这些地质形成日期中生代时期，当层沉积的石灰岩积累下的水。
These geologic formations date to the Mesozoic era, when layers of sedimentary limestone accumulated under water.
侏罗纪时代图片集。一只古生异龙践踏通过一个中生代时期的森林在这方面艺术家的写照。
Photo Gallery: Jurassic Period An Allosaurus tramps through a Mesozoic-era forest in this artist's depiction.
新生代构造现象既是中生代时期构造作用的延续，也是始新世以来复杂应力环境作用的结果。
The tectonic phenomena happened in the Cenozoic are caused by both of the continuity of the Mesozoic tectonic processes and the complexity of Cenozoic stress field.
早古生代时期的喷气喷流型矿床组合和晚古生代—早中生代时期的造山型矿床组合最为重要。
The exhalation-spout type deposits of the early Paleozoic era and the orogenic type deposits of the late Paleozoic to early Mesozoic era are the most important deposit groups.
大别山在中生代时期的造山运动是由于华北地块和扬子地块继晚元古代之后再次发生碰撞活动而发生的。
The orogeny of Dabie mountain was resulted from collision between the North China and Yangzi massifs in early Mesozoic. The tectonic evolution of Dabic orogenic bolt underwent two stages.
恐龙一种，主要生活在中生代时期的陆栖动物，是庞大的食肉或食草爬行类动物，属龙盘目与鸟盘目，已绝种。
Dinosaur, any of various extinct, often gigantic, carnivorous or herbivorous reptiles of the orders saurischia and ornithischia that were chiefly terrestrial and existed during the Mesozoic era.
幔源岩浆的底侵及软流圈对地壳的直接加热作用，使上覆地壳发生大规模的岩浆和成矿作用，并导致中国东部中生代时期伸展构造的广泛发育。
The heating from the asthenosphere on the crust subsequently resulted in the intensive magmatism, mineralization, and widespread development of extensional structures in eastern China.
显生宙可划分为三个时期——依次经历古生代、中生代和新生代。
The Phanerozoic is divided into three eras — starting with the earliest, these are the Paleozoic, Mesozoic, and Cenozoic.
显生宙可划分为三个时期——依次经历古生代、中生代和新生代。
The Phanerozoic is divided into three eras -starting with the earliest, these are the Paleozoic, Mesozoic, and Cenozoic.
古生代是地质时期的一个时代，从前寒武纪末开始，到中生代初，大约从5.7亿年前到2.25亿年前。
An era of geologic time, from the end of the Precambrian to the beginning of the Mesozoic, or from about 570 to about 225 million years ago.
中生代是地质时期的第二个大时代，从大约2.25亿年前的古生代末延续到约7千亿年前的第三纪初。
The second major era of geological time which lasted from the end of the Palaeozoic era about 225 million years ago, to the start of the Tertiary, some 70 million years ago.
中生代是地质时期的第二个大时代，从大约2.25亿年前的古生代末延续到约7千亿年前的第三纪初。
The second major era of geological time which lasted from the end of the Palaeozoic era about 225 million years ago, to the start of the Tertiary, some 70 million years ago.
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