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Karevan, Mahnaz, Vaziri-Moghaddam, Hosein, Mahboubi, Asadollah, Moussavi-Harami, Reza. (1393). Biostratigraphy and paleo-ecological reconstruction on Scleractinian reef corals of Rupelian-Chattian succession (Qom Formation) in northeast of Delijan area. , 4(1), 11-24. doi: 10.22059/jgeope.2014.51189
Mahnaz Karevan; Hosein Vaziri-Moghaddam; Asadollah Mahboubi; Reza Moussavi-Harami. "Biostratigraphy and paleo-ecological reconstruction on Scleractinian reef corals of Rupelian-Chattian succession (Qom Formation) in northeast of Delijan area". , 4, 1, 1393, 11-24. doi: 10.22059/jgeope.2014.51189
Karevan, Mahnaz, Vaziri-Moghaddam, Hosein, Mahboubi, Asadollah, Moussavi-Harami, Reza. (1393). 'Biostratigraphy and paleo-ecological reconstruction on Scleractinian reef corals of Rupelian-Chattian succession (Qom Formation) in northeast of Delijan area', , 4(1), pp. 11-24. doi: 10.22059/jgeope.2014.51189
Karevan, Mahnaz, Vaziri-Moghaddam, Hosein, Mahboubi, Asadollah, Moussavi-Harami, Reza. Biostratigraphy and paleo-ecological reconstruction on Scleractinian reef corals of Rupelian-Chattian succession (Qom Formation) in northeast of Delijan area. , 1393; 4(1): 11-24. doi: 10.22059/jgeope.2014.51189

Biostratigraphy and paleo-ecological reconstruction on Scleractinian reef corals of Rupelian-Chattian succession (Qom Formation) in northeast of Delijan area

Geopersia
مقاله 2، دوره 4، شماره 1، شهریور 2014، صفحه 11-24    اصل مقاله (2.65 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22059/jgeope.2014.51189
نویسندگان
Mahnaz Karevan* 1؛ Hosein Vaziri-Moghaddam2؛ Asadollah Mahboubi1؛ Reza Moussavi-Harami1
1Department of Geology, Faculty of Science, Ferdowsi University of Mashhad, Iran
2Department of Geology, University of Isfahan, Iran
چکیده
In this research, biostratigraphy and paleo-ecological reconstruction of the Qom Formation deposits in Bijegan village, northeast of
Delijan, are discussed. The studied section is situated in the western margin of the Urumieh-Dokhtar magmatic arc (the intra-arc basin).
The Qom Formation deposits at the studied area are Rupelian-Chattian in age. Larger benthic foraminifers are used for biostratigraphy
with the occurrence of 14 genera and 16 species, which led to the identification of two faunal assemblages: 1 Nummulites vascus-
N.fichteli, and 2. Lepidocyclina-Operculina-Ditrupa. Oligocene coral assemblages from the studied section are investigated with regard
to its palaeoecological implications. These corals comprise four species of four genera and are compared with faunas from the
Mediterranean Tethys and Indo-pacific Ocean, and they have an affinity to corals of the Mediterranean Tethys. Re-deposited branching
Porites coral assemblages probably occurred in patchy dense frameworks which were destroyed during storm events and re-deposited
in the present stratified horizons. The Porites-Faviidae assemblage represented a common feature of Oligocene coral faunas and
increasing water energy.
 
کلیدواژه‌ها
Qom Formation؛ Rupelian-Chattian؛ Biostratigraphy؛ Paleo-ecology
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