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Hydrogen Diffusion in Clinopyroxene at Low Temperatures (195°C–400°C) and Consequences for Subsurface Processes
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- Geochemistry, Geophysics, Geosystems
, 2022-12-12)
Studying diffusion of hydrogen in nominally anhydrous minerals, like clinopyroxene, at low temperatures is a challenging task due to experimental and analytical difficulties. In this study, to overcome these problems we ...
Hydrochemistry and environmental isotopes (18O, 2H, 3H, 3He/4He) of groundwater and floodwater in the great area of Hurghada, Eastern Desert of Egypt
(
- Environmental Earth Sciences
, 2021-05-28)
Porous and fractured aquifers exist in the area of Hurghada, Eastern Desert of Egypt, whose recharge processes through the common flash floods are not identified. Hydrochemical parameters, stable isotopes <sup>18</sup>O, ...
A Reappraisal of the 40Ar/38Ar Dating Technique via Irradiation with γ‐Rays
(
- Geostandards and Geoanalytical Research
, 2023-05-07)
<p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en">In a reconnaissance study, we investigated the potential of γ‐ray induced production of <sup>38</sup>Ar<sub>K</sub> from <sup>39</sup>K for geochronological ...
In situ neutron diffraction for analysing complex coarse‐grained functional materials
(
- Journal of Applied Crystallography
, 2023-08-01)
<p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en">Complex functional materials play a crucial role in a broad range of energy‐related applications and in general for materials science. Revealing the structural ...
Fluid‐driven transformation of blueschist to vein eclogite during the Early Eocene in a subducted sliver of continental crust (Monte Emilius, Italian Western Alps)
(
- Journal of Metamorphic Geology
, 2021-11-04)
<title xmlns:mml="http://www.w3.org/1998/Math/MathML">Abstract</title><p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en">In the Penninic nappe stack of the Western Alps, high‐ to ultrahigh‐pressure metamorphic ...
Partial melting and reaction along deformation features in plagioclase
(
- Journal of Metamorphic Geology
, 2022-12-07)
Geological processes involving deformation and/or reactions are highly influenced by the rock grain size, especially if diffusion‐controlled processes take place such as metamorphic reactions and diffusion creep. Although ...
Pseudo-total antimony content in topsoils of the Berlin Metropolitan Area
(
- Journal of Soils and Sediments
, 2020-08-04)
Purpose:
Sb is a metalloid that naturally occurs in traces in the Northern German Lowland Area, only. Its frequent and still growing demand for industrial purposes and its release during coal combustion and by ...
Lu–Hf geochronology of ultra-high-pressure eclogites from the Tromsø-Nappe, Scandinavian Caledonides: evidence for rapid subduction and exhumation
(
- International Journal of Earth Sciences
, 2020-05-01)
Geochronology of ultra-high-pressure metamorphic rocks is able to constrain the timing and rates of subduction-zone processes. Lu–Hf garnet dating has the potential to yield information about the timing of the prograde ...
Impact of sedimentation history for As distribution in Late Pleistocene-Holocene sediments in the Hetao Basin, China
(
- Journal of Soils and Sediments
, 2020-07-01)
Purpose:
To understand the impact of geochemical sedimentation history for arsenic (As) distribution in the sediment profiles of the Hetao Basin, we (1) evaluated sediments provenance and variations of weathering ...
Laboratory testing and numerical simulation of properties and thermal-induced cracking of Eibenstock granite at elevated temperatures
(
- Acta Geotechnica
, 2020-02-11)
The knowledge about thermo-mechanical properties of granite is still limited to some extent. Individual measurements are necessary to obtain reliable properties for specific granite types. A reliable numerical model of ...