cretaceous的例句大全

The Cretaceous rhyolite-porphyry is the main parent rock Of the deposit , extending inNE-orientation.

白垩纪流纹斑岩为其主要的成矿母岩,可能为 NE 向展布.

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At model is erected. ordos basin developed from Mid-late Triassic to Early Cretaceous, then, underwent reformation.

鄂尔多斯盆地发育于中晚三叠世-早白垩世, 晚白垩世以来为盆地的后期改造时期.

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As fossil evidences show, the fossil of taxus were found in the upper Cretaceous period.

根据化石研究表明, 红豆杉科的化石发现于上白垩世.

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The Late Jurassic-Early Cretaceous activity produced basaltic and basaltic andesitic lavas ( 146Ma, 137Ma), followed by gabbro intrusion ( 135Ma) and aplite dyke ( 129Ma).

侏罗纪末～早白垩世初的火山活动除有熔岩（146Ma，137Ma）喷出外，还发育有辉长岩侵入体（135Ma）和辉绿岩岩墙（129Ma）等次火山岩。

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The Upper Precambrian to Cretaceous of Central and Southern Arabian Peninsula

阿拉伯半岛中南部上前寒武系至自垩系地层分布及特征

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By the end of Cretaceous the marginal ocean basin began to close.

晚白垩世末洋盆开始闭合.

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The petrological-chemical analysis of clastic sedimentary rocks from Quantou Formation, Cretaceous indicates that their lithology mainly consists of arkose, shale and minor rock debris sandstone and greywacke by chemical classification of bulk elements.

通过对白垩系泉头组碎屑沉积岩岩石样品的岩石化学分析表明：主元素化学分类结果主要为长石砂岩、页岩，少量岩屑砂岩和硬砂岩；

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Jurassic System entered oil-generating stage in Late Cretaceous Period, and entered oil-generating peak in Tertiary Period.

侏罗系地层在晚白垩世开始进入生油期,第三纪时进入生油高峰,这时侏罗系地层经受的最高古地温为137℃.

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Corythosaurus lived 80 to 65 million years ago. That time was Cretaceous period.

冠龙生活在6500万~8000万年以前, 这个时候是白垩纪.

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The fault scarp in ground surface approximately is along the fault face that consists of Cretaceous sandstone and Archaean gneiss. The lime-stone rocks bed up against the coal.

断层陡坎与白垩系砂岩和太古界片麻岩之间的断层位置大致吻合。石为岩层紧靠着煤矿层。

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The main types of clastic sandstones are feldspathic litharenite and lithic arkose in the Cretaceous of the Songliao basin.

松辽盆地白垩系砂岩以长石岩屑砂岩和岩屑长石砂岩为特征。

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The web found recently dates to the Cretaceous period . At that time, dinosaurs walked the earth.

最近发现的这张蜘蛛网是白垩纪的, 那时候, 地球上还有恐龙在行走.

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This clam fossil is from the Cretaceous Period, approximately 100 million years ago.

这个蛤化石来自大约一亿年以前的白垩纪时期.

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Albertosaurus lived 76 to 74 million years ago. That time was called the late Cretaceous period.

阿尔贝塔龙生活在7400万~7600万年前, 这个时期是白垩纪晚期.

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The third stage is the Cretaceous fine-grained granite stocks and apophyses of mainly crustal source. They are formed by partial melting, remelting or anatexis of crustal materials dominated by sedimentary component.

第三期燕山晚期细粒花岗岩小岩体是由以沉积组分为主的地壳物质经部分熔融、重熔或深熔而成。

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The earliest known bird, Archaeopteryx, lived during the Jurassic, the period before the Cretaceous.

人类所知的最早的鸟类，始祖鸟，生活在白垩纪前的侏罗纪时代。

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The NWW-extending Cretaceous amphibolic diabase dikes are developed in Xiazhuang uranium ore field, Northern Guangdong province.

下庄铀矿田北西西向分布的白垩纪角闪辉绿岩构成区内基性脉岩的主体。

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Ankylosaurus lived 70 to 65 million years ago. That time was called the late Cretaceous period.

甲龙生活在6500万年~7000万年前, 这个时候是白垩纪晚期.

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The Maiasaura lived 80 to 65 million years ago. That time was called the Cretaceous period.

慈母龙生活在6500万~8000万年前, 这个时候是白垩纪晚期.

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Study on the weathering characteristics of Cretaceous argillaceous siltstone

湖南白垩系泥质粉砂岩风化特性研究

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