Volcanica, 2022 Thríhnúkagígur Volcano, Iceland, is a composite spatter cone and lava field characteristic of basaltic fissure eruptions. Lava drainback at the end of the eruption left ~60 m of evacuated conduit, and a 4 × 104 m3 cave formed by the erosion of ...
Michael R Hudak +4 more
doaj +1 more source
Deep lithospheric dynamics beneath the Sierra Nevada during the Mesozoic and Cenozoic as inferred from xenolith petrology [PDF]
, 2001 Peridotite xenoliths erupted in late Miocene basalts (~8 Ma) in the central Sierra Nevada sample a lithosphere that is vertically stratified in terms of age and thermal history.
Brimhall, George H., Jr. +2 more
core +1 more source
Table Cape vent xenolith suite, northwest Tasmania: Mineralogy and implications for crust-mantle lithology and Miocene geotherms in Tasmania. [PDF]
, 2005 The Miocene Table Cape vent erupted a diverse mantle-crust xenolith suite within its fractionated nephelinitic matrix. Assemblages include mantle metaperidotites, garnet-metawebsterites and rarer garnet-metadinopyroxenitcs, garnct-mctawehrlites ...
Pogson, RE, Raynor, LR, Sutherland, FL
core +3 more sources
Геофизический журнал, 2014 Xenolites of white anorthosites have been found in anorthosites of the main phase of the Novom-irgorod massif of the Korsun-Novomirgorod pluton (the Ukrainian Shield, the Ingul megablock).
E. E. Shestopalova +3 more
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Геодинамика и тектонофизика, 2022 This paper reports the results on the composition of lithosphere mantle under the Mirny kimberlite field. The authors investigated 57 samples of the mantle xenoliths collected from the Mir pipe.
T. V. Kalashnikova +3 more
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An Assessment of ^(40)Ar-^(39)Ar Dating of Incompletely Degassed Xenoliths [PDF]
, 1982 The possibility of measuring the age of eruption of Pleistocene lavas by ^(40)Ar-^(39)Ar analysis of entrapped ancient potassic xenoliths is demonstrated by a study of model systems.
Gillespie, A. R. +2 more
core +1 more source
Eruption Age of a Pleistocene Basalt From ^(40)Ar-^(39)Ar Analysis of Partially Degassed Xenoliths [PDF]
, 1983 We have applied ^(40)Ar−^(39)Ar dating to potassium-rich granitic xenoliths and host basalt from the Pleistocene Big Pine volcanic field, California. These xenoliths had been partially degassed upon their inclusion in the basaltic lava.
Gillespie, A. R. +2 more
core +1 more source
Active megadetachment beneath the western United States [PDF]
, 2008 Geodetic data, interpreted in light of seismic imaging, seismicity, xenolith studies, and the late Quaternary geologic history of the northern Great Basin, suggest that a subcontinental-scale extensional detachment is localized near the Moho.
Allmendinger +172 more
core +2 more sources
Lower crustal zircons reveal Neogene metamorphism beneaththe Pannonian Basin (Hungary)
Open Geosciences, 2015 Neogene alkaline intraplate volcanic depositsin the Pannonian Basin (Hungary) contain many lowercrustal granulite-facies xenoliths. U-Pb ages have been determinedfor zircons separated from a metasedimentaryxenolith, using LA-ICPMS and SHRIMP techniques ...
Downes Hilary +4 more
doaj +1 more source
Stratigraphy and textural characteristics of the 1982–83 tephra of Galunggung volcano (Indonesia): implications for volcanic hazards [PDF]
, 2000 91.40.RsThe Galunggung volcano in western Java (Indonesia) was the site of historical activity in 1822, 1894, 1918, and 1982–83, located in a pre-historical horseshoe-shaped caldera.
Bourdier, Jean-Louis +2 more
core +3 more sources