Results 61 to 70 of about 2,520 (206)

Two types of gabbroic xenoliths from rhyolite dominated Niijima volcano, northern part of Izu-Bonin arc: petrological and geochemical constraints

Open Geosciences, 2017
We examined the petrography, petrology, and geochemistry of two types of gabbroic xenoliths (A- and B-type xenoliths) in olivine basalt and biotite rhyolite units among the dominantly rhyolitic rocks in Niijima volcano, northern Izu-Bonin volcanic arc ...
Arakawa Yoji, Endo Daisuke, Ikehata Kei, Oshika Junya, Shinmura Taro, Mori Yasushi   +5 more
doaj   +1 more source

Investigating Layered Cratonic Lithosphere in the Fennoscandian Shield

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract Cold, thick, and chemically depleted lithosphere with high seismic velocity and low attenuation characterizes continental cratons. However, discrepancies between xenolith‐based thermal constraints and those inferred from surface‐wave seismic models, together with the widespread observation of mid‐lithosphere discontinuities, challenge the ...
Yiran Huang, Colleen A. Dalton, Karen M. Fischer   +2 more
wiley   +1 more source

Xenolith - Reid Beach

, 1996
Xenolith - Reid BeachKelley NGGDPP Grant 2019https://digitalmaine.com/mgs_geologic_field_photos/11929/thumbnail ...
Kelley, Joseph
core  

Xenolith Third Beach

, 2019
Xenolith Third Beachhttps://digitalmaine.com/mgs_geologic_field_photos/6098/thumbnail ...
Kelley, Joseph
core  

Dissolution of mantle orthopyroxene in kimberlitic melts: petrographic, geochemical and melt inclusion constraints from an orthopyroxenite xenolith from the Udachnaya-East kimberlite (Siberian Craton, Russia)

, 2021
Reconstructing the original composition of kimberlite melts in the mantle and delineating the processes that modify them during magmatic ascent and emplacement in the crust remains a significant challenge in kimberlite petrology.
Karsten Goemann (14737597), Vadim Kamenetsky (14740705), Ehrig, K (15549827), Golovin, A (15742415), Abersteiner, A (15724988)   +4 more
core  

Xenolith in granite boulder, Third Machias Lake, T43 MD.

, 1978
1-J-4. Wabassus Lake(15\u27)-C-78-84. Detachable xenolith in granite erratic boulder, NE shore of Third Machias Lake, T43 MD. Project Name: Thompson NGGDPP Grant 2020https://digitalmaine.com/mgs_geologic_field_photos/16284/thumbnail ...
Thompson, Woodrow B
core  

Droubi et al., 2024 Xenolith Petrochronology (San Luis Potosi)

Droubi, O. K., Cipar, J. H., Smye, A. J., & Garber, J. M. (2024). Xenolith petrochronology (San Luis Potosi, Mexico) constrains heat sources for Cenozoic ultrahigh-temperature metamorphism in the lower crust [Dataset and Software].
Omar Khalil Droubi
core   +1 more source

The evolution and ascent paths of mantle xenolith-bearing magma: Observations and insights from Cenozoic basalts in Southeast China [PDF]

, 2018
Studies have shown that mantle xenolith-bearing magmas must ascend rapidly to carry mantle xenoliths to the surface. It has thus been inferred inadvertently that such rapid ascending melt must have undergone little crystallization or evolution.
Jinju Liu, Huixia Cui, Lei Ye, Liu, Jinju, Pu Sun, Guo, Pengyuan, Yaoling Niu, Pengyuan Guo, Cui, Huixia, Niu, Yaoling, Sun, Pu, Ye, Lei   +11 more
core   +1 more source

Fine-grained xenolith AL1 in chondrite Allende (CV3): mineralogy and origin [PDF]

, 2012
Наведено результати структурно-мiнералогiчних та хiмiчних дослiджень тонкозернистого силiкатного ксенолiта AL1 у хондритi Allende (CV3). За валовим хiмiчним складом i вiдношенням SiO₂/MgO ксенолiт вiдноситься до вуглистих хондритiв.
Кичань, Н.В., Семененко, В.П., Гіріч, А.Л.   +2 more
core   +1 more source

Melt inclusions in spinel from a composite mantle xenolith

Composite mantle xenoliths from the Cima Volcanic Field (CA, USA) contain a variety of melt (now glassy) inclusions hosted within mantle phases. The compositions and textures of these melt inclusions have the potential to constrain their trapping ...
Jasper Berndt, Konstantinos Mavrogonatos, Paul D. Asimow, Myrto Simopoulou, Ioannis Baziotis, Stephan Klemme   +5 more
core   +1 more source