The gold content of Deccan basalts Western Ghats, India

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 language	English
Pages (from-to)	243-246
Number of pages	4
Journal	Journal - Geological Society of India
Volume	42
Issue number	3
Publication status	Published - 1 Jan 1993

ASJC Scopus subject areas

Geology

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@article{076960cca9fa4bcf9dc3242f0a94b6d4,

title = "The gold content of Deccan basalts Western Ghats, India",

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",

author = "Oleinikov, {B. V.} and Korobeinikov, {A. F.} and Koroleva, {O. V.} and P. Kirshnamurthy and A. Kumar and K. Gopalan",

year = "1993",

month = jan,

day = "1",

language = "English",

volume = "42",

pages = "243--246",

journal = "Journal of the Geological Society of India",

issn = "0016-7622",

publisher = "Geological Society of India",

number = "3",

}

TY - JOUR

T1 - The gold content of Deccan basalts Western Ghats, India

AU - Oleinikov, B. V.

AU - Korobeinikov, A. F.

AU - Koroleva, O. V.

AU - Kirshnamurthy, P.

AU - Kumar, A.

AU - Gopalan, K.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - 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

AB - 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

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M3 - Article

AN - SCOPUS:0027843017

VL - 42

SP - 243

EP - 246

JO - Journal of the Geological Society of India

JF - Journal of the Geological Society of India

SN - 0016-7622

IS - 3

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