The gold content of Deccan basalts Western Ghats, India

B. V. Oleinikov, A. F. Korobeinikov, O. V. Koroleva, P. Kirshnamurthy, A. Kumar, K. Gopalan

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Abstract

Sixty nine samples of Deccan basalt flows from the Western Ghats representing the Wai, Lonavala, and Kalsubai subgroups average 3.7 ppb of gold. Gold content shows limited variation from 3.0 to 5.8 ppb in 62 samples whereas they range from 1.4 to 2.7 ppb in 7 samples. Flows of the Wai subgroup show the maximum variation in gold abundances (1.4 - 5.8 ppb) and may be related to the presence of primitive, uncontaminated basalts (Ambenali), lowest value - crust-contaminated basalts (Poladpur) and basalts derived from enriched-mantle sources (Mahabaleshwar). Gold appears to be insensitive to crystal fractionation or differentiation as basalts of different types such as the picritic, porphyritic, aphyric and giant plagioclase-bearing types found within a subgroup or formation have similar averages (3.6 - 3.8 ppb). -from Authors

Original languageEnglish
Pages (from-to)243-246
Number of pages4
JournalJournal - Geological Society of India
Volume42
Issue number3
Publication statusPublished - 1 Jan 1993

ASJC Scopus subject areas

  • Geology

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    Oleinikov, B. V., Korobeinikov, A. F., Koroleva, O. V., Kirshnamurthy, P., Kumar, A., & Gopalan, K. (1993). The gold content of Deccan basalts Western Ghats, India. Journal - Geological Society of India, 42(3), 243-246.