Chapter 4: Compositional zoning and petrology of the Thera pyroclastics
Geological Society, London, Memoirs
By: T. H. Druitt, L. Edwards, R. M. Mellors, D. M. Pyle, R. S. J. Sparks, Marvin A. Lanphere, M. Davies, and B. Barreirio
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Abstract
Compositional zoning is a common feature of pyroclastic deposits erupted from calderas worldwide (Smith 1979; Hildreth 1981; Bacon & Druitt 1988; De Silva 1991; Feeley & Davidson 1994). Compositionally zoned tuffs provide a geologically instantaneous snapshot of the vertical stratigraphy and density stratification in the chamber immediately before eruption. Magma bodies are commonly zoned in density, with light, relatively cool, silicic magma overlying hotter, more mafic magma. Vertical zonation can arise by a number of processes, including crystallization and convective fractionation on the chamber.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Chapter 4: Compositional zoning and petrology of the Thera pyroclastics |
| Series title | Geological Society, London, Memoirs |
| DOI | 10.1144/GSL.MEM.1999.019.01.04 |
| Volume | 19 |
| Issue | 1 |
| Year Published | 1999 |
| Language | English |
| Publisher | Geological Society of London |
| Description | 21 p. |
| First page | 58 |
| Last page | 78 |
| Country | Greece |
| Other Geospatial | Santorini |
| Google Analytic Metrics | Metrics page |