کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4747315 1359902 2012 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Late Cretaceous calcareous nannofossil and planktonic foraminiferal bioevents of the shallow-marine carbonate platform in the Mitla Pass, west central Sinai, Egypt
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فسیل شناسی
پیش نمایش صفحه اول مقاله
Late Cretaceous calcareous nannofossil and planktonic foraminiferal bioevents of the shallow-marine carbonate platform in the Mitla Pass, west central Sinai, Egypt
چکیده انگلیسی

The first detailed biostratigraphic analyses of the Coniacian–middle Campanian shallow-marine carbonate successions exposed in the Mitla Pass, west central Sinai, Egypt have revealed the stratigraphic distribution of diverse calcareous nannofossil and planktonic foraminiferal species. Thirty-six calcareous nannofossils and thirty-two planktonic foraminifera are identified, indicating a Coniacian to middle Campanian age and four Tethyan planktonic foraminiferal and five calcareous nannofossil zones. A comparison of these bioevents from different palaeolatitudes shows considerable variation in age.Three sequence boundaries coincident with the Turonian/Coniacian, Coniacian/Santonian and Santonian/Campanian stage boundaries are recognized. A fourth sequence boundary is marked by a major upper Campanian to early Ypresian (early Eocene) unconformity. These sequence boundaries are primarily related to regional tectonism associated with the Syrian Arc Fold System and secondarily to eustatic sea-level fluctuations.


► We examine the Coniacian--middle Campanian succession of the Gebel Mitla section.
► 31 planktonic foraminiferal and 39 calcareous nannofossil species were identified.
► 4 Tethyan planktonic foraminiferal and 5 calcareous nannofossil zones are recorded.
► Some bioevents has revealed variations in the stratigraphic ranges.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cretaceous Research - Volume 33, Issue 1, February 2012, Pages 50–65
نویسندگان
, ,