Petrogenesis and geochemistry of the Eocene volcanic sequence in the northeast of Zanjan: Implications for active continental margin magmatism in the Alborz- Azarbaijan Zone
The Eocene volcanic sequence in NE of the Zanjan and in the Alborz-Azarbaijan zone is mostly intermediate in composition and is accompanied with pyroclastic tuff and breccia. Petrographic studies reveal that these volcanic rocks are andesite and trachy-andesite. The common textures are porphyritic a...
| Main Authors: | , , |
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| Format: | Article |
| Language: | fas |
| Published: |
University of Isfahan
2018-03-01
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| Series: | Petrology |
| Subjects: | |
| Online Access: | http://ijp.ui.ac.ir/article_22516_5cae080df137a2093d091ee9f2388396.pdf |