TY - JOUR
AU1 - Marcoux, Jean
AU2 - Girardeau, Jacques
AU3 - Fourcade, Eric
AU4 - Bassoullet, Jean-Paul
AU5 - Philip, Jean
AU6 - Jaffrezo, Michel
AU7 - Xuchang, Xiao
AU8 - Chengfa, Chang
AB - Abstract— The Lhasa Block (s.l.) is bounded to the South by the Tertiary Yarlung Zangbo suture zone and to the North by the terminal Jurassic/earliest Cretaceous Bangong Nu Jiang suture zone. Several tectonostratigraphic units have been recognized in the central-northern part of the Lhasa Block. These are from bottom to top : 1) a thick turbiditic series with a few lenses of allodapic limestones which have yielded an Aalenian — Bajocian foraminiferal assemblage. This series is tectonieally overlain by the Donqiao ophiolite; 2) the continental to shallow marine late Malm to lowermost Cretaceous Zigetang Formation which disconformably overlies the Donqiao ophiolite and 3) continental red detrital rocks or marine Early/Late Aptian boundary to Early Albian foraminifera-rich bedded limestones in which some volcanic rocks are locally interbedded.We discuss the palaeogeographical distribution and biostratigraphical meaning of some foraminifera  (Gutnicella cayeuxi (LUCAS), Palorbitolina fen<ícu/o™(Bl .LMKNBACIl), Praeorbitolina cormyi SCHROEDER and  Palor-bilolmoides hedini CHREREHI and  ScilKOKDK.lt) and their bearing on the radiometric age of the Aptian-Albian boundary.
TI - Geology and biostratigraphy of the Jurassic and lower cretaceous series to the north of the Lhasa Block (Tibet, China)
JF - Geodinamica Acta
DO - 10.1080/09853111.1987.11105148
DA - 1987-01-01
UR - https://www.deepdyve.com/lp/taylor-francis/geology-and-biostratigraphy-of-the-jurassic-and-lower-cretaceous-kMS5YzHnHb
SP - 313
EP - 325
VL - 1
IS - 4-5
DP - DeepDyve
ER -