Academic literature on the topic 'Lithostatic pressure'

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Journal articles on the topic "Lithostatic pressure"

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Raimbourg, Hugues, and Gaku Kimura. "Non-lithostatic pressure in subduction zones." Earth and Planetary Science Letters 274, no. 3-4 (2008): 414–22. http://dx.doi.org/10.1016/j.epsl.2008.07.037.

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Tajčmanová, Lucie, Paola Manzotti, and Matteo Alvaro. "Under Pressure: High-Pressure Metamorphism in the Alps." Elements 17, no. 1 (2021): 17–22. http://dx.doi.org/10.2138/gselements.17.1.17.

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The mechanisms attending the burial of crustal material and its exhumation before and during the Alpine orogeny are controversial. New mechanical models propose local pressure perturbations deviating from lithostatic pressure as a possible mechanism for creating (ultra-)high-pressure rocks in the Alps. These models challenge the assumption that metamorphic pressure can be used as a measure of depth, in this case implying deep subduction of metamorphic rocks beneath the Alpine orogen. We summarize petro-logical, geochronological and structural data to assess two fundamentally distinct mechanism
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Moulas, Evangelos, Stefan M. Schmalholz, Yury Podladchikov, Lucie Tajčmanová, Dimitrios Kostopoulos, and Lukas Baumgartner. "Relation between mean stress, thermodynamic, and lithostatic pressure." Journal of Metamorphic Geology 37, no. 1 (2018): 1–14. http://dx.doi.org/10.1111/jmg.12446.

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Tajčmanová, L. "Deviations from lithostatic pressure during metamorphism: fact or fiction?" Journal of Metamorphic Geology 33, no. 8 (2015): 783–84. http://dx.doi.org/10.1111/jmg.12152.

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Zencher, Francesca, Maurizio Bonafede, and Ragnar Stefansson. "Near-lithostatic pore pressure at seismogenic depths: a thermoporoelastic model." Geophysical Journal International 166, no. 3 (2006): 1318–34. http://dx.doi.org/10.1111/j.1365-246x.2006.03069.x.

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Sibson, Richard H. "Fault-valve behavior and the hydrostatic-lithostatic fluid pressure interface." Earth-Science Reviews 32, no. 1-2 (1992): 141–44. http://dx.doi.org/10.1016/0012-8252(92)90019-p.

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Polyansky, O. P., I. I. Likhanov, A. V. Babichev, P. S. Kozlov, S. V. Zinoviev, and V. G. Sverdlova. "Fault Tectonites of the Yenisei Shear Zone (Yenisei Ridge): Evidence and Thermomechanical Numerical Model of Generation of Tectonic Overpressure." Петрология 32, no. 1 (2024): 19–45. http://dx.doi.org/10.31857/s0869590324010036.

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Based on the proposed numerical model of the stress-strain state of polymineral rocks, which describes the formation of blastomylonites in the Yenisei Regional Shear Zone (PRSZ) in the Yenisei Ridge, the possibility of local tectonic overpressure exceeding the lithostatic pressure in rocks subjected to shear deformations is shown. For tectonites of the southern (Angara-Kan block) and northern (Isakovka terrane and Garevka complex) segments of the PRSZ, estimates of the maximum overpressure were obtained from 2–3 to 4–5 kbar, which range from 25 to 50% of the lithostatic pressure. It is shown t
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Kidder, S., J. P. Avouac, and Y. C. Chan. "Application of titanium-in-quartz thermobarometry to greenschist facies veins and recrystallized quartzites in the Hsüehshan range, Taiwan." Solid Earth Discussions 4, no. 1 (2012): 663–706. http://dx.doi.org/10.5194/sed-4-663-2012.

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Abstract. The accuracy, reliability and best practices of Ti-in-quartz thermobarometry ("TitaniQ") in greenschist facies rocks have not been established. To address these issues we measured Ti concentrations in rutile-bearing samples of moderately deformed, partially recrystallized quartzite and vein quartz from Taiwan's Hsüehshan range. The spread of Ti concentrations of recrystallized grains in quartzite correlates with recrystallized grain size. Recrystallized quartz (grain size ~300 μm) that formed during early deformation within the biotite stability field shows a marked increase in inter
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Ujiie, Kohtaro, Hanae Saishu, Ake Fagereng, et al. "An Explanation of Episodic Tremor and Slow Slip Constrained by Crack‐Seal Veins and Viscous Shear in Subduction Mélange." Geophysical Research Letters 45 (May 29, 2018): 5371–79. https://doi.org/10.1029/2018GL078374.

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Episodic tremor and slow slip (ETS) occurs in the transition zone between the locked seismogenic zone and the deeper, stably sliding zone. Actual mechanisms of ETS are enigmatic, caused by lack of geological observations and limited spatial resolution of geophysical information from the ETS source. We report that quartz‐filled, crack‐seal shear and extension veins in subduction mélange record repeated low‐angle thrust‐sense frictional sliding and tensile fracturing at near‐lithostatic fluid pressures. Crack‐seal veins were coeval with viscous shear zones that accommodated deformation by
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Jourdon, Anthony, and Dave A. May. "An efficient partial-differential-equation-based method to compute pressure boundary conditions in regional geodynamic models." Solid Earth 13, no. 6 (2022): 1107–25. http://dx.doi.org/10.5194/se-13-1107-2022.

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Abstract. Modelling the pressure in the Earth's interior is a common problem in Earth sciences. In this study we propose a method based on the conservation of the momentum of a fluid by using a hydrostatic scenario or a uniformly moving fluid to approximate the pressure. This results in a partial differential equation (PDE) that can be solved using classical numerical methods. In hydrostatic cases, the computed pressure is the lithostatic pressure. In non-hydrostatic cases, we show that this PDE-based approach better approximates the total pressure than the classical 1D depth-integrated approa
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Dissertations / Theses on the topic "Lithostatic pressure"

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Soeller, Christopher Philip. "Investigation of the Hydromechanical Effects of Lithostatic Unloading in Open-pit Mines." Thesis, Boston College, 2016. http://hdl.handle.net/2345/bc-ir:107281.

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Thesis advisor: Alan Kafka<br>The stability of open-pit mine walls and other geotechnical infrastructure is a function of geometry, material properties and groundwater conditions (pore pressure distribution). A portion of failures are attributed to the effect of pore water pressures within the mine wall slopes. The objective of this research was to investigate the interaction between the increments/decrements of stresses that occur during the lithostatic unloading/excavation of the pit and the increments/decrements of pore water pressures. This interaction can be described by the theory of lin
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Book chapters on the topic "Lithostatic pressure"

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"lithostatic pressure." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_121818.

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Hoiland, C., J. Hourigan, and E. Miller. "Evidence for large departures from lithostatic pressure during Late Cretaceous metamorphism in the northern Snake Range metamorphic core complex, Nevada." In Tectonic Evolution of the Sevier-Laramide Hinterland, Thrust Belt, and Foreland, and Postorogenic Slab Rollback (180–20 Ma). Geological Society of America, 2022. http://dx.doi.org/10.1130/2021.2555(07).

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ABSTRACT The highest-grade Barrovian-type metamorphic rocks of the North American Cordillera exposed today are Late Cretaceous in age and found within an orogen-parallel belt of metamorphic core complexes for which the tectonic histories remain controversial. Thermobarometric studies indicate that many of these Late Cretaceous metamorphic assemblages formed at pressures of &amp;gt;8 kbar, conventionally interpreted as &amp;gt;30 km depth by assuming lithostatic conditions. However, in the northern Basin and Range Province, detailed structural reconstructions and a growing body of contradictory
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Zentilli, Marcos, Milton C. Graves, Ryan Mathur, Jacob J. Hanley, Larry M. Heaman, and Ricardo Boric. "Locating the “Missing Half” of the Giant Chuquicamata Porphyry Copper Deposit, Chile." In Tectonomagmatic Influences on Metallogeny and Hydrothermal Ore Deposits: A Tribute to Jeremy P. Richards (Volume I). Society of Economic Geologists, 2021. http://dx.doi.org/10.5382/sp.24.05.

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Abstract The supergiant Chuquicamata porphyry Cu-Mo deposit in northern Chile is truncated on its west side by a N-S-trending regional fault (the West fault), juxtaposing its ore to a relatively barren granodiorite (Fortuna Igneous Complex). There has been much speculation about the fate of, and extensive exploration for, the “missing half” of the deposit. It has been proposed that the west side of the fault hides the ore at depth, or that it was uplifted and the ore eroded; however, regional geologic mapping suggests that the West fault had a postore left-lateral strike-slip displacement of c
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Conference papers on the topic "Lithostatic pressure"

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Reyes, Francisco, Victor Guevara, Dominik Vlaha, et al. "RECONSTRUCTING THERMOBAROMETRIC GRADIENTS IN THE NORTHWESTERN TETHYAN HIMALAYA: TESTING THE LITHOSTATIC PRESSURE PARADIGM." In 59th Annual GSA Northeastern Section Meeting - 2024. Geological Society of America, 2024. http://dx.doi.org/10.1130/abs/2024ne-397336.

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Martyshko, P., A. Tsidaev, and V. Kolmogorova. "A Method for Density Models Construction Using Gravity, Seismic Data and Lithostatic Pressure Distribution." In Saint Petersburg 2020. European Association of Geoscientists & Engineers, 2020. http://dx.doi.org/10.3997/2214-4609.202053242.

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Hoiland, Carl W., Elizabeth L. Miller, Matthew A. Coble, Jeremy Hourigan, and Marty Grove. "POSSIBLE EVIDENCE FOR LARGE DEPARTURES FROM LITHOSTATIC PRESSURE DURING CRETACEOUS METAMORPHISM IN THE NORTHERN SNAKE RANGE METAMORPHIC CORE COMPLEX (MCC), NEVADA." In 115th Annual GSA Cordilleran Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019cd-329840.

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Vlaha, Dominik, Francisco Reyes, Andrew Zuza, et al. "WAS THE BASAL TETHYAN HIMALAYA DEEPLY BURIED? INSIGHTS FROM THE HIMACHAL HIMALAYA, NW INDIA, IN INVESTIGATING NON-LITHOSTATIC PRESSURE VERSUS PRE-HIMALAYAN METAMORPHISM." In GSA Connects 2024 Meeting in Anaheim, California. Geological Society of America, 2024. http://dx.doi.org/10.1130/abs/2024am-401003.

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Kindi, I. Al, M. Al Bahluli, P. Agrawal, B. Al Alawiya, and G. Sulaimi. "Surface and Subsurface Development Strategy of a Carbonate Stringer with Halite Production in Southern Oman." In International Petroleum Technology Conference. IPTC, 2024. http://dx.doi.org/10.2523/iptc-24371-ea.

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Abstract Stringer reservoirs in south of Oman are carbonate bodies encapsulated in thick zones of Ara salt. The pressure in these reservoirs is varying from lithostatic to hydrostatic regime. Halite production in field HL-3A has been a major challenge throughout the years of production; hence, a thorough investigation was needed to tackle the issue and come up with a strategy to decrease salt migration to the wellbore. Fluid sampling and pulsed neutron logging (PNX) were done to study salt content and free water fraction variations over the well production timeline. Additionally, well testing
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Kårstad, Eirik, Pramit Basu, Michal Kepinski, and Wojciech Chrzanowski. "3D Modelling Approach To Investigate Zechstein Stress Transition Zone – Case Study from Fore-Sudetic Monocline (Poland)." In International Geomechanics Symposium. ARMA, 2022. http://dx.doi.org/10.56952/igs-2022-186.

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Abstract Geomechanics is the study of how subsurface rocks deform or fail in response to changes in stress, pressure and temperature. Therefore, geomechanics is an important input for optimal exploration and development of hydrocarbon reservoirs. The Zechstein formations exhibit different rock deformation behaviours due to varying sequences of evaporites that cause significant drilling challenges, increasing drilling time and associated costs. Commonly used 1D analytical geomechanical models have been inadequate for explaining the drilling experiences in the Zechstein formation. We therefore e
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Salvatierra, Julio C. Villarroel, Larry W. Lake, and David DiCarlo. "Accounting for Exterior Flow Using the Modified Logistic Growth Model for Unconventional Geopressured Shale Gas Reservoirs." In SPE Annual Technical Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/214872-ms.

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Abstract The scope of this work is to assess the flow beyond boundary-dominated flow, defining the existence of a third flow regime (after transient linear flow and boundary-dominated flow) that we call "exterior flow" for further use in decline curve analysis in unconventional reservoirs. Thus, exterior flow is defined as the linear flow of gas from the non-stimulated matrix feeding into the edges of the depleted stimulated reservoir volume (SRV), at late times, far away (predicted by Lee 2021; and anticipated by Marder et al. 2021). Sometimes referred as "flow beyond the tips" or post-SRV fl
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Agrawal, Pankaj, Asaad Busaidi, Alyaqadhan Al Hinai, Zahir Abri, Aiman Quraini, and Abdullah Hadhrami. "A Life-Cycle Comprehensive and Evolving Asphaltene Management Strategy of Sour MGI Oil Fields of South Oman." In ADIPEC. SPE, 2023. http://dx.doi.org/10.2118/216464-ms.

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Abstract The current paper provides actual learnings and new-technology application based evolving and holistic asphaltene management strategy for reservoirs which are under depletion or gas-injection; and are either currently facing or are potentially asphaltene-prone in future. The paper covers a life-cycle approach option both short- and longer-term potential asphaltene mitigation or solutions. South-Oman stringer reservoirs are carbonate bodies encapsulated in thick salt, reservoir pressure in these stringers vary from lithostatic to hydrostatic regime. Asphaltene Screening was done as par
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Porlles, J. W., O. S. Tomomewo, S. A. Afari, E. Gyimah, A. Laalam, and O. Bakelli. "An Experimental Study of the Effect of Long-Term Time-Dependent Proppant Behavior Under HP-HT Reservoir Conditions." In SPE Annual Technical Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/215120-ms.

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Abstract The long-term sustainability of fracture conductivity in a geothermal system using proppant will be affected by crushing pressure and geothermal fluids. Previous experiments have shown that for short-term periods, field testing results have indicated some performance improvements and a few experiments for long-term periods have shown that different types of proppants and the crushing test results suggest probable geomechanical degradation of the proppants under the test conditions. So, some proppants, such as ceramics and kryptospheres, showed a significant degree of mechanical streng
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Kindi, O., S. Al Riyami, S. Hinai, et al. "Production Enhancement of Heavy Oil Reservoir at South of Sultanate of Oman Salt Basin with Implementation of Design and Data Diagnostic Cycle of Hydraulic Fracturing Campaign." In SPE Annual Technical Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/214781-ms.

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Abstract At South of the Sultanate of Oman Salt Basin province, with multiple oilfield cluster such as Asset M, Asset N, and Asset B, the production enhancement method with hydraulic fracturing stimulation technique has grown from just merely 5 treatments on trial basis till 2017 to be favorable completion and production enhancement method with over 20 fracture treatments annually in 2020 onwards. The basin is predominantly oil reservoir came from Cambro-Ordovician and Carboniforous-Permian era layers, which consist of various sandstone reservoir such as Reservoir H family, Reservoir G family
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