AbstractThe petrogenesis of the world famous Koktokay No. 3 pegmatite in the Chinese Altai Mountains is still enigmatic due to its superenrichment of rare metals and the apparent absence of a parental granite. We present results from a granite apophysi…
AbstractThe Chinese Tianshan experienced largescale transcurrent tectonics, synkinematic emplacement of ultramafic to felsic intrusions, and the formation of various mineral deposits during late Paleozoic accretionary orogenesis. The relationships amon…
AbstractMiocene rhyolitic volcanism of eastern Oregon, USA, can be divided into two main episodes. Mantle plume upwelling is thought to have generated Columbia River Basalt Group (CRBG) lavas and coeval >16.5–15 Ma silicic volcanism trending north–s…
AbstractThe Ediacaran–Cambrian boundary strata in the Great Basin of the southwestern United States record biological, geochemical, and tectonic change during the transformative interval of Earth history in which metazoans diversified. Here, we integra…
AbstractHeadward erosion breaching a formerly closed paleolake has been interpreted as an integration process between individual drainage networks. However, the rarity of well-documented cases of this process makes it difficult to explore the fluvial r…
AbstractIn the Appalachian Mountains of Vermont, USA, variably serpentinized ultramafic rocks mark the Ordovician Taconic orogenic suture zone. These ultramafic rocks provide evidence for several alteration events that occurred during Appalachian oroge…
AbstractIt has been proposed that the northeastern Tibetan Plateau (NETP) was the most recent plateau sub-region to gain elevation, leading to profound environmental changes in northern East Asia around the mid-Pliocene (ca. 3.6 Ma). Alternatively, env…
AbstractIn his comment, Gabet summarized his critiques regarding our identification of migrating knickpoints in the Sierra and our estimates of both timing and magnitude of surface uplift made using a wide variety of independent measures of fluvial geo…
AbstractThe transition between hillslopes and channels defines landscape characteristics such as drainage density, ridge spacing, and hillslope length. Previous studies of the location of this transition have demonstrated that soil advection and diffus…