cretaceous

副词：

副词: cretaceously

更多词形：

副词: cretaceously |

单词例句：

The new material from Quantou Formation is significant for better understanding the evolution and distributions of Sauropoda in the Cretaceous.

新属种的发现对进一步研究白垩纪蜥脚类恐龙的系统演化、古地理分布等提供了新的材料。

The subsidence of Sunjiawan episode in Middle Cretaceous are further transferred eastward, and the half graban defined by the fault F 1 was formed.

中白垩世孙家湾组的沉陷进一步向东侧移，形成了以F1断层为盆缘断层的半地堑；

ZHOU Zhong-he.Discovery of a new enantiorithine bird from the Early Cretaceous of Liaoning,China[J].Vertebrata PalAsiatica,1995,33(2):99-113.

[19]周忠和.辽宁早白垩世一新的反鸟化石[J].古脊椎动物学报,1995,33(2):99-113.

The coiled, flat, chambered fossil shell of an extinct mollusk belonging to the class Cephalopoda, which was abundant in the Cretaceous period.

菊石，鹦鹉螺化石已灭绝软体动物的螺旋形、扁平的化石外壳，属头足纲动物，大量存在于中生代

The TuanJie Mountain Copper-gold mine occurred in litmusless and acidic lava around Pacific Ocean in lower of Cretaceous.

团结山金铜矿位于环太平洋金成矿带西侧,完达山活动带南端的同江-虎林岩石圈断裂与大和镇壳断裂的交汇处。

Abstract： The reservoir rocks of Lower Cretaceous Fuyu and Yangdachenzi unites wrer deposited in channels on the deltaic flood plain in Sanzhao area.

摘 要： 三肇地区下白垩统扶余和杨大城子油层储集岩主要为具有较高杂基含量的岩屑长石细砂岩和长石岩屑细砂岩。

These dinosaur footprint fossils formed in the Jurassic or early Cretaceous era, since there are more than 1.7 billion years of history.

这些恐龙足印化石形成于侏罗纪或早白垩纪时代，距今已有1.7亿年以上的历史。

There exists high risk for oil-gas resource exploration owing to the low study of sedimentary characteristics of Cretaceous in Jiyang depression.

摘要济阳坳陷白垩系沉积特征的研究程度较低，使得这一层位的油气资源勘探存在较大风险。

The Songliao rift basin refers to the basin developed by crustal extension in Songliao region during Late Jurassic to Early Cretaceous period.

松辽裂陷盆地指松辽地区晚侏罗世至早白垩世期间发育的盆地，因地壳伸展而产生。