نتایج جستجو برای: diapirism

تعداد نتایج: 105  

Journal: :Geophysical Journal International 2021

SUMMARY We investigate numerically some thermomechanical conditions for the development of crustal scale diapirism and convection in a heterogeneous continental crust independently from action regional tectonics. Here, we consider hot crust, with unmolten partially molten domains specific temperature strain-rate dependent power-law rheologies. take advantage volume fluid (VOF) method to capture...

Journal: :Basin Research 2021

Reprocessed, regional, 2D seismic reflection profiles, 3D volumes and well data (exploration shallow boreholes), combined with structural restorations 1D backstripping were used to study the post-salt evolution of Nordkapp Basin in Barents Sea. The took place above a pre-salt basement basin configuration affected by multiple rift events that influenced depositional facies thickness Pennsylvania...

Journal: :Basin Research 2023

The formation and structural evolution of complex intracontinental basins, like the North German Basin, mark fundamental earth processes. Understanding these is not only essential to basic research but also socioeconomic importance because multitude resources, potential hazards, subsurface use capability in such basins. As part Central European Basin System, major subsidence differentiation aff...

Journal: :International Geology Review 2022

Cerro El Toro, a Pliocene scoria cone that carried abundant lower crust xenoliths to the surface, is located in Mesa Central (MC), Mexico, where mafic alkalic intra-plate volcanism has occurred since early Miocene (end of Sierra Madre Occidental volcanism). Early studies Toro showed feldspathic granulite equilibrated at P = 0.9–1.4 GPa and T 900−1100°C under anhydrous conditions (ternary feldsp...

Journal: :Ore Geology Reviews 2021

Neoproterozoic banded iron formations (BIF) and ironstones occur in the Urucum mining district (Pantanal, Brazil). Microbially mediated formation as microbialites has been proposed for these deposits. This study aims to provide a high resolution characterization of micro-textural features, mineral assemblage distribution gather evidence two microbial ore forming systems: Fe- Mn-oxidizing metabo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی معدن 1387

تنگه هرمز (منطقه مورد مطالعه) در حد واسط کمربند کوهزایی زاگرس و عمان واقع شده است. با توجه به اهمیت اقتصادی منطقه از دیدگاه حضور ذخایر هیدروکربنی، منطقه مذکور تحت مطالعات اکتشافی از جمله برداشت لرزه نگاری سه بعدی قرار گرفته است. در این رساله تلاش گردید با استفاده از تفسیر داده های لرزه نگاری و نتایج چاه ها ضمن بررسی ساختارهای موجود در منطقه ، مدل تکتونیکی برای آنها ارایه شود. در این راستا، از ر...

2013
P. Brož E. Hauber

Introduction: Mars was volcanically active throughout most, if not all, of its history [e.g., 1-4], and volcanism played a significant role in the formation of its surface. Another factor modifying the Martian surface is water, both in liquid and frozen state, and at and beneath the surface [e.g., 5]. Interactions of magma with water and/or ice should be common on Mars, therefore. On Earth, suc...

Journal: :Bulletin De La Societe Geologique De France 2023

The Pyrenees are the result of structural inversion a rift general direction N110E, established at articulation European and Iberian plates. This was created by left-lateral transtension with severe crustal thinning during latest Early Cretaceous Mid-Cretaceous. Its inversion, which led to uplifting Pyrenean chain, took place gradually, transpression from east west, Late followed an Eocene coll...

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