Studies on the compounds lipids from X-ray irradiated animal,1. [PDF]
For the purpose to reveal the mechanism of the biological indirect action of X-rays the author has conducted the analysis of the compound lipids of the organs of the rabbits irradiated with X-rays.
Ohara, Sachiko
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Silicon (Si) is the most abundant element present in the Earth's crust besides oxygen. However, the exact biological roles of silicon remain unknown. Moreover, the ortho-silicic acid (H4SiO4), as a major form of bioavailable silicon for both humans and ...
Jurkić Lela Munjas +3 more
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Introduction The widespread Cenozoic magmatic assemblages in Iran host a variety of ore deposits including porphyry Cu-Mo-Au, skarn type ores, and epithermal base and precious metals deposits.
Zeinab Ramezani +2 more
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Stratigraphy and chronology of the Stent tephra, a c. 4000 year old distal silicic tephra from Taupo Volcanic Centre, New Zealand. [PDF]
Tephrostratigraphic and chronologic studies in two areas of the North Island have identified a previously unrecorded, thin, distal silicic tephra derived from the Taupo Volcanic Centre.
Alloway, Brent V. +4 more
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Large Silicic Eruptions, Episodic Recharge, and the Transcrustal Magmatic System
Large silicic eruptions result from rapid evacuation of large, upper crustal reservoirs of silicic magmas. These silicic magmas are thought to be replenished by melt extracted from underlying crystal‐rich source mushes, but the timescales and mechanisms ...
Boda Liu, Cin‐Ty Lee
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New Conceptual Model for the Magma-Hydrothermal-Tectonic System of Krafla, NE Iceland
The complexity of the Krafla volcano and its geothermal system(s) has puzzled geoscientists for decades. New and old geoscientific studies are reviewed in order to shed some light on this complexity. The geological structure and history of the volcano is
Knútur Árnason
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Emplacement of the Rocche Rosse rhyolite lava flow (Lipari, Aeolian Islands) [PDF]
The authors acknowledge Airbus Defence and Space for providing satellite imagery, financial support from Keele University and fieldwork grants from the Mineralogical Society of Great Britain and Ireland and the Volcanic and Magmatic Studies Group.
Bullock, Liam A +2 more
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Iron, silicate, and light co-limitation of three Southern Ocean diatom species [PDF]
The effect of combined iron, silicate, and light co-limitation was investigated in the three diatom species Actinocyclus sp. Ehrenberg, Chaetoceros dichaeta Ehrenberg, and Chaetoceros debilis Cleve, isolated from the Southern Ocean (SO).
A Abelmann +50 more
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New insights on the occurrence of peperites and sedimentary deposits within the silicic volcanic sequences of the Paraná Magmatic Province, Brazil [PDF]
The PMP (Paraná Magmatic Province) is characterized by lava flows of the Early Cretaceous Serra Geral Formation which covers about 75% of the Paraná Basin (southern and southeastern Brazil), composed of a thick (up to 1600 m) volcanic sequence formed by ...
A. C. F. Luchetti +4 more
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Using silicon isotopes to understand the role of the Southern Ocean in modern and ancient biogeochemistry and climate [PDF]
The growth of siliceous phytoplankton, mainly diatoms, in the Southern Ocean influences the preformed nutrient inventory in the ocean on a global scale.
Brzezinski, Mark, Hendry, Katharine
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