Member Since 2009
Megan Eve Newcombe
Assistant Professor, University of Maryland College Park
AGU Research
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Tracking the effect of thermal metamorphism on the water contents of ordinary chondrite minerals
AGU 2024
volcanology, geochemistry and petrology | 12 december 2024
Sumedha Desikamani, Megan E. Newcombe, Liam Peters...
The water contents of the planetesimal building blocks of the terrestrial planets can be assessed by quantifying the H abundances of bulk meteorites o...
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Experimental Investigations of the Spinel-Rich Sinus Aestuum Dark Mantle Deposit
AGU 2024
planetary sciences | 11 december 2024
Cosmo Sikes, Jessica M. Sunshine, Megan E. Newcomb...
The Sinus Aestuum (SA) dark mantle deposit (DMD) is a pyroclastic deposit located on the central nearside of the Moon. Anomalous spectral signatures a...
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Water in Garnet from Contact Metamorphic Environments: Examples from Garnet Ledge, AK and Empire Mountain Skarn, CA
AGU 2024
volcanology, geochemistry and petrology | 10 december 2024
Kathryn Bickerstaff, Kathleen Stepien, Sarah Penni...
Garnet is considered a nominally anhydrous mineral that can sometimes accommodate hydrogen (H) into its structure. This H can be measured using severa...
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Distribution of Water and Trace Elements in Garnets from the Willsboro Mine, NY
AGU 2024
volcanology, geochemistry and petrology | 10 december 2024
Kathleen Stepien, Sarah Penniston-Dorland, Megan E...
Fluids play a crucial role in metamorphic systems. They are an agent of geochemical cycling and drive reactions, concentrate metals in ore deposits, a...
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Micro-CT Characterization of Vesicles in 3D to Understand Eruption Style Changes Throughout a Single Eruption at Cinder Cone, Lassen Volcanic National Park, CA
AGU 2024
volcanology, geochemistry and petrology | 09 december 2024
Marcos Munoz, Kristina J. Walowski, Megan E. Newco...
Cinder Cone, within Lassen Volcanic National Park, southern Cascade Arc, erupted in 1666 CE producing lava flows and explosive tephra deposits in thre...
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Water in Plagioclase Phenocrysts from the 2009 Eruption of Redoubt Volcano, Alaska
AGU 2024
volcanology, geochemistry and petrology | 09 december 2024
Robert Stutzke, Sumedha Desikamani, Megan E. Newco...
Water incorporated into plagioclase feldspar has potential to track magma migration in the hours to weeks prior to eruption. However, there are few st...
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3D Diffusion of Water in Melt Inclusion‐Bearing Olivine Phenocrysts
GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS
04 march 2024
Euan Mutch, Megan E. Newcombe, John F. Rudge
Olivine‐hosted melt inclusions are an important archive of pre‐eruptive processes such as magma storage, mixing and subsequent ascent t...
Efficiency and timing of water loss during heating of early-formed planetesimals
EXPLORING ROCKY BODY EVOLUTION IN THE SOLAR SYSTEM AND BEYOND II ORAL
study of earth's deep interior | 15 december 2023
Megan E. Newcombe, Liam Peterson, Sumedha Desikama...
The timing of delivery and the types of bodies that contributed volatiles to the terrestrial planets remain highly debated. For example, it is unknown...
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