late cretaceous

基本解释

"The ancient drainage systems are thought to have originated in the wet climate of the late Cretaceous, they are that old, " Hutchinson said.
Hutchinson说，这些古老的排水系统是在白垩纪晚期为了应付潮湿的气候而被想到的，它们已经是这样的久远。
This story, though, raises the question of why there is but a single ejecta layer of iridium and shocked quartz in late Cretaceous rocks around the world.
然而，查特基博士的说法引发了疑问：为什么全球白垩纪晚期岩石中含有冲击石英和铱的喷发物地层只有一层？答案或许是，两次撞击是在同时发生的。
Among its prey would have been insects, small mammals, amphibians and possibly small dinosaurs that lived in the swamps and forests of the late Cretaceous.
它所能捕食的猎物包括昆虫、小型哺乳动物、两栖动物以及可能生活在沼泽和森林后白垩纪的小型恐龙。

These creatures lived more than sixty-five million years ago, during Earth's late Cretaceous period.
Scientists say it formed when high sea levels flooded the middle of North America, splitting the continent in two for millions of years during the late Cretaceous period.
The Tyrannosaurus lived in North America during the late Cretaceous Period.

One confounding factor is that the late Cretaceous was also a period of great volcanic activity.
ECONOMIST: Mass extinctions

晚白垩世
The thermodynamic subsidence was the genetic mechanism of the late cretaceous basin with river-lake deposition system in some aera.
晚白垩世,仅在少数地区发育河流—湖泊沉积体系,属热沉降坳陷盆地。
白垩纪
From the late Cretaceous period to Oligocene, it happened the first of uplift in the Qingzang plateau in the condition of squeezing between India plate and euroasia plate. The speed of uplift was very slow.
藏北地区青藏高原自白垩纪以来发生了三次较大的隆升和两次夷平作用,在此过程中并伴随着相应的环境变化:①白垩纪末期—渐新世是青藏高原第一期隆升阶段,由于印度板块持续向北逆冲,白垩纪末期青藏高原开始了第一阶段的缓慢隆升,在测区内表现为沱沱河组的类磨拉石碎屑岩沉积。
生物学
晚白垩世
Placenticeras was widely distributed in the world during the late Cretaceous.
糕菊石是晚白垩世世界范围内分布的属。其化石有重要的地层学价值。