Aaron Wolfgang Ashley

Aaron Wolfgang Ashley
Florida State University | FSU · Department of Earth, Ocean and Atmospheric Science

MS

About

11
Publications
847
Reads
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15
Citations
Citations since 2017
7 Research Items
15 Citations
201720182019202020212022202302468
201720182019202020212022202302468
201720182019202020212022202302468
201720182019202020212022202302468

Publications

Publications (11)
Article
Full-text available
The viscosity of magma plays a crucial role in the dynamics of the Earth: from the crystallization of a magma ocean during its initial stages to modern-day volcanic processes. However, the pressure-dependence behavior of viscosity at high pressure remains controversial. In this study, we report the results of first-principles molecular dynamics sim...
Article
Water influences geodynamic processes such as melting, deformation and rheology. Yet its distribution in the oceanic upper mantle is primarily known indirectly from melt inclusions and glasses of erupted mantle melts (i.e. mid-ocean ridge and ocean island basalts). To better constrain the mechanisms influencing the distribution of H2O in the mantle...
Poster
Water in the mantle influences magmatism and rheology. Yet existing water contents in mantle xenolith phases show a highly variable water content distribution in the oceanic lithosphere [1,2]. Here, water concentrations in olivine and pyroxenes were determined by FTIR in harzburgite and dunite xenoliths from Savai’i (Samoa) to better constrain the...
Article
Full-text available
Argues for the bacterial origin of ooids in ironstones and explains formation of ferrous and ferric minerals.

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Projects

Project (1)
Project
To constrain mantle processes influencing water concentrations in the oceanic lithosphere.