Formation of the Sierra Nevada Batholith: Magmatic and Tectonic Processes and Their Tempos, Sierra Nevada, California

摘要

The evolution of continental margin orogens and magmatic arcs involves non-steady-state processes of subduction, orogeny, magmatism, exhumation, and erosion/redeposition. Recent studies have begun to examine the tempo of cyclic volumetric addition rates to arcs of plutonic and volcanic materials, driven by feedbacks between these processes both at the scale of arcs and single magmatic or volcanic systems. A full evaluation of these arc tempos requires the development and syntheses of large databases with high-precision temporal control. One arc, where a number of research groups have been actively developing and synthesizing high-precision databases, is the Sierra Nevada, California, USA. This Field Forum will bring researchers together to share and discuss various data sets while examining components of the Mesozoic arc. Our goal is to foster cross-disciplinary discussions, leading to a better understanding of the components of batholith formation; the tectonic controls on the tempo of arc development; and the significance of important new field, geochronologic, and geochemical databases.