craton

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“
Typically, throughout the world, kimberlite fields, where the craton is favourable for diamond preservation, include both barren and diamondiferous intrusions.

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Definitions (2)

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  1. noun A large portion of a continental plate that has been relatively undisturbed since the Precambrian era and includes both shield and platform layers.

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Examples (6)

  • Typically, throughout the world, kimberlite fields, where the craton is favourable for diamond preservation, include both barren and diamondiferous intrusions. —  Marketwire - Breaking News Releases
  • According to the researcher, "for the carrying out of this work we applied different techniques of geochemical analysis, mineralogy and isotopic analysis of organic matter for the reconstruction of the paleoceanographic conditions which induced to the accumulation of organic matter in marine sediments (sapropels), its implications in the carbon cycle and, consequently, in the climatic variation in the Mediterranean area and in the African craton, the main source of nutrients of these sediments". —  innovations-report
  • Divided from the geologically stable East Antarctic craton by one of the largest active rift valleys on the planet with active volcanoes still building the Transantarctic Mountain range to the south and east (i.e. Terror, Erebus) of the valley, the 25-odd Km thick (thin) valley crust stretches (literally, i.e. a recent extension in the Bentley subglacial trench, only 21 Km thick) under the two major ice shelves, the Ross and Weddell. —  WordPress.com News
  • But Fipke knew that, 100 miles under those pipes, was a craton, a thick, old chunk of continental plate where diamonds form. —  How a Rogue Geologist Discovered a Diamond Trove in the Canadian Arctic
  • Kimberlite pipes are created when magma bubbles up through a craton, expanding and cooling on its way up. —  How a Rogue Geologist Discovered a Diamond Trove in the Canadian Arctic
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Etymologies (1)

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  1. German Kraton, from Greek kratos, power; see kar- in Indo-European roots.
 

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