نتایج جستجو برای: footwall

تعداد نتایج: 279  

Journal: :Tectonics 2022

Abstract Inversion of pre‐existing normal faults is a frequent phenomenon in orogenic belts. However, their impact on the evolution Cretaceous Eoalpine orogeny poorly studied, despite widespread presence Triassic and Jurassic faults. Our study area SW part Transdanubian Range (TR), which represents uppermost thick‐skinned nappe Alpine realm. The variable trend contractional structures within ha...

2010
Alexander C. Robinson An Yin Oscar M. Lovera

Article history: Received 25 May 2010 Received in revised form 6 October 2010 Accepted 9 October 2010 Available online 14 October 2010

2006
Cameron W. Wobus Kelin X. Whipple Kip V. Hodges

[1] The southern flanks of the central Nepalese Himalaya correspond to a sharp transition in landscape morphology and bedrock mineral cooling ages that suggests a change in rock uplift rate. This transition can be explained by either (1) accretion of footwall material to the hanging wall across a ramp in the décollement separating India from Eurasia, thereby enhancing rock uplift rates above th...

2003
K. Naidoo M. F. Handley

A gully is an excavation cut in the immediate footwall or hangingwall of the reef for the purpose of enabling the removal of rock from the face or providing access to the face for mining personnel or material1. The gully sidewalls and hangingwall often pose a serious stability problem in the gold and platinum mines in South Africa, since records of fatal rock-related injuries show that they are...

2015
Susan V. Roberts Douglas W. Burbank

In order to determine the pattern and timing of exhumation and uplift in the Teton Range, fission-track analysis of apatites has been applied to three sections encompassing ~ 2 km of vertical relief along the Teton escarpment. The resulting data provide new insights on the doming of the Precambrian-Cambrian unconformity and on the Teton exhumation/uplift history prior to the Miocene initiation ...

Journal: :Geochemistry Geophysics Geosystems 2022

Abstract The magnitude of earthquakes on continental normal faults rarely exceeds 7.0 Mw. However, because their vicinity to large population centers they can be highly destructive. Long recurrence time, relatively small deformations, and limited observations hinder our understanding the deformation patterns mechanisms controlling events. Here, this problem is addressed with 2D thermomechanical...

Journal: :Minerals 2022

Metal mines mined using the sublevel caving method often exhibit various environmental problems on ground surface. This can affect safety of production process in mining area. A numerical model Universal Distinct Element Code has been established to investigate deformation failure giving rise this underground mining. The calculations are combined with in-situ monitoring data collected over a pe...

Journal: :Journal Of Geophysical Research: Solid Earth 2022

We use 12 temporary and 9 permanent broadband seismometers that were operating for ∼400 days from October 2018 to November 2019 generate the first published earthquake catalog local magnitude function southern New Caledonia (SNC). Local hypocenters mostly have depths <20 km, but east of Hebrides-Vanuatu subduction zone they deepen >100 km. Our estimates ML 107 earthquakes in are consistently 1....

Journal: :Journal Of Geophysical Research: Earth Surface 2021

Landscape evolution models that invert topography for rock uplift can improve our understanding of both tectonic and geomorphic processes when properly constrained with data. Here we present a flexible, data-driven Bayesian approach to fluvial model parameters apply it case study, the uplifting footwall Corinth Rift, Greece. We transient river profiles up-flexed marine terraces resolve seven un...

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