scholarly journals Magmatism and Mantle Composition at the Slow-Spreading Mohns Ridge

2020 ◽  
Author(s):  
Anders Bjerga ◽  
Håvard Hallås Stubseid ◽  
Rolf Birger Pedersen
Keyword(s):  
Mantle Composition ◽  
Slow Spreading

Extremely asymmetric magmatic accretion of oceanic crust at the ends of slow-spreading ridge segments

Geology ◽  
2000 ◽  
Vol 28 (2) ◽  
pp. 179-182 ◽  
Author(s):  
Simon Allerton ◽  
Javier Escartín ◽  
Roger C. Searle
Keyword(s):  
Oceanic Crust ◽  
Spreading Ridge ◽  
Slow Spreading

VARIATIONS IN MANTLE COMPOSITION AND SUBDUCTION CONTRIBUTIONS TO MAFIC MAGMAS IN THE SOUTHERN CASCADE ARC

2019 ◽  
Author(s):  
Emily R. Johnson ◽  
◽  
Jamie Shaffer ◽  
Meredith A. Cole ◽  
Frank C. Ramos ◽  
...  
Keyword(s):  
Cascade Arc ◽  
Mantle Composition ◽  
Mafic Magmas

scholarly journals Fast and slow spreading ridges: Structure and hydrothermal activity, ultramafic topographic highs, and CH4output

1993 ◽  
Vol 98 (B6) ◽  
pp. 9643 ◽  
Author(s):  
Henri Bougault ◽  
Jean-Luc Charlou ◽  
Yves Fouquet ◽  
Hubert D. Needham ◽  
Nathalie Vaslet ◽  
...  
Keyword(s):  
Hydrothermal Activity ◽  
Spreading Ridges ◽  
Slow Spreading

Mineral assemblages in a model mantle composition

1963 ◽  
Vol 68 (3) ◽  
pp. 937-945 ◽  
Author(s):  
D. H. Green ◽  
A. E. Ringwood
Keyword(s):  
Mantle Composition ◽  
Mineral Assemblages

The Heterogeneous Tethyan Oceanic Lithosphere of the Alpine Ophiolites

Elements ◽  
2021 ◽  
Vol 17 (1) ◽  
pp. 23-28 ◽  
Author(s):  
Elisabetta Rampone ◽  
Alessio Sanfilippo
Keyword(s):  
Oceanic Lithosphere ◽  
Passive Margin ◽  
Crustal Material ◽  
Crustal Accretion ◽  
Mantle Dynamics ◽  
Western Tethys ◽  
Mantle Peridotites ◽  
Slow Spreading ◽  
Tethys Ocean ◽  
Basaltic Crust

The Alpine–Apennine ophiolites are lithospheric remnants of the Jurassic Alpine Tethys Ocean. They predominantly consist of exhumed mantle peridotites with lesser gabbroic and basaltic crust and are locally associated with continental crustal material, indicating formation in an environment transitional from an ultra-slow-spreading seafloor to a hyperextended passive margin. These ophiolites represent a unique window into mantle dynamics and crustal accretion in an ultra-slow-spreading extensional environment. Old, pre-Alpine, lithosphere is locally preserved within the mantle sequences: these have been largely modified by reaction with migrating asthenospheric melts. These reactions were active in both the mantle and the crust and have played a key role in creating the heterogeneous oceanic lithosphere in this branch of the Mesozoic Western Tethys.

Effects of terrain on the slow spreading of fluid mud

2004 ◽  
pp. 633-639
Author(s):  
T Nakaya ◽  
M Yuhi ◽  
H Ishida
Keyword(s):  
Fluid Mud ◽  
Slow Spreading
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