Results 191 to 200 of about 131,165 (299)

Terrestrial ages of meteorites from the Atacama Desert (Chile) and insights into the past meteorite flux to Earth

Meteoritics &Planetary Science, EarlyView.
Abstract The Atacama Desert in Chile is characterized by its high meteorite density and old meteorite terrestrial ages. In this work, we present new terrestrial ages derived from measurements of the concentration of cosmogenic 36Cl in the metal fraction of 51 ordinary chondrites collected over a 6.8 km2 area located in the Catalina Dense Collection ...
Carine Sadaka, Jérôme Gattacceca, Florian Dumas, Régis Braucher, ASTER Team, Ingo Leya, Mohammad Tauseef, Pierre‐Henri Blard, David Bekaert, Evelyn Füri, Laurent Zimmermann, Anthony Lagain, Hadrien A. R. Devillepoix, Matthieu Gounelle   +13 more
wiley   +1 more source

Soil Geochemical Controls on Heavy Metal(loid) Accumulation in Tuber Crops from Basalt-Derived Soils and Associated Dietary Intake Health Risks on Hainan Island, China. [PDF]

Toxics
Tang L, Yang J, Cai Y, Hu S, Gong Q, Zhang M, Li Y, Su L.   +7 more
europepmc   +1 more source

Geochemical Analyses of Potential Petroleum Source Beds

, 1974
openaire   +1 more source

Non‐innocent solvents in meteorite extractions: Evidence for artifact formation

Meteoritics &Planetary Science, EarlyView.
Abstract Solvent extraction is a cornerstone of meteoritic organic and inorganic chemistry, yet the assumption that common solvents act as chemically inert media is becoming increasingly untenable. This study reports that low‐molecular‐weight alcohols, particularly methanol and ethanol, are “non‐innocent” solvents when used to extract soluble sulfur ...
N. Randazzo, R. W. Hilts, R. M. Whittal, B. Reiz, V. Olan‐Rubio, C. D. K. Herd, I. H. Krouse   +6 more
wiley   +1 more source

Integration of β-VAE, DWT, and GMM for Sentinel-2-based mapping of hydrothermal alteration and iron speciation in the Zafarghand area, Iran. [PDF]

Sci Rep
Kalkhoran SE, Ghannadpour SS.
europepmc   +1 more source

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

Meteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska, Sanna Alwmark, Mikael Calner, Sylvain Richoz, Jens Ormö, Erik Sturkell, Carl Alwmark   +6 more
wiley   +1 more source

Far-reaching hunter-gatherer networks during the Last Glacial Maximum in Western Europe. [PDF]

Sci Adv
Sánchez de la Torre M, Mangado X, Castillo-Jiménez S, Cuartero F, Hewitt RJ, Luque L, Gratuze B, Almeida M, de Andrés-Herrero M, Constans G, Marguet L, Aubry T, Alcolea-González JJ, Alcaraz-Castaño M.   +13 more
europepmc   +1 more source

Field‐based evaluation of glass cullet as a supplementary sediment source for coastal restoration

Restoration Ecology, EarlyView.
There is an ever‐increasing demand for sand to support projects like beach nourishment and dune restoration, but dredging and mining sand causes environmental damage. Demonstrating the environmental and ecological compatibility of crushed and ground glass known as cullet to support coastal restoration projects could simultaneously divert waste from ...
Lily S. Pfeifer, Charles A. Schutte
wiley   +1 more source

Application of UMAP to identify refined gold sources using chemical composition analysis. [PDF]

Sci Rep
Verbel AA, Gregory DD, Schutesky ME, Thompson J, McInnes L, Figueroa MA, Moreira-Lima EA, Tadao-Joko C.   +7 more
europepmc   +1 more source

Petrographic and geochemical analyses of Beaufort-Mackenzie Basin shales

, 1996
J Bloch, D R Issler
openaire   +1 more source