نتایج جستجو برای: turonian
تعداد نتایج: 378 فیلتر نتایج به سال:
The Cretaceous pelagic carbonate succession, i.e., Goru Formation was studied in the Chutair Section, Sulaiman Range, representing part of eastern Tethys for paleoenvironment and bio-sequence stratigraphy. Eight planktonic foraminiferal biozones are identified which include: 1. Muricohedbergella planispira Interval Zone; 2. Ticinella primula 3. Biticinella breggiensis 4. Rotalipora appenninica ...
Tidal siliciclastic deposits of the Turonian Nimar Sandstone (Bagh Formation), India, contain several arthropod trackways which have been ascribed to different ichnogenera by Chiplonkar and Badve (1970). Examination their type material along with additional from same allows a revision these ichnotaxa. As result, Oniscoidichnus communis Badve, 1970 is retained, ampla 1970, O. elegans robustus Dr...
The North Pyrenean Zone corresponds to the palaeopassive margin of Iberia plate, at foot which subcontinental mantle was exhumed during Albian times. Rare bodies rocks associated with strongly sheared lenses continental crust are scattered among metasediments. Significant fluid flow occurred along a major décollement basement–Trias interface in Urdach massif (Chaînons Béarnais). Fluids broad ra...
In South America, most titanosaur species are represented by incomplete skeletal elements lacking well-preserved cervical vertebrae. In this context, the discovery of cervical remains assigned to Mendozasaurus neguyelap González Riga is relevant from a systematic viewpoint. The fossils were found in the paleontological site and assemblage of the holotype, Río Neuquén Subgroup, late Turonian – l...
The Mesozoic is marked by several widespread occurrences of intense organic matter burial. Sediments from the largest of these events, the Cenomanian-Turonian Oceanic Anoxic Event (OAE 2) are characterized by lower nitrogen isotope ratios than are seen in modern marine settings. It has remained a challenge to describe a nitrogen cycle that could achieve such isotopic depletion. Here we use nitr...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید