Yarlung Zangbo Ophiolite Fm
Period:
Cretaceous
Age Interval:
Early Cretaceous, (10)
Province:
Xizang (Tibet)
Type Locality and Naming
Yarlung Zangbo suture zone. Typical locality in Yenong village, Jiding, Sangya Couty, Yarlung Zangbo River, Tibet Autonomous Region. Names by Qian Dingyu, 1992, A special lithostratigraphic unit, Yarlung Zangbo Formation, Journal of Stratigraphy, 16(4): 277-281.
Lithology and Thickness
Ophiolite. Basic volcanic rocks, radiolarian siliceous chart (banded), diabase, gabbros, olivine diallaite and wheelie, and normal strata, stratified igneous rocks and non-stratified igneous rocks.
Lithology Pattern:
Volcanics
Relationships and Distribution
Lower contact
Unconformable with the underlying Xigaze Peridotite Fm (not Lexicon entry). Locally unconformity (thrust fault) over the Danga Fm
Upper contact
Conformable with the overlying Chongdoi Fm
Regional extent
GeoJSON
null
Fossils
Age
Age Span:
Beginning stage:
Barremian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
126.50
Ending stage:
Aptian
Fraction up in the ending stage:
0.5
Ending date (Ma):
117.30
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Wan Xiaoqiao