Tectonic model for the Proterozoic growth of North America

SJ Whitmeyer, KE Karlstrom - Geosphere, 2007 - pubs.geoscienceworld.org
This paper presents a plate-scale model for the Precambrian growth and evolution of the
North American continent. The core of the North American continent (Canadian shield) came …

Crustal evolution of southern Laurentia during the Paleoproterozoic: Insights from zircon Hf isotopic studies of ca. 1.75 Ga rocks in central Colorado

ME Bickford, PA Mueller, GD Kamenov… - Geology, 2008 - pubs.geoscienceworld.org
Lu-Hf depleted mantle model (TDM) ages, obtained by analysis of zircons previously dated
by U-Pb methods, demonstrate that ca. 1.75 Ga bimodal Paleoproterozoic rocks in the …

SHRIMP U-Pb zircon ages for Big Creek gneiss, Wyoming and Boulder Creek batholith, Colorado: Implications for timing of Paleoproterozoic accretion of the northern …

WR Premo, CM Fanning - Rocky Mountain Geology, 2000 - pubs.geoscienceworld.org
Sensitive, high-resolution, ion microprobe (SHRIMP) U-Pb zircon ages from a sample of the
high-grade, hornblende-feldspathic Big Creek gneiss of the southeastern Sierra Madre …

The geochemistry and petrogenesis of the Paleoproterozoic Green Mountain arc: A composite (?), bimodal, oceanic, fringing arc

DS Jones, CG Barnes, WR Premo, AW Snoke - Precambrian Research, 2011 - Elsevier
The inferred subduction affinity of the∼ 1780-Ma Green Mountain arc, a dominantly bimodal
igneous terrane (together with immature marine and volcaniclastic sedimentary rocks) …

Proterozoic Farwell Mountain–Lester Mountain suture zone, northern Colorado: Subduction flip and progressive assembly of arcs

AR Tyson, EA Morozova, KE Karlstrom… - …, 2002 - pubs.geoscienceworld.org
This paper considers the amalgamation of arc and oceanic terranes to be the main
mechanism of ca. 1.8–1.6 Ga continental crustal growth in southwestern Laurentia. On the …

New models for Paleoproterozoic orogenesis in the Cheyenne belt region: Evidence from the geology and U-Pb geochronology of the Big Creek Gneiss, southeastern …

DS Jones, AW Snoke, WR Premo… - …, 2010 - pubs.geoscienceworld.org
The disputed age of the deep crust of the Colorado Province is central to hypotheses for
Paleoproterozoic crustal growth in the region. We studied the high-grade Big Creek Gneiss …

Early Proterozoic oceanic crust in the northern Colorado Front Range: Implications for crustal growth and initiation of basement faults

A Cavosie, J Selverstone - Tectonics, 2003 - Wiley Online Library
Early Proterozoic oceanic crust exposed in a shear zone in the northern Colorado Front
Range provides insight into the tectonic evolution of the Colorado province. Tectonically …

Physical state and structure of the crust beneath the Western‐Central United States from multiobservable probabilistic inversion

M Tork Qashqai, JC Afonso, Y Yang - Tectonics, 2018 - Wiley Online Library
Abstract The Southern Rocky Mountains (SRM) have the highest regional elevations, but a
comparable crustal thickness to that of the Great Plains. Isolating the contributions of the …

Correlating Proterozoic synorogenic metasedimentary successions in southwestern Laurentia: New insights from detrital zircon U-Pb geochronology of …

JV Jones III, K Thrane - Rocky Mountain Geology, 2012 - pubs.geoscienceworld.org
Detrital zircon ages from quartzite and metaconglomerate exposed in the Park Range, Front
Range, and Sawatch Range of northern and central Colorado reveal new information about …

Tectonic evolution of the Proterozoic Colorado province, Southern Rocky Mountains: A summary and appraisal

PK Sims, HJ Stein - Rocky Mountain Geology, 2003 - pubs.geoscienceworld.org
The Colorado province is a major component of a> 1000-km-wide belt of Paleoproterozoic
ocean-arc rocks that occupies the southwestern United States. Known as the …