نتایج جستجو برای: lower eocene
تعداد نتایج: 695634 فیلتر نتایج به سال:
Analysis of lithofacies, paleoflow directions, and sandstone petrography of upper Paleocene-lower Eocene paralic and continental sediments exposed along the transpressional suture zone of the western margin of the Indian plate indicate that the process of deformation and uplift of the carbonate shelf in this area had started by late Paleocene time. This tectonic uplift and deformation is docume...
[1] Strontium and neodymium radiogenic isotope ratios in early to middle Eocene fossil fish debris (ichthyoliths) from Lomonosov Ridge (Integrated Ocean Drilling Program Expedition 302) help constrain water mass compositions in the Eocene Arctic Ocean between !55 and !45 Ma. The inferred paleodepositional setting was a shallow, offshore marine to marginal marine environment with limited connect...
The Open University's repository of research publications and other research outputs Testing the Cenozoic multisite composite ¡sup¿18¡/sup¿O and ¡sup¿13¡/sup¿C curves: new monospecific Eocene records from a single locality, Demerara Rise (Ocean Drilling Program Leg 207) Journal Article (2006). Testing the Cenozoic multisite composite 18O and 13C curves: new monospecific Eocene records from a si...
The Eocene to Lower Oligocene deposits of the Penyu and Malay basins are formed by fluvial-lacustrine with marine influence in latter. sequence consists mainly siltstone, several intercalations fine-grained sand volcanic tuff. Based on well data, Mid-Upper sediments exist Basin deeper parts half grabens sub-basins. Hence, this implies age basin initiation at Mid-Eocene, rather than as tradition...
Using the Max Planck Institute for Meteorology Earth System Model, we investigate the forcing of forests and the feedback triggered by forests in the pre-industrial climate and in the early Eocene climate (about 54 to 52 million years ago). Other than the interglacial, pre-industrial climate, the early Eocene climate was characterised by high 5 temperatures which led to almost ice-free poles. W...
The study of a new specimen of Petrolestes hendersoni from the Eocene Green Formation allows a more precise description of the enigmatic damselfly and the diagnosis of the Petrolestini. Petrolestes messelensis sp. nov. is described from the Eocene Messel Formation in Germany, extending the distribution of the Petrolestini to the European Eocene. The new damsel-dragonfly family Pseudostenolestid...
The Hexapodidae was known to date from the Cenozoic of Veneto by Stevea cesarii Beschin, Busulini, De Angeli & Tessier, 1994, from the middle Eocene of Chiampo Valley (Vicenza), and Palaeopinnixa sp. from the upper Eocene of Possagno (Treviso). Recent discoveries from the Eocene of Vicenza area allowed to describe three new genera and four new species of hexapodids. Bellhexapus granulatus n. ge...
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