Results 81 to 90 of about 86,494 (191)

Structural geometry and gold ores along the first outlined N–S dextral shear zone in the Egyptian Nubian Shield, East African orogenic belt: New insights from integrated remote sensing, gravity, magnetic and field studies

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources
This study outlines the newly identified N–S dextral shear zone within the Egyptian Nubian Shield. The N–S Shear Zone (600–590 Ma) is a significant north-trending geological feature in the Egyptian Nubian Shield, extending over 140 km in length and ...
Mohamed A. Abd El‑Wahed   +3 more
doaj   +1 more source

Thermal structure and exhumation history of the Lesser Himalaya in central Nepal [PDF]

open access: yes, 2004
The Lesser Himalaya (LH) consists of metasedimentary rocks that have been scrapped off from the underthrusting Indian crust and accreted to the mountain range over the last ~20 Myr. It now forms a significant fraction of the Himalayan collisional orogen.
Avouac, J. P.   +7 more
core   +1 more source

Flood magnitude-frequency and lithologic control on bedrock river incision in post-orogenic terrain [PDF]

open access: yes, 2006
Mixed bedrock-alluvial rivers - bedrock channels lined with a discontinuous alluvial cover - are key agents in the shaping of mountain belt topography by bedrock fluvial incision.
Annandale   +111 more
core   +1 more source

Deformation in Moffat Shale detachment zones in the western part of the Scottish Southern Uplands [PDF]

open access: yes, 2004
A study of the décollement zones in the Moffat Shale Group in the Ordovician Northern Belt of the Southern Uplands of Scotland reveals a progressive sequence of deformation and increased channelization of fluid flow.
Needham, D.T.
core   +1 more source

Emplacement of the Rocche Rosse rhyolite lava flow (Lipari, Aeolian Islands) [PDF]

open access: yes, 2018
The authors acknowledge Airbus Defence and Space for providing satellite imagery, financial support from Keele University and fieldwork grants from the Mineralogical Society of Great Britain and Ireland and the Volcanic and Magmatic Studies Group.
Bullock, Liam A   +2 more
core   +2 more sources

PAVLO STEFANOVICH VORONOV — OUTSTANDING POLAR GEOLOGIST (to the 100th anniversary of birth)

open access: yesГеологія і корисні копалини Світового океану, 2020
The article is dedicated to the outstanding geologist-polar explorer of the USSR, an outstanding naturalist, doctor of geological and mineralogical sciences, Professor Pavel Voronov in the light of 100th anniversary of his birth celebration.
N.N. Shatalov
doaj   +1 more source

Comparison of Seismic Site Factor Models Based on Equivalent Linear and Nonlinear Analyses and Correction Factors for Updating Equivalent Linear Results for Charleston, South Carolina

open access: yesGeosciences
In practice, site-specific one-dimensional (1D) seismic site response analyses are conducted to compute surface acceleration time histories considering shear wave velocity profile, modulus reduction, damping, and site-specific ground motions.
Nadarajah Ravichandran   +4 more
doaj   +1 more source

Evidence of micro-continent entrainment during crustal accretion [PDF]

open access: yes, 2015
Peer ...
Bodin, T.   +7 more
core   +1 more source

Effect of filling material on dynamic response and energy dissipation in sandstone with double weak interlayers

open access: yesResults in Engineering
With the extension of China's transportation infrastructure into the complex geological areas in the west, the presence of numerous weak interlayers in the geology has posed significant challenges to the construction of tunnel transportation.
Yanzhe Li   +3 more
doaj   +1 more source

Progress and development of volume stimulation techniques

open access: yesPetroleum Exploration and Development, 2018
Based on the theoretical study and field application of volume stimulation in horizontal wells over the past 10 years, the core connotation of volume stimulation was further interpreted.
Yun XU   +7 more
doaj   +1 more source

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