نتایج جستجو برای: decollement

تعداد نتایج: 53  

Journal: :Solid Earth 2021

Abstract. Foreland fold-and-thrust belts (FTBs) record long-lived tectono-sedimentary activity, from passive margin sedimentation, flexuring, and further evolution into wedge accretion ahead of an advancing orogen. Therefore, dating fault activity is fundamental for plate movement reconstruction, resource exploration, earthquake hazard assessment. Here, we report U–Pb ages syn-tectonic calcite ...

Journal: :Frontiers in Earth Science 2021

The 3 February 2020 M S 5.1 Qingbaijiang earthquake, southwestern China, is the closest recorded ? 5.0 event to downtown Chengdu City date, with an epicentral distance of only 38 km. Here we analyze seismic data from Sichuan and regional networks, employ a multi-stage location method relocate earthquakes that have occurred along central northern segments Longquanshan fault zone since 2009, incl...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پایه 1387

چکیده ندارد.

Journal: :Frontiers in Earth Science 2021

Dome-building volcanoes often develop by intrusion and extrusion, recurrent destabilization sector collapses, renewed volcanic growth inside the collapse embayment. However, details of structural architecture affiliated with activity influences regional structures remain poorly understood. Here, we analyze recent Shiveluch volcano, Kamchatka Peninsula, characterized repeated episodes lava dome ...

ژورنال: علوم زمین 2015
بهنام اویسی مجید باقرنژاد محمد رضا قاسمی

در پانه‌های (wedge) چین و راندگی که به‌صورت نازک‌پوست دگرریخت می‌شوند چگونگی دگرریختی ارتباط نزدیکی با مقاومت در برابر لغزش در راستای سطح‌های فَراکَنِش  (decollement) و حضور طبقات کم ژرفا و ژرف فراکنش دارد. در گستره چین‌خورده میانه- ماه‌نشان، طبقات شکل‌پذیر در ترازهای پایینی (سازند سرخ بالایی) نقش به‌سزایی در هندسه و جنبش‌شناسی دگرریختی گستره بازی می‌کنند. به‌منظور شناسایی هندسه چین‌خوردگی، تفکیک ...

2006
Thomas L. Wright Fred W. Klein

The shallow part of Kilauea’s magma system is conceptually well-understood. Long-period and short-period (brittle-failure) earthquake swarms outline a near-vertical magma transport path beneath Kilauea’s summit to 20 km depth. A gravity high centered above the magma transport path demonstrates that Kilauea’s shallow magma system, established early in the volcano’s history, has remained fixed in...

2010
R. A. HARRIS

Integration of geological and geophysical data from the active Banda orogen reveals important variations in structural style with time that reconcile rival hypotheses for the tectonic evolution of the Banda arc. These variations indicate the temporal distribution of strain in the collision zone by vertical and horizontal structural restorations of the collision through time. In the western part...

2015
Michael S. Pollhammer Dominik Duscher Zeshaan N. Maan Manfred Schmidt Georg M. Huemer

Manfred Schmidt, MD Georg M. Huemer, MD, MSc, MBA Section of Plastic and Reconstructive Surgery Department of General Surgery Kepler University Hospital Linz, Austria maz—Microsurgical Training and Research Center Linz, Austria Sir: E soft-tissue defects of the upper extremity may present a challenge even for experienced surgeons. Free tissue transfer may be the best option to cover exposed ten...

2018
Wei Lin Michel Faure Patrick Monié Urs Schärer Liangsheng Zhang Yan Sun

In south China the Lushan massif forms a Jurassic through Early Triassic [e.g., Mattauer et al., 1985, topographic high of the South China Block south of the 1991; Okay et al., 1993; Hacker et al., 1996; Gilder et al., Qinling-Dabie belt. The Lushan massif consists of two main 1999]. The noah directed continental subduction of south lithotectonic units separated by a major tectonic ontact: a Ch...

2006
Paul Segall Emily K. Desmarais David Shelly Asta Miklius Peter Cervelli

Slow-slip events, or ‘silent earthquakes’, have recently been discovered in a number of subduction zones including the Nankai trough in Japan, Cascadia, and Guerrero in Mexico, but the depths of these events have been difficult to determine from surface deformation measurements. Although it is assumed that these silent earthquakes are located along the plate megathrust, this has not been proved...

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