Explanipedia

Tectonic tremor: The chatter of mafic underplating Open

Geena Littel, M. G. Bostock, C. G. Sammis, Simon M. Peacock, Andrew J. Calvert · 2025

Tremor is a weak seismic signal accompanying slow fault slip at plate boundaries. The relationship between tremor and slow slip and the tremor source mechanism have been widely debated, owing largely to the challenge of accurately locating…

Channelized metasomatism in Archean cratonic roots as a mechanism of lithospheric refertilization Open

Eric Roots, Graham J. Hill, Ben M. Frieman, Richard S. Smith, James A. Craven , et al. · 2025

Comment on egusphere-2025-1196 Open

Andrew J. Calvert · 2025

Deformation Controlled Fluid Mass‐Transfer Processes in Ancient Orogens Open

Graham J. Hill, Ben M. Frieman, Eric Roots, Philip E. Wannamaker, Virginie Maris , et al. · 2025

Despite abundant empirical evidence, the details of coupled deformation and mass transfer processes within a framework of the crustal architecture of ancient orogens remains enigmatic. Geophysical imaging of the Larder Lake‐Cadillac deform…

Seismic and Potential Field Constraints on Upper Crustal Architecture of Inner Bering Shelf, Offshore Southwestern Alaska Open

Rajesh Vayavur, Andrew J. Calvert · 2024

Southwestern Alaska encompasses a group of fault-bounded tectonostratigraphic terranes that were accreted to North America during the Mesozoic and Paleogene. To characterize the offshore extension of these terranes and several significant …

Constraints on Growth and Stabilization of the Western Superior Craton From Inversion of Magnetotelluric Data Open

Eric Roots, Ben M. Frieman, Graham J. Hill, Richard S. Smith, J A Craven , et al. · 2024

A data set consisting of 376 broadband and long‐period MT measurements was used to generate the first ever 3D resistivity model of the Archean western Superior Craton. The modeled resistivity structure is compared to coincident seismic ref…

Subsurface distribution of granites and greenstones in the Paleoarchean East Pilbara Terrane from 3-D gravity inversion Open

N Hayward, Andrew J. Calvert, Huaiyu Yuan, Klaus Gessner, Michael P. Doublier · 2024

The Paleoarchean East Pilbara Terrane contains some of the oldest rocks on Earth, and has a distinctive surface architecture of granite domes surrounded by arcuate greenstone belts. Explanations for creation of the domes include fold inter…

Tectonic tremor: the chatter of mafic underplating beneath southern Vancouver Island? Open

Geena Littel, M. G. Bostock, C. G. Sammis, Simon M. Peacock, Andrew J. Calvert · 2024

Tremor is a low-amplitude seismic signal that usually temporally coincides with episodic slow fault slip at plate boundaries worldwide. Since the discovery of tremor in Cascadia, significant effort has been devoted to understanding its rel…

Seismic Reflection and Potential Field Constraints on Imbrication and Exhumation of the Paleoarchean Narryer Terrane, Yilgarn Craton Open

Samantha E. Sellars, Andrew J. Calvert, Michael P. Doublier · 2022

The Narryer Terrane, which is located on the northwest margin of the Yilgarn Craton, is one of the oldest preserved blocks of continental crust on Earth with rocks as old as 3.73 Ga and detrital zircons up to 4.4 Ga. In 2010‐11, three deep…

Magmatic, hydrothermal and ore element transfer processes of the southeastern Archean Superior Province implied from electrical resistivity structure Open

Eric Roots, Graham J. Hill, Ben M. Frieman, Philip E. Wannamaker, Virginie Maris , et al. · 2021

Seismic reflections from a lithospheric suture zone below the Archaean Yilgarn Craton Open

Andrew J. Calvert, Michael P. Doublier, Samantha E. Sellars · 2021

Plumbing and architecture of a crustal mineralizing system in the Archean Superior Province, Canada Open

Eric Roots, Graham J. Hill, Ben M. Frieman, James A. Craven, Richard S. Smith , et al. · 2021

<p>The role of melts and magmatic/metamorphic fluids in mineralization processes is well established. However, the role of crustal architecture in defining source and sink zones in the middle to lower crust remains enigmatic. Integra…

Cascadia low frequency earthquakes at the base of an overpressured subduction shear zone Open

Andrew J. Calvert, M. G. Bostock, Geneviève Savard, Martyn Unsworth · 2020

Migration of reflector orientation attributes in deep seismic profiles: evidence for decoupling of the Yilgarn Craton lower crust Open

Andrew J. Calvert, Michael P. Doublier · 2019

Interpretation of deep seismic data is challenging due to the lack of direct geological constraints from drilling and the more limited amount of data available from 2-D profiles in comparison to hydrocarbon exploration surveys. Thus other …

Responses to Reviewer 1: Don White Open

Andrew J. Calvert · 2019

Response to Reviewer 2: Chris Juhlin Open

Andrew J. Calvert · 2019

Review of Gorszczyk et al Open

Andrew J. Calvert · 2019

Migration of Reflector Orientation Attributes in Deep Seismic Profiles: Evidence for Decoupling of the Yilgarn Craton Lower Crust Open

Andrew J. Calvert, Michael P. Doublier · 2019

Interpretation of deep seismic data is challenging due to the lack of direct geological constraints from drilling and the more limited amount of data available from 2-D profiles in comparison to hydrocarbon exploration surveys. Thus other …

Supplemental Material: Pleistocene volcanism and shifting shorelines at Lake Tahoe, California Open

Winifred T. Kortemeier, Andrew J. Calvert, James G. Moore, Richard A. Schweickert · 2018

Geosphere, April 2018, v. 14, p. 812-834, doi:10.1130/GES01551.1, Supplemental Items. Age spectrum and isochron diagrams and argon tabulated data.

Seismic and gravity constraints on the crustal architecture of the Intermontane terranes, central Yukon Open

Andrew J. Calvert, N Hayward, Rajesh Vayavur, Maurice Colpron · 2017

In 2004, two seismic reflection lines were shot across the Mesozoic Whitehorse trough and adjacent terranes. Three-dimensional first-arrival tomographic inversion is used to constrain lithology to 800–1200 m depth, and surface structures a…

Geological Interpretation of the Gawler Craton section of the Eucla-Gawler Seismic Line (13GA-EG1E) Open

Tom Wise, Michael P. Doublier, R. Dutch, Dean Clark, Mark Pawley , et al. · 2015

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