Results 31 to 40 of about 15,912 (215)

Breakthrough and significance of unconventional oil and gas to classical petroleum geology theory

Petroleum Exploration and Development, 2017
Great changes of the global energy industry have been caused by the rapid development of unconventional oil and gas. It is necessary to deeply consider the profound influence of the unconventional oil and gas revolution on the classical petroleum geology
Chengzao JIA
doaj   +1 more source

Three-dimensional direct gravity inversion for Moho and basement depths of the Tuchinh-Vungmay basin, offshore southeast Vietnam, incorporating a lithosphere thermal gravity anomaly correction

Geocarto International, 2023
This paper presents the determination of the Moho and basement depths of Tuchinh-Vungmay basin (TCVMB) offshore southeastern Vietnam by the three dimension direct gravity inversion.
Trung Nguyen Nhu, Nam Bui Van, Kha Tran Van   +2 more
doaj   +1 more source

Exploring the cranial morphology and possible convergences of Triassic non‐crocodylomorph pseudosuchians (Archosauria: Pseudosuchia) with other sauropsids through linear morphometrics

The Anatomical Record, EarlyView.
Abstract Triassic pseudosuchians had highly diversified cranial morphologies. These archosaurs occupied diverse ecological roles, ranging from terrestrial predators and herbivores to semiaquatic ambush predators and possible waders. Here, we apply linear cranial morphometrics to assess possible convergences with other sauropsids from the clades ...
Rafael Terras, Rodrigo Temp Müller, Leonardo Kerber, Mirian Carbonera   +3 more
wiley   +1 more source

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson, Alison M. Murray, Donald B. Brinkman   +2 more
wiley   +1 more source

Tooth histotype and enameloid microstructure of Priohybodus arambourgi d'Erasmo, 1960 (Elasmobranchii: Hybodontiformes) from the Late Jurassic of northeastern Brazil

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, Valéria Gallo, Estevan Eltink   +2 more
wiley   +1 more source

Dynamic upper-ocean processes enhance mesopelagic carbon export of zooplankton fecal pellets in the southern South China Sea [PDF]

Biogeosciences
Zooplankton are key contributors to the marine biological carbon pump by converting phytoplankton-derived organic carbon into fast-sinking fecal pellets.
R. Wu, Z. Liu, J. Li, B. Lin, Y. Zhao, J. Cao, X. Zhang   +6 more
doaj   +1 more source

Inversion of the physical properties of seafloor surface sediments based on AUV sub-bottom profile data in the northern slope of the South China Sea

Scientific Reports, 2021
Based on the seafloor reflection coefficient obtained from autonomous underwater vehicle (AUV) sub-bottom profile survey data of the northern slope of the South China Sea, combined with the sample test data of seafloor surface sediments, we use the Biot ...
Qingjie Zhou, Xishuang Li, Bigui Huang, Lejun Liu, Shan Gao, Hang Zhou, Jie Liu, Baohua Liu, Chengyi Zhang   +8 more
doaj   +1 more source

Osteohistological evidence for terrestrial adaptation and an extended growth period in mekosuchine crocodylians and its potential role in their extinction

The Anatomical Record, EarlyView.
Abstract The Australasian crocodylian fossil record is dominated by the extinct endemic clade Mekosuchinae, with known members spanning the Eocene‐to‐Holocene. This diverse clade exhibited high morphological disparity, from early members superficially similar to Crocodylus, to more terrestrial forms later in the clade's evolutionary history.
Devin K. Hoffman, Cecily S. C. Nicholl, Oliver Bradley, Sreya Magar, Marie Sofia Sebaratnam, Alexandra Houssaye, Ryan N. Felice, Adam M. Yates, Stephen F. Poropat, Philip D. Mannion   +9 more
wiley   +1 more source

Timescales of methane seepage on the Norwegian margin following collapse of the Scandinavian Ice Sheet

Nature Communications, 2016
Understanding the timescales of gas hydrate dissociation and methane release are critical to gauge the potential climate impact. Here, the authors report a methane efflux chronology from five sites in Barents and Norwegian seas and show methane release ...
Antoine Crémière, Aivo Lepland, Shyam Chand, Diana Sahy, Daniel J. Condon, Stephen R. Noble, Tõnu Martma, Terje Thorsnes, Simone Sauer, Harald Brunstad   +9 more
doaj   +1 more source

Optimizing Strategies for Non‐Invasive Prospection of Settlements in the Intertidal Zone: A Case Study From the Centre of the Drowned Medieval Village of Tolsende (Scheldt Estuary, the Netherlands)

Archaeological Prospection, EarlyView.
ABSTRACT Medieval and early modern drowned villages in the intertidal zone of the Scheldt estuary (the Netherlands) constitute intriguing yet largely understudied components of north‐western Europe's underwater cultural heritage. Despite their high archaeological potential as time capsules of past settlement landscapes, research has remained limited ...
Jan Trachet, Sarah Bäumler, Stefan Krojer, Jeroen Verhegge, Wim De Clercq, Philippe De Smedt, Wouter H. Maes, Bente S. Majchczack, Immo Trinks, Dennis Wilken   +9 more
wiley   +1 more source