Results 191 to 200 of about 431,388 (374)
High‐Titanium Zircon Rims in Rhyolite – A Reflection of Adiabatic Ascent?
Geological Journal, EarlyView.The ascent of granitic magma from source to emplacement is rapidly achieved through dyking, resulting in negligible heat loss to the surrounding wallrock (i.e., adiabatic). Zircon growth during ascent can record the changing magma conditions including adiabatic cooling and heating, resulting in high titanium rims on low titanium cores without ...
Carson Kinney +2 more
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The 1984 Mauna Loa eruption and planetary geolgoy [PDF]
In planetary geology, lava flows on the Moon and Mars are commonly treated as relatively simple systems. Some of the complexities of actual lava flows are illustrated using the main flow system of the 1984 Mauna Loa eruption. The outline, brief narrative,
Moore, Henry J.
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XIV. Description of a volcanic eruption in the Island of Sumbawa [PDF]
Grace Anne Stewart
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Geological Journal, EarlyView.Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito +8 more
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Seismic Eruption Teaching Modules [PDF]
This site presents educational modules for teaching about earthquakes, volcano eruptions and related plate tectonic concepts using an interactive computer program for mapping called Seismic/Eruption (also called SeisVolE). The program includes up-to-date
Lawrence Braile
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La Montagne Pelée et ses Eruptions . Par A. Lacroix. Ouvrage Publié par l'Académie des Sciences sous les Auspices des Ministères de l'Instruction publique et des Colonies, Paris. 1904. Pp. xxii + 662. 30 plates and numerous text figures. [PDF]
, 1905 Ernest Howe
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The relationship between cellular protein content and selenium accumulation in freshwater microalgae
Integrated Environmental Assessment and Management, EarlyView.Abstract Variability in the bioconcentration of selenium (Se) by primary producers at the base of the food web results in uncertainty in predictions of bioaccumulation and ecological risk to higher trophic level organisms. Water chemistry, speciation of Se, and periphyton community composition have all been suggested as factors that contribute to ...
Courtney Bogstie +3 more
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Case of Herpetic Eruption in the Course of Branches of the Brachial Plexus, followed by Partial Paralysis in Corresponding Motor Nerves [PDF]
W. H. Broadbent
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