Gypsum-Jarosite Incrustation on Limestone: An Unusual Occurrence

Authors

  • K. H. Vora
     Geological Oceanography Division, NIO, Dona Paula, Goa
  • B. C. Raymahashay
     Department of Civil Engineering, Indian Institute of Technology, Kanpur-208016

Abstract

The joint planes of massive limestone at Sahasradhara, Dehra Dun have a thin crust containing jarosite with gypsum blades. This occurrence is different from the usual chemical weathering in a ferruginous environment. An evaluation of the chemistry of local river and groundwater suggests that these minerals form by evaporation in dry seasons.

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Issue

Volume 19, Issue 5, May 1978

Section

Research Notes

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Published

1978-05-01

How to Cite

Vora, K. H., & Raymahashay, B. C. (1978). Gypsum-Jarosite Incrustation on Limestone: An Unusual Occurrence. Journal of Geological Society of India, 19(5), 228–230. Retrieved from https://geosocindia.com/index.php/jgsi/article/view/64171

References

KASHKAY, Ch. M., BOROVOSKAYA, Yu. B. and BABAZADA, M. A., (1975) Determination of ΔG°f298 of synthetic jarosite and its sulfate analogues. Geochem. Internatl., v. 12, pp. 115-121.

MEHTA, D. R. S., NARAYANA MURTHY, B. R. and NARASIMHAN, A. J., (1959) High gradelimestone deposits, Dehradun-Mussoorie area, U.P. Bull. Geol. surv. India, Series A, no. 16.

PALACHE, C., BERMAN, H. and FRONDEL, C., (1961) Dana's System of Mineralogy, v. 2, p. 560, John Wiley & Sons Inc.

SMITH, C. H. and DREVER, J. I., (1976) Control on the chemistry of springs at Teels Marsh, Mineral Country, Nevada. Geochim. Cosmochim. Acta, v. 40, pp. 1081-1093.