Petrogenesis of the Late Cenozoic collision volcanism in the central part of the Lesser Caucasus (Azerbaijan) |
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| Authors: | NA Imamverdiyev MYa Gasangulieva GJ Babaeva ShF Abdullaeva AA Veliev |
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| Institution: | 1. Baku State University, Azerbaijan, Academic Zahid Khalilov str. 23, Baku, AZ-1073/1, AZ 1148, Republic of Azerbaijan;2. Institute of Geology and Geophysics, Azerbaijan National Academy of Sciences, H. Javid Av. 119, Baku, AZ 1143, Azerbaijan;3. Azerbaijan International Mining Company, Hanifa Aleskerov str. 16, Nasimi, Baku, AZ 1022, Azerbaijan |
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| Abstract: | The Late Cenozoic volcanics of the Lesser Caucasus have similar trace-element and REE patterns with negative anomalies of Nb, Ta, Hf, and Zr. They are highly enriched in Rb, Ba, Th, and La and depleted in Ti, Yb, and Y with respect to N-MORB, which indicates their formation from the subduction-metasomatized lithospheric mantle. Partial melting of the subcontinental mantle lithosphere and crustal assimilation and fractional crystallization controlled the magma evolution in the collisional magmatic belts. |
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| Keywords: | petrogenesis collision volcanism Lesser Caucasus |
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