Deep continental roots and cratons [PDF]
Nature, 2021 The formation and preservation of cratons—the oldest parts of the continents, comprising over 60 per cent of the continental landmass—remains an enduring problem. Key to craton development is how and when the thick strong mantle roots that underlie these
James Scott +2 more
exaly +9 more sources
Evolution of cratons through the ages: A time-dependent study [PDF]
Earth and Planetary Science Letters, 2020 The viscosity of cratons is key to understanding their long term survival. In this study, we present a time-dependent, full spherical, three dimensional mantle convection model to investigate the evolution of cratons of different viscosities.
Jyotirmoy Paul, Attreyee Ghosh
exaly +3 more sources
Seismic evidence for depth-dependent metasomatism in cratons [PDF]
Earth and Planetary Science Letters, 2018 The long-term stability of cratons has been attributed to low temperatures and depletion in iron and water, which decrease density and increase viscosity.
Thomas Eeken +2 more
exaly +4 more sources
Differences and Causal Mechanisms in the Lithospheric Thermal Structures in the Cratons in East China: Implications for Their Geothermal Resource Potential [PDF]
EnergiesThe thermal structure of the lithosphere is key to understanding its thickness, properties, evolution, and geothermal resources. Cratons are known for their low heat flow and deep lithospheric roots.
Yibo Wang, Hu Shengbiao, Shengbiao Hu
exaly +4 more sources
Convective Self‐Compression of Cratons and the Stabilization of Old Lithosphere
Geophysical Research Letters, 2023 Despite being exposed to convective stresses for much of the Earth's history, cratonic roots appear capable of resisting mantle shearing. This tectonic stability can be attributed to the neutral density and higher strength of cratons. However, the excess
Jyotirmoy Paul +3 more
doaj +2 more sources
Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +11 more sources
Crustal rejuvenation stabilised Earth’s first cratons
Nature Communications, 2021 Why Earth’s crust only started becoming widely preserved in the Eoarchaean, 500 Ma after planetary accretion, is poorly understood. Here, the authors document a shift to juvenile magmatic sources in the early Eoarchaean, linking crustal preservation to ...
Jacob A. Mulder +5 more
doaj +2 more sources
Intraplate deformation of Gondwana terranes and implications for the Wilson Cycle [PDF]
Scientific ReportsThe Wilson Cycle, a cornerstone of plate tectonic theory, describes the cyclical evolution of ocean basins from rifting and spreading to closure via subduction and continental collision and assembly.
Ana Fonseca, Johan De Grave
doaj +2 more sources
Imaging the Mantle Lithosphere below the China cratons using S-to-p converted waves
Tectonophysics, 2019 We used S-to-p converted waves from over a thousand seismic stations of the permanent Chinese National Seismic Network to study the large scale structure of the mantle lithosphere beneath the cratons in China.
Xiaohui Yuan, Mian Liu, Xuzhang Shen
exaly +2 more sources
Oxidation of Archean upper mantle caused by crustal recycling [PDF]
Nature Communications, 2022 The basalt V-Ti redox proxy indicates that both of the Archean ambient and modified mantle exhibit a ~1.0 log unit increase in their evolution for most cratons, possibly derived by widespread crustal recycling.
Lei Gao +6 more
doaj +2 more sources