نتایج جستجو برای: obsidian

تعداد نتایج: 368  

Journal: :Journal of Volcanology and Geothermal Research 2021

The youngest (last 1500 years) volcanic eruptions of Lipari, within the Aeolian Archipelago, produced prominent pumice cone Monte Pilato and obsidian lava flows Rocche Rosse Forgia Vecchia, concentrated in north-eastern sector island as well highly dispersed white-coloured, fine-grained tephra layers rhyolitic composition terrestrial marine settings on regional scale. Here we describe detail st...

Journal: :Revista Mexicana De Fisica 2023

In the present study, radiation shielding characteristics of borogypsum, which is a waste generated during boric acid production in Turkey, was analyzed. For this purpose, we used recently developed Phy-X/PSD software, provided to calculate parameters such as mass attenuation coefficient, linear half-value layer, tenth-value effective atomic number, total cross section, electronic conductivity,...

Journal: : 2021

The geological surveys of Avla Dağ conducted by Giorgio Pasquare for the General Directorate Mineral Research and Exploration (MTA) in 1963–1964 revealed dense traces a lithic tool industry based on obsidian. Ian A. Todd, who comprehensively surveyed central Anatolia, analyzed material collected. Todd jointly published their results Anatolian Studies 1965, paper titled “The Chipped Stone Indust...

Journal: :Applied and environmental microbiology 2002
Kazem Kashefi Dawn E Holmes Anna-Louise Reysenbach Derek R Lovley

It has recently been recognized that the ability to use Fe(III) as a terminal electron acceptor is a highly conserved characteristic in hyperthermophilic microorganisms. This suggests that it may be possible to recover as-yet-uncultured hyperthermophiles in pure culture if Fe(III) is used as an electron acceptor. As part of a study of the microbial diversity of the Obsidian Pool area in Yellows...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید