Results 121 to 130 of about 63,308 (236)
Sedimentology, EarlyView.ABSTRACT Although the global expansion of oxygen‐depleted marine environments during the Early Toarcian Jenkyns Event (or Toarcian Oceanic Anoxic Event) is primarily inferred from successions in the NW European epicontinental basins, the timing of the expansion of anoxia in Tethyan basins, where hydrography potentially played a minor role, is poorly ...
Tamás Müller +6 more
wiley +1 more source
Sedimentology, EarlyView.ABSTRACT Shelf‐edge deltas are commonly interpreted to record basinward facies migration across uninterrupted, gently dipping shelf margins; however, examples from mixed siliciclastic‐carbonate margins reveal more complex depositional dynamics. Periods and areas of carbonate sedimentation within mixed siliciclastic‐carbonate margins can modify shelf ...
Abdulkarim Al‐Hussaini +3 more
wiley +1 more source
Sedimentology, EarlyView.ABSTRACT Thermodynamic constraints and empirical evidence often suggest that fabric‐retentive replacement dolomites are stable carbonate minerals that preserve ancient seawater properties. This study evaluates this hypothesis by examining the Upper Triassic Dolomia Principale in Northern Italy.
Vivien Folliot +8 more
wiley +1 more source
A bristle-nosed Jurassic ray-finned fish (Actinopterygii) bears true dermal odontodes on its snout. [PDF]
J AnatTeeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Stack J, Kligman BT, Stricklin ML.
europepmc +2 more sources
Downcurrent variation in submarine channel‐fill architecture from the shelf to upper slope
Sedimentology, EarlyView.ABSTRACT The transition between the shelf and the upper slope is often considered an area of sediment bypass, where steeper gradients increase flow velocities and maintain particles in suspension. In addition to transferring sediments into deeper basins, upper‐slope areas can also host channelised submarine deposits.
Moreno Pizzutto +6 more
wiley +1 more source
Petroleum bearing potential of the northwestern part of the Chardzhou Step and future prospects [PDF]
Нефтегазовая геология: Теория и практикаThis paper examines the petroleum bearing potential of the northwestern Chardzhou Step of the Bukhara-Khiva region of the Republic of Uzbekistan, encompassing the Gugurtli-Uchkyr and Kandym uplifts, and the opportunity for expanding the hydrocarbon ...
Tukhtaev R.R. +3 more
doaj
Shiyou shiyan dizhiThe shale oil and gas exploration potential of the Jurassic Qianfoya Formation in the Sichuan Basin is promising. However, there is still a lack of understanding regarding the basic sedimentary characteristics and development patterns of fine-grained ...
Jun PENG +5 more
doaj +1 more source
Revision of the Early Jurassic ichthyosaurian Temnodontosaurus zetlandicus
, 2021 editorial reviewedParvipelvia is a major clade of ichthyosaurians that appeared during the Late Triassic and rapidly diversified into a disparate assemblage of morphologies during the Early Jurassic. However, the interrelationships of early parvipelvians
Bennion, Rebecca +4 more
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