EVALUATION OF LATE CAMPANIAN - EARLY MAASTRICHTIAN SURFACE WATER NUTRIENTS OF THE GURPI FORMATION, GURPI ANTICLINE: EVIDENCE FROM CALCAREOUS NANNOFOSSILS

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MAHANIPOUR A.; NAJAFPOUR A.; DASTANPOUR M.

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Journal: GEOSCIENCES Year:2017 | Volume:26 | Issue:102 Page(s): 257-266

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Title

EVALUATION OF LATE CAMPANIAN - EARLY MAASTRICHTIAN SURFACE WATER NUTRIENTS OF THE GURPI FORMATION, GURPI ANTICLINE: EVIDENCE FROM CALCAREOUS NANNOFOSSILS

Author(s)

MAHANIPOUR A. | NAJAFPOUR A. | DASTANPOUR M. | Issue Writer Certificate

Keywords

PALEOECOLOGYQ2

GURPI FORMATIONQ2

BIOSTRATIGRAPHYQ2

CAMPANIANQ2

MAASTRICHTIANQ1

CALCAREOUS NANNOFOSSILSQ1

Abstract

Calcareous nannofossils have been investigated at the lower part of the GURPI FORMATION at the southwest of Gurpi anticline. According to the index CALCAREOUS NANNOFOSSILS CC22/UC15eTP to CC24/UC18 bio-zones have been identified and the age of Late CAMPANIAN - Early MAASTRICHTIAN is considered for the studied interval. Statistical analysis of the assemblages indicate the presence of high and low nutrient taxa. The relative abundance of oligotrophic taxa (Watznaueria barnesae, Watznaueria fossacincta, Prediscosphaera spp., Eiffellithus spp., Lithraphidites carniolensis, Staurolithites spp., Micula staurophora, Cribrosphaerella ehrenbergii) is higher than eutrophic forms (Biscutum constans, Discorhabdus ignotus, Placozygus spiralis, Reinhardtites spp., Zeugrhabdotus spp., Tranolithus orionatus), and an increasing trend in the relative abundance of oligotrophic taxa along with a decreasing trend in the relative abundance of eutrophic forms can be observed towards the upper parts of the section (Campanian-Maastrichtian boundary and Early MAASTRICHTIAN).

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APA: Copy

MAHANIPOUR, A., NAJAFPOUR, A., & DASTANPOUR, M.. (2017). EVALUATION OF LATE CAMPANIAN - EARLY MAASTRICHTIAN SURFACE WATER NUTRIENTS OF THE GURPI FORMATION, GURPI ANTICLINE: EVIDENCE FROM CALCAREOUS NANNOFOSSILS. GEOSCIENCES, 26(102), 257-266. SID. https://sid.ir/paper/31488/en

Vancouver: Copy

MAHANIPOUR A., NAJAFPOUR A., DASTANPOUR M.. EVALUATION OF LATE CAMPANIAN - EARLY MAASTRICHTIAN SURFACE WATER NUTRIENTS OF THE GURPI FORMATION, GURPI ANTICLINE: EVIDENCE FROM CALCAREOUS NANNOFOSSILS. GEOSCIENCES[Internet]. 2017;26(102):257-266. Available from: https://sid.ir/paper/31488/en

IEEE: Copy

A. MAHANIPOUR, A. NAJAFPOUR, and M. DASTANPOUR, “EVALUATION OF LATE CAMPANIAN - EARLY MAASTRICHTIAN SURFACE WATER NUTRIENTS OF THE GURPI FORMATION, GURPI ANTICLINE: EVIDENCE FROM CALCAREOUS NANNOFOSSILS,” GEOSCIENCES, vol. 26, no. 102, pp. 257–266, 2017, [Online]. Available: https://sid.ir/paper/31488/en

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