Mineral Phases in the Edige Ophiolite Body

Ayla TANKUT; Naci M. SAYIN

Article Details

Mineral Phases in the Edige Ophiolite Body

Authors:

Ayla TANKUT | Naci M. SAYIN

Publisher:

Maden Tetkik Arama Genel Müdürlüğü

Main Topics:

Applied physics

Journal:

Bulletin of the Mineral Research and Exploration 1990 Vol.110 Issue 110, pp.61-75

Document Type:

Article

Publication Date:

2/1990

Document Language:

English

Document ID (Org No.):

2000521500

Frequency:

Tri-annual

pISSN:

0026-4563

Abstract:

 


Ediğe ophiolite body contains upper mantle and a part of crustal sequences, as a remnant of an oceanic lithosphere
slice. The upper mantle sequence is composed of the primary assemblages of: olivin+ orthopyroxene + clinopyroxene + chromium
spinel, in the tectonite ultramafics;and olivine + clinopyroxene + orthopyroxene in the cumulate ultramafics. The crustal sequence
is characterized by the phases of: Plagioclase + clinopyroxene + olivin + orthopyroxene. Amphibole + serpentine + chlorite +
prehnite + pumpellyite + sphene are the common secondary phases. The pyroxenes of the cumulate rocks are characterized by
high Mg and very low contents of Na,K and Al. The plagioclase composition in the lovver level gabbros range from An40 to An90
The amount of amphibole development and albitization increase with stratigraphic height that, in the upper level gabbros the
pyroxenes are almost completely replaced by amphibole and all the plagioclases are albite. Chromites of the tectonites are of podiform
type. All the evidences suggest that the mineral assemblages in various rock types of the Ediğe ophiolite body are similar
to the corresponding rocks of the oceanic lithosphere. Minerals of the cumulates suggest direct crystallization from spreading
ridge magma. They have undergone metamorphic reconstitution correlated with ocean floor metamorphism.

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Article Details

Mineral Phases in the Edige Ophiolite Body

Authors: Ayla TANKUT | Naci M. SAYIN

Publisher: Maden Tetkik Arama Genel Müdürlüğü

Main Topics: Applied physics

Journal: Bulletin of the Mineral Research and Exploration 1990 Vol.110 Issue 110, pp.61-75

Document Type: Article

Publication Date: 2/1990

Document Language: English

Document ID (Org No.): 2000521500

Frequency: Tri-annual

pISSN: 0026-4563

Issues

Authors:

Ayla TANKUT | Naci M. SAYIN

Publisher:

Maden Tetkik Arama Genel Müdürlüğü

Main Topics:

Applied physics

Journal:

Bulletin of the Mineral Research and Exploration 1990 Vol.110 Issue 110, pp.61-75

Document Type:

Article

Publication Date:

2/1990

Document Language:

English

Document ID (Org No.):

2000521500

Frequency:

Tri-annual

pISSN:

0026-4563