Cambrian-Ordovician boundary in Western Koppeh-Dagh and Eastern Alborz

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.

Jahangir H.; GHOBADI POUR M.; ASHOURI A.R.

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

Journal Paper

Paper Information

Journal: GEOSCIENCES Year:2016 | Volume:26 | Issue:101 Page(s): 3-10

Download Full-Text

Persian Verion

View:

522

Download:

Cites:

Information Journal Paper

Title

Cambrian-Ordovician boundary in Western Koppeh-Dagh and Eastern Alborz

Author(s)

Jahangir H. | GHOBADI POUR M. | ASHOURI A.R. | Issue Writer Certificate

Keywords

FurongianQ1

TremadocianQ1

ConodontQ2

TrilobiteQ2

GraptoliteQ1

BiozoneQ2

Abstract

The Cambrian-Ordovician boundary strata in the Kalat section, western Koppeh-Dagh, comprise continuous succession of fine clastic sediments, mostly argillites with some shell beds, accumulated offshore. This interval contains analmost complete succession of Conodont Biozones, including the Cordylodus intermedius, Cordylodus lindstromi and Cordylodus angulatus Biozones. The first appearance of the planktonic Graptolite Rhabdinopora cf. Flabelliformis flabelliformis (Eichwald, 1840) in black argillite of the upper part of the Cordylodus lindstromi Biozone indicates relatively precise position of the Cambrian-Ordovician boundary in the section. Cambrian-Ordovician boundary beds in the eastern Alborz Region can be subdivided into three lithological units: Furongian bioclastic limestone mainly replaced by fine clastic sediments in the upper part, the terminal Cambrian Cruziana sandstone representing a shoal complex and the Tremadocian grey argillite accumulated offshore. In this area the position of Cambrian-Ordovician boundary is situated somewhat below the base of the Asaphellus inflatus-Dactylocephalus Trilobite Biozone.

Cites

No record.

References

No record.

Cite

APA: Copy

Jahangir, H., GHOBADI POUR, M., & ASHOURI, A.R.. (2016). Cambrian-Ordovician boundary in Western Koppeh-Dagh and Eastern Alborz. GEOSCIENCES, 26(101 ), 3-10. SID. https://sid.ir/paper/31842/en

Vancouver: Copy

Jahangir H., GHOBADI POUR M., ASHOURI A.R.. Cambrian-Ordovician boundary in Western Koppeh-Dagh and Eastern Alborz. GEOSCIENCES[Internet]. 2016;26(101 ):3-10. Available from: https://sid.ir/paper/31842/en

IEEE: Copy

H. Jahangir, M. GHOBADI POUR, and A.R. ASHOURI, “Cambrian-Ordovician boundary in Western Koppeh-Dagh and Eastern Alborz,” GEOSCIENCES, vol. 26, no. 101 , pp. 3–10, 2016, [Online]. Available: https://sid.ir/paper/31842/en

Related Journal Papers