Results 61 to 70 of about 2,463 (203)

Six Ca‐Mg‐Fe Carbonate Reference Materials for In Situ Measurement of Oxygen and Carbon Isotope Ratios

Geostandards and Geoanalytical Research, Volume 50, Issue 1, Page 155-179, March 2026.
Key Points Six new Ca‐Mg‐Fe carbonate reference materials are available to the global geochemical community for calibrating oxygen and carbon isotope ratios by SIMS. Significant compositional matrix effects were observed in the dolomite‐ankerite and magnesite‐siderite series during SIMS analysis. Compositional matrix effects correlate with Fe variation.
Maria Rosa Scicchitano, Chris Harris, Julie Luyt, Andreas Pack, Tommaso di Rocco, Torsten Vennemann, Franziska D.H. Wilke, Anja M. Schleicher, Johannes Glodny, Kimberly T. Tait, Simon Philippo   +10 more
wiley   +1 more source

Critical reappraisal of Balangero chrysotile and mesothelioma risk

Epidemiology, Biostatistics and Public Health, 2022
Background Balangero, 40 km northwest of Torino in the Piedmonte Region, was home to the largest and most active chrysotile mine in Europe operating from 1916 - 1990 and employed over 300 men at any one time.
Edward B. Ilgren, Frederick D. Pooley, Yumi M Kumiya, John A. Hoskins   +3 more
doaj  

Quantifying Vein Network Permeability in Dehydrated Serpentinites Using Thermodynamics and Generative AI

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract Fluids released from subducting hydrated rocks influence volcanism, tectonics, and geochemical cycling, but the mechanisms of fluid escape in subduction zones remain poorly understood. We address this issue by investigating the Erro‐Tobbio meta‐serpentinites (ET‐MS), Italy, exhumed serpentinite rocks that preserve extensive dehydration vein ...
Austin Arias, Lisa Eberhard, Andreas Beinlich, Timm John, Alissa Kotowski, Oliver Plümper   +5 more
wiley   +1 more source

Fluoro-tremolite, IMA 2016-018

, 2016
Fluoro-tremolite Ca2Mg5Si8O22F2 Limecrest-Southdown quarry, Sparta, New Jersey, USA Amphibole supergroup Monoclinic: C2/m; structure determined a = 9.846(2), b = 18.050(3), c = 5.277(1) Å, β = 104.80(2)° 3.381(57), 3.276(38), 3.126(67), 2.940(43),
Oberti, Roberta, Camara, Ferdinando, Bellatreccia, Fabio, Radica, F., GIANFAGNA, Antonio   +4 more
core   +1 more source

Chemical‐Thermomechanical Modeling of Open‐System Mass Transfer: Application to the Subduction Interface

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract One of the main limitations in simulating subsolidus metasomatism is the decoupling between thermomechanical models and chemical/thermodynamic modeling. This decoupling amplifies the uncertainty associated with mass transport. Here, we introduce a fluid‐rock chemical‐thermomechanical interaction scheme, which integrates thermodynamic modeling (
Jun Ren, Manuele Faccenda, Xin Zhong, Matthieu E. Galvez, Jianfeng Yang, Nicolas Riel   +5 more
wiley   +1 more source

Composition and Genesis of Dark Dolomite-Type Nephrite in the Kavokta Deposit, Middle Vitim Mountain Country, Russia

Geosciences
The Kavokta deposit in Russia contains gray and black dolomite-type nephrite, which is in high demand commercially. Although the fact that black nephrite has been found in several deposits, the reasons for its color are not well understood.
Evgeniy V. Kislov, Irina Yu. Kotova, Viktor F. Posokhov, Artem V. Trofimov, Elena A. Khromova   +4 more
doaj   +1 more source

Interplay Between Mechanical and Petrochemical Models on the Fluid Extraction From Subduction Zones

Journal of Metamorphic Geology, Volume 44, Issue 2, Page 85-111, February 2026.
ABSTRACT The breakdown of hydrous minerals during subduction results in a densification of the rocks, producing volume changes that can trigger fluid pressure fluctuations and hydrofracturing. These volume changes are controlled by the Clapeyron slope of the reaction and are quantified here using a macroscopic framework that integrates a zero ...
Thorsten Andreas Markmann, Pierre Lanari   +1 more
wiley   +1 more source

Gemological Study of Black Nephrite from Dahua, Guangxi Province, China

Crystals
Dahua in Guangxi is an important soft jade mining area in southern China. Despite this, research on the nephrite from this region, particularly on the coloring mechanism of black nephrite, remains limited.
Mingying Cui, Mingyue He, Mei Yang, Bijie Peng, Shaokun Wu   +4 more
doaj   +1 more source

Global Copper Deposit Dataset: A New Open‐Source Database for Advanced Data Analysis and Exploration Targeting

Geoscience Data Journal, Volume 13, Issue 1, January 2026.
We build a new, open‐source global copper deposit dataset (GCDD), facilitating AI‐driven data analysis for exploration targeting and improving our understanding of copper mineralizing systems and their mappable expressions. The GCDD hosts information about 1483 copper deposits worldwide, capturing key deposit attributes such as location, genetic type ...
Bin Wang, Renguang Zuo, Oliver P. Kreuzer   +2 more
wiley   +1 more source

Chrysotile and tremolite asbestos fibres in the lungs and parietal pleura of Corsican goats.

, 2002
BACKGROUND AND AIMS: Environmental exposures to chrysotile and tremolite from the soil cause pleural plaques and mesothelioma in northeast Corsica. Goats grazing in the contaminated areas inhale asbestos fibres. We used this natural animal model to study
Viallat, J R, Dumortier, Pascal, Broucke, Ingrid, Boutin, Claude, Rey, F, De Vuyst, Paul   +5 more
core   +1 more source