Results 71 to 80 of about 5,793 (215)

Mantle Wedge Metasomatism During Subduction Initiation: Mineral Transformations and Fluid Fluxes (BOIC Ophiolite, Newfoundland)

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The soles of ophiolites preserve slices of oceanic crust metamorphosed to amphibolite‐ to granulite‐facies conditions beneath heavily deformed mantle peridotites, providing key records of fluid and mass transfer across nascent subduction interfaces.
Louise Mérit   +11 more
wiley   +1 more source

Two hundred years eclogites and one hundred years of eclogite discussion

open access: yesReview of the Bulgarian Geological Society, 2021
The first significant publication on eclogites (Escola, 1921) marked the start of the longest-discussed problem in petrology – the genesis and the place of eclogite formation and eclogite facies on the Earth. The mineral paragenesis of garnet, omphacite, rutile with rare inclusion of microdiamond in garnet requires conditions of T=800–1000 °C and P=0 ...
openaire   +1 more source

AN EXPERIMENTAL STUDY OF THE BASALT-ECLOGITE TRANSITION [PDF]

open access: yes, 1967
The basalt-eclogite transition has been investigated experimentally using natural basalt as the starting material. Temperature interval investigated in this work was not so wide (from the solidus of the basalt to 850°C) that the stability lines ...
SHIMADA, Mitsuhiko, Mitsuhiko Shimada
core  

A Study on the Classification and Well-Logging Identification of Eclogite in the Main Hole of Chinese Continental Scientific Drilling Project

open access: yes, 2007
Eclogite, one of the important lithologies in the main hole of the Chinese Continental Scientific Drilling (CCSD) Project, exists above the depth of 3 245 m and has distinctive responses of gamma-ray, compensating density and neutron well-logging, and so
Sheng, J.   +4 more
core   +1 more source

A petrological and mineralogical study of peridotite and eclogite xenoliths from certain kimberlite pipes [PDF]

open access: yes, 1972
Kimberlite, an ultrabasic diamond-bearing hypabyssal rock-type which has its origin in the Earth's upper mantle, characteristically contains rare, well-rounded xenoliths of peridotite and eclogite.
Whitfield, Gavin
core   +1 more source

The Theodul Glacier Unit, a slab of pre-Alpine rocks in the Alpine meta-ophiolite of Zermatt-Saas, Western Alps

open access: yesSwiss Journal of Geosciences, 2020
The Theodul-Glacier-Unit (TGU) is a 100 m thick and 2 km long slab of pre-Alpine schist, gneiss and mafic rocks tectonically emplaced in the eclogite-facies Zermatt-Saas meta-ophiolite nappe (ZSU).
Kurt Bucher   +4 more
doaj   +1 more source

The role of eclogite in the mantle heterogeneity at Cape Verde

open access: yes, 2014
The Cape Verde hotspot, like many other Ocean Island Basalt provinces, demonstrates isotopic heterogeneity on a 100–200 km scale. The heterogeneity is represented by the appearance of an EM1-like component at several of the southern islands and with a ...
Holm, Paul Martin,   +5 more
core   +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

open access: yesGeochemistry, Geophysics, Geosystems
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.
Dadi Cao   +4 more
doaj   +1 more source

Eclogites

open access: yesGeology Today
The beauty of an eclogite is something to behold: any petrologist marvels in the combination of red garnet and green omphacite that are the main mineral constituents of the rock. But besides their stunning appearance, there is much more to eclogites: fundamental concepts in metamorphic petrology and geodynamics were developed based on scientific ...
openaire   +2 more sources

MENDERES MASİFİ'NİN PAN-AFRİKAN TEMEL VE PALEOZOYİK - ERKEN TERSİYER ÖRTÜ SERİLERİNİN POLİMETAMORFİK EVRİMİ

open access: yesBulletin of the Mineral Research and Exploration, 2011
Batı Anadolu'da yüzlek veren Menderes Masifi ana hatlarıyla Geç Alpin sıkışma tektoniği ile biçimlenmiş karmaşık bir tektonik iç yapı sunmaktadır. Bu kristalin kompleksin litostratigrafik istifi; 1-Pan-Afrikan temel (çekirdek serisi) ve 2-Paleozoyik ...
Osman CANDAN   +7 more
doaj  

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