搜索结果: 1-15 共查到“理学 Jurassic”相关记录37条 . 查询时间(0.078 秒)
An ancient desert covered in sand dunes as far as the eye could see, where dinosaurs and small mammals once roamed, may have been the real Jurassic Park. Today, the Navajo Sandstone, as it's called, i...
Exceptionally preserved Jurassic sea life found in new fossil site
Jurassic sea life new fossil site
2017/2/16
A trove of exceptionally preserved Jurassic marine fossils discovered in Canada, rare for recording soft-bodied species that normally don’t fossilize, is expanding scientists’ view of the rich marine ...
Jurassic–Paleogene intraoceanic magmatic evolution of the Ankara Mélange, north-central Anatolia, Turkey
Jurassic–Paleogene interoceanic magmatic evolution the Ankara Melange north-central Anatolia Turkey
2015/1/6
Oceanic rocks in the Ankara Mélange along the Izmir–Ankara–Erzincan suture zone (IAESZ) in north-central Anatolia include locally coherent ophiolite complexes (~ 179 Ma and ~ 80̷...
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...
Petrological vestiges of the Late Jurassic–Early Cretaceous transition from rift to back-arc basin in southernmost Chile: New age and geochemical data from the Capitán Aracena, Carlos III, and Tortuga ophiolitic complexes
Rocas Verdes ophiolites rift to back-arc basin transition U–Pb dating geochemistry mineral chemistry microbes
2017/4/11
The ophiolitic remnants of the Upper Mesozoic Rocas Verdes basin in southernmost South America were studied from
the perspectives of petrography, chemistry of minerals, bulk-rock geochemistry, and U–...
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...
Crescentiella,a new name for "Tubiphytes" morronensis Crescenti,1969:an enigmatic Jurassic–Cretaceous microfossil
Crescentiella Tubiphytes Labes Cyanobacteria Foraminifera systematics Jurassic Cretaceous.
2009/12/7
Several organisms or interaction of organisms have been described for a long time interval from late Paleozoic to Cretaceous as Tubiphytes with type species T. obscurus MASLOV (1956). Paleozoic Tubiph...
Palaeobiogeography of the genus Latochara (fossil Charophyta) in the Upper Jurassic of Southern Europe.New data from Oléron Island (France)
Charophytes ostracods vertebrates Tithonian France bioprovinces
2009/12/7
A charophyte assemblage including Latochara tenuicostata (PECK 1937) and Mesochara gr. voluta (PECK 1937) was found in the Lower Tithonian bone-bed 148 of the stratigraphic section at the Pointe de Ch...
Petrascula iberica (DRAGASTAN & TRAPPE),Tersella genotii BARATTOLO & BIGOZZI,and the relationships of club-shaped dasycladalean algae during Late Triassic-Early Jurassic times
Club-shaped dasycladales systematic High and Middle Atlas–Morocco North-eastern Spain
2009/12/7
New observations on abundant material from the type locality of Petrascula iberica (DRAGASTAN & TRAPPE) GRANIER et al. 2003, reveal the presence of a reproductive structure (ampulla) located on the in...
Direct Rhenium-Osmium age of the Oxfordian-Kimmeridgian boundary,Staffin bay,Isle of Skye,U.K.,and the Late Jurassic time scale
Direct Rhenium-Osmium age Oxfordian-Kimmeridgian boundary Staffin bay Late Jurassic time scale
2009/12/2
Rhenium-Osmium (Re-Os) dating of black shale of the proposed Global Stratotype Section and Point (GSSP) for the Oxfordian-Kimmeridgian boundary, at Staffin Bay, Isle of Skye, U.K., yields an age of 15...
High resolution stratigraphy of the Lower Jurassic and Aalenian of Arctic regions as the basis for detailed palaeobiogeographic reconstructions
High resolution stratigraphy Lower Jurassic Arctic regions palaeobiogeographic reconstructions
2009/12/2
Lower Jurassic and Aalenian deposits are widespread in the Arctic Basin and in northwestern Europe. The succession of Lower Jurassic lithologic units is very similar throughout the Arctic regions. The...
Lower and Middle Jurassic foraminiferal and ostracod biostratigraphy of the eastern Barents Sea and correlation with northern Siberia
Jurassic foraminiferal ostracod biostratigraphy eastern Barents Sea northern Siberia
2009/12/2
The Barents Sea shelf and adjacent areas comprise one of the important petroleum-bearing provinces of the world. During the last three decades,these areas have received considerable interest in the ex...
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...
Anew species of extinct bullhead sharks,Paracestracion viohli sp. nov.(Neoselachii, Heterodontiformes),from the Upper Jurassic of South Germany
Heterodontidae Late Jurassic Schamhaupten Diversity
2009/10/20
The early history of heterodontid sharks is documented mainly by isolated teeth. So far, three different heterodontid genera have been recorded from the Jurassic: Proheterodontus from theMiddle Jurass...
The Late Jurassic neoselachian Macrourogaleus FOWLER,1947 is a palaeospinacid shark(Elasmobranchii;Synechodontiformes)
Neoselachii Palaeospinacidae Macrourogaleus Late Jurassic
2009/10/20
The taxonomy of palaeospinacid sharks (Chondrichthyes, Neoselachii) is reviewed. New skeletal material from the famous Late Jurassic lithographic limestones of southern Germany (Solnhofen area and Nus...