Origin and tectonomagmatic setting of Quaternary volcanism in Alamut Valley

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.

HOSSEINI B.; Mohammadi Siyani m.; AHMADI A.R.

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

Journal Paper

Paper Information

Journal: GEOSCIENCES Year:2018 | Volume:27 | Issue:106 Page(s): 57-66

Download Full-Text

Persian Verion

View:

693

Download:

Cites:

Information Journal Paper

Title

Origin and tectonomagmatic setting of Quaternary volcanism in Alamut Valley

Author(s)

HOSSEINI B. | Mohammadi Siyani m. | AHMADI A.R. | Issue Writer Certificate

Keywords

AlborzQ2

AlamutQ1

Quaternary volcanismQ1

AdakiteQ2

Lower CrustQ1

Abstract

Quaternary volcanic activities in Alamut Valley occurred in three stages and covered Neogene red sedimentary rocks. The volcanic rocks are intermediate in composition and are classified as hornblende trachyandesite. The SiO2 content of the rocks varies in a range from 55. 48-61. 88 wt%. Chondrite normalized REE patterns exhibit a steep arrangement of LREEs and MREEs (La/Ho)N =85 and a relatively flat HREE (Ho/Lu)N =1. 3., Large ion lithophile elements (LILE) do not show strong enrichment compared to LREEs in mantle normalized multi-element spider diagrams. Nb andTa are slightly depleted compared to neighboring light rare earth elements. These rocks have high Sr/Y (140-205), La/Yb (113-142) ratios, accompanied by high K2O/Na2O (0. 7-0. 9) and resemble C-Type Adakites. Geochemical evidence suggest that these rocks are resulted from partial melting of thickened eclogitic Lower Crust in presence of abundant residual garnet. Partial melting of lower continental crust probably triggered by thickening of crust as a result of late Cenozoic orogenic phases especially the Passadenian Orogenic phase.

Cites

No record.

References

No record.

Cite

APA: Copy

HOSSEINI, B., Mohammadi Siyani, m., & AHMADI, A.R.. (2018). Origin and tectonomagmatic setting of Quaternary volcanism in Alamut Valley. GEOSCIENCES, 27(106 ), 57-66. SID. https://sid.ir/paper/32106/en

Vancouver: Copy

HOSSEINI B., Mohammadi Siyani m., AHMADI A.R.. Origin and tectonomagmatic setting of Quaternary volcanism in Alamut Valley. GEOSCIENCES[Internet]. 2018;27(106 ):57-66. Available from: https://sid.ir/paper/32106/en

IEEE: Copy

B. HOSSEINI, m. Mohammadi Siyani, and A.R. AHMADI, “Origin and tectonomagmatic setting of Quaternary volcanism in Alamut Valley,” GEOSCIENCES, vol. 27, no. 106 , pp. 57–66, 2018, [Online]. Available: https://sid.ir/paper/32106/en

Related Journal Papers