The following table displays datasets relating to Global and regional plate motion models. Please cite the relevant publication when using these data. Contact Bianca Simonetta or Michael Chin to make changes to this table.
*The “grids” include age grids and spreading rate grids(availability varies).
| Short Description And Data | Timeframe | Reference |
|---|---|---|
| Cao et al. (2024) Earth’s tectonic and plate boundary evolution over 1.8 billion years (download data) | 1800 - 0 Ma | Cao, X., Collins, A.S., Pisarevsky, S., Flament, N., Li, S., Hasterok, D. and Müller, R.D., 2024. Earth’s tectonic and plate boundary evolution over 1.8 billion years. Geoscience Frontiers, v.15, n. 2, p.101922, https://doi.org/10.1016/j.gsf.2024.101922. |
| Alfonso et al. (2024) A Modified Global Plate Model Including Quantitative Tomotectonic Plate Reconstruction of Western North America and the Eastern Pacific Basin (download data | grids) ~~~~ Modified Clennett et al. (2020)/Muller et al. (2019) model. | 170 - 0 Ma | Christopher P. Alfonso, R. Dietmar Müller, Ben Mather, Michele Anthony; Spatio-temporal copper prospectivity in the American Cordillera predicted by positive-unlabeled machine learning. GSA Bulletin 2024; doi: https://doi.org/10.1130/B37614.1 |
| Müller et al. (2022) A tectonic-rules-based mantle reference frame since 1 billion years ago (download data | grids) | 1000 - 0 Ma | Müller, R. D., Flament, N., Cannon, J., Tetley, M. G., Williams, S. E., Cao, X., Bodur, Ö. F., Zahirovic, S., and Merdith, A.: A tectonic-rules-based mantle reference frame since 1 billion years ago – implications for supercontinent cycles and plate–mantle system evolution, Solid Earth, 13, 1127–1159, https://doi.org/10.5194/se-13-1127-2022, 2022. |
| Zahirovic et al. (2022) Subduction kinematics and carbonate platform interactions (download data | grids) | 400 - 0 Ma | Zahirovic, S., Eleish, A., Doss, S., Pall, J., Cannon, J., Pistone, M., Tetley, M. G., Young, A., & Fox, P. (2022). Subduction kinematics and carbonate platform interactions. Geoscience Data Journal, 9(2), p.371-383, https://doi.org/10.1002/gdj3.146. |
| Merdith et al. (2021) Extending full-plate tectonic models into deep time: Linking the Neoproterozoic and the Phanerozoic (download data) | 1000 - 0 Ma | Andrew S. Merdith, Simon E. Williams, Alan S. Collins, Michael G. Tetley, Jacob A. Mulder, Morgan L. Blades, Alexander Young, Sheree E. Armistead, John Cannon, Sabin Zahirovic, R. Dietmar Müller, (2021). Extending full-plate tectonic models into deep time: Linking the Neoproterozoic and the Phanerozoic, Earth-Science Reviews, Volume 214, 2021, 103477, ISSN 0012-8252, https://doi.org/10.1016/j.earscirev.2020.103477. |
| Clennett et al. (2020) A Quantitative Tomotectonic Plate Reconstruction of Western North America and the Eastern Pacific Basin (download data | grids) | 170 - 0 Ma | Clennett, E., Sigloch, K., Mihalynuk, M. G., Seton, M., Hosseini, K., Mohammadzaheri, A., Johnston, S.T., & Müller, R.D. (2020). A Quantitative Tomotectonic Plate Reconstruction of Western North America and the Eastern Pacific Basin, Geochemistry, Geophysics, Geosystems, https://doi.org/10.1029/2020GC009117 |
| Müller et al. (2019) A Global Plate Model Including Lithospheric Deformation Along Major Rifts and Orogens Since the Triassic (download data | grids) | 250 - 0 Ma | Müller, R. D., Zahirovic, S., Williams, S. E., Cannon, J., Seton, M., Bower, D. J., Tetley, M. G., Heine, C., Le Breton, E., Liu, S., Russell, S. H. J., Yang, T., Leonard, J., and Gurnis, M. (2019), A global plate model including lithospheric deformation along major rifts and orogens since the Triassic. Tectonics, vol. 38, https://doi.org/10.1029/2018TC005462. |
| Young et al. (2018) Global kinematics of tectonic plates and subduction zones since the late Paleozoic Era. (download data) | 410 - 0 Ma | Young, A., Flament, N., Maloney, K., Williams, S., Matthews, K., Zahirovic, S., Müller, R.D., Global kinematics of tectonic plates and subduction zones since the late Paleozoic Era, Geoscience Frontiers (2018), doi: 10.1016/j.gsf.2018.05.011." |
| Merdith et al. (2017) Rodinia model from Gondwana Research (download data) | 1000 - 520 Ma | Merdith, A.S., Collins, A.S., Williams, S.E., Pisarevsky, S., Foden, J.F., Archibald, D., Blades, M.L., Alessio, B.L., Armistead, S., Plavsa, D. and Clark, C., 2017. A full-plate global reconstruction of the Neoproterozoic. Gondwana Research, https://doi.org/10.1016/j.gr.2017.04.001. |
| Matthews et al. (2016) Late Paleozoic to present-day global model (Global and Planetary Change) (download data) Note: these files have the Pacific correction applied | 410 - 0 Ma | Matthews, K.J., Maloney, K.T., Zahirovic, S., Williams, S.E., Seton, M., and Müller, R.D. 2016, Global plate boundary evolution and kinematics since the late Paleozoic : Global and Planetary Change, Vol 146, 226-250, https://doi.org/10.1016/j.gloplacha.2016.10.002. |
| Zahirovic et al. (2016) Eastern Tethys refinements to Muller et al. (2016) AREPS model. (download data | grids) | 230 - 0 Ma | Zahirovic, S., Matthews, K. J., Flament, N., Müller, R. D., Hill, K. C., Seton, M., and Gurnis, M., 2016, Tectonic evolution and deep mantle structure of the eastern Tethys since the latest Jurassic. Earth Science Reviews, v. 162, p. 293-337, https://doi.org/10.1016/j.earscirev.2016.09.005. |
| Müller et al. (2016) Late Triassic to present-day global model (Annual Review of Earth and Planetary Sciences) (download data | grids) *NOTE: these files have the Pacific correction applied | 230 - 0 Ma | Müller, R.D., Seton, M., Zahirovic, S., Williams, S.E., Matthews, K.J., Wright, N.M., Shephard, G.E., Maloney, K.T., Barnett-Moore, N., Hosseinpour, M., Bower, D.J., Cannon, J., 2016, Ocean basin evolution and global-scale plate reorganization events since Pangea breakup: Annual Reviews of Earth and Planetary Sciences, v.44, p.107-138, https://doi.org/10.1146/annurev-earth-060115-012211. |
| Scotese (2016) PALEOMAP reconstructions (download data) | 1100 - 0 Ma | Scotese, C.R., 2016. PALEOMAP PaleoAtlas for GPlates and the PaleoData Plotter Program, PALEOMAP Project. |
| Zahirovic et al. (2014) and Gibbons et al. (2015) A tectonic model reconciling evidence for the collisions between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys (Shephard et al., 2013) (download data) | 200 - 0 Ma | Zahirovic, S., Seton, M., and Müller, R., 2014, The Cretaceous and Cenozoic tectonic evolution of Southeast Asia: Solid Earth (EGU), v.5, p.227-273, https://doi.org/10.5194/se-5-227-2014. ~~~~ Gibbons, A., Zahirovic, S., Müller, R., Whittaker, J., and Yatheesh, V., 2015, A tectonic model reconciling evidence for the collisions between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys: Gondwana Research, v.28(2), p.451-492, https://doi.org/10.1016/j.gr.2015.01.001. |
| Shephard et al. (2013) Circum-Arctic refinements of the Seton et al. (2012) model (download data) | 200 - 0 Ma | Shephard, G. E., Müller, R. D., and Seton, M., 2013, The tectonic evolution of the Arctic since Pangea breakup: Integrating constraints from surface geology and geophysics with mantle structure: Earth-Science Reviews, v. 124, p. 148-183, https://doi.org/10.1016/j.earscirev.2013.05.012. |
| Seton et al. (2012) Post-Pangea model from Earth-Science Reviews (download data | grids) | 200 - 0 Ma | Seton, M., Müller, R., Zahirovic, S., Gaina, C., Torsvik, T., Shephard, G., Talsma, A., Gurnis, M., Turner, M., Maus, S., and Chandler, M., 2012, Global continental and ocean basin reconstructions since 200 Ma: Earth-Science Reviews, v. 113, no. 3-4, p. 212-270, https://doi.org/10.1016/j.earscirev.2012.03.002. |
| Shephard et al. (2012) Global models with alternative absolute reference frames (download data) | 140 - 0 Ma | Shephard, G. E., Bunge, H. P., Schuberth, B. S. A., Müller, R., Talsma, A., Moder, C., and Landgrebe, T., 2012, Testing absolute plate reference frames and the implications for the generation of geodynamic mantle heterogeneity structure: Earth and Planetary Science Letters, v. 317, p. 204-217, https://doi.org/10.1016/j.epsl.2011.11.027. |
| Gurnis et al. (2012) First plate motion model using the GPlates continuously closing plate polygon algorithm (download data) | 140 - 0 Ma | Gurnis, M., Turner, M., Zahirovic, S., DiCaprio, L., Spasojevic, S., Müller, R., Boyden, J., Seton, M., Manea, V., and Bower, D., 2012, Plate Tectonic Reconstructions with Continuously Closing Plates: Computers & Geosciences, v. 38, no. 1, p. 35-42, https://doi.org/10.1016/j.cageo.2011.04.014. |
| Li et al. (2008) Rodinia model from Precambrian Research (download data) | 1100 - 530 Ma | Li, Z.X., Collins, A.S., Davidson, A., De Waele, B., Ernst, R.E., Fitzsimons, I.C.W., Fuck, R.A., Gladkochub, D.P., Jacobs, J., Karlstrom, K.E., Lu, S., Natapov, L.M., Pease, V., Thrane, K., and Vernikovsky, V., 2008, Assembly, configuration, and break-up history of Rodinia: A synthesis: Precambrian Research v. 160, p. 179–210. |
GPlates is a free desktop software for the interactive visualisation of plate-tectonics. The compilation and documentation of GPlates 2.5 data was primarily funded by AuScope National Collaborative Research Infrastructure (NCRIS).
GPlates is developed by the EarthByte Group (part of AuScope NCRIS) at the University of Sydney and the Division of Geological and Planetary Sciences (GPS) at California Institute of Technology (CalTech). … Read more…
GPlates is a free desktop software for the interactive visualisation of plate-tectonics. The compilation and documentation of GPlates 2.4 data was primarily funded by AuScope National Collaborative Research Infrastructure (NCRIS).
GPlates is developed by the EarthByte Group (part of AuScope NCRIS) at the University of Sydney and the Division of Geological and Planetary Sciences (GPS) at California Institute of Technology (CalTech). … Read more…
Understanding the long-term evolution of Earth’s plate-mantle system is reliant on absolute plate motion models in a mantle reference frame, but such models are both difficult to construct and controversial. We present a tectonic rules-based optimisation approach to construct a plate motion model in a mantle reference frame covering the last billion years and use … Read more…
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 plates and plate boundaries. A particular problem for the Neoproterozoic and Cambrian is that many existing interpretations of geological and palaeomagnetic data have remained disconnected from younger, better-constrained … Read more…
GPlates is a free desktop software for the interactive visualisation of plate-tectonics. The compilation and documentation of GPlates 2.3 data was primarily funded by AuScope National Collaborative Research Infrastructure (NCRIS).
GPlates is developed by the EarthByte Group (part of AuScope NCRIS) at the University of Sydney and the Division of Geological and Planetary Sciences (GPS) at California Institute of Technology (CalTech). … Read more…
Abstract: 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 … Read more…
A book chapter in: New Caledonia: Geology, Geodynamic Evolution and Mineral Resources. Geological Society, London, Memoirs, 51, 13–26, https://doi.org/10.1144/M51-2018-5 has finally been published. The book chapter, which gives a brief overview of the geodynamics of New Caledonia, was a collaboration between colleagues from New Caledonia, New Zealand, Australia and France. Abstract below: The SW Pacific … Read more…
GPlates is a free desktop software for the interactive visualisation of plate-tectonics. The compilation and documentation of GPlates 2.2 data was primarily funded by AuScope National Collaborative Research Infrastructure (NCRIS).
GPlates is developed by an international team of scientists and professional software developers at the EarthByte Project (part of AuScope) at the University of Sydney, the Division of Geological and Planetary Sciences (GPS) at CalTech, the Geodynamics team at the Geological Survey of Norway (NGU) and the Centre for Earth Evolution and Dynamics (CEED) at the University of Oslo. … Read more…
A Global Plate Model Including Lithospheric Deformation Along Major Rifts and Orogens Since the Triassic R. Dietmar Müller, Sabin Zahirovic, Simon E. Williams, John Cannon, Maria Seton, Dan J. Bower, Michael G. Tetley, Christian Heine, Eline Le Breton, Shaofeng Liu, Samuel H. J. Russell, Ting Yang, Jonathon Leonard, and Michael Gurnis Journal: Tectonics (open access) … Read more…
Dietmar Muller, Maria Seton and Sabin Zahirovic published an article in The Conversation on How Earth’s continents became twisted and contorted over millions of years based on their recently published paper in Tectonics. Classical plate tectonic theory was developed in the 1960s. It proposed that the outer layer of our planet is made up of a small number of rigid … Read more…
Sabin Zahirovic, Kara J. Matthews, Nicolas Flament, R. Dietmar Müller, Kevin C. Hill, Maria Seton, Michael Gurnis Earth-Science Reviews Citation: Zahirovic, S., Matthews, K.J., Flament, N., Müller, R.D., Hill, K.C., Seton, M. and Gurnis, M., 2016, Tectonic evolution and deep mantle structure of the eastern Tethys since the latest Jurassic, Earth Science Reviews, 162, 293-337. The … Read more…
GPlates is a free desktop software for the interactive visualisation of plate-tectonics. The compilation and documentation of GPlates 2.1 data was primarily funded by AuScope National Collaborative Research Infrastructure (NCRIS).
GPlates is developed by an international team of scientists and professional software developers at the EarthByte Project (part of AuScope) at the University of Sydney, the Division of Geological and Planetary Sciences (GPS) at CalTech, the Geodynamics team at the Geological Survey of Norway (NGU) and the Centre for Earth Evolution and Dynamics (CEED) at the University of Oslo. … Read more…
Citation: Dutkiewicz, A., Müller, R.D., Wang, X., O’Callaghan, S., Cannon, J., Wright, N.M., 2017. Predicting sediment thickness on vanished ocean crust since 200 Ma. Geochemistry, Geophysics, Geosystems, 18, 4586–4603. Tracing sedimentation through time on existing and vanished seafloor is imperative for constraining long-term eustasy and for calculating volumes of subducted deep-sea sediments that contribute to global … Read more…
Author List: Wenchao Cao, Sabin Zahirovic, Nicolas Flament, Simon Williams, Jan Golonka, Dietmar Müller Citation: Cao, W., Zahirovic, S., Flament, N., Williams, S., Golonka, J., and Müller, R. D., 2017, Improving global paleogeography since the late Paleozoic using paleobiology: Biogeosciences, v. 14, no. 23, p. 5425-5439. Paleogeographic maps, linked to plate tectonic reconstructions, are key components required for climate models … Read more…
Author List: Andrew Merdith, Simon Williams, Dietmar Müller & Alan Collins. Citation: Merdith, Andrew & Williams, Simon & Müller, Dietmar & Collins, Alan. (2017). Kinematic constraints on the Rodinia-Gondwana transition. Precambrian Research. 299. . 10.1016/j.precamres.2017.07.013. Abstract: Earth’s plate tectonic history during the breakup of the supercontinent Pangea is well constrained from the seafloor spreading record, but evolving plate configurations during … Read more…
Abstract The motion of plates and continents on the planet’s surface are a manifestation of long-term mantle convection and plate tectonics. Present-day plate velocities provide a snapshot of this ongoing process, and have been used to infer controlling factors on the speeds of plates and continents. However, present-day velocities do not capture plate behaviour over … Read more…
Author List: Dietmar Müller, Rakib Hassan, Michael Garnis, Nicolas Flament, Simon Williams. Citation: Müller, Dietmar & Hassan, Rakib & Gurnis, M & Flament, Nicolas & Williams, Simon. (2018). Dynamic topography of passive continental margins and their hinterlands since the Cretaceous. Gondwana Research. . 10.1016/j.gr.2017.04.028. Abstract: Even though it is well accepted that the Earth’s surface topography has been … Read more…
Author List: Andrew Merdith, Alan Collins, Simon Williams, Sergei Pisarevsky, John Foden, Donnelly Archibald, Morgan Blades, Brandon Alessio, Sheree Armistead, Diana Plavsa, Chris Clark, Dietmar Müller Citation: Merdith, Andrew & Collins, Alan & Williams, Simon & Pisarevsky, Sergei & Foden, John & Archibald, Donnelly & Blades, Morgan & Alessio, Brandon & Armistead, Sheree & Plavsa, Diana & Clark, Chris … Read more…
GPlates is a free desktop software for the interactive visualisation of plate-tectonics. The compilation and documentation of GPlates 2.0 data was primarily funded by AuScope National Collaborative Research Infrastructure (NCRIS).
GPlates is developed by an international team of scientists and professional software developers at the EarthByte Project (part of AuScope) at the University of Sydney, the Division of Geological and Planetary Sciences (GPS) at CalTech, the Geodynamics team at the Geological Survey of Norway (NGU) and the Centre for Earth Evolution and Dynamics (CEED) at the University of Oslo. … Read more…
Author List: Dietmar Müller, Maria Seton, Sabin Zahirovic, Simon Williams, Kara Matthews, Nicky Wright, Grace Shephard, Kayla Maloney, Nicholas Barnett-Moore, Maral Hosseinpour, Dan Bower and John Cannon. Citation: Müller, R.D., Seton, M., Zahirovic, S., Williams, S.E., Matthews, K.J., Wright, N.M., Shephard, G.E., Maloney, K.T., Barnett-Moore, N., Hosseinpour, M., Bower, D.J., & Cannon, J. (2016). Ocean Basin Evolution and … Read more…
Citation
Müller R.D., Seton, M., Zahirovic, S., Williams, S.E., Matthews, K.J., Wright, N.M., Shephard, G.E., Maloney, K.T., Barnett-Moore, N., Hosseinpour, M., Bower, D.J., Cannon, J., 2016. Ocean basin evolution and global-scale plate reorganization events since Pangea breakup, Annual Review of Earth and Planetary Sciences, Vol 44, 107-138. DOI: 10.1146/annurev-earth-060115-012211.
Abstract
We present a revised global plate motion model with continuously closing plate boundaries ranging from the Triassic at 230 Ma to the present day, assess differences between alternative absolute plate motion models, and review global tectonic events. Relatively high mean absolute plate motion rates around 9–10 cm yr-1 between 140 and 120 Ma may be related to transient plate motion accelerations driven by the successive emplacement of a sequence of large igneous provinces during that time. … Read more…
Citation
Gibbons, A., Zahirovic, S., Muller, R.D., Whittaker, J., and Yatheesh, V. 2015. A tectonic model reconciling evidence for the collisions between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys. Gondwana Research FOCUS, doi: 10.1016/j.gr.2015.01.001.
Summary
Despite several decades of investigations, inferences on the timing and nature of collisions along the Mesozoic–Cenozoic Eurasian margin remain controversial. We assimilate geological and geophysical evidence into a plate tectonic model for the India–Eurasia collision that includes continuously– … Read more…
Citation
Williams, S., Flament, N., Müller, R. D., & Butterworth, N. (2015). Absolute plate motions since 130 Ma constrained by subduction zone kinematics. Earth and Planetary Science Letters, 418, 66-77. doi:10.1016/j.epsl.2015.02.026.
Summary
The supplementary data set comprise plate reconstructions from 130 Ma to present-day, designed to be used within the open-source reconstruction software GPlates.
There are eight sets of reconstructions. In each case, the relative plate motion (RPM) model is unchanged; the differences lie in the absolute plate motion (APM) model. This is expressed in the rotation file as the finite poles of rotation that describe motion of Africa relative to the Earth’s spin-axis. These files were the basis of the results presented in the EPSL paper. … Read more…
Citation
Williams, S., Flament, N., Müller, R. D., & Butterworth, N. (2015). Absolute plate motions since 130 Ma constrained by subduction zone kinematics. Earth and Planetary Science Letters, 418, 66-77. doi:10.1016/j.epsl.2015.02.026.
Summary
The supplementary data set comprise plate reconstructions from 130 Ma to present-day, designed to be used within the open-source reconstruction software GPlates.
There are eight sets of reconstructions. In each case, the relative plate motion (RPM) model is unchanged; the differences lie in the absolute plate motion (APM) model. This is expressed in the rotation file as the finite poles of rotation that describe motion of Africa relative to the Earth’s spin-axis. These files were the basis of the results presented in the EPSL paper. … Read more…
Citation
Zahirovic, S., Seton, M., and Müller, R. D., (2014). The Cretaceous and Cenozoic tectonic evolution of Southeast Asia: Solid Earth (EGU).
Summary
Tectonic reconstructions of Southeast Asia have given rise to numerous controversies that include the accretionary history of Sundaland and the enigmatic tectonic origin of the Proto South China Sea. We assimilate a diversity of geological and geophysical observations into a new regional plate model, coupled to a global model, to address these debates.
Our approach takes into account terrane suturing and accretion histories, the location of subducted slabs imaged in mantle tomography in order to constrain the evolution of regional subduction zones, as well as plausible absolute and relative plate velocities and tectonic driving mechanisms. … Read more…
Citation
Flament, N., Gurnis, M., Williams, S., Seton, M., Skogseid, J., Heine, C., & Müller, R. D. (2014). Topographic asymmetry of the South Atlantic from global models of mantle flow and lithospheric stretching. Earth and Planetary Science Letters, 387, 107-119. dx.doi.org/10.1016/j.epsl.2013.11.017.
Abstract
The relief of the South Atlantic is characterized by elevated passive continental margins along southern Africa and eastern Brazil, and by the bathymetric asymmetry of the southern oceanic basin where the western flank is much deeper than the eastern flank. We investigate the origin of these topographic features in the present and over time since the Jurassic with a model of global mantle flow and lithospheric deformation. The model progressively assimilates plate kinematics, plate boundaries and lithospheric age derived from global tectonic reconstructions with deforming plates, and predicts the evolution of mantle temperature, continental crustal thickness, long-wavelength dynamic topography, and isostatic topography. … Read more…
Citation
Gibbons, A., Whittaker, J. and R. Dietmar Müller, (2013), The break up of East Gondwana: assimilating constraints from Cretaceous ocean basins around India into a best-fit tectonic model. Journal of Geophysical Research, 118, 1-15: doi:10.1002/jgrb.50079
Summary
Published models for the Cretaceous seafloor-spreading history of East Gondwana result in unlikely tectonic scenarios for at least one of the plate boundaries involved and/or violate particular constraints from at least one of the associated ocean basins. We link East Gondwana spreading corridors by integrating magnetic and gravity anomaly data from the Enderby Basin off East Antarctica within a regional plate kinematic framework to identify a conjugate series of east-west-trending magnetic anomalies, M4 to M0 (~126.7–120.4 Ma). … Read more…
Citation
Müller, R. D., Dutkiewicz, A., Seton, M. and Gaina, C. (2013). Seawater chemistry driven by supercontinent assembly, break-up and dispersal Geology. doi 10.1130/G34405.1.
Summary
Global oceans are known to have alternated between aragonite and calcite seas. These oscillations reflect changes in the Mg/Ca ratio of seawater, which control biomineralisation and the composition of marine carbonates and are thought to be caused by the time dependence of crustal accretion at mid-ocean ridge crests and associated high temperature mid-ocean ridge brine flux. Here we use global ocean basin reconstructions to demonstrate that these fluctuations are instead caused by the gradual growth and destruction of mid-ocean ridges and their relatively cool flanks during long-term tectonic cycles thus linking ocean chemistry to off-ridge low temperature hydrothermal flux. Early Jurassic aragonite seas were a consequence of supercontinent stability and minima in mid-ocean ridge length and basalt alteration. The break-up of Pangaea led to a gradual doubling in ridge length and a 50% increase in hydrothermal flux mainly through an enormous increase in ridge flank area, leading to enhanced alteration of basalt, lowered seawater Mg/Ca ratios and marine hypercalcification from 140 to 35 Ma. … Read more…
Citation
Shephard, G. E., Müller, R. D., & Seton, M. (2013). The tectonic evolution of the Arctic since Pangea breakup: Integrating constraints from surface geology and geophysics with mantle structure. Earth-Science Reviews, 124, 148-183. doi:10.1016/j.earscirev.2013.05.012
Summary
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 basins, the accretion of autochthonous and allochthonous terranes and associated deformation. This complexity is expressed in the uncertainty of plate tectonic models of the region, with the time-dependent configurations and kinematic history remaining poorly understood. … Read more…
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 models either have insufficient temporal coverage or fail to treat tectonic plates in a self-consistent manner. They usually consider the motions of selected features attached to tectonic plates, such as continents, but generally do not explicitly account for the continuous evolution of plate boundaries through time. … Read more…
