Results 41 to 50 of about 9,383,845 (204)
Известия Томского политехнического университета: Инжиниринг георесурсов, 2019 Genesis of oil deposits of pre-Jurassic complex in Western Siberia is a subject of heated debates. It is conventional that the accepted concept of "the main source" of hydrocarbons in pre-Jurassic deposits defines the strategy of their searches.
Marina Kuzina +2 more
doaj +2 more sources
New ophthalmosaurid ichthyosaurs from the European lower cretaceous demonstrate extensive ichthyosaur survival across the Jurassic–Cretaceous boundary [PDF]
, 2012 Background Ichthyosauria is a diverse clade of marine amniotes that spanned most of the Mesozoic. Until recently, most authors interpreted the fossil record as showing that three major extinction events affected this group during its history: one ...
Ralf Kosma (189585) +64 more
core +1 more source
Известия Томского политехнического университета: Инжиниринг георесурсов, 2019 Determination of "the major source" of hydrocarbons of pre-Jurassic oil-and-gas bearing complex defines the genesis of oil accumulations in pre-Jurassic base of Western Siberia and, consequently, the strategy and basis for prospecting technology.
Galina Lobova +2 more
doaj +2 more sources
The evolution of large-bodied theropod dinosaurs during the Mesozoic in Asia [PDF]
, 2010 The fossil record of large-bodied, apex carnivorous theropod dinosaurs in Eastern Asia is now among the best understood in the world, thanks to new discoveries and reinterpretations of long-neglected fossils.
Benson, R. B. J. +6 more
core +1 more source
Sharks, Rays and a Chimaeroid from the Kimmeridgian (Late Jurassic) of Ringstead, Southern England [PDF]
, 2002 Sampling of a lenticular concentration of vertebrate debris and associated sediments from the lower Kimmeridgian of southern England has allowed the study of a diverse and abundant assemblage of chondrichthyan remains.
Underwood, Charlie J.
core +4 more sources
The Anatomical Record, EarlyView.Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva +2 more
wiley +1 more source
Biological Reviews, EarlyView.ABSTRACT During their long evolutionary history, land plants have evolved a range of adaptations to different abiotic stressors. These help explain present‐day diversity and distribution patterns, as well as the potential resilience of natural and agricultural systems to a changing climate. Most previous research has focused on adaptation to individual
Marc Fradera‐Soler +6 more
wiley +1 more source
GeoresursyThis paper presents the results of a regional study of the tectonic structure of the West Siberian Plate and its margins in the context of theoretical concepts regarding continental evolution.
E. A. Potapova +3 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu +4 more
wiley +1 more source
Energy Science &Engineering, EarlyView.Formed ~1.4 Ga, the carbonate reservoir of the Jixian System is a key geothermal reservoir in northern China. Differential basin–mountain evolution since the Cenozoic led to distinct reservoir‐forming histories; consequently, this same reservoir shows marked productivity contrasts between intramontane basins and the large rift Bohai Bay Basin ...
Chuanqing Zhu +6 more
wiley +1 more source