A5042452129- Astro and Planetary Science
- High-pressure geophysics and materials
- Geological and Geochemical Analysis
- Planetary Science and Exploration
- Metallurgy and Material Forming
- High-Velocity Impact and Material Behavior
- Isotope Analysis in Ecology
- Geological and Geophysical Studies
- Crystal Structures and Properties
- Geochemistry and Geologic Mapping
- Advanced Chemical Physics Studies
University of Leeds
2020-2025
<title>Abstract</title> The evolution of a continental rift towards an ocean ridge appears to be strongly controlled by the magmatic architecture rifting crust. Geophysical evidence from magmatically rifted margins and active rifts suggests that key stage maturation is localisation extensional activity narrow zones. dynamics magma ascent beneath these zones driving further crustal extension eventual breakup. Here we constrain timescales two in Main Ethiopian Rift (MER). At both locations...
Abstract Modeling the planetary heat transport of small bodies in early Solar System allows us to understand geological context meteorite samples. Conductive cooling planetesimals is controlled by thermal conductivity, capacity, and density, which are functions temperature ( T ). We investigate if incorporation ‐dependence properties introduction a nonlinear term equation could result different interpretations origin classes meteorites. have developed finite difference code perform numerical...
Pallasite meteorites contain evidence for vastly different cooling timescales: rapid at high temperatures (K/yrs) and slow lower (K/Myrs). olivine also shows contrasting textures ranging from well-rounded to angular fragmental, some samples record chemical zoning. Previous pallasite formation models have required fortuitous changes the parent body in order explain these timescales textures, including late addition of a megaregolith layer, impact excavation, or break-up recombination. We...
Pallasite meteorites contain evidence for vastly different cooling timescales: rapid at high temperatures (K/yrs) and slow lower (K/Myrs). olivine also shows contrasting textures ranging from well-rounded to angular fragmental, some samples record chemical zoning. Previous pallasite formation models have required fortuitous changes the parent body in order explain these timescales textures, including late addition of a megaregolith layer, impact excavation, or break-up recombination. We...
Earth and Space Science Open Archive This preprint has been submitted to is under consideration at Journal of Geophysical Research - Planets. ESSOAr a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing an older version [v1]Go new versionThe conductive cooling planetesimals with temperature-dependent propertiesAuthorsMaeveMurphy QuinlaniDAndrewWalkeriDChristopher J.DaviesiDJonathan...
The formation mechanism of pallasite meteorites, which are mixtures Fe-Ni metal and olivine (Figure 1), is not agreed upon within the literature. Formation hypotheses as diverse relict core-mantle region material&#160;[1], catastrophic impact-related mixing&#160;[2], metallic volcanism&#160;[3], fractional melting a chondritic body&#160;[4]&#160;or combination above&#160;[1]&#160;have been suggested. In this abstract, we build on recently published results Murphy...
Earth and Space Science Open Archive This work has been accepted for publication in Journal of Geophysical Research - Planets. Version RecordESSOAr is a venue early communication or feedback before peer review. Data may be preliminary. Learn more about preprints. preprintOpen AccessYou are viewing the latest version by default [v2]The conductive cooling planetesimals with temperature-dependent propertiesAuthorsMaeveMurphy QuinlaniDAndrewWalkeriDChristopher J.DaviesiDJonathan...