Abstract Determination of the youngest active domains in fault zones that are not overlain by Quaternary sedimentary cover is critical for evaluating recent activity, determining current local stress field, and mitigating impacts future earthquakes. Considering exhumation a zone, domain zone supposed to correspond activity at minimum depth buried fault, such most vulnerable area, which possesse...

Four metasedimentary zircon populations from different tectonometamorphic units of the Central and the Northern Schwarzwald (Variscan belt, SWGermany) were investigated using SEM, cathodoluminescence and SHRIMP dating. Despite partially strong modifications of primary internal morphologies during Variscan metamorphism at amphibolite (750 C, 0.4– 0.6 GPa) and granulite-facies conditions (950–1,0...

Resolving the timing of crustal processes and meteorite impact events is central to understanding the formation, evolution and habitability of planetary bodies. However, identifying multi-stage events from complex planetary materials is highly challenging at the length scales of current isotopic techniques. Here we show that accurate U-Pb isotopic analysis of nanoscale domains of baddeleyite ca...

A quartz-pyroxene rock interpreted as a banded iron formation (BIF) from the island of Akilia, southwest Greenland, contains (13)C-depleted graphite that has been claimed as evidence for the oldest (>3850 million years ago) life on Earth. Field relationships on Akilia document multiple intense deformation events that have resulted in parallel transposition of Early Archean rocks and significant...

Abstract Assigning correct protolith to high metamorphic-grade core zone rocks of large hot orogens is a particularly important challenge overcome when attempting constrain the early stages orogenic evolution and paleogeography lithotectonic units from these orogens. The Gurla Mandhata complex in NW Nepal exposes Himalayan metamorphic (HMC), sequence gneiss, migmatite, granite, hinterland oroge...

“Laoshan Jade” is located in the Yangkou area of Sulu UHP metamorphic belt. This first time a systematic research study performed on its conventional gemological characteristics, mineral compositions, geochemical and petrogenesis using polarized light microscope, an electron probe microanalyzer (EMPA), X-ray fluorescence spectrometer (XRF), Raman spectrometer. The characteristics are consistent...

Abstract The Teena Zn-Pb deposit is located in the Carpentaria Zn Province (Australia), which contains some of largest clastic dominant (CD-type) massive sulfide deposits world. timing main stage hydrothermal mineralization subbasin constrained to midstage burial diagenesis, during a period short-lived regional extension. To distinguish alteration from spatially and temporally overlapping diage...