Deformation thermometry based on quartz c-axis fabrics and recrystallization microstructures: A review

RD Law - Journal of structural Geology, 2014 - Elsevier
For quartz-rich tectonites two types of deformation thermometer are currently commonly
employed: 1) The quartz c-axis fabric opening-angle thermometer that provides an estimate …

Flow laws and fabric transitions in wet quartzite

L Tokle, G Hirth, WM Behr - Earth and Planetary Science Letters, 2019 - Elsevier
We investigated quartzite flow laws based on data from 21 different experimental studies on
samples deformed with added water at temperatures from 700 to 1200° C. Two clear trends …

[HTML][HTML] The effect of muscovite on the microstructural evolution and rheology of quartzite in general shear

L Tokle, G Hirth, H Stünitz - Journal of Structural Geology, 2023 - Elsevier
We conducted general shear experiments on synthetic mixtures of quartz and muscovite
aggregates at 800° C and 1.5 GPa with 0.1 wt.% H 2 O added in the Griggs apparatus to …

[PDF][PDF] 2.18 constitutive equations, rheological behavior, and viscosity of rocks

L Hansen, DL Kohlstedt - Treatise on Geophysics,, 2015 - ldeo.columbia.edu
The rheological behavior of mantle rocks determines the mechanical response of
lithospheric plates and the nature of convective flow in the deeper mantle. Geodynamic …

3D numerical simulation-based targeting of skarn type mineralization within the Xuancheng-Magushan orefield, middle-lower Yangtze metallogenic belt, China

X Hu, X Li, F Yuan, SM Jowitt, A Ord, R Ye… - …, 2020 - pubs.geoscienceworld.org
Recent exploration has identified a series of Cu-Mo skarn deposits within the Xuancheng-
Magushan orefield. The orefield forms part of the Nanling-Xuancheng mining district, which …

Rheology of two-phase systems: A microphysical and observational approach

JP Platt - Journal of Structural Geology, 2015 - Elsevier
Ductile shear zones commonly contain distinctive bands of high strain rock characterized by
intimately mixed fine-grained two-phase or polyphase material. These ultramylonite bands …

The deep structure and rheology of a plate boundary-scale shear zone: Constraints from an exhumed Caledonian shear zone, NW Scotland

ADJ Lusk, JP Platt - Lithosphere, 2020 - pubs.geoscienceworld.org
Below the seismogenic zone, faults are expressed as zones of distributed ductile strain in
which minerals deform chiefly by crystal plastic and diffusional processes. We present a …

Temperature, deformation, and mass transfer in a hot orogen: Insights from thermokinematic forward models for far western Nepal

M Braza, N McQuarrie, DM Robinson, LE Webb - Tectonics, 2023 - Wiley Online Library
Exhumation and cooling pathways of mid‐crustal metamorphic rocks in the western Nepal
Himalaya can be replicated by fold‐thrust belt structures with displacement localized along …

The influence of stress history on the grain size and microstructure of experimentally deformed quartzite

S Kidder, G Hirth, JP Avouac, W Behr - Journal of Structural Geology, 2016 - Elsevier
Deformation of middle crustal shear zones likely varies with time as a result of the stress
build-up and release associated with earthquakes and post-seismic deformation, but the …

Water redistribution in experimentally deformed natural milky quartz single crystals—Implications for H2O‐weakening processes

H Stünitz, A Thust, R Heilbronner… - Journal of …, 2017 - Wiley Online Library
Natural quartz single crystals were experimentally deformed in two orientations:(1)⊥ to one
prism plane and (2) in O+ orientation at 900 and 1000° C, 1.0 and 1.5 GPa, and strain rates …