کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10122020 | 1642439 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Late Jurassic-Early Cretaceous palynostratigraphy of the onshore Mandawa Basin, southeastern Tanzania
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فسیل شناسی
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چکیده انگلیسی
New palynostratigraphic data are presented for Upper Jurassic and Lower Cretaceous formations of the Mandawa Basin, southeastern Tanzania. A Late Jurassic (KimmeridgianâTithonian) age is confirmed for the Kipatimu Formation, from which the terrestrial sporomorphs allow a rough correlation to the mid OxfordianâTithonian ClassopollisâAraucariacitesâShanbeipollenits Assemblage Zone. A dinoflagellate cyst assemblage recorded in the Mitole Formation correlates to the Dingodinium jurassicum-Kilwacysta assemblage as described from the Tithonian Trigonia smeei Bed of the Tendaguru Hill, southeast Tanzania. Dinoflagellate cyst assemblages in the upper Nalwehe Formation contain species typical of the HauterivianâBarremian, while the Kihuluhulu Formation contains marine microfloras of Aptian to Albian ages. The palynological records confirm the presence of sediments related to profound marine transgressions and subsequent sea-level high-stands in the Late Jurassic (KimmeridgianâTihonian) and in the late Early Cretaceous (AptianâAlbian).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Review of Palaeobotany and Palynology - Volume 258, November 2018, Pages 248-255
Journal: Review of Palaeobotany and Palynology - Volume 258, November 2018, Pages 248-255
نویسندگان
Morten Smelror, Katrine Fossum, Henning Dypvik, Wellington Hudson, Amina Mweneinda,