Fault breccia of the Keystone Thrust, Red Rock Canyon National Conservation Area, Nevada.
Fault breccia (/ˈbrɛtʃiə/ or /ˈbrɛʃiə/; Italian for "breach"), or tectonic breccia, is a breccia (a rock type consisting of angular clasts) that was formed by tectonic forces.
Fault breccia is a tectonite formed by localized zone of brittle deformation (a fault zone) in a rock. Brecciation in fault zones influences fault zone hydrogeology in its interaction with groundwater and petroleum deposits.
Faultbreccia ( /ˈbrɛtʃiə/ or /ˈbrɛʃiə/; Italian for "breach"), or tectonic breccia, is a breccia (a rock type consisting of angular clasts) that was...
"rubble". A breccia may have a variety of different origins, as indicated by the named types including sedimentary breccia, fault or tectonic breccia, igneous...
before lithification. Cataclastic rocks are associated with fault zones and impact event breccias. Various classification schemes have been proposed for the...
from the two sides of the fault moving along each other results in grain size reduction and fragmentation. First, a faultbreccia will form with more fragmental...
formed through faulting or fracturing in the upper crust. Cataclasites are distinguished from fault gouge, which is incohesive, and faultbreccia, which contains...
history of movement with the development of faultbreccia, mylonite and pseudotachylite, indicating faulting at a wide range of crustal levels. Despite...
crackle breccia must not have experienced more than 10° average rotation. Kentucky Geological Survey - crackle breccia Mort, K. (2008). "Quantifying fault breccia...
shallowest depths, a fault zone will be filled with various kinds of unconsolidated cataclastic rock, such as fault gouge or faultbreccia. At greater depths...
Qomolangma Detachment is badly deformed. A 5–40 cm (2.0–15.7 in) thick faultbreccia separates it from the overlying Qomolangma Formation. The remainder...
zone: uncohesive fault rocks. Examples being fault gouge, faultbreccia, and foliated gouge. cohesive fault rocks like crush breccias and cataclasites...
The Alpine Fault is a geological fault that runs almost the entire length of New Zealand's South Island, being about 600 km (370 mi). long, and forms...
are the deep crustal counterparts to cataclastic brittle faults that create faultbreccias. Blastomylonites are coarse grained, often sugary in appearance...
limestone and white calcite, quarried near Aubert-Moulis in France. The faultbreccia from which it is extracted was formed at the end of the Cretaceous period...
created high-relief circular cuestas. Its center consists of a siliceous breccia covering an area that is at least 30 kilometres (19 mi) in diameter. Exposed...
cavities such as cracks, veins, fractures, breccias, and stockworks associated with steeply dipping fault systems. There are three major subtypes of vein...
other, cavities were created, partly filled with broken rock (faultbreccia and fault gouge). Hydrothermal circulation of sea water at temperatures of...
colluvium. Thick sequences of sedimentary (colluvial) breccias are generally formed next to fault scarps in grabens. In the field, it may at times be difficult...
distorted the picture; the distribution of the breccia has been compressed and skewed by west-to-east thrust faults across the area. Insufficient detail does...
mainly of coarse-grained conglomerate and breccia sediments, which were deposited adjacent to active faults during rapid uplift and consequent erosion...
iron(II) has not been transported away during the fault release. The fault has also produced a faultbreccia culminating in downstream accretion with large...
lava flows and tuffs. The youngest part of this unit is a sedimentary breccia, conglomerate, sandstone, and a siltstone. The earliest deposits of the...
andesitic epiclastic volcanic breccias. The Stanton Ranch Member consists of andesitic flows, flow breccias, and tuff breccias. The Devil's Peak Member consists...
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