Reed S. Lewis

TL;DR: New in situ laser ablation-inductively coupled plasma mass spectrometry and sensitive high-resolution ion microprobe U-Pb geochronology of zircons from the Idaho batholith and spatially overlapping Challis intrusions reveals a series of discrete magmatic belts of different ages and compositions as mentioned in this paper.

TL;DR: The Idaho batholith and spatially overlapping Challis intrusive province in the North American Cordillera have a history of magmatism spanning some 55 Myr as mentioned in this paper, which can be attributed to crustal thickening, resulting from either subduction processes or an outboard terrane collision.

TL;DR: In this article, the Cretaceous%#8211;Paleocene Idaho batholith is divided into a southern Atlanta lobe and northern Bitterroot lobe, and U-Pb ages of the inherited zircon components vary systematically with geographic location both between and within the lobes.

TL;DR: In this article, the ages of the Proterozoic garnets were determined from spatially separated garnet bearing localities in northern Idaho, and the ages are diverse and reflect a progression of Mesoproterozoian metamorphic events.

TL;DR: In this article, detrital zircon grains from 10 metasedimentary rock samples of the Priest River complex and three other amphibolite-facies metamorphic sequences in north-central Idaho were analyzed.