Isotope data from bulk carbonates, micrite, marine calcite cements, non-skeletal grains and brachiopods indicate deposition of a wide spectrum of warm to cold water carbonates during the Ordovician and the Jurassic. This isotopic interpretation is supported by warm to cold climatic models proposed for the Ordovician and the Jurassic. These carbonates formed during the Greenhouse mode (condition...

Despite increasing claims of pre-Cretaceous angiosperms, whether there really are angiosperms in the Jurassic is apparently still an open question for many people before further evidence is available. This question can only be answered by studying more Jurassic plant fossils. Here we report a fossil angiosperm, Yuhania daohugouensis gen. et sp. nov, from the Middle Jurassic of Inner Mongolia, C...

The main reservoir in the Dixie Valley geothermal field of Nevada is hosted in fractured Jurassic rocks within the hanging wall of the Stillwater fault. Within the Jurassic sequence, at least four major stages of alteration related to the fault system can be identified. The paragenetic sequence from oldest to youngest consists of Stage I) biotite-potassium feldspar veins, and epidote-chlorite-c...

Nymphites priscus (Weyenbergh, 1869) from the Late Jurassic of Solnhofen (Germany), type species of the genus Nymphites Haase, 1890, is redescribed. The genus is assigned to the Nymphidae. The taxon Nymphitidae is not valid; it is an artificial aggregation of fossil genera. Two species new to science, one named, of Nymphites from the Middle Jurassic locality of Daohugou (Inner Mongolia, China) ...

isotope data from bulk carbonates, micrite, marine calcite cements, non-skeletal grains and brachiopods indicate deposition of a wide spectrum of warm to cold water carbonates during the ordovician and the jurassic. this isotopic interpretation is supported by warm to cold climatic models proposed for the ordovician and the jurassic. these carbonates formed during the greenhouse mode (condition...

In modern conditions of high demand for oil reserves in the Russian Federation, most important region its production remains West Siberian and gas basin with target objects well studied developed Jurassic Cretaceous sediments. The degree depletion at traditional sites low exploration complex unconventional accumulations contribute to intensification prospecting activities Achimov, Bazhenov Tyum...

Stable isotope compositions of a late Jurassic ammonite shell: a record of seasonal surface water temperatures in the southern hemisphere? C. Lécuyer and H. Bucher Laboratory “Paléoenvironnements & Paléobiosphère”, UMR CNRS 5125 , Bâtiment “Geode”, Université Claude Bernard Lyon I et Institut Universitaire de France, 27–43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne, France Paläontologisc...