Results 31 to 40 of about 698 (185)

Surface Mineralogy and Hydrological Controls on “Hotspots” of Dust Emission at Etosha Pan, Namibia

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.
Abstract Ephemeral lake beds are globally significant sources of atmospheric mineral dust aerosols, yet emissions from these landforms exhibit considerable spatial and temporal variability. The complex interactions between climatic drivers and surface properties that govern dust emissions remain poorly understood, contributing to uncertainties in model
N. S. Wallum, R. G. Bryant, G. F. S. Wiggs, R. L. Reynolds, H. L. Goldstein, J. A. Leidelmeijer, J. M. Nield, M. C. Baddock   +7 more
wiley   +1 more source

Ceramic Production and Geodiversity in Iron Age Iberia: An Archaeometric Study of Pottery from Castrejón de Capote (SW Spain)

Archaeometry, Volume 68, Issue 4, Page 659-673, August 2026.
ABSTRACT The hillfort of Castrejón de Capote is one of the best investigated settlements of Late Iron Age southwest Iberia. Located in the territory that the classical sources attributed to the Celtici, it was occupied between the early 4th and the 1st centuries bce.
Beatrijs de Groot, Luis Berrocal‐Rangel, Manuel Fernández‐Götz   +2 more
wiley   +1 more source

Revealing the Magmatic Impulse Emplacement and Evolution Path of Kimberlite in Southern Liaoning through Mineralogical Characteristics of the Phlogopite Zone

Applied Sciences
Phlogopite is a crucial indicator for effectively constraining the magmatic evolution and emplacement mechanism of kimberlite. In this study, samples were collected from the No. 110 kimberlite pipe within diamond belt I and the No.
Sishun Ma, Ende Wang, Haitao Fu
doaj   +1 more source

Fission track studies on hornblende, biotite and phlogopite from Sweden [PDF]

Bulletin of the Geological Society of Finland, 1972
Fission track studies and K-Ar dating on three silicate minerals from Sweden have given the following results: Fission track age K—Ar age RM 07249 hornblende, Malmberget, Fragment 1 1255 m.y. 1875 m.y. » 2 450 » RM 620569 biotite, Ingelsbo Fragment 1 305
E. Welin, I. Lundström, G. Åberg
doaj   +1 more source

Insights on Lightning‐Induced Remanent Magnetization From High‐Current Impulse Experiments

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract Lightning strikes generate intense transient magnetic fields capable of inducing strong and complex remanent magnetizations in rocks, potentially overprinting their original paleomagnetic record. To investigate the mechanisms and outcomes of lightning‐induced remanent magnetization, we conducted controlled high‐current impulse experiments on ...
M. De Andrade Nunes, R. I. F. Trindade, J. Salminen, R. I. Albrecht, A. Silva Neto, G. G. C. Pimentel   +5 more
wiley   +1 more source

Occurrence and Provenance of KREEP Components in Glassy Agglutinates From Chang'e‐5 Lunar Regolith

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract This study investigates the petrogenesis of glassy agglutinates in a polished section of the Chang'e‐5 lunar regolith sample CE5C0800YJYX018GP through integrated petrographic, mineralogical, and geochemical analyses of four representative particles (18GP‐01 to 18GP‐04).
Shuai Ma, Zhipeng Xia, Bingkui Miao
wiley   +1 more source

Melting of subducted sediments reconciles geophysical images of subduction zones

Nature Communications, 2021
Here, the authors identify that magnetotelluric conductive anomalies commonly observed on the trenchward-side of volcanic arcs in subduction zones can be explained by subducted sediments.
M. W. Förster, K. Selway
doaj   +1 more source

The Origin of Carbonate Magmas Predating and Accompanying Main‐Phase LIPs Eruptions

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Some large igneous provinces (LIPs) are associated with precursory carbonatite eruptions. Models for precursory carbonatites invoking partial melting of a carbonate metasomatized lithosphere appear implausible, given the long time needed for heat conduction from the plume head.
Cinzia G. Farnetani, Mark A. Richards
wiley   +1 more source

Effects of Phase Interconnection and Chemical Interactions on the Strength of Experimentally Deformed Quartz‐Phlogopite Mixtures

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract To gain insigths into rheology and deformation mechanisms of phyllosilicate‐bearing crustal shear zones, deformation experiments on quartz‐phlogopite assemblages were conducted in general shear, with varying proportions of phlogopite (from 0% to 100%), at 800°C, 1 GPa and a bulk strain rate of ∼2 × 10−5s−1.
Laura Airaghi, Khadija Alaoui, Gabriel Serrano‐López, Hugues Raimbourg, Holger Stünitz, Jacques Précigout, Ida Di Carlo, Cécile Genevois, Weijia Zhan   +8 more
wiley   +1 more source

Variable Sr Diffusion and Implications for Rb–Sr Biotite Geochronology

Journal of Metamorphic Geology, Volume 44, Issue 6, Page 417-439, July 2026.
ABSTRACT The rubidium–strontium (Rb–Sr) system has a long pedigree as a geochronological tool that relies on the application of an isochron approach. In particular, biotite contains strongly radiogenic Rb–Sr isotopes, and thus can yield meaningful crystallisation or cooling ages via this approach. However, the response of the Rb–Sr system in biotite to
Riley Rohrer, Christopher L. Kirkland, Hugo Olierook, Tim Johnson, Katy Evans   +4 more
wiley   +1 more source