Serpentine mesh texture in harzburgite from the Mineoka ophiolite...

... serpentine veins, shows clear zon- ing of Al with an Al-rich mesh core and an Al-free mesh rim. The Al content is high in the mesh core (C in Fig. 3d), ...

Al-Zoning of Serpentine Aggregates in Mesh Texture Induced by ...

Examination of a serpentinized harzburgite and a plagioclase-bearing wehrlite revealed conspicuous zoning of Al in a serpentine mesh texture, with Al-rich cores ...

Al-Zoning of Serpentine Aggregates in Mesh Texture Induced by ...

Serpentine mesh texture in harzburgite from the Mineoka ophiolite complex, Japan. (a) Al elemental map around the bound- ary between ...

Transpressional tectonics of the Mineoka Ophiolite Belt in a trench ...

The original serpentinite is altered into smectites (montmorillonite) at the boundary, with aggregation textures composed of quartz, K-feldspar ...

[PDF] Serpentinization, element transfer, and the progressive ...

... harzburgite. We describe a harzburgite from the Santa Elena Ophiolite in Costa Rica that is ~30 % serpentinized. Serpentine + brucite ± magnetite veins ...

Serpentinization of olivine in troctolites and olivine gabbros from the ...

Serpentinization is compared between gabbros and peridotites from the Hess Deep Rift. · Serpentine is associated with abundant magnetite and no brucite in the ...

Revision 1 Role of silica for the progress of serpentinization reactions

(a) Serpentine mesh texture with type-A and type-B rims (plane-. 555 ... Compositions of serpentine in mesh centers of harzburgite and dunite. Data of ...

Serpentinization in the Oman Ophiolite - Meeting Organizer

... harzburgites, dark serpentine selvages (S2) ... mesh texture which is locally overprinted at the interface with carbonate veins. S2 mesh textured serpentine ...

Serpentinite with and without brucite: A reaction pathway ... - J-Stage

A partially serpentinized peridotite from the Josephine ophiolite has been studied in detail in order to characterize the chemical processes of its ...

Plutonic rocks in the Mineoka–Setogawa ophiolitic mélange, central ...

If the Mineoka–Setogawa ophiolitic mélange contains fragments of the IBM Arc, the mafic and ultramafic rocks in this belt can reveal deep igneous processes in ...

Fluid Infiltration Through Oceanic Lower Crust in Response to ...

... Mineoka ophiolite complex, central Japan. ... Al-zoning of serpentine aggregates in mesh texture induced by metasomatic replacement reactions.

Al-Zoning of Serpentine Aggregates in Mesh Texture Induced by ...

Al-Zoning of Serpentine Aggregates in Mesh Texture ... Mineoka ophiolite complex, central Japan, Earth ... harzburgite, Contributions to Mineralogy and Petrology, № ...

On the hydration of olivine in ultramafic rocks: Implications from Fe ...

Mea- surements of mineral separates from New Caledonia show significant Fe isotope fractionations, with serpentine-brucite mix- tures having the lowest d56Fe ...

35. ophiolitic rocks of the middle america trench landward slope off ...

This is a serpentinite altered from harzburgite. Ser- pentine is largely made of lizardite and chrysotile now of a mesh texture and of poor crystallinity.

Raman spectroscopy of hydrous inclusions in olivine and ... - J-Stage

(a) Protogranular to slightly porphyroclastic texture of the harzburgite (F2H2). ... example of natural serpentinites in the Mineoka ophiolite complex, central ...

Alteration Heterogeneities in Peridotites Exhumed on the Southern ...

pentinized harzburgite overprinted by later serpentine textures ... the mesh texture serpentine minerals (e.g. Fig. ... ample of natural serpentinites in the ...

IGNEOUS AND METAMORPHIC PETROLOGY OF ULTRAMAFICS

The serpentinized harzburgites generally display typical mesh and hourglass textures (when the serpentinization involves olivine), as well as bastitic texture ( ...

Formation of secondary olivine after orthopyroxene during hydration ...

... Mineoka ophiolite complex, central Japan. Earth Planet Sci Lett 298 ... serpentine aggregates in mesh texture induced by metasomatic replacement reactions.

zambales ophiolite complex: Topics by Science.gov

Rossman, D.L.; Castanada, G.C.; Bacuta, G.C.. 1989-01-01. The Zambales ophiolite of western Luzon, Philippines, exposes a typical succession of basalt flows, ...

Iron transformations during low temperature alteration of variably ...

carbonate omitted, the percent of serpentine in the highly altered rocks increases to 65–95%. Sample OM09-129 has a mesh texture in which serpentine surrounds ...