Results 81 to 90 of about 8,420 (290)

Reflection seismic investigation in the Skellefte ore district [Elektronisk resurs] : A basis for 3D/4D geological modeling

open access: yes, 2014
The Skellefte ore district in northern Sweden is a Palaeoproterozoic volcanic arc and one of the most important ones hosting volcanogenic massive sulfide (VMS) deposits, producing mainly base metals and orogenic gold deposits.
Dehghannejad, Mahdieh,   +3 more
core  

Bazhenov fm unconventional reservoir 3D geological modeling methodology

open access: yes, 2016
The Bazhenov Formation has been studied for more than 50 years, but its petroleum potential, optimal STOIIP or resource estimation approaches, the methodology used to select a reservoir, determine its properties are still unclear.
Bukhanov, Nikita Vladimirovich   +2 more
core   +1 more source

Osteohistology of two phorusrhacids reveals uninterrupted growth strategy

open access: yesThe Anatomical Record, EarlyView.
Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer   +2 more
wiley   +1 more source

Geometry, evolution and scaling of fault relay zones in 3D using detailed observations from outcrops and 3D seismic data [PDF]

open access: yes, 2011
A new surface attribute was developed during the course of the thesis, which enables fault-related deformation – specifically, the apparent dip of mapped horizons measured in a direction perpendicular to the average strike of a fault array (here termed ...
Long, Jonathan James   +1 more
core  

3D modeling and visualization of geological structures with python-implemented B´ezier curves/surfaces [PDF]

open access: yes
Interactive 3D HTML models and visualizations of geological structures derived from classic surface geological information have been developed, for the first time, in a Python environment, using the key case of the tectonic Mula sheets in the Betic ...
Bullejos Lorenzo, Manuel   +1 more
core   +1 more source

A second species of non‐crocodyliform crocodylomorph from the Late Triassic fissure deposits of southwestern UK: Implications for locomotory ecological diversity in Saltoposuchidae

open access: yesThe Anatomical Record, EarlyView.
Abstract The Late Triassic–Early Jurassic fissures of the Bristol Channel area (southwest England and south Wales) are renowned for their diverse vertebrate faunas. These assemblages have yielded an array of predominantly small‐bodied forms that are crucial to our understanding of the early evolution of several major tetrapod clades.
Ewan H. Bodenham   +4 more
wiley   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

open access: yesThe Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri   +8 more
wiley   +1 more source

3D advanced geological prediction based on reflected seismic waves and its application effects

open access: yesMeitian dizhi yu kantan
ObjectiveFor the advance geological prediction of tunnels based on reflected seismic waves, the traditional 2D observation method tends to cause spatial positioning deviations of anomalies.
Sheng CAI
doaj   +1 more source

Study on the Couple of 3D Geological Model and Reservoir Numerical Simulation Results [PDF]

open access: yes, 2017
Taking Dongying Formation, Palaeogene, B Oilfield in Bohai Bay Basin as an example, this paper discusses research on coupling 3D geological model and reservoir numerical simulation results during oilfield development.
YE, xiaoming   +4 more
core   +1 more source

Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny

open access: yesThe Anatomical Record, EarlyView.
Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund   +4 more
wiley   +1 more source

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