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The composition of CI chondrites and their contents of chlorine and bromine: Results from instrumental neutron activation analysis
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- Meteoritics & Planetary Science
, 2021-07-30)
<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">Between 1973 and 1994, 15 samples of CI chondrites were analyzed by neutron activation ...
Triple‐Element Stable Isotope Analysis of Chloromethane Emitted by Royal Fern and Degraded by Club Moss
(
- Journal of Geophysical Research: Biogeosciences
, 2023-05-17)
<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">Chloromethane (CH<sub>3</sub>Cl) is the most abundant natural chlorinated organic compound ...
Temporal Variability of Fluvial Sand Composition: An Annual Time Series From Four Rivers in SW Germany
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- Journal of Geophysical Research: Earth Surface
, 2023-06-15)
<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">The sampling of fluvial sediment is subject to many sources of uncertainty, for example, ...
Energy‐dispersive X‐ray stress analysis under geometric constraints: exploiting the material's inherent anisotropy
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- Journal of Applied Crystallography
, 2023-04-01)
Two data evaluation concepts for X‐ray stress analysis based on energy‐dispersive diffraction on polycrystalline materials with cubic crystal structure, almost random crystallographic texture and strong single‐crystal ...
Soil age and soil organic carbon content shape biochemical responses to multiple freeze–thaw events in soils along a postmining agricultural chronosequence
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- Biogeochemistry
, 2021-06-07)
Freeze–thaw (FT) events exert a great physiological stress on the soil microbial community and thus significantly impact soil biogeochemical processes. Studies often show ambiguous and contradicting results, because a ...
The Toba supervolcano eruption caused severe tropical stratospheric ozone depletion
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- Communications Earth & Environment
, 2021-04-12)
Supervolcano eruptions have occurred throughout Earth’s history and have major environmental impacts. These impacts are mostly associated with the attenuation of visible sunlight by stratospheric sulfate aerosols, which ...
Atmospheric CO2 Concentration Based on Boron Isotopes Versus Simulations of the Global Carbon Cycle During the Plio‐Pleistocene
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- Paleoceanography and Paleoclimatology
, 2023-02-21)
Atmospheric carbon dioxide concentrations (pCO<sub>2</sub>) beyond ice core records have been reconstructed from δ<sup>11</sup>B derived from planktic foraminifera found in equatorial sediment cores. Here, I applied a ...
Marble decay: towards a measure of marble degradation based on ultrasonic wave velocities and thermal expansion data
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- Environmental Earth Sciences
, 2021-05-23)
Marble as ornamental and dimensional stones as well as in their natural environments show complex weathering phenomena. Physical, chemical, and biological weathering of marble are well documented. The impact of climate ...
Consolidation of volcanic tuffs with TEOS and TMOS: a systematic study
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- Environmental Earth Sciences
, 2021-12-08)
In this study, nine volcanic tuffs from Armenia, Germany and Mexico were treated with two commercially available consolidants on base of silicic acid ester, as well as different pretreatments with an anti-swelling agent ...
The role of clay content and mineral surface area for soil organic carbon storage in an arable toposequence
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- Biogeochemistry
, 2021-10-01)
Correlations between organic carbon (OC) and fine mineral particles corroborate the important role of the abundance of soil minerals with reactive surfaces to bind and increase the persistence of organic matter (OM). The ...