Results 41 to 50 of about 2,463 (203)
Terra Nova, EarlyView.ABSTRACT The Paleoproterozoic Talvivaara mudstone is a very large sulfidic Ni‐Co deposit that records enhanced organic matter accumulation during the global Shunga Event. Here, rock geochemistry and microscale S and Fe isotope composition of in situ pyrrhotites and pyrites are studied in well‐characterised, well‐preserved drill core samples.
Raimo Lahtinen +3 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.Abstract The cratonic lithospheric mantle records complex metasomatic processes and is frequently tapped by alkaline magmatism, offering a unique opportunity to trace the progressive evolution of the mantle. In the present contribution, we investigate a newly identified calc‐alkaline lamprophyre field from the Neoarchean Jonnagiri Schist Belt, Eastern ...
Sourav Naskar +6 more
wiley +1 more source
Origin of a Diopside–Tremolite Assemblage near Tweed, Ontario
, 1973 An occurrence of silicated dolomitic marble is described in which diopside zones are separated from the host dolomite by symmetrical zones of tremolite and calcite with interstitial quartz. Zoned tremolite–calcite veinlets are also found in the dolomite.
C. Cermignani, G. M. Anderson
core +1 more source
Geology and Geochemistry of the Early Proterozoic Kortejärvi and Laivajoki Carbonatites, Central Fennoscandian Shield, Finland [PDF]
Bulletin of the Geological Society of Finland, 1997 This paper provides for the first time extensive petrological, mineralogical and geochemical data on the early Proterozoic Kortejärvi and Laivajoki carbonatites, northern Finland, which form metamorphosed and highly strained bodies 2 and 4 km long within
J. Nykänen, K. Laajoki, J. Karhu
doaj +1 more source
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.Abstract At slow‐spreading mid‐ocean ridges large scale detachment faults partly accommodate the spreading process. The mafic and ultramafic rocks at the ridges are infiltrated by water and change their mineralogy. Subsequently or contemporaneously to these reactions, detachment faulting takes place.
R. Kuehn +4 more
wiley +1 more source
Surface reactivity of amphibole asbestos. A comparison between two tremolite samples with different surface area [PDF]
, 2018 Surface reactivity of a fibrous tremolite sample from Castelluccio Superiore (Italy) was investigated by means of free radical generation following incubation in H2O2solution buffered at pH 7.4, for several time points, ranging from 1 day to 1 month ...
Pacella, Alessandro +4 more
core +1 more source
Potentially toxic elements (PTEs) associated with asbestos chrysotile, tremolite and actinolite in the Calabria region (Italy) [PDF]
, 2020 [EN]Potentially toxic elements (PTEs) hosted in asbestos elongate mineral particles is one of the factors that determines their toxic/pathogenic effects.
Bloise, Andrea +3 more
core +1 more source
Heavy Liquid Separation Method for Enhancement of Trace Asbestos Detection
CrystalsPowder X-ray diffraction (XRD) is a widely accepted technique for detecting trace asbestos content in solid samples. However, accurately quantifying asbestos concentrations below 0.5 wt% presents significant challenges with XRD alone.
Sasithorn Chornkrathok +3 more
doaj +1 more source
Environmental Health and Preventive Medicine, 2018 The present review summarizes the results of several follow-up studies assessing an asbestos product manufacturing plant in Chongqing, China, and discusses three controversial issues related to the carcinogenicity of asbestos.
Eiji Yano
doaj +1 more source
Metamorphosed and deformed pillows from Losomäki: evidence of sub-aqueous volcanism in the Outokumpu association, eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1981 Pillow lavas, some highly deformed and now seen as banded diopside amphibolites and tremolite-epidote-chlorite rocks (»barren skarn»), occur within the lower Proterozoic Outokumpu rock association at Losomäki, 50 km N.W. of Outokumpu.
A.F. Park, D.R. Bowes
doaj +1 more source