Large meteorites pose a threat to lives and would change the
course of life evolution on Earth. The three proven large meteorite craters in
the world are Vredefort in South Africa, Sudbury in Canada, and Chicxulub in
Mexico. This article analyzes some
evidence of finding in the northern part of Ordos to propose a possible larger
crater than the above. A 325-km long arc-shaped Langshan uplift, a 15 km-deep
trench, chaotic strata and numerous thrust layers in the Langshan, abnormal
orientation of crystalline basement structures in the north of Ordos, Moho
uplift, and meteorite fragments presented in the northern part of the Ordos
Basin. All phenomena support a possible meteorite hit event that happened in
the northern part of the Ordos Basin during the Late Cretaceous period. The impact pushed the block of the north of
Ordos Basin northwestward, subduction after colliding with C~P granitoid in the
north and forming the trench.
Author(s)details:-
DING Yi
Hebei GEO University, Shijiazhuang, 050031, China.
Please See the book
here :- https://doi.org/10.9734/bpi/geserh/v2/3317
No comments:
Post a Comment