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|Title:||Eruption history and depositional processes of the poris ignimbrite of Tenerife and the Glaramara Tuff of the English Lake District|
|Authors:||Brown, Richard James|
|Presented at:||University of Leicester|
|Abstract:||Introduction: This study documents the eruption histories and depositional mechanisms of the Poris ignimbrite in Tenerife (Canary Islands) and the Glaramara Tuff in the Ordovician Scafell Caldera, English Lake District. It focuses on the lithofacies architecture of the deposits and on the application of recent concepts of progressive aggradation from the depositional flow boundaries of density currents. The two deposits were chosen because they exhibit considerable lateral and vertical lithofacies variations that are likely to register spatial and temporal changes in current depositional behaviour, and because study of them offered the experience of working with both modern and ancient deposits. Initially it was thought that there might be some similarities between the two deposits in terms of eruptive history and emplacement process, but, aside from some similar lithofacies, the two deposits record very different types of eruptions.|
|Appears in Collections:||Theses, Dept. of Engineering|
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