Results 51 to 60 of about 115,962 (208)

Geochemistry of spinels from xenoliths of mantle lherzolites (sverre Volcano, spitsbergen Archipelago)

Записки Горного института, 2017
The paper presents the results of a study (LA-ICP-MS method) of spinel from the collection of mantle xenoliths of lherzolites (seven xenoliths) selected in quaternary alkaline basalts of the Sverre volcano, the Spitsbergen archipelago.
D. S. Ashikhmin, Yu.-S. Chen, S. G. Skublov, A. E. Mel'nik   +3 more
doaj   +1 more source

The Magnetic Signature of Shear Zones in Marbles and Experimental Simulations

Geoscience Data Journal, Volume 13, Issue 4, October 2026.
This dataset explores how strain, microstructure, texture and magnetic susceptibility interact in natural and experimental shear zones. It includes data from low‐ and high‐temperature marble shear zones and analogue experiments simulating different deformation regimes.
Vladimír Kusbach, Zuzana Roxerová, Matěj Machek, Monika Kučeráková, Stanislav Vratislav, Anna Vávrová, Martin Chadima, Pedro F. Silva, Martin Racek   +8 more
wiley   +1 more source

Experimental study of the interaction of model garnet-harzburgite with H2O – CO2 – (K, Na)Cl fluids at 5 GPa and 1 100 °С

Vestnik MGTU
In modern petrological and geochemical literature, considerable attention is paid to the issue of the transformation of mantle rocks during their interaction with fluids and melts of various origins.
Butvina V. G., Limanov E. V.
doaj   +1 more source

Multiple Subduction–Exhumation Cycles and Episodic Hydration–Metasomatism of an Oceanic Eclogite Block: Implications for Thermal Structure Evolution and Mass Transfer at the Subduction Interface

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The rarity of natural rocks that specifically record the physicochemical conditions of the subduction interface strongly hampers pertinent studies on metamorphic trajectories of high‐pressure (HP) rocks and related fluid–rock interactions. This study examines an oceanic eclogite block from the Huwan shear zone in the Hong'an orogen.
Dadi Cao, Liqing Xu, Xiangxin Zhang, Haofan He, Kang Cheng   +4 more
wiley   +1 more source

Large-scale impregnation of oceanic and continental slab-derived adakitic melts into the mantle wedge

Communications Earth & Environment
Mantle wedge metasomatism is a widespread phenomenon in subduction zones. However, details of early melt generation and the extent of metasomatic processes is unclear.
Pengjie Cai, Jaroslaw Majka, Dongyang Lian, Jingsui Yang, Lu Wang, Haitao Ma, Huichao Rui, Rongzong Bo, Ahmed E. Masoud   +8 more
doaj   +1 more source

How mantle heterogeneities drive continental subduction and magmatism in the Apennines

Scientific Reports, 2022
Petrologic and geophysical observations floored the paradigm shift on the subduction of the continental lithosphere. In long-lived collisional boundaries like the Alpine Himalaya belt, portions of continental lithosphere are pushed down to great depths ...
G. Giacomuzzi, P. De Gori, C. Chiarabba
doaj   +1 more source

Multistage Evolution and Inheritance in a Magma‐Poor Conjugate Margin: Insights From Serpentinized Peridotites of the Newfoundland Margin (ODP Hole 1277A)

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The nature of mantle sections exhumed at magma‐poor rifted margins remains poorly constrained, largely because direct sampling of mantle in modern passive margins is exceptionally rare. The Iberia–Newfoundland system is unique in providing drilled mantle rocks on both conjugate margins, offering an unprecedented glimpse into mantle ...
A. Secchiari, M. Godard, A. Montanini
wiley   +1 more source

Atlas of the underworld: Slab remnants in the mantle, their sinking history, and a new outlook on lower mantle viscosity [PDF]

, 2018
Across the entire mantle we interpret 94 positive seismic wave-speed anomalies as subducted lithosphere and associate these slabs with their geological record.
Mantle dynamics & theoretical geophysics, Spakman, Wim, van der Meer, Douwe G., van Hinsbergen, Douwe J.J.   +3 more
core   +1 more source

BaSIC: A Bayesian Inversion Model for Basalt Source Investigation and Characterization

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract We present BaSIC: Basalt Source Investigation and Characterization, an open‐source Python based Bayesian inversion method to constrain the source mineralogy of basalts. Using bulk rock geochemistry, the model takes the averages and standard deviations of six elemental ratios (Mn/Fe, Zn/Fe, Mn/Zn, Sc/Zn, Co/Fe, and Ga/Sc) for a given basalt ...
E. H. Cunningham, S. Lambart, E. L. Brown   +2 more
wiley   +1 more source

Experimental production of K-rich metasomes through sediment recycling at the slab-mantle interface in the fore-arc

Scientific Reports, 2023
Sediment contribution to the mantle is the key step for the generation of orogenic magmatism to produce its isotopic and geochemical inventory. Even though they are exceptional for the post-collisional settings, there are worldwide examples of arc ...
Fatma Gülmez, Dejan Prelević, Michael W. Förster, Stephan Buhre, Jennifer Günther   +4 more
doaj   +1 more source