Comment on “Using a modern analogue to interpret depositional position in ancient fluvial-tidal channels:Example from the McMurray Formation,Canada” by Andrew D.La Croix,Shahin E.Dashtgard,James A.MacEachern,Geoscience Frontiers,Volume 10,Issue 6,Pages 2  

作　　者：Paul R.Durkin Sean C.Horner Cynthia A.Hagstrom 

机构地区：[1]Department of Geological Sciences,University of Manitoba,Winnipeg,MB,Canada [2]Department of Geoscience,University of Calgary,Calgary,AB,Canada [3]CNOOC International,Calgary,AB,Canada

出　　处：《Geoscience Frontiers》2020年第3期1081-1086,共6页地学前缘（英文版）

摘　　要：1.Introduction La Croix et al.(2019)attempt to interpret the depositional position of the Lower Cretaceous McMurray Formation"A Valley"deposits using the tidally-influenced Fraser River in British Columbia as a modern analogue.Analysis of a portion of seven cores from three study areas(South,Central,and North)positioned along a 145-km basinward transect suggests that observed sedimentological and ichnological trends are indicative of a time-equivalent fluvial-tidal transition(FTT)zone within the"A Valley".

关 键 词：tidal FLUVIAL DEPOSITIONAL 

分 类 号：P512.2[天文地球—地质学] P343.1