Amphibole (Amp) plays a crucial role in the study of several earth and planetary processes. One its most common applications is thermobarometry, especially for volcanic-magmatic systems. However, many thermobarometers require input melt composition, which not always available volcanic products (e.g., partially crystallized melts or devitrified glasses), show rather high errors characterizing de...

This study investigated the applicability of an HY-differential mobility analyzer with an optical particle counter (HY-DMA/OPC), named as KOFAM, for counting fibrous matters in real time. Fibers separated from particles by the HY-DMA were counted with an OPC. To assess the KOFAM performance, the proposed method and the conventional gold standard phase contrast microscopy (PCM) method were compa...

This Article discusses the current posture of “take-home” asbestos litigation and distinguishes the lack of merit of such cases from previous “take-home” asbestos cases. It further identifies sources other than asbestos that commonly cause mesothelioma that lead to “take-home” litigation. Moreover, this Article articulates the issues with the any exposure causation theory typically used by expe...

This paper empirically studies U.S. and Canadian asbestos mining firms’ divestment process when the asbestos industry faced a long-run decline in demand. I develop a dynamic oligopoly model of capacity adjustment and exit based on Ericson and Pakes (1995). I calibrate my model to a panel data of the U.S. and Canadian asbestos mining industry’s capacities and exit/stay status over 1968-2002, and...

Introduction: The shergottite basalts, meteorites of Martian origin, contain rare small grains (~10-100 μm diam.) of kaersutite, a Ca-amphibole rich in Al and Ti [1-3]. Kaersutites have been used to estimate the water content of shergottites and the Martian mantle [4]; however, questions remain about the original water content of the amphiboles [5] and if they formed from magma [6]. We investig...

BACKGROUND Vermiculite from the mine near Libby, Montana, is contaminated with tremolite asbestos and other amphibole fibers (winchite and richterite). Asbestos-contaminated Libby vermiculite was used in loose-fill attic insulation that remains in millions of homes in the United States, Canada, and other countries. OBJECTIVE This report describes asbestos-related occupational respiratory dise...

OBJECTIVES To find the numbers of mesotheliomas in Calderdale over the period 1966-94 and determine their relation to asbestos exposure, pathology, and mineral fibre burden within the lungs of affected subjects. METHODS Cases were entered into the study if the subject has been diagnosed with mesothelioma after postmortem and histopathological examinations. Occupational data were obtained main...

Glossary andesite magma or volcanic rock is characterised by intermediate SiO2 concentration. Andesite magmas have rheological properties that are intermediate between basalt and rhyolite magmas. Silica content in andesites ranges from approximately 52 to 66 weight percent. Common minerals in andesite include plagioclase, amphibole and pyroxene. Andesite is typically erupted at temperatures bet...