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The Combined Algae Test for the Evaluation of Mixture Toxicity in Environmental Samples
(
- Environmental Toxicology and Chemistry
, 2020-11-05)
The combined algae test is a 96‐well plate‐based algal toxicity assay with the green algae Raphidocelis subcapitata that combines inhibition of 24‐h population growth rate with inhibition of photosynthesis detected after ...
Impact of different chloride salts and their concentrations on nitrification and trace gas emissions from a sandy soil under a controlled environment
(
- Soil Use and Management
, 2021-03-10)
Potassium chloride (KCl) and magnesium chloride (MgCl2) can be used to reduce carbon dioxide (CO2) and nitrous oxide (N2O) emissions, but their efficacy can be strongly affected by their Cl− concentration. This study aimed ...
Quantitative Rietveld-Analyse von amorphen Materialien
(Univ. Halle, 2007)
Zsfassung in engl. Sprache
Evidence for local carbon‐cycle perturbations superimposed on the Toarcian carbon isotope excursion
(
- Geobiology
, 2020-08-12)
A Jurassic negative carbon isotope excursion (CIE), co‐evolved with Toarcian Oceanic Anoxic Event (OAE) at ~183 Ma, is suggested to be linked to a global carbon‐cycle perturbation and is well documented for Toarcian ...
A history of violence: magma incubation, timing and tephra distribution of the Los Chocoyos supereruption (Atitlán Caldera, Guatemala)
(
- Journal of Quaternary Science
, 2021-01-11)
The climactic Los Chocoyos (LCY) eruption from Atitlán caldera (Guatemala) is a key chronostratigraphic marker for the Quaternary period given the extensive distribution of its deposits that reached both the Pacific and ...
Geostandards and Geoanalytical Research Bibliographic Review 2019
(
- Geostandards and Geoanalytical Research
, 2020-12-28)
This bibliographic review gives an outline of publications in 2019 focusing on reference materials (RMs) used in geochemistry and related fields, such as palaeoclimate and environmental research.
Fluids in systems of natural rock composition at ultra-high pressure metamorphic conditions
(Univ. Bochum, 2003)
Diese experimentelle Studie untersucht Fluide in natürlichen Gesteinszusammensetzungen unter UHP-metamorphen Bedingungen. Die UHP-Fluide werden quantifiziert, ihre chemische Zusammensetzung und ihre Verteilung im Kornmaßstab ...
Quartz and cristobalite ballen in impact melt rocks from the Ries impact structure, Germany, formed by dehydration of shock‐generated amorphous phases
(
- Meteoritics & Planetary Science
, 2020-11-24)
Quartz and cristobalite ballen aggregates surrounded by dendritic cristobalite in gneiss clasts of impact melt rocks from the Ries impact structure are analyzed by Raman spectroscopy, microscopy, and electron backscattered ...
Water Content of the Dehydration Melting Layer in the Topmost Lower Mantle
(
- Geophysical Research Letters
, 2021-01-09)
The water‐rich mantle transition zone and dry lower mantle suggest that a dehydration melting layer can form at the 660‐km depth boundary. However, the water content of the melting layer (CH2Omelt), which dominates its ...
Quartzite procurement in conglomerates and deposits: Geoarchaeological characterization of potential catchment areas in the central part of the Cantabrian Region, Spain
(
- Geoarchaeology
, 2021-01-05)
Raw material characterization in Paleolithic archaeology has widened our knowledge of Middle Paleolithic societies. Procurement of raw material, specifically flint, has allowed the tracing of the mobility of both stones ...