Cite this article:
Kuity and Shrivastava (1991). A study on the Pegmatites of Tongpal Area, Bastar District, M.P. Journal of Ravishankar University (Part-B: Science), 4(1), pp.61-66.
Journal
of Ravishankar University Vol. 4-5
No. B (Science) 1991-92 pp. 61-66
ISSN 0970 5910
A study on the Pegmatites of Tongpal Area, Bastar District, M.P.
D.P.
Kuity and S.K. Shrivastava
School
of Studies in Geology, Pt. Ravishankar Shukla University, Raipur 492010
Ms: Received 16.4.90; Revised
25.7.90.
Abstract. The pegmatites of Tongpal area are mostly
barren and highly weathered. Four zones have been recognized. Vein bodies commonly
have discordant
relationship and show pinch and swell structures. The contact between pegmatite
and host rock i1S
more or less sharp. Deformational effects have been recorded mainly in the
quartz, felspar and muscovite. Myrmekite is rare but vein and patch type of perthites
are common. Wall zone of pegmatites comprises of common minerals with some muscovite
and tourmaline; lepidolite, muscovite and cassiterite are main constituents of inter·
mediate zone. The present study reveals that these pegmatites are of magmatic origin.
Key words: Pegmatite; Genesis.
NOTE:
Full version of this manuscript is available in PDF.