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Seismic soil classification of Italy based on surface geology and shear-wave velocity measurements

Soil Dynamics and Earthquake Engineering, 2019
Abstract During an earthquake the seismic wave amplification related to local site conditions can have a significant impact on the ground motion. In order to account for these local effects some proxies for the soil characteristics exist; e.g., the average shear-wave velocity of the upper 30 m ( V S , 30 ) , or the equivalent ...
Forte, Giovanni   +5 more
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Geology and timing of dextral strike-slip shear zones in Danmarkshavn, North-East Greenland Caledonides

Geological Magazine, 2006
The North-East Greenland eclogite province is divided into a western, central and eastern block by the sinistral Storstrømmen shear zone in the west and the dextral Germania Land deformation zone in the east. A family of steep, NNW-striking dextral mylonite zones in the Danmarkshavn area are geometrically and kinematically similar to the ductile ...
C. SARTINI-RIDEOUT   +2 more
openaire   +1 more source

Gently sloping shear zones in the Belomorian Mobile Belt: Geology, structure, and P–T parameters

Geotectonics, 2016
The Belomorian Mobile Belt (BMB) in northern Karelia mostly consists of gently sloping shear zones, whose gneisses and migmatized amphibolites and blastomylonites are typically thinly banded, with their banding consistently dipping north- and northeastward.
V. M. Kozlovskii   +7 more
openaire   +1 more source

A Site-Conditions Map for California Based on Geology and Shear-Wave Velocity

Bulletin of the Seismological Society of America, 2000
One simple way of accounting for site conditions in calculating seismic hazards is to use the shear-wave velocity in the shallow subsurface to classify materials. The average shear-wave velocity to 30 m ( V 30s) has been used to develop site categories that can be used for modifying a calculated ground motion to account for site conditions.
openaire   +1 more source

Geology of the shear-hosted Brookbank gold prospect in the Beardmore–Geraldton belt, Wabigoon subprovince, Ontario

Canadian Journal of Earth Sciences, 2007
The Beardmore–Geraldton belt consists of steeply dipping, intercalated panels of metavolcanic and metasedimentary rocks along the southern margin of the granite–greenstone Wabigoon subprovince in the Archean Superior Province, Ontario. It is an important past-producing gold belt that includes classic epigenetic iron-formation-hosted deposits near ...
Jerry C DeWolfe   +2 more
openaire   +1 more source

The 3D shear experiment over the Natih field in Oman. Reservoir geology, data acquisition and anisotropy analysis

Geophysical Prospecting, 1999
This paper describes a large‐scale reservoir characterization experiment carried out in Oman in 1991 which comprised the acquisition, processing and interpretation of a 28.4 km2 3D multicomponent seismic experiment over the Natih field. The objective of the survey was to obtain information on the fracture network present in the Natih carbonates from ...
null Potters   +4 more
openaire   +1 more source

Interpreting geology from geophysics in poly-deformed and mineralised terranes; the Otago Schist and the Hyde-Macraes Shear Zone

New Zealand Journal of Geology and Geophysics, 2019
ABSTRACTOre deposits are formed by a variety of processes, and mineralised host rocks possess unusual petrophysical properties in contrast to un-mineralised country rock.
Casey C. Blundell   +5 more
openaire   +1 more source

Geology of the Duncan Canal shear zone:Evidence for Early to Middle Jurassic deformation of the Alexander terrane, southeastern Alaska

Geological Society of America Bulletin, 1990
The Duncan Canal shear zone, central southeastern Alaska, disrupts and penetratively deforms Devonian, Pennsylvanian, and Upper Triassic strata of the lexander terrane. The deformation is interpreted to have occurred within a regime of right-lateral shear during Early or Middle Jurassic time.
WILLIAM C. MCCLELLAND, GEORGE E. GEHRELS
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Integrated structural geology and geophysical analysis of crustal-scale shear zones in the Gawler Craton, South Australia

2021
This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
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“Shearing Phenomena at High Pressures of Possible Importance for Geology.” Journal of Geology, Vol. XLIV, pp. 653–669, 1936. By P. W. Bridgman.

GEOPHYSICS, 1936
Contributions from Bridgman’s high‐pressure laboratory at Harvard are always of interest. In the present article he discusses flow, and the shearing stresses necessary to produce flow under high pressure for a wide variety of substances. Rigidity, or the resistance to shearing stress, is one of the fundamental constants of the seismologist, and ...
openaire   +1 more source

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