辽西地区早白垩世早期义县组以产出精美的热河生物群而闻名于世，热河生物群研究的每一个重要进展都引起国内外科学家的极大关注。
The Yixian Formation becomes world well-known by fancy Jehol bita fossils, each signify headway of bita research would bring both here and abroad scientists' attention.
福鼎组和石帽山群的时代应分别为早白垩世中、晚期和晚白垩世早期。
The age of the Fuding Formation and the Shimaoshan Group may be assigned to middle-late early Cretaceous and early late Cretaceous respectively.
进入早白垩世晚期至晚白垩世早期，由于双重俯冲带中西侧俯冲作用带基本停止活动，而本区地慢热能的快速衰减则控制盆地的构造热演化；
Both the Pacific plate and the Siberian block slowed down in the early Cretaceous, and almost stopped in the middle Cretaceous with the rapid decrease of abnormal heat in the mantle below.
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