Geology of the Eoarchean, ><ce:hsp sp="0.10"/>3.95<ce:hsp sp="0.25"/>Ga, Nulliak supracrustal rocks in the Saglek Block, northern Labrador, Canada: The oldest geological evidence for plate tectonics
作者: Tsuyoshi KomiyaShinji YamamotoShogo AokiYusuke SawakiAkira IshikawaTakayuki TashiroKeiko KoshidaMasanori ShimojoKazumasa AokiKenneth D. Collerson
作者单位: 1Department of Earth Science and Astronomy, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo 153-8902, Japan
2Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro, Tokyo 152-8551, Japan
3School of Earth Sciences, The University of Queensland, Brisbane, Qld, Australia
4HDR, 82 Eagle Street, Brisbane, 4000 Queensland, Australia
刊名: Tectonophysics, 2015, Vol.662 , pp.40-66
来源数据库: Elsevier Journal
DOI: 10.1016/j.tecto.2015.05.003
关键词: EoarcheanSupracrustal rocksAccretionary complexOcean plate stratigraphyPlate tectonics
原始语种摘要: Abstract(#br)The Earth is a unique planet, which has been highly evolved, diversified and complicated through geologic time, and underwent many key events, including giant impact, magma ocean, core formation, large-scale mantle differentiation and late heavy bombardment, especially in its dawn. But, our knowledge of early Earth is limited due to the lack of the Hadean supracrustal rocks. The supracrustal rocks with the Eoarchean ages provide key evidence for the Earth's early evolution, but few supracrustal rocks have been comprehensively investigated. Therefore, we mapped in seven areas of the Saglek Block, northern Labrador, where ancient supracrustal sequences are interleaved with a diverse assemblage of orthogneisses. Early studies suggested that some of them have the Mesoarchean ages...
全文获取路径: Elsevier  (合作)
影响因子:2.684 (2012)

  • northern 北方的
  • geological 地质的
  • Ga 
  • tectonics 构造地质学
  • accretionary 生长的
  • Canada 加拿大
  • mafic 镁铁质的
  • ophiolite 蛇绿岩
  • dating 年代测定
  • consist 包含