Search Results - "Gurnis, Michael"
-
1
Subduction initiation at relic arcs
Published in Geophysical research letters (16-09-2015)“…Although plate tectonics is well established, how a new subduction zone initiates remains controversial. Based on plate reconstruction and recent ocean…”
Get full text
Journal Article -
2
Subduction Duration and Slab Dip
Published in Geochemistry, geophysics, geosystems : G3 (01-04-2020)“…Abstract The dip angles of slabs are among the clearest characteristics of subduction zones, but the factors that control them remain obscure. Here, slab dip…”
Get full text
Journal Article -
3
Dynamic topography, gravity and the role of lateral viscosity variations from inversion of global mantle flow
Published in Geophysical journal international (01-11-2016)“…Lateral viscosity variations (LVVs) in the mantle influence geodynamic processes and their surface expressions. With the observed long-wavelength geoid,…”
Get full text
Journal Article -
4
Southward expanding plate coupling due to variation in sediment subduction as a cause of Andean growth
Published in Nature communications (14-12-2021)“…Growth of the Andes has been attributed to Cenozoic subduction. Although climatic and tectonic processes have been proposed to be first-order mechanisms, their…”
Get full text
Journal Article -
5
Sea level and vertical motion of continents from dynamic Earth models since the Late Cretaceous
Published in AAPG bulletin (01-11-2012)“…Dynamic earth models are used to better understand the impact of mantle dynamics on the vertical motion of continents and regional and global sea level change…”
Get full text
Journal Article -
6
Reconstructing Farallon Plate Subduction beneath North America Back to the Late Cretaceous
Published in Science (American Association for the Advancement of Science) (07-11-2008)“…Using an inverse mantle convection model that assimilates seismic structure and plate motions, we reconstruct Farallon plate subduction back to 100 million…”
Get full text
Journal Article -
7
Influence of Farallon Slab Loading on Intraplate Stress and Seismicity in Eastern North America in the Presence of Pre‐Existing Weak Zones
Published in Geochemistry, geophysics, geosystems : G3 (01-06-2024)“…Despite the stability of the continental interior, eastern North America has hosted many significant historical earthquakes. Seismicity concentrates within…”
Get full text
Journal Article -
8
A Global Plate Model Including Lithospheric Deformation Along Major Rifts and Orogens Since the Triassic
Published in Tectonics (Washington, D.C.) (01-06-2019)“…Global deep‐time plate motion models have traditionally followed a classical rigid plate approach, even though plate deformation is known to be significant…”
Get full text
Journal Article -
9
Rapid Cenozoic Subsidence in the Gulf of Mexico Resulting From Hess Rise Conjugate Subduction
Published in Geophysical research letters (16-11-2017)“…Enigmatic surface deflections occurred in North America starting from the Cretaceous, including the continental‐scale drainage reorganization and the…”
Get full text
Journal Article -
10
On the Origin of Small‐Scale Seismic Scatters at 660‐km Depth
Published in Geochemistry, geophysics, geosystems : G3 (01-12-2022)“…Strong small‐scale seismic scatters (<10 km) have been recently observed at 660 km depth, but their origin remains uncertain. We systematically conduct both…”
Get full text
Journal Article -
11
Tectonic evolution and deep mantle structure of the eastern Tethys since the latest Jurassic
Published in Earth-science reviews (01-11-2016)“…The breakup of Pangea in the Jurassic saw the opening of major ocean basins at the expense of older Tethyan and Pacific oceanic plates. Although the Tethyan…”
Get full text
Journal Article -
12
Photoferrotrophic Bacteria Initiated Plate Tectonics in the Neoarchean
Published in Geophysical research letters (16-07-2023)“…Plate tectonics distinguishes Earth from the other terrestrial planets but its initiation mechanism and onset time are debated. We propose plate tectonics was…”
Get full text
Journal Article -
13
A Giant Impact Origin for the First Subduction on Earth
Published in Geophysical research letters (16-05-2024)“…Hadean zircons provide a potential record of Earth's earliest subduction 4.3 billion years ago. It remains enigmatic how subduction could be initiated so soon…”
Get full text
Journal Article -
14
Mantle‐induced subsidence and compression in SE Asia since the early Miocene
Published in Geophysical research letters (16-03-2016)“…Rift basins developed extensively across Sundaland, the continental core of Southeast Asia, since the Eocene. Beginning in the early Miocene, basins in…”
Get full text
Journal Article -
15
Assimilating lithosphere and slab history in 4-D Earth models
Published in Physics of the earth and planetary interiors (01-01-2015)“…•Progressive data assimilation method includes data constraints in dynamic models.•Enables viscous flow models to be consistent with plate history (tectonic)…”
Get full text
Journal Article -
16
Ridge subduction sparked reorganization of the Pacific plate‐mantle system 60–50 million years ago
Published in Geophysical research letters (28-03-2015)“…A reorganization centered on the Pacific plate occurred ~53–47 million years ago. A “top‐down” plate tectonic mechanism, complete subduction of the Izanagi…”
Get full text
Journal Article -
17
Trench motion‐controlled slab morphology and stress variations: Implications for the isolated 2015 Bonin Islands deep earthquake
Published in Geophysical research letters (16-07-2017)“…The subducted old and cold Pacific Plate beneath the young Philippine Sea Plate at the Izu‐Bonin trench over the Cenozoic hosts regional deep earthquakes. We…”
Get full text
Journal Article -
18
A rapid burst in hotspot motion through the interaction of tectonics and deep mantle flow
Published in Nature (London) (12-05-2016)“…Models of thermochemical convection reveal flow patterns in the deep lower mantle under the north Pacific since 100 million years ago that explain how the…”
Get full text
Journal Article -
19
Dynamics of Plate Tectonics and Mantle Flow: From Local to Global Scales
Published in Science (American Association for the Advancement of Science) (27-08-2010)“…Plate tectonics is regulated by driving and resisting forces concentrated at plate boundaries, but observationally constrained high-resolution models of global…”
Get full text
Journal Article -
20
The role of oceanic plateau subduction in the Laramide orogeny
Published in Nature geoscience (01-05-2010)“…The cause of the Laramide phase of mountain building remains uncertain. Conceptual models implicate the subduction of either ocean ridges or conjugates of the…”
Get full text
Journal Article