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Modeling the Viscosity of Anhydrous and Hydrous Volcanic Melts
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- Geochemistry, Geophysics, Geosystems
, 2021-08-30)
The viscosity of volcanic melts is a dominant factor in controlling the fluid dynamics of magmas and thereby eruption style. It can vary by several orders of magnitude, depending on temperature, chemical composition, and ...
Multiple Bragg reflection by a thick mosaic crystal. II. Simplified transport equation solved on a grid
(
- Acta Crystallographica Section A
, 2020)
The generalized Darwin–Hamilton equations [Wuttke (2014). Acta Cryst. A70, 429–440] describe multiple Bragg reflection from a thick, ideally imperfect crystal. These equations are simplified by making full use of energy ...
Post Mid-Cretaceous Tectonic and Topographic Evolution of Western Marie Byrd Land, WestAntarctica: Insights from Apatite FissionTrack and (U-Th-Sm)/He Data
(
- Geochemistry, Geophysics, Geosystems
, 2019)
New low-temperature thermochronological data from granitic basement of western Marie Byrd Land (MBL) provide insights into the still poorly constrained tectonic and topographic evolution of West Antarctica during and after ...
Constraining Internal States in Progressive Rock Failure of Carrara Marble by Measuring Residual Strains With Neutron Diffraction
(
- Journal of Geophysical Research: Solid Earth
, 2020)
Knowledge of the internal state of rock is key to anticipate its rheological response and susceptibility to external factors. Time-dependent failure in rock is controlled by internal state changes, like damage accumulation ...
Stepwise Weakening of the Pliocene Leeuwin Current
(
- Geophysical Research Letters
, 2019)
The Indonesian Throughflow (ITF) operates as an important link in global thermohaline circulation, and ITF variability probably modulated Pliocene climate change. Yet, whether ITF variability accounted for oceanographic ...
Effects of Temperature and Light on Methane Production of Widespread Marine Phytoplankton
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- Journal of Geophysical Research: Biogeosciences
, 2020)
Methane (CH4) production in the ocean surface mixed layer is a widespread but still largely unexplained phenomenon. In this context marine algae have recently been described as a possible source of CH4 in surface waters. ...
speckle-tracking: a software suite for ptychographic X-ray speckle tracking
(
- Journal of Applied Crystallography
, 2020)
In recent years, X-ray speckle-tracking techniques have emerged as viable tools for wavefront metrology and sample imaging applications. These methods are based on the measurement of near-field images. Thanks to their ...
Detrital apatite geochemistry and thermochronology from the Oligocene/Miocene Alpine foreland record the early exhumation of the Tauern Window
(
- Basin Research
, 2021-09-15)
The early exhumation history of the Tauern Window in the European Eastern Alps and its surface expression is poorly dated and quantified, partly because thermochronological and provenance information are sparse from the ...
Tephra Deposition and Bonding With Reactive Oxides Enhances Burial of Organic Carbon in the Bering Sea
(
- Global Biogeochemical Cycles
, 2021-11-07)
Preservation of organic carbon (OC) in marine sediments exerts a major control on the cycling of carbon in the Earth system. In these marine environments, OC preservation may be enhanced by diagenetic reactions in locations ...
The Influence of Chemical and Mineral Compositions on the Parameterization of Immersion Freezing by Volcanic Ash Particles
(
- Journal of Geophysical Research: Atmospheres
, 2021-09-08)
Volcanic ash (VA) from explosive eruptions contributes to aerosol loadings in the atmosphere. Aside from the negative impact of VA on air quality and aviation, these particles can alter the optical and microphysical ...