Results 1 to 10 of about 12,814 (219)
Frontiers in Earth Science, 2021 The Oceanic Anoxic Event 2, at the Cenomanian-Turonian boundary (∼93.9 Ma), was an episode of widespread burial of organic matter in marine sediments, underlined by a positive carbon-isotope (δ13C) excursion observed worldwide.
Laurent Riquier +7 more
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Peculiarities of the study of pre-gas-hydrate deposits
Известия высших учебных заведений: Нефть и газ, 2023 A quantitative measure of well productivity is the productivity factor. Its value is determined by many factors, but especially by filtration-volume parameters of the zone immediately adjacent to the bottomhole.Filtration-capacitive properties of these ...
Yu. E. Katanov +2 more
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Известия высших учебных заведений: Нефть и газ, 2023 There is currently a significant depletion of Cenomanian gas reserves in Western Siberia, which have been the basis of Russian gas exports. This raises the challenge of developing reserves that could offset these volumes, such as hard-to-recover gas ...
A. Yu. Yushkov +4 more
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Turonian-Santonian echinoids from Egypt [PDF]
Geodiversitas, 2012 ABSTRACT Thirty echinoid species (18 regular and 12 irregular) and an undetermined species belonging to 14 genera are studied from the Turonian-Santonian sequence (14 species from Turonian, two species from Turonian-Santonian and 14 species from Coniacian-Santonian) of Abu Roash, Wadi Dakhl and Wadi Abu Qaada, Egypt.
Marouf Abdel-Aty Mohamed Abdelhamid +1 more
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Stripping back the modern to reveal the Cenomanian–Turonian climate and temperature gradient underneath [PDF]
Climate of the Past, 2020 During past geological times, the Earth experienced several intervals of global warmth, but their driving factors remain equivocal. A careful appraisal of the main processes controlling past warm events is essential to inform future climates and ...
M. Laugié +6 more
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Study of main planktonic foraminifera(Turonian-Santonian) in Kopeh-Dagh sedimentary environment, NE Iran [PDF]
Sustainable Earth Trends, 2021 In order to study the fossil contents of the Abderaz Formation for biostratigraphical purposes the 500 meters thick section was sampled at type section.
Meysam Shafiee Ardestani +1 more
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BIOSTRATIGRAPHY AND DEPOSITIONAL ENVIRONMENT OF THE OIL SHALE DEPOSIT IN THE ABAKALIKI FOLD BELT, SOUTHEASTERN NIGERIA; pp. 99–125 [PDF]
Oil Shale, 2010 The oil shale deposit in the Abakaliki anticlinorium has not been demarcated. The present study focused on the age, correlation and depositional environÂment of the oil shale using abundance, planktonic/benthonic ratio and species diversity of ...
O. A. EHINOLA
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Journal of the Palaeontological Society of India, 2023 It is proposed to consider Narmada Valley Late Cretaceous sequences in three sectors with proper selection of stratotype in each sector: Eastern Sector: comprising of Lameta group of rocks with type area in Jabalpur area, essentially laid down in ...
Syed A. Jafar
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Turonian Radiolarians from Karnezeika, Argolis Peninsula, Peloponnesus (Greece) [PDF]
Eclogae Geologicae Helvetiae, 2006 Near Karnezeika a roughly 140 m thick Upper Cretaceous section consists of interbedded pelagic limestones, cherts and coarse polymict breccias including ophiolites and shallow water limestones. At the base, pink pelagic limestones rest on deeply altered and fractured Lower Jurassic Pantokrator Limestone.
Bandini, Alexandre N. +2 more
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