High‐resolution Pliocene–Pleistocene calcareous nannofossil distribution and palaeoenvironmental changes in the northwest Nile Delta, Egypt

Lethaia ◽  
2021 ◽  
Author(s):  
Sherif Farouk ◽  
Sreepat Jain ◽  
Mohammad Abd‐Elazez ◽  
Tamer El Shennawy ◽  
Fatma Shaker
Keyword(s):  
High Resolution ◽  
Nile Delta ◽  
Calcareous Nannofossil ◽  
Palaeoenvironmental Changes

scholarly journals High resolution integrated microbiostratigraphy of the Lower Jurassic (late Pliensbachian–early Toarcian) of central Italy

1998 ◽  
Vol 17 (2) ◽  
pp. 153-172 ◽  
Author(s):  
Raffaella Bucefalo Palliani ◽  
Emanuela Mattioli
Keyword(s):  
High Resolution ◽  
Evolutionary History ◽  
Central Italy ◽  
Lower Jurassic ◽  
High Potential ◽  
Calcareous Nannofossils ◽  
Calcareous Nannofossil ◽  
Dinoflagellate Cyst ◽  
History Of ◽  
Global Events

Abstract. The integrated use of calcareous nannofossil and dinoflagellate cyst events in a study of the late Pliensbachian–early Toarcian interval in central Italy has yielded a high resolution biostratigraphy. The use of both the first and last occurrences of selected taxa belonging to the two phytoplankton groups allows the dating of the sediments with a very refined detail, even when lithologies are unfavourable to the preservation of one fossil group. The evolutionary history of calcareous nannofossils and dinoflagellate cysts during the early Jurassic and its links with global events are responsible for the high potential of this integrated biostratigraphy.

Enhanced Formation Evaluation and High-Resolution Facies Determination Using Spectroscopy Logs in the Nile Delta, Egypt

2010 ◽  
Author(s):  
Marie Van Steene ◽  
Adel Farghaly ◽  
Ahmed Abu El Fotoh ◽  
Susan Herron
Keyword(s):  
High Resolution ◽  
Nile Delta ◽  
Formation Evaluation

scholarly journals HIGH RESOLUTION BIOSTRATIGRAPHY AND PALEOECOLOGY OF THE EARLY PLIOCENE SUCCESSION OF PISSOURI BASIN (CYPRUS ISLAND)

2017 ◽  
Vol 43 (2) ◽  
pp. 763
Author(s):  
M. V Triantaphyllou ◽  
A. Antonarakou ◽  
H. Drinia ◽  
M. D. Dimiza ◽  
G. Kontakiotis ◽  
...  
Keyword(s):  
High Resolution ◽  
Water Column ◽  
Marine Sediments ◽  
Planktonic Foraminifera ◽  
Calcareous Nannofossil ◽  
Early Pliocene ◽  
Warm Temperate

The Pissouri basin (Cyprus Island) corresponds to a small tectonically controlled depression elongated NNW-SSE and widening southward in the direction of the deep Mediterranean domain. In the centre of the basin, the section Pissouri South, about 100 m thick, consists of well-preserved cyclic marine sediments including laminated brownish layers alternating with grey homogeneous marls. Plankton biostratigraphy (calcareous nannofossil and planktonic foraminifera) revealed a remarkable number of biovents bracketing the Zanclean-Piacenzian boundary. In particular the Highest Occurrence (HO) of Reticulofenestra pseudoumbilicus suggests the presence of NN14/15-NN16 nannofossil biozone boundary, dated at 3.84 Ma. Additionally the defined planktonic foraminiferal MPL3-MPL4a and MPL4a-MPL4b zone boundaries point to ages between 3.81 and 3.57 Ma, in Pissouri North section. Zanclean/Piacenzian boundary (3.6 Ma) is placed at 75.8 m from the base of the section, considering Discoaster pentaradiatus top paracme (3.61 Ma) and Globorotalia crassaformis first influx (3.6 Ma) bioevents. The cyclically developed sapropelic layers around the Zanclean – Piacenzian boundary suggest a climate characterized by a period of warm temperate conditions and a highly stratified water column that occurred at times of precession minima.

Sign in / Sign up

Export Citation Format

Share Document