. K. and Verma, S. P. (2004). Neoarchaean mafic volcanic rocks from the southern Bastar greenstone belt, Central India: petrological and tectonic significance. Precambrian Research, 131: 305-322. Request PDF
27.	Srivastava, Rajesh K. and Singh, R. K. (2004). Trace element geochemistry and genesis of the Precambrian sub-alkaline mafic dykes from central India craton: evidence for mantle metasomatism. J. Asian Earth Sci., 23: 373-389. Request PDF
28.	Hsean, A. R., Karkare, S. G., Singh, R. K., Chandra, R. and Srivastava, Rajesh K. (2004). Petrochemistry of Precambrian granitoids of Katekalyan, Southern Bastar craton, Central India. J. Econ. Geol. & Georesources Management, 1 (2): 217-234.
29.	Srivastava, Rajesh K., R. Chandra and Shastry, A. (2004). High-Ti type N-MORB parentage of basalts from the South Andaman ophiolite suite, India. Earth Planet. Sci. (Proc. Indian Acad. Sci.), 113: 605-618. Request PDF
30.	Srivastava, Rajesh K. and Sinha, Anup K. (2004). Geochemistry and petrogenesis of early Cretaceous sub-alkaline mafic dykes from Swangkre-Rongmil, East Garo Hills, Shillong plateau, Northeast India. Earth Planet. Sci. (Proc. Indian Acad. Sci.), 113: 683-697. Request PDF
31.	Srivastava, Rajesh K., Anand Mohan and Cesar Fonseca Ferreira Filho (2005). Hot-fluid Driven Metasomatism of Samalpatti Carbonatites, South India: Evidence from Petrology, Mineral Chemistry, Trace Elements and Stable Isotope Compositions. Gondwana Research, 8: 77-85. Request PDF
32.	Srivastava, Rajesh K., Heaman, Larry M., Sinha, Anup K. and Shihua, S. (2005). Emplacement age and isotope geochemistry of Sung Valley Alkaline-Carbonatite complex, Shillong Plateau, Northeastern India: implications for primary carbonate melt and genesis of the associated silicate rocks. Lithos, 81: 33-54. Request PDF
33.	Srivastava, Rajesh K. (2005). Heterogeneous Precambrian mantle source: evidence from different mafic magmatisms in Central India. DST-DCS-News Letter, 15: 2-6.
34.	Srivastava, Rajesh K. (2005). Implication of high-field strength element geochemistry in altered igneous rocks: a case study from the Precambrian mafic dykes of southern Bastar craton, Central India. Indian J. Geology, 75 (2003): 72-88.
35.	Srivastava, Rajesh K. (2005).Geochemical characteristics of Precambrian high-magnesium mafic rocks in an intracratonic rift-setting, Bastar craton, central India. In: Antarctic Geoscience, Ocean-Atmosphere Interaction & Paleoclimatology (Eds. Rajan, S. and Pandey, P. C.), NCAOR, Goa: 263-282.
36.	Srivastava, Rajesh K. (2006). Geochemistry and Petrogenesis of Neoarchaean High-Mg Low-Ti Mafic Igneous Rocks in an Intracratonic Setting, Central India Craton: Evidence for Boninite Magmatism. Geochemical J., 40: 15-31. Request PDF
37.	Srivastava, Rajesh K. (2006) Distinct early Precambrian mafic dyke swarms, Central Indian Bastar craton: evidence of a heterogeneous mantle source. Accepted for IDC-5 Volume (Eds. Jouni Vuollo et al.), A.A. Balkema, Rotterdam (in press).
38.	Srivastava, Rajesh K. and N. V. Chalapathi Rao (2006). Petrology, geochemistry and tectonic significance of Paleoproterozoic alkaline lamprophyres from the Jungel Valley, Mahakoshal supracrustal belt, Central India. Mineralogy and Petrology (in press).
39.	Srivastava, Rajesh K. and Sinha, Anup K. (2006). Carbonatite and Silicate Rock Association: Constraints from the Early Cretaceous Ultrmafic-Mafic-Alkaline-Carbonatite Igneous Complexes from the Shillong Plateau, Northeastern India. Accepted for Proc. Vol. Igneous Petrology – Twenty-first Century Perspective (Eds. J. S. Ray).
40.	Srivastava, Rajesh K. and Gautam, G. C. (2006) Geochemistry of Distinct Mafic Intrusive Rocks from Darba-Kukanar and Kerlapal-Sukma-Mokhpal areas, Southern Bastar craton: Further data on the Early Precambrian Mafic Magmatism of Central India. J. Geol. Soc. India (Accepted).

Books

1.	Srivastava, Rajesh K. and Chandra, R. (1995). Magmatism in Relation to Diverse Tectonic Settings. Published by A. A. Balkema, Rotterdam, 472p
2.	Srivastava, Rajesh K. and Ahmad, T. (2007). Precambrian Mafic Magmatism – Indian Context. To be published by the Geological Society of India, Bangalore as a Memoir.