Results 81 to 90 of about 8,189 (339)

Modeling Crack Patterns by Modified STIT Tessellations

open access: yesImage Analysis and Stereology, 2020
Random planar tessellations are presented which are generated by subsequent division of their polygonal cells. The purpose is to develop parametric models for crack patterns appearing at length scales which can change by orders of magnitude in areas such
Roberto León   +3 more
doaj   +1 more source

Wetlands as environments of early human occupation: A new classification for freshwater palaeowetlands

open access: yesThe Depositional Record, EarlyView.
A new classification for inland freshwater palaeowetlands to be used in the field or core laboratory by sedimentologists, providing examples from the Guadix Basin (southern Spain). Abstract Present wetlands have proven to be delicate, biodiverse ecosystems, that are natural sinks for CO2 and act as good indicators for climate changes.
S. Pla‐Pueyo   +1 more
wiley   +1 more source

Interactive Estimation of the Fractal Properties of Carbonate Rocks [PDF]

open access: yesarXiv, 2018
Scale invariance of intrinsic patterns is an important concept in geology that can be observed in numerous geological objects and phenomena. These geological objects and phenomena are described as containing statistically selfsimilar patterns often modeled with fractal geometry.
arxiv  

Axisymmetric displacement flows in fluid-driven fractures [PDF]

open access: yesJournal of Fluid Mechanics. 2022;953:A36
Displacement flows are common in hydraulic fracturing, as fracking fluids of different composition are injected sequentially in the fracture. The injection of an immiscible fluid at the center of a liquid-filled fracture results in the growth of the fracture and the outward displacement of the interface between the two liquids. We study the dynamics of
arxiv   +1 more source

Reply to the discussion and comments of Pestilho, A.L.S. and Mors, R.A. (2025) on the paper by Gomes et al. (2024). Early diagenetic evolution based on petrography and stable isotope analysis in the Barra Velha Formation of the Brazilian Pre‐salt. The Depositional Record, 1–25. https://doi.org/10.1002/dep2.288

open access: yesThe Depositional Record, EarlyView.
Abstract We very much appreciate the comments of André; Pestilho and Agustin Mors on our paper discussing the early diagenesis of the Pre‐salt carbonates (Barra Velha Formation, BVF) in the Santos Basin (Gomes et al., 2024). We welcome the opportunity to respond and to clarify our interpretations concerning dolomite formation, diagenetic timing and ...
João Paulo Borges Gomes   +6 more
wiley   +1 more source

Correlation Between Fracture Azimuth, Surface Lineaments and Regional Tectonics: A case study from Belik District, Central Java, Indonesia

open access: yesJGEET: Journal of Geoscience, Engineering, Environment and Technology, 2019
Two major strike-slip faults with northeast-southwest and northwest-southeast orientation have shifted the southern Central Java, including Belik District.
Reza Syahputra   +2 more
doaj   +1 more source

Abstractions and automated algorithms for mixed domain finite element methods [PDF]

open access: yesarXiv, 2019
Mixed dimensional partial differential equations (PDEs) are equations coupling unknown fields defined over domains of differing topological dimension. Such equations naturally arise in a wide range of scientific fields including geology, physiology, biology and fracture mechanics.
arxiv  

The role of refluxing deep hypersaline brines and evaporite precipitation dynamics in the Castile Formation and marginal carbonate strata (Delaware Basin, USA)

open access: yesThe Depositional Record, EarlyView.
The Upper Permian Castile Formation of the Delaware Basin, a 515.3 m (1690.6 ft) thick deep‐water evaporitic sequence dominated by anhydrite and halite, is the focus of this study. This study's sedimentological and geochemical analysis of cores from the basin's centre and margin reveals that dynamic reflux of deep hypersaline brines significantly ...
Ander Martinez‐Doñate   +6 more
wiley   +1 more source

Two types of modern sediment dispersal systems in the western Taiwan foreland basin: Sediment transfer from basin to basin

open access: yesThe Depositional Record, EarlyView.
A classical peripheral foreland basin is bounded longitudinally by a pair of marginal ocean basins (DeCelles & Giles, 1996). The WTFB sediments transfer to adjacent marginal ocean basins. The western Taiwan foreland basin (WTFB) is regarded as a classical peripheral foreland basin, longitudinally bounded by the southern Okinawa Trough (SOT) to the ...
Cheng‐Shing Chiang   +2 more
wiley   +1 more source

Atomistic Simulations of Nanotube Fracture [PDF]

open access: yes, 2002
The fracture of carbon nanotubes is studied by atomistic simulations. The fracture behavior is found to be almost independent of the separation energy and to depend primarily on the inflection point in the interatomic potential. The rangle of fracture strians compares well with experimental results, but predicted range of fracture stresses is marketly ...
arxiv   +1 more source

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