Large Igneous Provinces from Gondwana and Adjacent Regions
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Origin of the Amba Dongar carbonatite complex, India and its possible linkage with the Deccan Large Igneous Province
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Published:January 01, 2018
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CiteCitation
Jyoti Chandra, Debajyoti Paul, Shrinivas G. Viladkar, Sarajit Sensarma, 2018. "Origin of the Amba Dongar carbonatite complex, India and its possible linkage with the Deccan Large Igneous Province", Large Igneous Provinces from Gondwana and Adjacent Regions, S. Sensarma, B. C. Storey
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Abstract:
The genetic connection between Large Igneous Province (LIP) and carbonatite is controversial. Here, we present new major and trace element data for carbonatites, nephelinites and Deccan basalts from Amba Dongar in western India, and probe the linkage between carbonatite and the Deccan LIP. Carbonatites are classified into calciocarbonatite (CaO, 39.5–55.9 wt%; BaO, 0.02–3.41 wt%; ΣREE, 1025–12 317 ppm) and ferrocarbonatite (CaO, 15.6–31 wt%; BaO, 0.3–7 wt%; ΣREE, 6839–31 117 ppm). Primitive-mantle-normalized trace element patterns of carbonatites show distinct negative Ti, Zr–Hf, Pb, K and U anomalies, similar to that observed in carbonatites globally. Chondrite-normalized REE patterns reveal high LREE/HREE...
- alteration
- Amba Dongar
- Asia
- basalts
- carbonatites
- chemical composition
- complexes
- crystal fractionation
- Deccan Traps
- flood basalts
- genesis
- Gujarat India
- igneous rocks
- India
- Indian Peninsula
- large igneous provinces
- low temperature
- magmas
- models
- oxides
- petrography
- principal components analysis
- statistical analysis
- temperature
- trace elements
- volcanic rocks