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Report on Thermobarometry in Volcanics with an Example from Santiago Island, Cape Verde
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences.
2011 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Theory behind thermobarometry and its applications in magmatic systems is summarized. Olivine and clinopyroxene thermometers and barometers are further explained and applied to data from volcanics of Santiago Island, Cape Verde. Temperature of crystallization was calculated for both olivine and clinopyroxene. In addition to this pressure calculations were made on clinopyroxenes. Results among olivines and clinopyroxenes for those where equilibrium conditions were established showed temperatures within the ranges expected from the literature. Pressure measurements were transformed into depth estimations using densities from the uppermost 29 km of lithosphere and gave depth of crystallization of 36±6,4 km to 48±6,4 km thus localizing magma storage to those levels. This rough estimation of crystallization depths fits with results from thermobarometry studies made on the Teno shield on Tenerife, a volcanic island similar to Santiago.

Place, publisher, year, edition, pages
2011. , p. 15
Keywords [en]
Santiago Island, Cap Verde, thermobarometry, olivine, clinopyroxene
National Category
Geology
Identifiers
URN: urn:nbn:se:uu:diva-355194OAI: oai:DiVA.org:uu-355194DiVA, id: diva2:1227846
Supervisors
Note

Arkivexemplar i Uppsala universitets arkiv

Available from: 2018-06-27 Created: 2018-06-27 Last updated: 2018-06-27Bibliographically approved

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