Quaternary basaltic volcanism reflecting heterogeneous mixture of two mafic melts: Gölova basaltic rocks, Southern Anatolia, Turkey

Autor: Musa Alpaslan, E. Varol
Rok vydání: 2011
Předmět:
Zdroj: Geochemistry International. 50:63-73
ISSN: 1556-1968
0016-7029
DOI: 10.1134/s0016702911110097
Popis: The Quaternary volcanic rocks from Golova region constitute an example of on intra-continental volcanism in Southern Anatolia, Turkey. These rocks were erupted along the left-lateral strike-slip Yumurta-l iota k fault zone. They comprise basaltic lavas containing mafic enclaves. The enclaves are distributed widely through the lavas and are spherical to ellipsoidal in shape. Both the host lavas and the mafic enclaves have an alkaline character. Fractional crystallization process was important in the formation of the mafic enclaves where olivine was the main crystallizing phase. However, fractional crystallization was not a dominant process in the host lavas. Geochemical and petrological characteristics of both the mafic enclaves and the host lavas imply that magma mingling occurred during or immediately before eruption.
Databáze: OpenAIRE