Results 1 to 10 of about 28,317 (141)

Timescales of Magma Mixing Beneath the Iheya Ridge, Okinawa Trough: Implications for the Stability of Sub-Seafloor Magmatic Systems

Journal of Marine Science and Engineering, 2023
Submarine volcanic eruptions can be destructive for marine environments and resources. Magma mixing is considered to be an important trigger for volcanic eruptions.
Yuxiang Zhang, Zuxing Chen, Zhigang Zeng
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Mesoscopic and Microscopic Magmatic Structures in the Quxu Batholith of the Gangdese Belt, Southern Tibet: Implications for Multiple Hybridization Processes

Frontiers in Earth Science, 2021
The Quxu batholith of the Gangdese magmatic belt, southern Tibet, comprises predominantly Early Eocene calc-alkaline granitoids that feature a variety of types of magmatic microgranular enclaves and dikes.
Xuxuan Ma, Xuxuan Ma, Zhongbao Zhao, Zhongbao Zhao, Wenrong Cao, He Huang, Fahui Xiong, Fahui Xiong, Tarryn Cawood, Haibing Li, Haibing Li   +10 more
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Petrographical and Mineralogical Characteristics of Bengge Alkaline Igneous Complex in Zhongdian, Western Yunnan and Its Geological Significance

Kuangchan zonghe liyong, 2022
Bengge alkaline igneous complex in Zhongdian, Western Yunnan has the variety of rock types, which is production after a complex magma—fluid process. The petrographical and mineralogical analysis of the host rock and its xenolith suggests that the igneous
Yupeng Huang, Jinxi Zou, Qingqiang Liu, Chunzhang Wu, Xianfan Liu, Jianghong Deng, Kefa Ren   +6 more
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Mixing between chemically variable primitive basalts creates and modifies crystal cargoes

Nature Communications, 2021
Chemically variable primitive basalts undergo mixing during ascent from the mantle. Here the authors show observations from magma–magma reaction experiments which demonstrate how isothermal mixing between chemically variable basalts creates and modifies ...
David A. Neave, Philipp Beckmann, Harald Behrens, François Holtz   +3 more
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Remobilization of silicic intrusion by mafic magmas during the 2010 Eyjafjallajökull eruption [PDF]

Solid Earth, 2011
Injection of basaltic magmas into silicic crustal holding chambers and subsequent magma mingling or mixing is a process that has been recognised since the late seventies as resulting in explosive eruptions.
O. Sigmarsson, I. Vlastelic, R. Andreasen, I. Bindeman, J.-L. Devidal, S. Moune, J. K. Keiding, G. Larsen, A. Höskuldsson, Th. Thordarson   +9 more
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A History of Andesite Production via Magma Mixing and Mingling Revealed Microscopically at Ngauruhoe Volcano

Geochemistry, Geophysics, Geosystems, 2022
Many andesites erupted at arc volcanoes are the products of magma mixing, and this process could be important in triggering their eruption. Throughout the life of Ngauruhoe volcano (∼2.5 ka), erupted andesites lack macroscopic enclaves or lithological ...
Kate Cocker, Phil Shane, Shane Cronin, Claudine Stirling, Malcolm Reid   +4 more
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Magma mixing enhanced by bubble segregation [PDF]

Solid Earth, 2015
In order to explore the materials' complexity induced by bubbles rising through mixing magmas, bubble-advection experiments have been performed, employing natural silicate melts at magmatic temperatures.
S. Wiesmaier, D. Morgavi, C. J. Renggli, D. Perugini, C. P. De Campos, K.-U. Hess, W. Ertel-Ingrisch, Y. Lavallée, D. B. Dingwell   +8 more
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Trachytic Melt Inclusions Hosted in Clinopyroxene Offer a Glimpse Into Samoan EM2‐Endmember Melts

Geochemistry, Geophysics, Geosystems, 2021
We present major and trace element data on clinopyroxene‐hosted, glassy melt inclusions (MIs) from a highly enriched (high 87Sr/86Sr = 0.71856) lava (ALIA‐D115‐18) from the Samoan hot spot.
J. V. Adams, F. J. Spera, M. G. Jackson
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Experimental constraints on the stability and oscillation of water vapor film—a precursor for phreatomagmatic and explosive submarine eruptions

Frontiers in Earth Science, 2022
Pre-mixing of magma and external water plays a key role in driving explosive phreatomagmatic and submarine volcanic eruptions. A thin film of water vapor forms at the magma–water interface as soon as hot magma comes in direct contact with the cold water (
Ingo Sonder, Pranabendu Moitra
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Mafic-silicic magma interaction in the layered 1.87 Ga Soukkio Complex in Mäntsälä, southern Finland [PDF]

Bulletin of the Geological Society of Finland, 2002
The Svecofennian layered Soukkio Complex (1.87 Ga) in Mäntsälä, southern Finland, consists of layered tholeiitic gabbro and porphyritic calc-alkaline monzonite, quartz monzonite and granite, mingled together.
T.T. Eerola
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