Relationship Between D‐MORB and E‐MORB Magmatism During Crustal Accretion at Mid‐Ocean Ridges: Evidence From the Masirah Ophiolite (Oman)

Autor: Max N. Jansen, Christopher J. MacLeod, C. Johan Lissenberg, Ian J. Parkinson, Daniel J. Condon

Publikováno v: Geochemistry, Geophysics, Geosystems, Vol 25, Iss 3, Pp n/a-n/a (2024)

Abstract Enriched mid‐ocean ridge basalts (E‐MORB) commonly erupt at mid‐ocean ridges (MOR) and seamounts, but their relationship to “depleted” MORB (D‐MORB) and the processes controlling their magmatic evolution at MORs are not fully und

Externí odkaz: https://doaj.org/article/67ddf2aea8e5414b8dba216529fc8f27

Crystallization of Superfast‐Spreading Oceanic Crust (ODP Hole 1256D, Pacific Ocean): Constraints From Zircon Geochronology

Autor: C. Johan Lissenberg, Daniel J. Condon, Andrew J. Smye, Ryo Anma

Publikováno v: Geochemistry, Geophysics, Geosystems, Vol 24, Iss 10, Pp n/a-n/a (2023)

Abstract Studies of oceanic crust, which covers a large proportion of the Earth's surface, have provided significant insight into the dynamics of crustal accretion processes at mid‐ocean ridges. It is now recognized that the nature of oceanic crust

Externí odkaz: https://doaj.org/article/4b2bd0bf423d494da48fe6ae3411d21e

Early-Stage Melt-Rock Reaction in a Cooling Crystal Mush Beneath a Slow-Spreading Mid-Ocean Ridge (IODP Hole U1473A, Atlantis Bank, Southwest Indian Ridge)

Autor: Alessio Sanfilippo, Christopher J. MacLeod, Riccardo Tribuzio, C. Johan Lissenberg, Alberto Zanetti

Publikováno v: Frontiers in Earth Science, Vol 8 (2020)

Microtextural and chemical evidence from gabbros indicates that melts may react with the crystal framework as they migrate through crystal mushes beneath mid-ocean ridges; however, the importance of this process for the compositional evolution of min

Externí odkaz: https://doaj.org/article/25d3f61a39634ac79cbf3aec5c998a9a

Empirical and experimental constraints on Fe-Ti oxide-melt titanium isotope fractionation factors

Autor: Marc-Alban Millet, Jane Barling, Liam Hoare, Duncan Muir, Martijn Klaver, Stephan Klemme, Johan Lissenberg, Ian J. Parkinson

Publikováno v: Hoare, L, Klaver, M, Muir, D, Klemme, S, Barling, J, Parkinson, I J, Lissenberg, J & Millet, M-A 2022, ' Empirical and experimental constraints on Fe-Ti oxide-melt titanium isotope fractionation factors ', Geochimica et Cosmochimica Acta, vol. 326, pp. 253-272 . https://doi.org/10.1016/j.gca.2022.02.011

The Titanium (Ti) isotope compositions of felsic rocks are heavier than their mafic counterparts, and alkaline magmas develop heavier Ti isotope compositions compared to other magma series during magmatic differentiation. Both observations are interp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fafb3ff19fd64c1e292b8c5f431f865
https://doi.org/10.1016/j.gca.2022.02.011

Partial Melting of Lower Oceanic Crust Gabbro: Constraints From Poikilitic Clinopyroxene Primocrysts

Autor: Julien Leuthold, C. Johan Lissenberg, Brian O'Driscoll, Ozge Karakas, Trevor Falloon, Dina N. Klimentyeva, Peter Ulmer

Publikováno v: Frontiers in Earth Science, Vol 6 (2018)

Successive magma batches underplate, ascend, stall and erupt along spreading ridges, building the oceanic crust. It is therefore important to understand the processes and conditions under which magma differentiates at mid ocean ridges. Although fract

Externí odkaz: https://doaj.org/article/f6bb4d44748d448f8b3f81a23795b1cf