RA
Member Since 1985
Rebecca Ann Lange
Professor, University of Michigan Ann Arbor
AGU Research
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Unusually High-Water Contents in High-Mg, High-K Basanites and Minettes From the Pliocene Kings Volcanic Field, Sierra Nevada, CA: Did Delamination of Serpentinized Lithosphere Release H2O-Rich Fluid to Trigger Melt Formation?
CONVERGENT MARGIN DYNAMICS I POSTER
volcanology, geochemistry and petrology | 13 december 2023
Madeleine Frank, Rebecca A. Lange
A collection of Pliocene, high-MgO (≤14 wt%) basanite and minette flows, with an enhanced arcgeochemical signature, are located near the North, Middle...
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Olivine-melt thermometry and hygrometry applied to calk-alkaline mafic lavas from the Cascade arc: agreement with volatile analyses of olivine-hosted melt inclusions
VOLATILE CYCLING IN SUBDUCTION ZONES: A HOLISTIC APPROACH FROM SLAB TO SURFACE I POSTER
volcanology, geochemistry and petrology | 15 december 2022
Xiaofei Pu, Namitha Kumar, Rebecca A. Lange, Gordo...
The Cascade arc undergoes subduction of relatively young and warm lithosphere, leading to the expectation that basalts formed in the arc mantle wedge ...
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Generation of Geochemical Gradients in the Pre-caldera Glass Mountain High-SiO2 Rhyolites of Long Valley, CA: Clues to the Origin and Preservation of Rb/Sr Isochrons
THE STORAGE, TRANSPORT, AND ERUPTION OF MAGMA USING FIELD OBSERVATIONS, LABORATORY APPROACHES, AND MODELING IV POSTER
volcanology, geochemistry and petrology | 14 december 2022
Bryanne Gordon, Rebecca A. Lange, James Jolles
The high-SiO2 rhyolites of Glass Mountain (GM), which preceded eruption of the Bishop Tuff, have exceptionally low contents of Sr (~4 to ~0.1 ppm). Th...
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Constraints on Early Paleozoic Deep‐Ocean Oxygen Concentrations From the Iron Geochemistry of the Bay of Islands Ophiolite
GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS
05 july 2022
Daniel A. Stolper, Xiaofei Pu, Max Lloyd, Nikolas ...
The deep ocean is generally considered to have changed from anoxic in the Precambrian to oxygenated by the Late Paleozoic (∼420–400...
Evidence of Rapid Phenocryst Growth of Olivine During Ascent in Basalts From the Big Pine Volcanic Field: Application of Olivine‐Melt Thermometry and Hygrometry at the Liquidus
GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS
16 october 2020
Sarah Brehm, Rebecca A. Lange
The Quaternary Big Pine (BP) volcanic field in eastern California is notable for the occurrence of mantle xenoliths in several flows. This points t...
High-Resolution Numerical Modeling of Heat and Volatile Transfer from Basalt to Wall Rock: Application to the Crustal Column beneath Long Valley Caldera, CA
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
06 march 2020
Meredith Calogero, Eric A. Hetland, Rebecca A. Lan...
We present a high‐resolution numerical model of the thermal evolution of the crustal column beneath Long Valley caldera, California, from whi...
Experimental study of olivine crystallization in basalt under rapid, diffusion-limited growth conditions: tests of chemical equilibrium and re-equilibration timescales
RATES AND TIMESCALES OF MAGMATIC AND DYNAMIC PROCESSES: INSIGHTS FROM THERMOBAROMETRY AND GEOSPEEDOMETRY II POSTERS
volcanology, geochemistry and petrology | 13 december 2019
Sarah Brehm, Rebecca A. Lange
Many olivine phenocrysts in basalt display diffusion-limited rapid growth textures (e.g. hopper, dendritic). In addition, complex P-zoning patterns in...
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High-Resolution Numerical Modeling of Heat and Volatile Transfer from Basalt to Wall Rock: Application to the Crustal Column beneath Long Valley Caldera, CA
GEODYNAMICS OF LARGE SILICIC MAGMA BODIES IN EARTH’S UPPER CRUST FROM A VOLCANIC AND PLUTONIC PERSPECTIVE II POSTERS
volcanology, geochemistry and petrology | 13 december 2019
Meredith Calogero, Eric A. Hetland, Rebecca A. Lan...
We are developing a new high-resolution 1D numerical model of crustal thermal and compositional evolution due to basalt influx, which we have applied ...
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