Results 61 to 70 of about 66,192 (275)

Quantification of rheological parameters in deep‐sea mining plumes

Deep Underground Science and Engineering, EarlyView.
This study explores the variations in rheological properties observed during the propagation of deep‐sea mining plumes, utilizing rheological test data obtained from kaolin clay plumes. Subsequently, taking into account the differences in sediment properties, the effects of clay content and clay mineral composition on the rheological parameters of ...
Xiaolei Liu, Yihan Liu, Yonggang Jia, Xingsen Guo   +3 more
wiley   +1 more source

Investigation of the failure characteristics of fissure tunnels under dynamic and static combinations

Deep Underground Science and Engineering, EarlyView.
This article aims to investigate the dynamic fracture response of fractured tunnel models under zero geological stress through physical experiments and numerical simulations. It further simulates the dynamic fracture characteristics of fractured tunnel models under geological stress ranging from 0 to 2.5 MPa using the numerical software AUTODYN ...
Peng Ying, Yu Ying, Xiaohan Li, Han Zhao, Kewei Yu, Zheming Zhu, Lei Zhou, Xibin Li   +7 more
wiley   +1 more source

Phase change in subducted lithosphere, impulse, and quantizing Earth surface deformations [PDF]

Solid Earth, 2015
The new paradigm of plate tectonics began in 1960 with Harry H. Hess's 1960 realization that new ocean floor was being created today and is not everywhere of Precambrian age as previously thought. In the following decades an unprecedented coming together
C. O. Bowin, W. Yi, R. D. Rosson, S. T. Bolmer   +3 more
doaj   +1 more source

Present-day stress orientations and tectonic provinces of the NW Borneo collisional margin [PDF]

, 2010
Extent: 15p.Borehole failure observed on image and dipmeter logs from 55 petroleum wells across the NW Borneo collisional margin were used to determine maximum horizontal stress (σH) orientations; combined with seismic and outcrop data, they define seven
Agostinelli, Ali, Barton, Bell, Bell, Bell, Bol, Brudy, Christopher K. Morley, Franke, Hall, Hall, Hamilton, Hazebroek, Hazebroek, Heidbach, Hesse, Hillis, Hillis, Hinz, Hinz, Hiscott, Hutchison, Ingram, James, James Clark, King, King, King, King, King, Kirsch, Lambiase, Madon, Madon, Madon, Madon, Mandl, Mardia, Mark R. P. Tingay, Mastin, McGilvery, Michel, Milsom, Morley, Morley, Morley, Morley, Morley, Morley, Peška, Plumb, Richard R. Hillis, Richardson, Rosalind C. King, Sandal, Simons, Sonder, Sperner, Tan, Tingay, Tingay, Tingay, Tingay, Tingay, Tingay, Tingay, Townend, Van Viet, Yale, Yale, Yassir, Zhang, Zoback   +73 more
core   +2 more sources

Numerical investigation on the influence of mesoscopic deformation on contact area and hydraulic aperture to fracture seepage

Deep Underground Science and Engineering, EarlyView.
Fluid flow through a single fracture is commonly described by the cubic law. However, deviations from this model are expected because natural fracture surfaces are rough and in contact with each other in discrete regions. In this study, the interactions between fracture closure, contact area, and hydraulic characterization of mesoscopic‐scale rough ...
Chenghao Han, Yuanlin Bai, Weijie Zhang, Jicheng Zhang, Hongfa Ma, Weiye Li   +5 more
wiley   +1 more source

BONINITES THROUGH TIME AND SPACE: PETROGENESIS AND GEODYNAMIC SETTINGS

Геодинамика и тектонофизика, 2016
The article provides an overview of boninitic magmatism occurrences in space and time and shows that the boninite rock series were generated through the entire geological history of the Earth.
A. A. Shchipansky
doaj   +1 more source

Habitable Planets: Interior Dynamics and Long-Term Evolution [PDF]

, 2017
Here, the state of our knowledge regarding the interior dynamics and evolution of habitable terrestrial planets including Earth and super-Earths is reviewed, and illustrated using state-of-the-art numerical models.
Ammann, Michael M., Brodholt, John P., Dobson, David P., Tackley, Paul J., Valencia, Diana   +4 more
core  

Tectonic significance of changes in post-subduction Pliocene-Quaternary magmatism in the south east part of the Carpathian-Pannonian Region [PDF]

, 2010
The south-eastern part of the Carpathian–Pannonian region records the cessation of convergence between the European platform/Moesia and the Tisza–Dacia microplate.
Alexandru Szakács, Bada, Balla, Behrmann, Bertotti, Burov, Chalot-Prat, Ciulavu, Cloetingh, Cloetingh, Csontos, Defant, Demetrescu, Demetrescu, Downes, Duggen, Dérerova, Embey-Isztin, Embey-Isztin, Faccenna, Faccenna, Fielitz, Fodor, Fuchs, Gméling, Gröger, Gvirtzman, Gîrbacea, Gîrbacea, Harangi, Harangi, Harangi, Harangi, Hauser, Heidbach, Hilary Downes, Horváth, Horváth, Houseman, Ioan Seghedi, Ismail-Zadeh, Ivan, Jarosinski, Knapp, Konečný, Krézsek, Leever, Linzer, Liviu Maţenco, Lustrino, Martin, Mason, Mason, Mason, Maţenco, Maţenco, Maţenco, Mo, Morley, Negrete-Aranda, Nemčok, Nemčok, Oncescu, Oncescu, Pallares, Panaiotu, Paul R.D. Mason, Peccerillo, Peccerillo, Pharaoh, Pinter, Plašienka, Popa, Pécskay, Pécskay, Rosenbaum, Royden, Royden, Roşu, Russo, Sacks, Sanders, Schmid, Schott, Seghedi, Seghedi, Seghedi, Seghedi, Seghedi, Seghedi, Seghedi, Seghedi, Sperner, Szakács, Szakács, Szakács, Szakács, Szakács, Săndulescu, Săndulescu, Tari, Tari, Turner, Tărăpoancă, Ustaszewski, Vaselli, Vasiliev, Vinkler, Wenzel, Wortel, Xiao, Ziegler, Zoltán Pécskay   +112 more
core   +2 more sources

Study on fracture parameter calibration and failure characteristics of rock with hole and crack

Deep Underground Science and Engineering, EarlyView.
The SIF and plastic zone equations for a single hole and crack have been derived. The model's failure state leads to the identification of four types of cracks. The plastic zone increases with increased brittleness and decreased crack length. Abstract Cracks within the surrounding rock of roadways significantly affect their stability and failure ...
Shaochi Peng, Wensong Wang
wiley   +1 more source

Thermal History of the Earth: On the Importance of Surface Processes and the Size of Tectonic Plates

Geochemistry, Geophysics, Geosystems, 2020
Geochemical constraints on mantle temperature indicate a regular decrease by around 250 K since 3 Ga. However, models of Earth's cooling that rely on scaling laws for thermal convection without strong plates are facing a thermal runaway backwards in time,
C. Grigné, M. Combes
doaj   +1 more source