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Optical and geochemical characterization of Upper Sinemurian (Lower Jurassic) fossil wood from the Lusitanian Basin (Portugal)
fossil wood carbon and nitrogen stable isotopes Sinemurian Lusitanian Basin Portugal
2017/4/11
It is hypothesized that carbon and nitrogen isotopic compositions (δ13C and δ15N) of fossil wood fragments will
provide useful information regarding conditions prior, during, and after deposition. El...
Radon activity concentrations measurements in some Jurassic caves of Poland are presented. The aim is to estimate
the radiation doses to casual visitors, cavers and guides in show caves. Radon levels...
Stable isotope compositions of a late Jurassic ammonite shell:a record of seasonal surface water temperatures in the southern hemisphere?
Stable isotope compositions late Jurassic ammonite shell seasonal surface water temperatures
2009/10/22
Exceptional preservation of aragonite secreted by ammonites offers an opportunity to determine the seasonal temperature variations of Mesozoic surface waters. Ontogenetic profiles of carbon and oxygen...
Geochemical Constraints on the Provenance, Mineral Sorting and Subaerial Weathering of Lower Jurassic and Upper Cretaceous Clastic Rocks of the Eastern Pontides, Yusufeli (Artvin), NE Turkey
shale and sandstone geochemistry provenance hydraulic sorting alteration Yusufeli-Artvin northeastern Turkey
2009/7/7
An integrated petrographic and geochemical study of the shales and sandstones of Early Jurassic and Late Cretaceous age in the Yusufeli area (Turkey) was carried out to obtain more information on the...
Jurassic Volcanism in the Eastern Pontides: Is it Rift Related or Subduction Related?
Eastern Pontides geochemistry Sr-Nd isotopes Jurassic basalt Turkey
2009/7/7
The Jurassic volcanic rocks in the centre of the northern zone (south of Trabzon City) provide important constraints on the evolution of Pontides. The investigated volcanic rocks form a transitional s...