Results 41 to 50 of about 911 (134)

Magmatic, Metamorphic and Structural History of the Variscan Lizard Ophiolite and Metamorphic Sole, Cornwall, UK

Tectonics, Volume 43, Issue 4, April 2024.
Abstract The Lizard ophiolite, Cornwall, South‐West England, is the largest and best‐preserved ophiolite within the Variscan orogenic belt. It forms part of the Rheic‐Rhenohercynian suture zone, and was obducted northwestward onto the passive continental margin of Avalonia (Laurussia) during the Middle Devonian.
Tobermory C. Mackay‐Champion, Michael P. Searle, Simon Tapster, Nick M. W. Roberts, Robin K. Shail, Richard M. Palin, George H. Willment, Josh T. Evans   +7 more
wiley   +1 more source

Morphological characteristics of asbestos in ground bulk mineral powders

Frontiers in Geochemistry
IntroductionDifferences exist in the morphological features of asbestos and the abilities of measuring tools over the spectrum of the particle size distribution in ground bulk mineral powders.
Julie Warner Pier
doaj   +1 more source

Investigating the Concentration and types of Asbestos Fibers using PCM and SEM in a Cement- Asbestos Industry

Salāmat-i kār-i Īrān, 2012
Background and aims : Asbestos minerals are divided into two main groups including serpentine and amphiboles and each has one or more subgroups. These minerals have been used in industrial products such as cement-asbestos sheet and pipe,
H Marioryad, H Kakooei
doaj  

Chemical, thermal and infra-red characterization of chrysotile modes from the Wadi Daftah serpentinite (Semail ophiolite), United Arab Emirates

Discover Geoscience
Serpentine minerals, either polymorphs or polytypes (mostly chrysotile, lizardite and antigorite), are hardly distinguished in ophiolitic serpentinites and serpentinized peridotite unless sophisticated mineralogical tools are applied.
Mohamed Th. S. Heikal, Adel A. Surour, Abdelaziz A. Said   +2 more
doaj   +1 more source

Structurally controlled growth of fibrous amphibole in tectonized metagabbro: constraints on asbestos concentrations in non-serpentinized rocks

Journal of the Geological Society, 2019
The nucleation and concentration of asbestos in rocks are mostly associated with mechanisms of fibre formation, combined with the water-dependent mineralogical alteration produced during the serpentinization of ultramafic masses. Very little is known about the structural settings and tectonic histories that influence and control the occurrence of ...
Gianluca Vignaroli, Federico Rossetti, Andrea Billi, Thomas Theye, Girolamo Belardi   +4 more
openaire   +5 more sources

Research on Qualitative Analysis of Serpentine Asbestos Using TG-DTA-MS

BUNSEKI KAGAKU, 2021
Daisuke SAWAKI, Yasuhide FURUTANI, Atsushi YAMAZAKI   +2 more
openaire   +2 more sources

[Effect of water sprinkling on total dust and mineral fiber concentration during serpentine asbestos processing].

Medycyna pracy, 1994
By means of personal air sampler and Fibre Monitor FM-7400 concentrations of total dust and respirable mineral fibre were measured at work-posts, after sprinkling places with the highest emission of dust, in the plant where serpentine asbestos, used as road stone, was processed.
H, Woźniak, E, Wiecek, W, Pelc, D, Dobrucka, B, Opalska   +4 more
openaire   +1 more source

Data from Low Exposures to Amphibole or Serpentine Asbestos in Germline <i>Bap1</i>-mutant Mice Induce Mesothelioma Characterized by an Immunosuppressive Tumor Microenvironment

<div>Abstract<p>Asbestos and <i>BAP1</i> germline mutations are risk factors for malignant mesothelioma (MM). While it is well accepted that amphibole asbestos is carcinogenic, the role of serpentine (chrysotile) asbestos in MM has been debated.
Joseph R. Testa, Kathy Cai, Andres J. Klein-Szanto, Hatice U. Osmanbeyoglu, Parham Hadikhani, Mitchell Cheung, Maggie Ruan, Eleonora Sementino, Yuwaraj Kadariya   +8 more
openaire   +1 more source

FIGURE 6 from Low Exposures to Amphibole or Serpentine Asbestos in Germline <i>Bap1</i>-mutant Mice Induce Mesothelioma Characterized by an Immunosuppressive Tumor Microenvironment

<p>Expression of IL6 and IL10 in ascites and Bap1 and p16^Ink4a in MM tumors from chrysotile-exposed <i>Bap1^+/⁻</i> mice. <b>A,</b> Concentration of IL6 in ascites of <i>Bap1^+/⁻</i> mice compared ...
Joseph R. Testa, Kathy Cai, Andres J. Klein-Szanto, Hatice U. Osmanbeyoglu, Parham Hadikhani, Mitchell Cheung, Maggie Ruan, Eleonora Sementino, Yuwaraj Kadariya   +8 more
openaire   +1 more source

FIGURE 2 from Low Exposures to Amphibole or Serpentine Asbestos in Germline <i>Bap1</i>-mutant Mice Induce Mesothelioma Characterized by an Immunosuppressive Tumor Microenvironment

<p>TIME of crocidolite-induced MMs from <i>Bap1^+/−</i> mice. <b>A,</b> Serial sections of a crocidolite-induced MM from <i>Bap1-</i>mutant mouse stained with several different immune cell markers: CD3 (T cells; arrows); CD45R (B cells); F4/80 (macrophages; arrows); and NK1.1 (natural ...
Joseph R. Testa, Kathy Cai, Andres J. Klein-Szanto, Hatice U. Osmanbeyoglu, Parham Hadikhani, Mitchell Cheung, Maggie Ruan, Eleonora Sementino, Yuwaraj Kadariya   +8 more
openaire   +1 more source