Revised stratigraphy of the Blanchetown Clay, Murray Basin: age constraints on the evolution of paleo Lake Bungunnia
作者: S. McLarenM. W. WallaceB. J. PillansS. J. GallagherJ. A. MirandaM. T. Warne
作者单位: 1School of Earth Sciences, University of Melbourne, Vic, Australia
2Research School of Earth Sciences, Australian National University, ACT, Australia
3School of Life and Environmental Science, Deakin University, Burwood, Vic, Australia
刊名: Australian Journal of Earth Sciences, 2009, Vol.56 (2), pp.259-270
来源数据库: Taylor & Francis Journal
DOI: 10.1080/08120090802547074
关键词: Blanchetown Clayclimatelacustrine sedimentsLake BungunniamagnetostratigraphyNampoo MemberPlio-Pleistocene
原始语种摘要: Paleo Lake Bungunnia covered more than 40 000 km2 of southern Australia during the Plio-Pleistocene, although the age and origin of the lake remain controversial. The Blanchetown Clay is the main depositional unit and outcrop at Nampoo Station in far-western New South Wales provides the most continuous lacustrine section preserved in the basin. Here the Blanchetown Clay represents the maximum lake fill and comprises: (i) a basal well-sorted sand with interbedded clay (Chowilla Sand), representing initial flooding at the time of lake formation; (ii) a thick sequence of green-grey clay comprised dominantly of kaolinite and illite, with the apparently cyclic occurrence of illite interpreted to represent cool and dry glacial climatic intervals; and (iii) a 2.6 m-thick sequence of finely...
全文获取路径: Taylor & Francis  (合作)
影响因子:1.468 (2012)

  • Basin 水池
  • stratigraphy 地层学
  • constraints 系统规定参数
  • evolution 进化