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Paper Information

Journal:   IRANIAN JOURNAL OF PETROLEUM GEOLOGY   FALL 2012-WINTER 2013 , Volume 3 , Number 4; Page(s) 52 To 71.
 
Paper: 

LITHOSTRATIGRAPHY AND BIOSTRATIGRAPHY OF THE UPPER DALAN AND LOWER KANGAN UNITS IN PERSIAN GULF WITH SPECIAL EMPHASIS ON THE PERMO/ TRIASSIC BOUNDARY

 
 
Author(s):  MONIBI S., KHODAEI N., ZAMANI POZVEH Z.
 
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Abstract: 

The Upper Dalan and Lower Kangan stratigraphic units with 225m thickness were studied in one of the subsurface section in Persian Gulf area. According to the biostrarigraphic investigation on the dolomitic and limestone successions of the Upper Dalan unit, there are more than 30 index foraminifera and non-foraminifera species. One Paradagmarita/ Paraglobivalvulina/ Baisalina Assemblage Zone that divided to three distinct sub- assemblage zones
1. Rectostipulina quadrata/ Globivalvulina vonderschimitti Assemblage subzone
2. Dagmarita chanackchiensis/ Ichtyolaria latilimbata Assemblage subzone
3. Hemigordiopsis renzi/ Paradagmarita flabeliformis Assemblage subzone
have been distinguished in the stratigraphic section representing the Julfian to Earleast Dorashamian stage. The identified microfauna' assemblages can be corresponded to the Late Permian regional biozonation in the Tethys realm. The latest microfauna assemblages in the latest part of Dalan Formation exhibits a significant chronostratigraphic hiatus, just was cited in the Dalan/ Kangan (Permo/Triassic) boundary. There is no any evidence about Latest Dorashamian sediments in the study area. The Permo/Triassic boundary is a paraconformity type in the latest Permian biozones, which can be corresponded to other areas of the world. The Lower Kangan stratigraphic unit can be attributed to the Schytian age (Early Triassic age) on basis of presence of some index fossils such as Bivalves (Claraia sp.) and Serpulids (Spirorbis sp.). It should be stressed that the similar microfauna associations can be seen in other Iranian places such as Central Iran and Alborz areas, which is documented a distinct palaeobiogeographical relationship between the above-mentioned areas and Zagros realm on Permian and Triassic ages.

 
Keyword(s): UPPER DALAN, LOWER KANGAN, ASSEMBLAGE ZONE, PERMO/TRIASSIC BOUNDARY, PARACONFORMITY
 
 
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APA: Copy

MONIBI, S., & KHODAEI, N., & ZAMANI POZVEH, Z. (2013). LITHOSTRATIGRAPHY AND BIOSTRATIGRAPHY OF THE UPPER DALAN AND LOWER KANGAN UNITS IN PERSIAN GULF WITH SPECIAL EMPHASIS ON THE PERMO/ TRIASSIC BOUNDARY. IRANIAN JOURNAL OF PETROLEUM GEOLOGY, 3(4), 52-71. https://www.sid.ir/en/journal/ViewPaper.aspx?id=456570



Vancouver: Copy

MONIBI S., KHODAEI N., ZAMANI POZVEH Z.. LITHOSTRATIGRAPHY AND BIOSTRATIGRAPHY OF THE UPPER DALAN AND LOWER KANGAN UNITS IN PERSIAN GULF WITH SPECIAL EMPHASIS ON THE PERMO/ TRIASSIC BOUNDARY. IRANIAN JOURNAL OF PETROLEUM GEOLOGY. 2013 [cited 2021October28];3(4):52-71. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=456570



IEEE: Copy

MONIBI, S., KHODAEI, N., ZAMANI POZVEH, Z., 2013. LITHOSTRATIGRAPHY AND BIOSTRATIGRAPHY OF THE UPPER DALAN AND LOWER KANGAN UNITS IN PERSIAN GULF WITH SPECIAL EMPHASIS ON THE PERMO/ TRIASSIC BOUNDARY. IRANIAN JOURNAL OF PETROLEUM GEOLOGY, [online] 3(4), pp.52-71. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=456570.



 
 
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