Results 161 to 170 of about 3,284 (255)

A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout

Journal of Anatomy, EarlyView.
Teeth 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
Jack Stack, Ben T. Kligman, Maranda L. Stricklin   +2 more
wiley   +1 more source

Earliest evolution of stipules among vascular plants documented in the late Paleozoic stem group of Marattiales. [PDF]

BMC Biol
Zhou W, Sun W, Wang T, Li D, Pšenička J, Hill C, Boyce CK, Wang J.   +7 more
europepmc   +1 more source

The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman

Journal of Petroleum Geology, EarlyView.
ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi, Alan P. Heward, Lorraine B. Eglinton, Steve R. Packer, Darrin T. Stead   +4 more
wiley   +1 more source

Widespread abyssal turbidites record megathrust earthquake-triggered landslides and coseismic deformation in the Cascadia subduction zone. [PDF]

Sci Adv
Hill JC, Watt JT, Paull CK, Caress DW, Brothers DS, Arizmendi K, Gwiazda R, Kluesner J, Lundsten E, Nieminski NM, Padgett JS, Paduan JB, Snyder G.   +12 more
europepmc   +1 more source

Evolution, Routing and Reservoir Characteristics of Submarine Channels in a Structurally Deforming Slope Setting: Deep‐Water Joint Development Zone of Nigeria and São Tomé and Príncipe

Journal of Petroleum Geology, EarlyView.
ABSTRACT Deep‐water slope channels and associated facies are a major part of clastic sediment dispersal system extending from the shelf‐edge to the abyssal plain. The toe‐thrust area of the deep‐water Niger Delta enables the analysis of these channels and their interaction with evolving fault‐controlled sea‐floor topography to be determined ...
Stanley Ang, Mike Mayall, Lidia Lonergan
wiley   +1 more source

Sequence-lithofacies paleogeographic evolution and its control on deep and ultra-deep reservoir types: A case study of the Permian Maokou Formation in northeastern Sichuan Basin. [PDF]

PLoS One
Wang X, Tan W, Lu P, Wang Y, Li Q, Zhao L, Niu P, Cang Z, Gong B, Shen J.   +9 more
europepmc   +1 more source

1D Basin Modelling of Upper Jurassic to Upper Cretaceous Source Rocks in the Southern Pletmos Sub‐Basin, Outeniqua Basin, Offshore South Africa

Journal of Petroleum Geology, EarlyView.
ABSTRACT The Pletmos sub‐basin in the Outeniqua Basin, offshore South Africa, is divided by the Superior, Pletmos and Plettenberg faults into northern and southern depocentres. In this study, geological and organic geochemical data together with 1D basin modelling were used to investigate the burial, thermal and maturation histories, and the timing of ...
Fritz Ako Agbor, Sanelisiwe Mhlambi, Nimuno Achu Teumahji, Wasiu Adedayo Sonibare, Jan van Bever Donker   +4 more
wiley   +1 more source

Integrating 3D structural modelling and seismic interpretation to optimize hydrocarbon development in the Early Miocene Nukhul Formation, October Oil Field, Gulf of Suez, Egypt. [PDF]

Sci Rep
Khattab MA, Radwan AE, El-Anbaawy MI, El-Tehiwy AA.   +3 more
europepmc   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato, Luiz F. De Ros, Howri Mansurbeg   +2 more
wiley   +1 more source

Application of advanced filters and sediment depth estimators in the mapping of geologic structures related to mineralization. [PDF]

Sci Rep
Yadav NP, Thompson CE, Singh NSS, Saleh LH, Mohamed AMA, Mahariq I, Usanov S, Raupov D, Jumanazarov D, Shaik AS, Islam S, Ekwok SE.   +11 more
europepmc   +1 more source