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Calcareous nannofossils
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The Oligocene Ruslar Formation, an equivalent of the Maykop Suite, is a potential hydrocarbon source rock in the western Black Sea Basin. In contrast to the offshore areas, the depositional environment and hydrocarbon source rock potential of onshore Bulgaria sediments are largely unknown. Hence, a 14-m-thick section of the Ruslar Formation, exposed near Karadere (Black Cape) along the Black Sea coast, provides an excellent opportunity to study the upper part of the Ruslar Formation.
21p
tanmocphong
29-01-2022
11
1
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Trong bài viết này, đối tượng nghiên cứu là trầm tích Miocene giữa - Pliocene dưới được lắng đọng hoàn toàn trong môi trường biển thuộc khu vực phía Đông, Lô 05-1, bể Nam Côn Sơn. Địa tầng phân tập trong mặt cắt được minh giải trên cơ sở kết quả phân tích sinh địa tầng của các nhóm hóa thạch trùng lỗ (foraminifera), tảo vôi (calcareous nannofossil) và tảo biển (marine dinoflagellate).
12p
vibeirut2711
19-08-2020
52
2
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This paper focuses on relative fluctuation of sea water temperatures during the Middle and Late Miocene, emphasised by cold and warm nannofossil changes in abundance in 2 wells. At the A-1 well in the Middle Miocene, the total abundance of cooler water species is 45%, while that of the warmer species is 3%.
17p
vidonut2711
09-11-2019
9
0
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The age of the marine succession capping the basement rocks of the central Taurides in the Mut-Ermenek Basin is constrained using calcareous nannofossil biochronology. The Olukpınar section, which correlates with the biozones between MNN5a and MNN6b (late Langhian-late Serravallian), represents a deeper marine environment developed lateral to the Ermenek platform.
19p
vidonut2711
09-11-2019
8
1
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The time interval of the sedimentation in the southern Hellenic Thrace Basin (Lemnos Island, northeast Aegean Sea) was studied, based on the qualitative analysis of calcareous nannoplankton and quantitative analysis of planktonic foraminifera. The present study offers the first taxonomic analysis of planktonic foraminifera of this age in the Hellenic southern Thrace Basin (Lemnos Island).
22p
viminotaur2711
30-10-2019
14
1
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