• Thumbnail for Greenstone belt
    Greenstone belts are zones of variably metamorphosed mafic to ultramafic volcanic sequences with associated sedimentary rocks that occur within Archaean...
    12 KB (1,366 words) - 04:09, 26 February 2024
  • greenstone belt Mauken greenstone belt Harris greenstone belt (Australia) Jack Hills greenstone belt (Australia) Norseman-Wiluna greenstone belt (Australia)...
    3 KB (283 words) - 02:18, 2 June 2023
  • Thumbnail for Geologic time scale
    of planet formation. Jack Hillsian or Zirconian Era/Erathem (4404–4030 Ma) – both names allude to the Jack Hills Greenstone Belt which provided the oldest...
    172 KB (9,395 words) - 04:29, 22 April 2024
  • Thumbnail for Yilgarn Craton
    mixture of sedimentary basins and Proterozoic fold and thrust belts. Zircon grains in the Jack Hills, Narryer Terrane have been dated at ~4.27 Ga, with one detrital...
    24 KB (3,249 words) - 09:33, 26 March 2024
  • Thumbnail for Oldest dated rocks
    latest research, either part of the Isua Greenstone Belt, Narryer Gneiss Terrane, Nuvvuagittuq Greenstone Belt, Napier Complex, or the Acasta Gneiss (on...
    18 KB (2,148 words) - 15:12, 26 March 2024
  • Thumbnail for Hadean zircon
    Jack Hills, Australia, scientists obtained a relatively comprehensive record of Hadean zircon crystals in contrast to other locations. The Jack Hills...
    44 KB (3,785 words) - 15:55, 27 September 2023
  • Thumbnail for Volcanism of Canada
    Swayze greenstone belt further south is interpreted to be a southwestern extension of the Abitibi greenstone belt. The Archean Red Lake greenstone belt in...
    136 KB (13,419 words) - 22:00, 23 April 2024
  • Renosterkoppies Greenstone Belt forms on the northern edge of the Kaapvaal Craton. c. 2,736 Ma – Formation of the Temagami Greenstone Belt in Temagami, Ontario...
    64 KB (7,668 words) - 13:29, 20 January 2024
  • belt. The Napier Mountains in Antarctica are of similar age. The Isua greenstone belt contains the oldest, well-preserved, supracrustals, dated at 3.8–3...
    3 KB (295 words) - 18:42, 22 July 2023
  • conglomerate in the Jack Hills of the Narryer Gneiss Terrane of Western Australia. The earliest supracrustals (such as the Isua greenstone belt) date from the...
    13 KB (1,261 words) - 09:15, 7 March 2024