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Showing 1 to 9 of 9 for “"Micropalaeontology"”.
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Micropalaeontology, Palaeoenvironments and Sequence Stratigraphy of the Sulaiy Formation of Eastern Saudi Arabia
… lowermost Valanginian. The investigation of the micropalaeontology has provided considerable insights into the biocomponents of Sulaiy and the base of Yamama formations in order to identify their biofacies. These microfossils include rotalid foraminifera, miliolid foraminifera, agglutinated …
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ASPECTS OF THE MICROPALAEONTOLOGY AND STRATIGRAPHY OF CRETACEOUS SHELF CARBONATES FROM THE OMAN MOUNTAINS
Five outcrop sections (Wadi Mi'aidin, Wadi Bani Kharus, Jebel Madar, Jebel Madamar and Jebel Salak), exposing Thamama and Wasia Group sediments were sedimentologically logged and sampled. Thin sections of each of the Thamama Group samples were prepared for micropalaeontological and microfacies …
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Sedimentology and micropalaeontology of gravity cores from the N.E. Atlantic continental slope south west of Ireland
Eleven gravity cores from the continental margin off Eire and Land's End (SW England) were examined and found to document the major trends of the Late Pleistocene climate. Several stratigraphic indicators; - carbonate content, sediment texture, grain size, composition, nature of terrigenous …
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FORAMINIFERAL DISTRIBUTION AND SEQUENCE STRATIGRAPHY OF OXFORDIAN SUCCESSIONS IN THE WESSEX/ANGLO-PARIS BASIN
The use of micropalaeontology within a sequence stratigraphic context is rapidly emerging as a valuable tool for the recognition of ancient cycles and sequences. This study shows how micropalaeontology can be used to develop insights into sequence stratigraphic interpretations. A micropalaeontology …
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Palaeoceanographic conditions and palaeoproductivity changes from the sub-Antarctic island South Georgia since the late deglacial, using marine micropalaeontology and geochemistry
This thesis presents a high-resolution multiproxy reconstruction of palaeoceanographic conditions and palaeoproductivity on the South Georgia shelf spanning the late deglacial through the Holocene. South Georgia lies within the path of the Antarctic Circumpolar Current (ACC) and the Southern …
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Palaeoenvironmental analysis of the upper Cenomanian and lower Turonian limestone beds in the Sergipe Basin, northeastern Brazil, based on microfacies analysis, micropalaeontology and stable isotopes
Die Kalksteinschichten des oberen Cenoman- unteren Turon (mittlere Kreide) des Sergipe Beckens in Nordost-Brasilien, wurden bezüglich des Paläoenvironments und der Mikrofazies untersucht. Die Mikrofauna wurde auf ihre biostratigraphische Verwendbarkeit analysiert und zur Interpretation des …
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Palaeoenvironments and position of the Precambrian–Cambrian boundary within the lower Vanrhynsdorp Group of South Africa: sedimentary facies analysis, U-Pb series zircon geochronology and micropalaeontology
The Vanrhynsdorp Group is a mainly fluvio-marine siliclastic succession that outcrops in the northwestern part of South Africa. The critical Precambrian-Cambrian boundary falls within the group, however the depositional environments across the boundary, its exact stratigraphic position and nature …
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The sedimentology, palaeoecology and stratigraphy of cretaceous rocks in N.W. Scotland
… Period. Detailed field observations, macro- and micropalaeontology (including palynology), sedimentology and structural data were integrated in an attempt to achieve these aims. Fieldwork was conducted in Morvern (Argy 11) and the Inner Hebridean islands' of lYlul], Eigg and Skye. In the proposed …
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Antarctic phytoplankton and climate change using Holocene sedimentary DNA, fossils and chemical proxies.
The West Antarctic Peninsula (WAP) is one of Earth’s fastest-warming regions, of particular concern given its marine-based ice sheets. Since the 1950s, mean air temperature has risen by ~2°C, and most glaciers are retreating with several ice shelves having already thinned or collapsed. Strengthened …