OPTICAL CHARACTERS, CHEMICAL COMPOSITION AND FORMATION MECHANISM OF COLORLESS SODIC AND SODIC-CALCIC AMPHIBOLES IN PIEMONTITE-QUARTZ SCHISTS FROM HIGH P-LOW T SANBAGAWA METAMORPHIC BELT IN CENTRAL SHIKOKU, JAPAN

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.

IZADYAR J.

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

Journal Paper

Paper Information

Journal: Iranian Journal of Crystallography and Mineralogy Year:2005 | Volume:13 | Issue:1 Page(s): 135-154

Download Full-Text

Persian Verion

View:

1,490

Download:

Cites:

Information Journal Paper

Title

OPTICAL CHARACTERS, CHEMICAL COMPOSITION AND FORMATION MECHANISM OF COLORLESS SODIC AND SODIC-CALCIC AMPHIBOLES IN PIEMONTITE-QUARTZ SCHISTS FROM HIGH P-LOW T SANBAGAWA METAMORPHIC BELT IN CENTRAL SHIKOKU, JAPAN

Author(s)

IZADYAR J. | Issue Writer Certificate

Keywords

PIEMONTITE-QUARTZ SCHISTQ4

SANBAGAWA METAMORPHIC BELTQ4

SODIC AND SODIC-CALCIC AMPHIBOLESQ4

Abstract

Colorless SODIC AND SODIC-CALCIC AMPHIBOLES occur in PIEMONTITE-QUARTZ SCHISTs in the Asemi-gawa (garnet zone) and Besshi (albite-biotite zone) areas of high P-low T SANBAGAWA METAMORPHIC BELT in central Shikoku, Japan. Colorless sodic amphiboles in the Asemi-gawa area are glaucophane while colorless sodic-calcic amphiboles from the Besshi area are barroisite and magnesiokatophorite. Colorless SODIC AND SODIC-CALCIC AMPHIBOLES are richer in Mg and poorer in Fe in comparison with the colored SODIC AND SODIC-CALCIC AMPHIBOLES from the epidote-quartz schists of the same metamorphic grade. Optical characters of the glaucophanes from the Asemi-gawa area are identified by their colorless and lack of pleochroism in the a, b and g directions; ng ^ Z = 13, 2V(a) = 20 and b = Y. Optical characters of magnesiokatophorite from the Besshi area are: colorless and without pleochroism in the a, b and γ directions; ng ^ Z =17, 2V(a) = 25 and b=Y. Chemical composition of the coexisting minerals with colorless SODIC AND SODIC-CALCIC AMPHIBOLES have shown a very high oxygen fugacity condition in which iron exists only as Fe3+ and occurs mostly in hematite. Therefore, such condition was responsible for formation of SODIC AND SODIC-CALCIC AMPHIBOLES which are very rich in Mg.

Cites

No record.

References

No record.

Cite

APA: Copy

IZADYAR, J.. (2005). OPTICAL CHARACTERS, CHEMICAL COMPOSITION AND FORMATION MECHANISM OF COLORLESS SODIC AND SODIC-CALCIC AMPHIBOLES IN PIEMONTITE-QUARTZ SCHISTS FROM HIGH P-LOW T SANBAGAWA METAMORPHIC BELT IN CENTRAL SHIKOKU, JAPAN. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 13(1), 135-154. SID. https://sid.ir/paper/3785/en

Vancouver: Copy

IZADYAR J.. OPTICAL CHARACTERS, CHEMICAL COMPOSITION AND FORMATION MECHANISM OF COLORLESS SODIC AND SODIC-CALCIC AMPHIBOLES IN PIEMONTITE-QUARTZ SCHISTS FROM HIGH P-LOW T SANBAGAWA METAMORPHIC BELT IN CENTRAL SHIKOKU, JAPAN. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2005;13(1):135-154. Available from: https://sid.ir/paper/3785/en

IEEE: Copy

J. IZADYAR, “OPTICAL CHARACTERS, CHEMICAL COMPOSITION AND FORMATION MECHANISM OF COLORLESS SODIC AND SODIC-CALCIC AMPHIBOLES IN PIEMONTITE-QUARTZ SCHISTS FROM HIGH P-LOW T SANBAGAWA METAMORPHIC BELT IN CENTRAL SHIKOKU, JAPAN,” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 13, no. 1, pp. 135–154, 2005, [Online]. Available: https://sid.ir/paper/3785/en

Related Journal Papers