High-Mg andesitic rocks formed through crustal magmatic differentiation
نویسندگان
چکیده
منابع مشابه
‘ballen Silica’ in Impactites and Magmatic Rocks
Introduction and background: Ballen silica, in the modification of α-quartz (‘ballen quartz’) or α-cristobalite, has been regarded as an impactcharacterstic microscopic feature for decades. The report of ballen silica in impact melt rocks from the Mien impact structure (Sweden; the impact melt rocks were formerly considered as rhyolites) was the first description of ballen silica in impactites ...
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about 50 Km northwest of Bardeskan, Eocene volcanic and volcano sedimentary rocks of magmatic belt of north central Iran structural zone are host of Abri copper deposit. Volcanic rocks dominantly have andesitic, basalt and andesitic basalt composition, and manifested such as submarine lava flows, brecciated lavas in the present of water (agglomerate), or ash and fragmented volcanic rocks (tuffi...
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ژورنال
عنوان ژورنال: Lithos
سال: 2021
ISSN: 0024-4937
DOI: 10.1016/j.lithos.2021.106069