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A New Method for Determining Fluid Flux at High Pressures Applied to the Dehydration of Serpentinites
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- Geochemistry, Geophysics, Geosystems
, 2022-09-08)
A new method to determine fluid flux at high pressures and temperatures has been developed and used to study serpentinites at subduction zone conditions. Drill cores of a natural antigorite‐serpentinite with a strong ...
Site dependence of the magnetocaloric effect in Mn5−xFexSi3
(
- Journal of Applied Crystallography
, 2022-09-06)
The nuclear and magnetic structures of Mn3Fe2Si3 are investigated in the temperature range from 20 to 300 K. The magnetic properties of Mn3Fe2Si3 were measured on a single crystal. The compound undergoes a paramagnetic to ...
Denitrification‐Driven Transcription and Enzyme Production at the River‐Groundwater Interface: Insights From Reactive‐Transport Modeling
(
- Water Resources Research
, 2022-08-26)
Molecular‐biological data and omics tools have increasingly been used to characterize microorganisms responsible for the turnover of reactive compounds in the environment, such as reactive‐nitrogen species in groundwater. ...
Spatial and temporal dynamics of water isotopes in the riverine‐marine mixing zone along the German Baltic Sea coast
(
- Hydrological Processes
, 2022-09-28)
River estuaries are characterized by mixing processes between freshwater discharge and marine water masses. Since the first are depleted in heavier stable isotopes compared with the marine realm, estuaries often show a ...
Incomplete Crack Sealing Causes Localization of Fracturing in Hydrothermal Quartz Veins
(
- Geophysical Research Letters
, 2022-08-10)
Cyclic microfracturing and epitaxial crystal growth have long been recognized in crack‐seal veins, but an understanding of a single crack‐seal cycle is still missing. Here we present a phase‐field model that includes both ...
Clay fraction properties and grassland management imprint on soil organic matter composition and stability at molecular level
(
- Soil Use and Management
, 2022-05-07)
The dynamics of soil carbon in grassland are partly determined by soil organic matter (SOM) composition. However, it remains unclear which role grassland management plays in the interplay between SOM composition and carbon ...
Polybaric fractional crystallisation of arc magmas: an experimental study simulating trans-crustal magmatic systems
(
- Contributions to Mineralogy and Petrology
, 2021-12-07)
Crystallisation-driven differentiation is one fundamental mechanism proposed to control the compositional evolution of magmas. In this experimental study, we simulated polybaric fractional crystallisation of mantle-derived ...
Mineralogical and geochemical investigation of megaspherulites from Argentina, Germany, and the USA
(
- Bulletin of Volcanology
, 2021-02-19)
Textures and whole-rock chemistry, as well as mineral composition, were analyzed in megaspherulites (high-temperature crystallization domains [HTCDs]) that formed in different geographical and geotectonic contexts and ...
Dynamics of Greenhouse Gases (CH4 and CO2) in Meromictic Lake Burgsee, Germany
(
- Journal of Geophysical Research: Biogeosciences
, 2022-08-19)
Extraordinary amounts of greenhouse gases can be stored within the monimolimnion of meromictic lakes, that is, in the water body which is excluded from mixing events. Lake Burgsee (Thuringia, Germany) is a shallow (depth ...
Experimentally Induced Thermal Fatigue on Lunar and Eucrite Meteorites—Influence of the Mineralogy on Rock Breakdown
(
- Journal of Geophysical Research: Planets
, 2022-10-07)
Thermal fatigue has been proven to be of fundamental importance for the nature and evolution of surfaces of airless bodies in the solar system. It is a rock erosive process acting in conjunction with meteoroid bombardment. ...