Multi-stage melt impregnation and magma–seawater interaction in a slow-spreading oceanic lithosphere: constraints from cumulates in the Lagkorco ophiolite (central …

WQ Zhang, CZ Liu, T Liu, C Zhang, ZY Zhang… - … to Mineralogy and …, 2022 - Springer
Although seismic and hydrothermal data show evidence of magma–seawater interaction in
slow spreading-rate ridges, such a process has been rarely observed in situ in lower …

Post-cumulus control on copper isotopic fractionation during oceanic intra-crustal magmatic differentiation

WQ Zhang, CZ Liu, CJ Lissenberg, XN Li - Geochimica et Cosmochimica …, 2024 - Elsevier
Unlike their eruptive counterparts, plutonic rocks often experience post-cumulus evolution
prior to their final solidification. These processes have the potential to exert significant …

Melt-Rock Reaction in the Lower Oceanic Crust and the Influence on the Evolution of Mid-Ocean Ridge Basalts at the Central Indian Ridge (7° 50′–8° 30′ S)

S Choi, JW Park, J Kim, J Oh, C Park… - Journal of Petrology, 2024 - academic.oup.com
Various crustal processes shape both the lower oceanic crust and mid-ocean ridge basalts
(MORBs). To better understand how these crustal processes influence MORB compositions …

[HTML][HTML] Sampling Earth's mantle at intra-transform spreading ridges

C Sani, A Sanfilippo, S Skolotnev, M Ligi… - … et Cosmochimica Acta, 2024 - Elsevier
The Doldrums transform system, located in the Equatorial Atlantic at 7–8° N, is a 110 km-
wide multi-fault shear zone, with five active transform faults separated by four short intra …

Accretion of the lower oceanic crust at fast-spreading ridges: Insights from Hess Deep (East Pacific Rise, IODP Expedition 345)

V Basch, A Sanfilippo, JE Snow, M Loocke… - Journal of …, 2024 - academic.oup.com
At mid-ocean ridges, melts that formed during adiabatic melting of a heterogeneous mantle
migrate upwards and ultimately crystallize the oceanic crust. The lower crustal gabbros …

Petrological evidence for prominent melt‐mush reactions during slow‐spreading oceanic accretion

M Boulanger, M Godard, B Ildefonse… - Geochemistry …, 2024 - Wiley Online Library
The structure of the lithosphere and the associated magmatic systems found in different
locations along slow‐spreading ridges can vary dramatically, from melt‐starved to …

Incomplete mixing of isotopically variable melts in the lower oceanic crust and its implications on mantle heterogeneity: Evidence from oceanic cumulates from 14° 45 …

J Wang, B Li, F Zhang, R Liao, X Gu, C Li, W Sun - Chemical Geology, 2024 - Elsevier
Abyssal peridotites and mid-ocean ridge basalts (MORB) offer only a partial glimpse into the
mantle's composition and the magmatic process beneath the mid-ocean ridges. Recently …

Oceanic mantle beneath ultraslow spreading ridges metasomatized by variably evolved melts

WQ Zhang, CZ Liu, HJB Dick, RN Mitchell… - … to Mineralogy and …, 2024 - Springer
As the melting residue of the asthenosphere at ocean ridges, the oceanic mantle lithosphere
is initially depleted, which might be re-enriched by various types of melts. However, the …

Magmatic processes within the plumbing system of the ultraslow-spreading southwest Indian ridge: constraints from olivine, plagioclase and melt inclusions

Q Ou, SP Qian, K Hoernle, BB Carvalho, F Zi… - … to Mineralogy and …, 2024 - Springer
Processes taking place within the magma plumbing system can exert an important control
on the composition of mid-ocean ridge basalts (MORB). Plagioclase ultraphyric basalts …

A frozen oceanic crystal mush

V Basch, C Ferrando, A Sanfilippo - Terra Nova, 2023 - Wiley Online Library
The processes driving the evolution of crystal mushes are often documented in complex
systems where crystallization, assimilation, magma replenishment and mixing occur …