Results 31 to 40 of about 5,273 (201)

RELATIONSHIP BETWEEN THE PALEOZOIC AND CENOSIOIC FAULTING ENSEMBLES IN THE WESTERN PART OF THE ALTAI-SAYAN FOLDED AREA

open access: yesГеодинамика и тектонофизика, 2023
Fault structures in folded areas are an important element of the geological structure. Their age and history of development affect seismicity, distribution of minerals, and engineering and geological characteristics of the area.
I. S. Novikov   +4 more
doaj   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

open access: yesThe Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

The achievements of Volodymyr Grytsenko in stratigraphy, paleontology and paleoenvironments and in the field of the geoheritage

open access: yesGeo&Bio, 2018
This paper is about the achievements of V. P. Grytsenko in scientific and pedagogical activity, his discoveries in the field of paleontology and stratigraphy.
M. Reshetnik, K. Rudenko
doaj   +1 more source

Building phenotypic character matrices for phylogenetic inference: exploration of 35 years of practice

open access: yesBiological Reviews, EarlyView.
ABSTRACT Recent methodological development in phylogenetic inference has focused predominantly on molecular data. However, renewed interest in other data types, particularly morphological data, has followed from the increased recognition of the power of total evidence and tip‐dating approaches, including fossil data, for inference of time‐scaled trees ...
Melanie J. Hopkins   +9 more
wiley   +1 more source

Slip versus dilation tendency parameter space as a tool for prospecting structurally controlled geothermal systems in greenfield: insights from the greater Ruhr region

open access: yesDeep Underground Science and Engineering, EarlyView.
This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski   +4 more
wiley   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

open access: yesDeep 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

Meander‐Bend Erosion Dynamics Along a Gravel‐Bed River: Insights From Short‐Term UAV Monitoring

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Riverbank erosion is a natural process in meandering rivers that contributes to sediment supply and geomorphic diversity, yet it can threaten infrastructure and human activities within the floodplain. Recently, many studies have used high‐resolution remote sensing technologies to measure bank erosion, but they often focus on technical aspects ...
Katarina Pavlek   +2 more
wiley   +1 more source

Neural Networks and Multivariate Analysis Based on Geochemical Data to Determine Stone Provenance From Ancient Calabrian Quarries (Southern Italy)

open access: yesArchaeometry, EarlyView.
ABSTRACT This study shows an innovative approach to determine the origin of some Calabrian rocks quarried used in ancient times. Twenty‐five quarries, distributed in all the Calabrian provinces (Southern Italy), were studied and sampled. Ten samples were taken from each quarry, for a total of 250 samples.
Domenico Miriello   +5 more
wiley   +1 more source

FAULT SYSTEMS IN THE UPPER CRUST OF THE CENTRAL ASIAN FOLDING BELT

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2020
This article considers the disjunctive deformation of the upper crust in the Tien Shan and Altai-Sayan regions of the Central Asian folding belt. An analysis of the diagrams of fault directions constructed on the basis of information on more than 3000 ...
V. S. Burtman
doaj   +1 more source

Diversity of Crinozoa (Echinodermata: Eocrinoidea, Blastoidea, Crinoidea) from the Paleozoic of Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2022
Paleozoic outcrops in Mexico containing echinoderms are located to the north, center and south of the country, mainly in the states of Baja California, Sonora, Chihuahua, Tamaulipas, Coahuila, Hidalgo, Puebla, Guerrero, Oaxaca, and Chiapas.
Blanca Estela Buitrón-Sánchez   +3 more
doaj   +1 more source

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