DIFFERENT GEODYNAMIC SETTINGS FOR SISTAN SUTURE ZONE OPHIOLITIC UNITS: DISCUSSION OF TEXTURAL EVIDENCES AND MINERAL CHEMISTRY OF CRUSTAL SEQUENCE ULTRAMAFIC-MAFIC ASSOCIATIONS

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

DELAVARI MORTEZA

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: PETROLOGY Year:2014 | Volume:4 | Issue:16 Page(s): 39-57

Download Full-Text

Persian Verion

View:

1,066

Download:

Cites:

Information Journal Paper

Title

DIFFERENT GEODYNAMIC SETTINGS FOR SISTAN SUTURE ZONE OPHIOLITIC UNITS: DISCUSSION OF TEXTURAL EVIDENCES AND MINERAL CHEMISTRY OF CRUSTAL SEQUENCE ULTRAMAFIC-MAFIC ASSOCIATIONS

Author(s)

DELAVARI MORTEZA | Issue Writer Certificate

Keywords

ULTRAMAFICQ2

MAFIC ROCKSQ2

GEODYNAMIC SETTINGQ2

OPHIOLITEQ2

SISTAN SUTURE ZONEQ2

EAST OF IRANQ2

Abstract

Sistan suture zone ophiolitic rocks are remnants of Tethyan oceanic lithosphere between Lut and Afghan continental blocks. This oceanic basin has been existed at least during the Cretaceous. Mineral chemistry from crustal sequence ULTRAMAFIC-mafic associations and petrographical evidences from parts of these ophiolitic complexes (the ophiolitic rocks located between the south of Birjand and Tchehel Kureh OPHIOLITEs) suggest distinct GEODYNAMIC SETTING for the formation of oceanic lithosphere. Plutonic rocks from crustal sequence mainly include ULTRAMAFIC cumulates (dunite and pyroxenite), cumulate gabbro, gabbronorite and isotropic gabbro. The crystallization trend in these rocks is variable including earlier crystallization of pyroxene relative to plagioclase and vice versa which implies SSZ (supra-subduction zone) and MORB (Mid-Oceanic Ridge Basalt) - type trends, respectively. The composition of plagioclase in cumulate gabbros and gabbronorite is bytownite and anorthite, respectively. Moreover, the contents of compatible and incompatible elements of clinopyroxene and orthopyroxene in ULTRAMAFIC cumulates, cumulate gabbros and gabbronorite represent significant differences. The chemical composition of these minerals and crystallization trends indicate that pyroxenites-gabbronorite and troctolite-cumulate gabbros-isotropic gabbros have been formed from two different magma series with SSZ and MORB affinities, respectively. In the study area, it seems that the MORB-type magmatism resulted from partial melting beneath mid ocean ridge produced a depleted mantle. Subsequently, consequence of intra-oceanic subduction the MORB mantle has been suffered higher depletion due to fluid-induced melting in supra subduction zone setting and produced SSZ-type magmatism.

Cites

No record.

References

No record.

Cite

APA: Copy

DELAVARI, MORTEZA. (2014). DIFFERENT GEODYNAMIC SETTINGS FOR SISTAN SUTURE ZONE OPHIOLITIC UNITS: DISCUSSION OF TEXTURAL EVIDENCES AND MINERAL CHEMISTRY OF CRUSTAL SEQUENCE ULTRAMAFIC-MAFIC ASSOCIATIONS. PETROLOGY, 4(16), 39-57. SID. https://sid.ir/paper/196932/en

Vancouver: Copy

DELAVARI MORTEZA. DIFFERENT GEODYNAMIC SETTINGS FOR SISTAN SUTURE ZONE OPHIOLITIC UNITS: DISCUSSION OF TEXTURAL EVIDENCES AND MINERAL CHEMISTRY OF CRUSTAL SEQUENCE ULTRAMAFIC-MAFIC ASSOCIATIONS. PETROLOGY[Internet]. 2014;4(16):39-57. Available from: https://sid.ir/paper/196932/en

IEEE: Copy

MORTEZA DELAVARI, “DIFFERENT GEODYNAMIC SETTINGS FOR SISTAN SUTURE ZONE OPHIOLITIC UNITS: DISCUSSION OF TEXTURAL EVIDENCES AND MINERAL CHEMISTRY OF CRUSTAL SEQUENCE ULTRAMAFIC-MAFIC ASSOCIATIONS,” PETROLOGY, vol. 4, no. 16, pp. 39–57, 2014, [Online]. Available: https://sid.ir/paper/196932/en

Related Journal Papers