A Quantitative Tomotectonic Plate Reconstruction of Western North America and the Eastern Pacific Basin

  title={A Quantitative Tomotectonic Plate Reconstruction of Western North America and the Eastern Pacific Basin},
  author={Edward J. Clennett and Karin Sigloch and Mitchell G. Mihalynuk and Maria Seton and Martha A. Henderson and Kasra Hosseini and Afsaneh Mohammadzaheri and Stephen T. Johnston and R. Dietmar M{\"u}ller},
  journal={Geochemistry Geophysics Geosystems},
Plate reconstructions since the breakup of Pangaea are mostly based on the preserved spreading history of ocean basins, within absolute reference frames that are constrained by a combination of age‐progressive hotspot tracks and palaeomagnetic data. The evolution of destructive plate margins is difficult to constrain from surface observations as much of the evidence has been subducted. Seismic tomography can directly constrain palaeo‐trench locations by imaging subducted lithosphere in the… 
Subduction history of the Caribbean from upper-mantle seismic imaging and plate reconstruction
Teleseismic P-wave imaging of the eastern Caribbean upper mantle is improved and identified subducted-plate fragments are compared with trench locations predicted from plate reconstruction, showing that material at 700–1200 km depth below South America derives from 90–115 Myr old westward subduction, initiated prior to Caribbean Large-Igneous-Province volcanism.
Raising the Resurrection plate from an unfolded-slab plate tectonic reconstruction of northwestern North America since early Cenozoic time
The configuration of mid-ocean ridges subducted below North America prior to Oligocene time is unconstrained by seafloor isochrons and has been primarily inferred from upper-plate geology,
Middle Jurassic to Early Cretaceous tectonic evolution of the western Klamath Mountains and outboard Franciscan assemblages, northern California–southern Oregon, USA
The Klamath Mountains province and adjacent Franciscan subduction complex (northern California–southern Oregon) together contain a world-class archive of subduction-related growth and stabilization
A crucial geologic test of Late Jurassic exotic collision versus endemic re-accretion in the Klamath Mountains Province, western United States, with implications for the assembly of western North America
Differing interpretations of geophysical and geologic data have led to debate regarding continent-scale plate configuration, subduction polarity, and timing of collisional events on the western North
Extending full-plate tectonic models into deep time: Linking the Neoproterozoic and the Phanerozoic
Abstract Recent progress in plate tectonic reconstructions has seen models move beyond the classical idea of continental drift by attempting to reconstruct the full evolving configuration of tectonic
Geological, geophysical and plate kinematic constraints for models of the India-Asia collision and the post-Triassic central Tethys oceans
Abstract In this study, we integrate bedrock datasets, observations of subducted slabs in the mantle, and plate kinematic constraints to constrain models for the India-Asia collision and the central
Very low-grade metamorphism of the Dezadeash Formation (Jura-Cretaceous): Constraints on the tectonometamorphic history of the Dezadeash flysch basin and implications regarding the tectonic evolution of the Northern Cordillera of Alaska and Yukon
Mesozoic convergence of the Wrangellia composite terrane with the western margin of North America resulted in the collapse of intervening flysch basins. One of these basins, the Jurassic-Cretaceous
The Galápagos Islands: biogeographic patterns and geology
  • M. Heads, J. Grehan
  • Medicine
    Biological reviews of the Cambridge Philosophical Society
  • 2021
The present distributions are explicable if ancestors survived as metapopulations occupying both the Galápagos hotspot and other regions before differentiating, more or less in situ.
Multiscale, radially anisotropic shear wave imaging of the mantle underneath the contiguous United States through joint inversion of USArray and global data sets
EGU2013-2658. Levander, A., Schmandt, B., Miller, M.S., Liu, K., Karlstrom, K.E., Crow, R.S., Lee, C.-T.A. & Humphreys, E.D., 2011. Continuing Colorado plateau uplift by delamination-style convective
Predicting the emplacement of Cordilleran porphyry copper systems using a spatio-temporal machine learning model
Abstract Porphyry copper (Cu) systems occur along magmatic belts derived in subduction zones. Our current understanding of their formation is restricted to observations from the overriding plate,


Intra-oceanic subduction shaped the assembly of Cordilleran North America
This work offers a reinterpretation of North American palaeogeography and test it quantitatively: collision events are clearly recorded by slab geometry, and can be time calibrated and reconciled with plate reconstructions and surface geology.
Two-stage subduction history under North America inferred from multiple-frequency tomography
Eastward subduction of oceanic tectonic plates has shaped the geologic history of western North America over the past 150 million years. The mountain-building and volcanism that brought forth the
Mantle and geological evidence for a Late Jurassic–Cretaceous suture spanning North America
Crustal blocks accreted to North America form two major belts that are separated by a tract of collapsed Jurassic–Cretaceous basins extending from Alaska to Mexico. Evidence of oceanic lithosphere
The tectonic evolution of the Arctic since Pangea breakup: Integrating constraints from surface geology and geophysics with mantle structure
Abstract The tectonic evolution of the circum-Arctic, including the northern Pacific, Siberian and North American margins, since the Jurassic has been punctuated by the opening and closing of ocean
Pacific‐Panthalassic Reconstructions: Overview, Errata and the Way Forward
We have devised a new absolute Late Jurassic‐Cretaceous Pacific plate model using a fixed hot spot approach coupled with paleomagnetic data from Pacific large igneous provinces (LIPs) while
Reconstruction of Subduction and Back‐Arc Spreading in the NW Pacific and Aleutian Basin: Clues to Causes of Cretaceous and Eocene Plate Reorganizations
The Eocene (~50–45 Ma) major absolute plate motion change of the Pacific plate forming the Hawaii‐Emperor bend is thought to result from inception of Pacific plate subduction along one of its modern
Mantle provinces under North America from multifrequency P wave tomography
This is a survey of mantle provinces (large-scale seismic anomalies) under North America, from the surface down to 1500–1800 km depth. The underlying P velocity model was obtained by multifrequency
Global continental and ocean basin reconstructions since 200 Ma
Global plate motion models provide a spatial and temporal framework for geological data and have been effective tools for exploring processes occurring at the earth's surface. However, published
Absolute plate motions since 130 Ma constrained by subduction zone kinematics
Abstract The absolute motions of the lithospheric plates relative to the Earth's deep interior are commonly constrained using observations from paleomagnetism and age-progressive seamount trails. In
Intraoceanic subduction spanned the Pacific in the Late Cretaceous–Paleocene
It is demonstrated that two intraoceanic subduction zones spanned the width of the North Pacific Ocean in Late Cretaceous through Paleocene time and a simple plate tectonic model is presented that explains how they shaped the ~80 to 47 Ma kinematic history of the Pacific realm and drove a major plate reorganization.