Ayalew, D, Pyle, D and Ferguson, D orcid.org/0000-0003-0612-6512 (2022) Effusive Badi Silicic Volcano (Central Afar, Ethiopian Rift); Sparse Evidence for Pyroclastic Rocks. In: Paone, A and Yun, S-H, (eds.) Progress in Volcanology. InTech Open , pp. 153-158. ISBN 978-1-83969-502-5
Abstract
We report field observation, textural description (thin section and scanning electron microscope (SEM)) and mineral chemistry (backscattered electron imaging and dispersive X-ray analysis) for rhyolitic obsidian lavas from previously under described effusive Badi volcano, central Afar within the Ethiopian rift. These rhyolitic obsidian lavas are compositionally homogeneous and contain well developed flow bands. Textural analysis is undertaken to understand the formation of flow band, and to draw inferences on the mechanism of emplacement of this silicic volcano. Flow band arises from variable vesicularity (i.e., alternating domains of vesicular, light glass and non-vesicular, brown glass). Such textural heterogeneities have been developed during distinct cooling and degassing of the melt in the conduit.
Metadata
Item Type: | Book Section |
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Authors/Creators: |
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Editors: |
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Keywords: | Afar; Badi; flow band; lava; pyroclastic |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst of Geophysics and Tectonics (IGT) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 27 Sep 2022 15:10 |
Last Modified: | 27 Sep 2022 15:10 |
Status: | Published |
Publisher: | InTech Open |
Identification Number: | 10.5772/intechopen.98558 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:191341 |