Reconstructing Palaeoarchaean microbial biomes flourishing in the presence of emergent landmasses using trace and rare earth element systematics
作者: Keyron Hickman-LewisBlandine GourcerolFrances WestallDaniela ManziniBarbara Cavalazzi
作者单位: 1Dipartimento di Scienze Biologiche, Geologiche e Ambientali (BiGeA), Università di Bologna, via Zamboni 67, I-40126 Bologna, Italy
2CNRS Centre de Biophysique Moléculaire, Rue Charles Sadron, F-45071 Orléans, France
3BRGM, F-45060 Orléans, France
4Centro Interdipartimentale Grandi Strumenti (CIGS), Università di Modena e Reggio Emilia, 213A via Giuseppe Campi, Modena, Italy
5Department of Geology, University of Johannesburg, PO Box 524, Auckland Park 2006, Johannesburg, South Africa
刊名: Precambrian Research, 2020, Vol.342
来源数据库: Elsevier Journal
DOI: 10.1016/j.precamres.2020.105689
关键词: Early lifeArchaeanBarberton greenstone beltMicrobial matsBiomesPalaeoenvironmental reconstructionLaser ablation ICP-MS
原始语种摘要: Abstract(#br)Palaeoarchaean cherts preserve the most ancient direct traces of life, but this palaeobiological testament is rarely assimilated into ecosystem or biome models. Trace and rare earth element plus yttrium (REE + Y) compositions reliably decode the palaeodepositional settings of these cherts, and thus constrain the environments within which early microbial life flourished. Herein, we present systematic comparisons between bulk inductively coupled plasma mass spectrometry (ICP-MS) of four fossiliferous cherts from the Barberton greenstone belt, South Africa (the 3.472 Ga Middle Marker horizon, 3.45 Ga Hooggenoeg H5c chert, 3.334 Ga Footbridge Chert, and ~3.33 Ga Josefsdal Chert), and in situ laser ablation (LA) ICP-MS transects through microbial laminations therein. Normalised...
全文获取路径: Elsevier  (合作)
影响因子:4.441 (2012)

  • systematics 分类学
  • flourishing 繁荣的
  • greenstone 绿岩
  • reconstruction 复原
  • ablation 剥蚀
  • presence 存在
  • emergent 紧急的
  • trace 痕迹
  • element 元素
  • microbial 微生物的