Results 71 to 80 of about 1,147,354 (242)
Replenishment of magma chambers by light inputs [PDF]
Journal of Geophysical Research: Solid Earth, 1986 Magma chambers, particularly those of basaltic composition, are often replenished by an influx of magma whose density is less than that of the resident magma. This paper describes the fundamental fluid mechanics involved in the replenishment by light inputs.
Herbert E. Huppert +3 more
openaire +1 more source
Petrology and geochemistry of gabbroic and ultrabasic rocks from eastern Rhum [PDF]
, 1986 This work is concerned with the lower part of the Eastern Layered Series (LELS) of Rhum, and with the marginal relationships of the ultrabasic complex in eastern Rhum.
Faithfull, John William, Faithfull, J.W
core
Magma mobilization by downward-propagating decompression of the Eyjafjallajökull volcanic plumbing system [PDF]
Detailed observations of the 2010 Eyjafjallajökull eruptions in Iceland show seismic activity propagating vertically through the entire crust during a ten-week period of volcanic unrest comprising multiple eruption episodes.
White, R. S. +4 more
core +1 more source
Geofluids, 2019 Deep-seated geothermal reservoirs beneath calderas have high potential as sources of renewable energy. In this study, we used an analysis of melt inclusions to estimate the amount of water input to the upper crust and quantify the properties of a deep ...
Fajar F. Amanda +4 more
doaj +1 more source
Boulder of orbicular rapakivi in Taivassalo, southwestern Finland [PDF]
Bulletin of the Geological Society of Finland, 1983 A boulder of an orbicular rapakivi was found in Taivassalo, close to the southern contact of the Vehmaa rapakivi area in southwestern Finland. Many features, e.g.
N. Edelman
doaj +1 more source
, 2016 The Tuolumne Intrusive Complex, an upper-crustal (7–11 km emplacement depths), incrementally constructed (95–85 Ma growth history) plutonic complex (~1100 km2), preserves evidence from several data sets indicating the repeated, multiscale, magmatic ...
S. Paterson +3 more
semanticscholar +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.Abstract Oceanic Core Complexes (OCCs) in back‐arc basins are not as thoroughly investigated, and their termination processes remain poorly understood. The Godzilla Megamullion is the largest known ceased OCC on Earth, yet magmatic and hydrothermal records from its termination are lacking.
Han‐Tao Chi +3 more
wiley +1 more source
Deep magmatic processes of mafic layered intrusions in the Lala mining area, western Sichuan
Dizhi lixue xuebaoObjective Previous studies have shown that many layered intrusions are formed by multiple pulsations of magma. However, little research has been done on whether the magma involved in the pulsation process comes from a single magma chamber or multiple ...
SUN Junyi, LUO Zhaohua, CUI Jiawei
doaj +1 more source
The Distinction Between Sn‐Mineralized and Sn‐Barren Granites in Sn Isotopes
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.Abstract Tin mineralization is commonly associated with highly evolved granites. However, not all highly evolved granitic rocks are mineralized with Sn. Comparative studies of Sn‐fertile and Sn‐barren granites can deepen our understanding of the key processes that lead to Sn enrichment in magmatic‐hydrothermal systems.
Cheng Xu +5 more
wiley +1 more source
Implications of Thermal Weakening and Magma Compressibility for Volcano Monitoring
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.Abstract Magmatic intrusion and volcanic deformation are traditionally approximated with an inflating cavity in an elastic halfspace. Various analytical models predict surface displacement as a function of pressure or volume change, depth, and elastic crustal properties.
A. Spang +4 more
wiley +1 more source