ANALYSIS OF GENETIC RELATIONS BETWEEN EOCENE VOLCANIC LAVAS IN SHIRINSU AREA (SOUTH OF LOWSHAN) BASED ON PETROGRAPHIC AND GEOCHEMICAL EVIDENCES

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.

EMAMI M.H.; ASADI N.; KHEYRKHAH M.

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

Journal Paper

Paper Information

Journal: JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT) Year:2008 | Volume:34 | Issue:2 Page(s): 109-119

Download Full-Text

Persian Verion

View:

1,027

Download:

Cites:

Information Journal Paper

Title

ANALYSIS OF GENETIC RELATIONS BETWEEN EOCENE VOLCANIC LAVAS IN SHIRINSU AREA (SOUTH OF LOWSHAN) BASED ON PETROGRAPHIC AND GEOCHEMICAL EVIDENCES

Author(s)

EMAMI M.H. | ASADI N. | KHEYRKHAH M. | Issue Writer Certificate

Keywords

SHIRINSUQ3

CRYSTAL FRACTIONATIONQ3

MINGLINGQ3

BLENDINGQ3

PARTIAL MELTINGQ3

CRUSTAL CONTAMINATIONQ3

Abstract

Eocene volcanic rocks in SHIRINSU area, consist mainly of alkali olivine basalt lavas, intermediate andesitic- trachyandesitic lavas and daciticrhyodacitic ignimbrites. A number of textural and mineralogical relations observed in thin sections and some geochemical evidences indicate that basaltic and andesitic magma in this area have a common origin and are affected by CRYSTAL FRACTIONATION, magma mixing (mingling and BLENDING) and CRUSTAL CONTAMINATION. These include the existence of glomeroporphyric and glomerocryst assemblages of mafic minerals, inequilibrium textures such as sieve texture in plagioclase, compositionally bimodal phenocrysts of plagioclase and clinopyroxene, hetrogenous composition of rock and the presence of basic enclaves and micropillows with opacitized groundmass in acidic volcanic rocks with lightcoulered glassy matrix, existence of xenoliths and xenocrysts with reaction rims, etc. and dispersions and various trends observed in geochemical diagrams. On the other hand, intermediate andesitic rocks are the result of mixing between basaltic magma and it,s fractionated parts which were contaminated by crustal materials during the ascend and emplacement in upper crust. Based on existing evidences, it seems that voluminous dacitic and rhyodaciyic ignimbrites have a different origin in comparision with basalts and andesites. Acidic volcanics are most probably the products of crust PARTIAL MELTING which during emplacement of basic magma in crust, mixing (mainly MINGLING) is occurred between these magmas.

Cites

No record.

References

تفکیک بخش های مختلف ایران از نظر وضع ساختمانی در ارتباط با حوضه های رسوبی

Cite

APA: Copy

EMAMI, M.H., ASADI, N., & KHEYRKHAH, M.. (2008). ANALYSIS OF GENETIC RELATIONS BETWEEN EOCENE VOLCANIC LAVAS IN SHIRINSU AREA (SOUTH OF LOWSHAN) BASED ON PETROGRAPHIC AND GEOCHEMICAL EVIDENCES. JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), 34(2), 109-119. SID. https://sid.ir/paper/2214/en

Vancouver: Copy

EMAMI M.H., ASADI N., KHEYRKHAH M.. ANALYSIS OF GENETIC RELATIONS BETWEEN EOCENE VOLCANIC LAVAS IN SHIRINSU AREA (SOUTH OF LOWSHAN) BASED ON PETROGRAPHIC AND GEOCHEMICAL EVIDENCES. JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT)[Internet]. 2008;34(2):109-119. Available from: https://sid.ir/paper/2214/en

IEEE: Copy

M.H. EMAMI, N. ASADI, and M. KHEYRKHAH, “ANALYSIS OF GENETIC RELATIONS BETWEEN EOCENE VOLCANIC LAVAS IN SHIRINSU AREA (SOUTH OF LOWSHAN) BASED ON PETROGRAPHIC AND GEOCHEMICAL EVIDENCES,” JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), vol. 34, no. 2, pp. 109–119, 2008, [Online]. Available: https://sid.ir/paper/2214/en

Related Journal Papers