Results 61 to 70 of about 849 (144)

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

open access: yesArchaeometry, 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   +2 more
wiley   +1 more source

Subduction Initiation and Early Subduction Zone Development: Insights From the P–T–t Path of the Bay of Islands Metamorphic Sole

open access: yesJournal of Metamorphic Geology, Volume 44, Issue 7, Page 510-536, August 2026.
ABSTRACT The processes involved during subduction initiation (SI) remain poorly constrained, in part due to the rarity of geological archives. Ophiolites and their underlying metamorphic soles are thought to form during subduction zone infancy and may thus provide critical constraints. Metamorphic soles are derived from oceanic crust of the lower plate
François Fournier‐Roy   +11 more
wiley   +1 more source

Ductile Extrusion Triggered by Continental Collision in NE Brazil

open access: yesTerra Nova, Volume 38, Issue 4, Page 266-277, August 2026.
ABSTRACT The Borborema Province in northeastern Brazil hosts one of the world's largest strike‐slip shear zone networks, active during the late Neoproterozoic assembly of West Gondwana. Whether these shear zones initiated during active continental collision or as a post‐orogenic response to far‐field stresses remains debated.
L. R. Tesser   +6 more
wiley   +1 more source

Comparison of various methodological approaches to model asbestos thresholds for mesothelioma

open access: yesFrontiers in Public Health
BackgroundThere is evidence to support several modes of action (MoAs), and particularly non-genotoxic MoAs, for mesothelioma induced by asbestiform elongate mineral particles (EMPs).
Julie E. Goodman   +2 more
doaj   +1 more source

METASOMATIC AND MAGMATIC PROCESSES IN THE MANTLE LITHOSPHERE OF THE BIREKTE TERRAIN OF THE SIBERIAN CRATON AND THEIR EFFECT ON THE LITHOSPHERE EVOLUTION

open access: yesГеодинамика и тектонофизика, 2015
The area of studies covers the north-eastern part of the Siberian craton (the Birekte terrain), Russia. The influence of metasomatic and magmatic processes on the mantle lithosphere is studied based on results of analyses of phlogopite- and phlogopite ...
Lidia V. Solov’eva   +5 more
doaj   +1 more source

From Magma to Atmosphere: Halogen Fluxes During Volcanic Eruptions

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract Volcanic eruptions release significant quantities of volatile elements into the atmosphere and stratosphere. Plinian eruptions are particularly efficient at dispersing these elements due to their large magma volumes and high eruption columns.
T. d’Augustin   +11 more
wiley   +1 more source

Field and Experimental Observations Show Elevated Shear Strength of Active Margin Sediments Requires Processes Beyond Normal Consolidation

open access: yesGeophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Near‐seafloor marine sediments on active margins have been shown to be stronger than those on passive margins. However, the reasons for this are not fully understood. To investigate the role of intrinsic properties, we performed resedimentation and oedometer tests and measured undrained shear strength, grain size, mineralogy, and plasticity on
Bailey Fitzgerald   +3 more
wiley   +1 more source

AMPHIBOLE-PHLOGOPITE XENOLITHS FROM KIMBERLITES AS EVIDENCE OF METASOMATIC PROCESSES IN THE LITHOSPHERIC MANTLE BENEATH KUOIKA FIELD

open access: yesГеодинамика и тектонофизика
This paper devoted to the mantle xenoliths with evidence of modal metasomatic alteration from the Obnazhennaya kimberlite pipe (Kuoika kimberlite field).
T. V. Kalashnikova   +2 more
doaj   +1 more source

Experimental study of the interaction of model garnet-harzburgite with H2O – CO2 – (K, Na)Cl fluids at 5 GPa and 1 100 °С

open access: yesVestnik MGTU
In modern petrological and geochemical literature, considerable attention is paid to the issue of the transformation of mantle rocks during their interaction with fluids and melts of various origins.
Butvina V. G., Limanov E. V.
doaj   +1 more source

Poikilitic hornblende pyroxenite in the southern end of the Abukuma Mountains, Northeast Japan, as result of adakitic magmatism

open access: yesFrontiers in Geochemistry
Amphibole plays a pivotal role in mediating the flux of volatiles and partial melting that ultimately contribute to arc magmatism. The influence of amphibole from the lower crust to the upper mantle remains unclear due to limited opportunities for ...
Akira Wakazono   +6 more
doaj   +1 more source

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