查询词典 Cretaceous

The former began to migrate toward fresh water environment in late Cretaceous,but portion of them still remained in sea water till late Eocene;the latter began to migrate toward fresh water in Paleocene and lost its records in sea water.

前者在晚白垩世开始向淡水环境迁移，但仍有部分留在海水中，一直延续到晚始新世；后者在古新世时开始迁向淡水，并在海水中失去记录。

There is a short time exposing facebetween them. At the contact, the Paleocene clastic rock of Zongshan Formation overliesdirectly on the latest Cretaceous shelf carbonate rock.

古新世的砂砾岩直接覆于晚白垩世的陆棚碳酸岩盐沉积之上，沉积的重大转变代表一次区域构造运动。

The Santee Coastal Reserve core, a 545 ft deep borehole in northeastern Charleston County, South Carolina, recovered sediments of Late Cretaceous, Paleocene, Eocene, and Quaternary age.

Santee海岸储藏岩心是从加州南部的查尔斯顿的545英尺深的钻井中采集的，代表白垩纪晚期、古新世、始新世和第四纪的沉积物。

The generic distributions in both modern and fossil times were outlined, and their distribution center, place and time of origin and the way of dispersal were discussed. An attempt was made to discuss early differentiation, geographical radiation and morphological evolution of the family on the background of paleogeography and paleoclimatology, tracing back as far as the Late Cretaceous and Early Tertiary.

作者试图回到遥远的晚白垩纪和旱第三纪，从描绘桦木科植物起源和早期分化的古地理和古气候背景入手，分析了在这种背景下桦木科植物所发生的空间辐射以及植物体本身所产生的形态进化，以求得对桦木科植物起源、散布和分化作出比较合理的解释。

The structural active period was between Jurassic with cretaceous, and stopped in the early Paleogene.

这是对前人观点的重要改进和补充，也对整个勒陷袖气勘探具有十分重要的意义。

The results indicate that the extension of the Hefei basin possibly started in the mid Early Cretaceous and lasted to the Paleogene.

结合同位素年代学资料综合分析认为，合肥盆地伸展活动的起始时间为早白垩世中期，持续至古近纪末。

Research on clay mineral s from the Jurassic-Cretaceous in Northeast of the "Eastern Plateau",China indicates that the change in clay mineral assemblage and content was related with paleoclimate,source and paleography,and IC did not vary with the depth of the stratum.

通过对"东部高原"东北部地区中侏罗统—白垩系中黏土矿物分析，结果显示黏土矿物的组合及含量变化能够较好反映当时的气候、物源以及古地理变化；同时，伊利石结晶度不具有随地层深度发生变化的规律。

The project will make full use of Cretaceous marine, terrestrial strata and paleontological records.

项目将充分利用中国大陆发育完好的白垩纪海相、陆相地层及古生物记录，通过松辽盆地白垩系科学钻探全岩芯取样和多学科综合研究的途径，着眼于厘定反映地质事件和气候变化的层位及标志和时间格架，解决高分辨率海、陆相沉积事件的精确对比，分析地层记录中气候标志和古生物类群的地理分布，集中研究陆地和海洋环境对同一事件的响应机制，重溯白垩纪地球表层系统重大地质事件过程及成因，探究陆相烃源岩大规模形成、陆地生物群更替与温室气候变化和碳循环之间的正/负反馈关系和机制等科学问题，为预测全球长时间尺度上的气候变化趋势提供科学依据。

The tectonic evolution history of Tianshan is an example. In the Triassic, it was once uplifted to form the mountains with thick molasse accumulation on both its sides, Junggar and Tarim Basins. Then it became a peneplain by the exposion and deplanation in the Jurassic, forming the widespread coal-bearing strata which can be correlated. From the Cretaceous to the Early Cenozoic, it was uplifted again, until the Quaternary to build huge mountains with two large sedimentary basins on both sides.

如天山山脉的构造演化，三叠纪天山曾经一度隆起成山，两侧的准噶尔和塔里木盆地中堆积了巨厚的磨拉石；侏罗纪时由於剥蚀夷平成为一个准平原，形成了广泛分布且可以对比的含煤岩系；从白垩纪到早新生代，它再度隆升，直至第四纪时形成雄伟的高大山系，两侧形成相应的大型沈积盆地。

The tectonic evolution of southern Junggar basin can be classified into seven stages: stage of intracontinental rift from middle Periman to late Late Carboniferous; stage of weak extension and peneplane from late Permian to early Triassic; stable depression stage in middle-late Triassic; maximal basin formation phase in the setting of weak extension in early-middle Jurassic; inactive depressed basin formation phase in thrust setting in middle-late Jurassic; stable depression stage in Cretaceous and Eogene; foreland depressed basin formation phase in thrust setting in Neocene and Quaternary.

准噶尔盆地南缘晚石炭世以来盆地构造演化可划分为七个演化阶段：晚石炭世—中二叠世陆内裂谷作用阶段；晚二叠世到早三叠世处于弱伸展-稳定坳陷作用阶段；中、晚三叠世准平原化作用阶段；早、中侏罗世为弱伸展背景下广盆形成阶段；中、晚侏罗世冲断背景下的坳陷盆地形成阶段；白垩纪到古近纪弱伸展背景下的稳定坳陷盆地形成阶段；新近纪—第四纪为冲断背景下的前陆坳陷盆地形成阶段。

Some even stop their car in the street to see what is happening!

有的甚至停止他们的车在大街上看到正在发生的事情！

HC1, which had the p-hydroxy in its stucture, could form steady ternary equilibrium system HC1-Zr-EDTA with [Zr(H2O)2EDTA].

半花菁染料HC1是一拥有邻二羟基酚型结构特征的染料分子，可与Zr-EDTA螯合物形成稳定的三元螯合物体系HC1-Zr-EDTA。