Abstract Detrital zircon U-Pb studies of mudstone provenance are rare but may preferentially fingerprint distal sources. To examine this issue, Pierre Shale and Trinidad Sandstone deposited in a Late Cretaceous deltaic environment the Raton Basin, Colorado (USA), were measured for detrital age by laser ablation–inductively coupled plasma–mass spectrometry. Two major peaks at ca. 70 1690 Ma foun...

Abstract The North China craton of central Asia is a natural laboratory for investigating early Earth tectonic processes including subduction and large-scale horizontal crustal motions. However, it remains unclear how when the formed from amalgamation several blocks orogens Archean Western Eastern blocks, late Central Orogenic Belt, Paleoproterozoic Northern Margin orogen. In this study, we int...

Abstract Four voluminous ignimbrites (150–500 km 3 ) erupted in rapid succession at 27 Ma the central San Juan caldera cluster, Colorado. To reconstruct timescales and thermal evolution of these magma reservoirs, we used zircon ID-TIMS U–Pb geochronology, LA-ICP-MS geochemistry, modeling, age crystallization modeling. Zircon geochronology reveals dispersed spectra all ignimbrites, with decreasi...

Numerous post-ophiolite intrusions exposed into the late Cretaceous–Paleocene Sabzevar ophiolite belt, northeast Iran. The intrusions consist of calc-alkaline intermediate to felsic rocks with metaluminous to peraluminous in nature and adakitic affinities. Based on U-Th-Pb dating on separated zircons by SHRIMP Ⅱ, the emplacement age of these rocks into the ophiolite zone is constrained to ~45 M...

Abstract The quantification of rates for the competing forces tectonic uplift and erosion has important implications understanding topographic evolution. Here, we quantify complex interplay between uplift, development, recorded in hanging walls several active reverse faults Ventura basin, southern California, USA. We use cosmogenic 26Al/10Be isochron burial dating 10Be surface exposure to const...