[1] We present a unified analysis of physical properties of cataclastic fault rocks collected from surface exposures of the central Alpine Fault at Gaunt Creek and Waikukupa River, New Zealand. Friction experiments on fault gouge and intact samples of cataclasite were conducted at 30–33 MPa effective normal stress (sn′) using a double-direct shear configuration and controlled pore fluid pressur...

Many of the definitions given below were adopted by the SCMR without difficulty; others gave rise to considerable debate. Problems arose for a variety of reasons, namely: the variable usage of terms across the geological community (e.g. gneiss and schist); terms such as slate and cleavage proved difficult because there are no similar terms in many non-English speaking countries; equally, the di...

Abstract. In the Western Alps, Penninic frontal thrust (PFT) is main crustal-scale tectonic structure of belt. This transported high-pressure metamorphosed internal units over non-metamorphosed European margin during Oligocene (34–29 Ma). Following propagation compression toward foreland, PFT was later reactivated as an extensional detachment associated with development High Durance fault syste...

The material properties and distribution of faults above the seismogenic zone promote or inhibit earthquake rupture propagation. We document depths mechanics fault slip along seismically active Hurricane fault, UT, with scanning transmission electron microscopy hematite (U-Th)/He thermochronometry. Hematite occurs as mm-scale, striated patches on a >10 m2 thin, mirror-like silica surface. textu...

We carried out geochemical and mineralogical analyses on fault-zone rocks from the Anko section of the Median Tectonic Line in Nagano Prefecture, Japan, to investigate coseismic physicochemical processes in the fault zone. The latest fault zone in the Anko section contains cataclasite, fault breccia, and fault gouge of granitic composition, and brecciated basic schist. Protoliths of the graniti...

A retrograde sequence of fluid-controlled, lowtemperature mineral reactions has been preserved along an east-west striking, dextral-oblique-slip fault in the uplifted Rhine Graben shoulder. This fault (the Schauenburg Fault, near Heidelberg), juxtaposes Permian rhyolite against Carboniferous (Variscan) granite and shows synor post-rift displacement of the north–south trending, eastern boundary ...

Hypervelocity impact cratering is an important geologic process but the rarity of large terrestrial craters on Earth and limited technical options to study processes in laboratory hinders our understanding large-scale processes. Drill core recovered from peak ring Chicxulub crater during International Ocean Discovery Program (IODP)/International Continental scientific Drilling (ICDP) Expedition...