PETROGENESIS OF IGNEOUS ROCKS ASOCIATED WITH SALT DIAPIRS IN SOUTHERN PART OF CENTRAL ALBORZ

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SHAHRIARI S.; SAFAEI H.; SHARIFI M.

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Journal: RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE" Year:2001 | Volume:15 | Issue:1-2 Page(s): 143-162

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Title

PETROGENESIS OF IGNEOUS ROCKS ASOCIATED WITH SALT DIAPIRS IN SOUTHERN PART OF CENTRAL ALBORZ

Author(s)

SHAHRIARI S. | SAFAEI H. | SHARIFI M. | Issue Writer Certificate

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Abstract

In southern margin of Central Alborz near Garmsar City many of Tertiary salt diapirs are outcropped. Only in the western part of this city many of igneous rocks with calcareous caprocks can be seen. Some evidence has indicated that, these rocks in late Eocene-early Oligocene during the deposition of evaporate sediment were erupted. Petrography studies of these rocks indicate that, they are tholeiitic basalt, olivine basalt, andesit basalt, diabas and alkali basalt. Based on geochemical analysis, magmatic source of these rocks were alkali-potassic to sub-alkali, These rocks in some diagrams mainly located in basalt, basaltic andesit, trachy andesit basalt, trachy basaltic and basanit regions. The concentration variations of main elements in igneous rocks versus show that during mamatic differentiation a new magma with moremafic composition was mixed with this magma. The abundant concentration of rare and trace elements in these basalts and interplates alkali basalt (continental basalt and oceanic island basalt) have the best correlation. Based on triangulate diagrams for different tectonic environment, these basalts were also well correlated worth within plate basalts.Comparison of spider diagrams of within plate basalts and oceanic basalt and these basalts indicated that, these basalts like within plate basalts we enriched geochemistry of rocks and composition situation of these rocks show the presence of crustal contamination and indicates that, the within plate basalts, in this area were intercontinental basalt which were produced by refitting.

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APA: Copy

SHAHRIARI, S., SAFAEI, H., & SHARIFI, M.. (2001). PETROGENESIS OF IGNEOUS ROCKS ASOCIATED WITH SALT DIAPIRS IN SOUTHERN PART OF CENTRAL ALBORZ. RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE", 15(1-2), 143-162. SID. https://sid.ir/paper/55872/en

Vancouver: Copy

SHAHRIARI S., SAFAEI H., SHARIFI M.. PETROGENESIS OF IGNEOUS ROCKS ASOCIATED WITH SALT DIAPIRS IN SOUTHERN PART OF CENTRAL ALBORZ. RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE"[Internet]. 2001;15(1-2):143-162. Available from: https://sid.ir/paper/55872/en

IEEE: Copy

S. SHAHRIARI, H. SAFAEI, and M. SHARIFI, “PETROGENESIS OF IGNEOUS ROCKS ASOCIATED WITH SALT DIAPIRS IN SOUTHERN PART OF CENTRAL ALBORZ,” RESEARCH JOURNAL OF UNIVERSITY OF ISFAHAN "SCIENCE", vol. 15, no. 1-2, pp. 143–162, 2001, [Online]. Available: https://sid.ir/paper/55872/en

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