Geochemistry and Petrogenesis of Siwana Peralkaline Granites, West of Barmer, Rajasthan, India

Anil Maheshwari; A. N. Sial; Massimo Coltorti; V. K. Chittora; Manoel J M Cruz

Geochemistry and Petrogenesis of Siwana Peralkaline Granites, West of Barmer, Rajasthan, India

Anil Maheshwari^*, A. N. Sial, Massimo Coltorti, V. K. Chittora, Manoel J M Cruz

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The bimodal Malani suite, West of Barmer, Rajasthan is characterized by discontinuous, ring shaped outcrops of Siwana peralkaline granite with minor outcrops of basalt. The peralkaline, within- plate and A-type nature of granite are evident by its chemical characteristics. The granite is characterized by high Na ₂OtK ₂O, Fe/Mg, Zr, Nb, Y, Zn ; low Al ₂O ₃, CaO and Sr and is significantly low in absolute abundance of trace and REE elements compared to type area Siwana granite. The granite is correlated to the "Pan-African" event and its petrogenesis and tectonic significance are discussed.

Original language	English
Pages (from-to)	87-95
Number of pages	9
Journal	Gondwana Research
Volume	4
Issue number	1
Publication status	Published - Jan 2001
Externally published	Yes

Keywords

Bimodal suite
Geochemistry
Malani igneous suite
Petrogenesis
Siwana granite

Cite this

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title = "Geochemistry and Petrogenesis of Siwana Peralkaline Granites, West of Barmer, Rajasthan, India",

abstract = "The bimodal Malani suite, West of Barmer, Rajasthan is characterized by discontinuous, ring shaped outcrops of Siwana peralkaline granite with minor outcrops of basalt. The peralkaline, within- plate and A-type nature of granite are evident by its chemical characteristics. The granite is characterized by high Na 2OtK 2O, Fe/Mg, Zr, Nb, Y, Zn ; low Al 2O 3, CaO and Sr and is significantly low in absolute abundance of trace and REE elements compared to type area Siwana granite. The granite is correlated to the {"}Pan-African{"} event and its petrogenesis and tectonic significance are discussed.",

keywords = "Bimodal suite, Geochemistry, Malani igneous suite, Petrogenesis, Siwana granite",

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year = "2001",

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language = "English",

volume = "4",

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T1 - Geochemistry and Petrogenesis of Siwana Peralkaline Granites, West of Barmer, Rajasthan, India

AU - Maheshwari, Anil

AU - Sial, A. N.

AU - Coltorti, Massimo

AU - Chittora, V. K.

AU - Cruz, Manoel J M

PY - 2001/1

Y1 - 2001/1

N2 - The bimodal Malani suite, West of Barmer, Rajasthan is characterized by discontinuous, ring shaped outcrops of Siwana peralkaline granite with minor outcrops of basalt. The peralkaline, within- plate and A-type nature of granite are evident by its chemical characteristics. The granite is characterized by high Na 2OtK 2O, Fe/Mg, Zr, Nb, Y, Zn ; low Al 2O 3, CaO and Sr and is significantly low in absolute abundance of trace and REE elements compared to type area Siwana granite. The granite is correlated to the "Pan-African" event and its petrogenesis and tectonic significance are discussed.

AB - The bimodal Malani suite, West of Barmer, Rajasthan is characterized by discontinuous, ring shaped outcrops of Siwana peralkaline granite with minor outcrops of basalt. The peralkaline, within- plate and A-type nature of granite are evident by its chemical characteristics. The granite is characterized by high Na 2OtK 2O, Fe/Mg, Zr, Nb, Y, Zn ; low Al 2O 3, CaO and Sr and is significantly low in absolute abundance of trace and REE elements compared to type area Siwana granite. The granite is correlated to the "Pan-African" event and its petrogenesis and tectonic significance are discussed.

KW - Bimodal suite

KW - Geochemistry

KW - Malani igneous suite

KW - Petrogenesis

KW - Siwana granite

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M3 - Article

AN - SCOPUS:0242463615

VL - 4

SP - 87

EP - 95

JO - Gondwana Research

JF - Gondwana Research

SN - 1342-937X

IS - 1

ER -

Geochemistry and Petrogenesis of Siwana Peralkaline Granites, West of Barmer, Rajasthan, India

Abstract

Keywords

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