查询词典 cretaceous

The garnets in Cretaceous sandstones come from blueschist that located in the southwest Tianshan and low-grade metamorphic rocks by lager proportionally. The garnets in Tertiary sandstones enrich almandine, which come from high-grade metamorphic rocks.

白垩系砂岩中的石榴石来自西南大山蓝片岩和低级变质岩的比例较大，而第三系砂岩中的石榴石中富铁铝榴石组分，多来自高级变质岩。

The acid volcanic rocks of the Early Cretaceous Shangkuli Formation belong to continental crust anatexis type ones (S-type volcanic rocks) and may have formed by compression and migration of the Indian-Australia plate toward the NNE and delamination of the lower crust caused by the lithospheric extension in eastern China.

早白垩世上库力组酸性火山岩属陆壳重熔型火山岩，其形成可能与印度澳大利亚板块朝北偏东方向推挤运移、中国东部岩石圈拉张引起的下地壳拆沉作用有关。

Sixteen ( 15 new) amphibian and twenty-two ( 11 new) squamate species have been reported across China, including the oldest Chinese tetrapod Sinostega pani from the Late Devonian of Ningxia Hui Autonomous Region, the large stereospondyl amphibian Yuanansuchus laticeps from the Middle Triassic of Hubei Province, Late Jurassic/Early Cretaceous lissamphibians ( e. G., the anurans Callobatrachus sanyanensis and Mesophryne beipiaoensis, the caudates Jeholotriton paradoxus and Laccotriton subsolanus) from Northeast China, Paleogene lizards (e. G., Brevidensilacerta xichuanensis and Tinosaurus yuanquensis) from North China, and numerous lizards from the Late Cretaceous of Nei Mongol Autonomous Region.

共报道了16种两栖类和22种有鳞类，其中15种两栖类和11种有鳞类为新种，包括我国最古老的四足动物宁夏晚泥盆世的潘氏中国螈，湖北中三叠世的大型全椎两栖类宽头远安鲵，东北晚侏罗世/早白垩世的多种滑体两栖类(如无尾类三燕丽蟾和北票中蟾，有尾类奇异热河螈和东方塘螈)，华北古近纪的蜥蜴类(如淅川短齿蜥和垣曲响蜥)，以及内蒙古晚白垩世的多种蜥蜴类等。

The event of collision between Lasha block and Qiangtang block in Cretaceous was too weak to cause the regional tectonic effect, but only produced a little relief topograph and Cretaceous red classic deposit in Central Asia.

拉萨陆块与羌塘陆块白垩纪的碰撞本身表现并不强烈，当然也难以产生区域性的构造影响，只是在准平原化基础上产生一些地形微起伏，出现白垩纪红色碎屑岩沉积。

Through the age analysis on apatite and zircon fission track, there have five stages of tectonic movements, respectively occurred in late Trias, from mid-late period in early Cretaceous to late Cretaceous, Eocene, Oligocene and Miocene.

通过对盆地内磷灰石和锆石年龄分析，焉耆盆地存在5期构造运动：晚三叠世、早白垩世中晚期-晚白垩世、始新世、渐新世和中新世。

Evolution history of Jianghan Basin can be divided into Seven stages by sedimentary character since Cretaceous: uplifting and decomposing stage (lower-middle Cretaceous), whole downfaulting stage , regional subsiding stage , uplifting and decomposing stage , differential downfaulting , shinking-subsiding-uplifting and denudating , subsiding stage , differential elevating and subsiding-stabilizing stage (lower Pleistocene-early stage of middle Pleistocene), whole subsiding stage (middle stage of middle Pleistocene), shringking stage (upper Pleistocene-Holocene).

通过对江汉盆地白垩纪以来沉积特征的分析认为，江汉盆地的整体演化可以分成七个阶段，分别为：拱升张裂、整体断陷、区域坳陷、拱升张裂、分化断陷、萎缩坳陷—上升剥蚀、坳陷阶段、差异升降—稳定阶段（早更新世—中更新世早期）、整体坳陷阶段（中更新世中期—晚更新世）、萎缩阶段。

The sedimentary characteristics in Xuefeng area suggested that Xuefeng experienced complex vicissitudes of uplift-depression from Sinian to Cretaceous, it can be divided into five stages, including carbonate slope-shelf basin in Early Sinian-Middle Ordovician, uplifting and denuding in Late Ordovician-Late Carboniferous, carbonate platform in Permian, carbonate shelf in Early Triassic, uplift and intermountain basin in Middle Triassic-Cretaceous.

雪峰及其周缘地区的地层沉积特征则表明，震旦纪-白垩纪雪峰地区经历了复杂的隆凹变迁历程，可概括为五大阶段，分别为早震旦世-中奥陶世的碳酸盐斜坡-陆棚-盆地阶段、晚奥陶世-晚石炭世的隆起剥蚀阶段、二叠纪的碳酸盐岩台地阶段、早三叠世的碳酸盐陆棚阶段和中三叠世-白垩纪的隆起-陆相山间盆地阶段。

The results are shown as below.1 Tectono-thermal evolution: The history of the Songliao basin is divides into four stages, high-temperature doming and extension, high-temperature rifting, low-temperature depression, and low-temperature shrinkage. Numerical simulation of mechanical process shows that the basin appeared in the early- to late- Jurassic as a result of rapid low-angle subduction of the Pacific plate towards the northwest, of movement of the Siberian block towards the southeast, of many other influences such as internal thermal stress in the mantle, gravitational force, stress of phase transition, etc. 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.

盆地构造热演化力源机制数值模拟研究表明：早、中侏罗世至晚侏罗世晚期，盆地演化主要是太平洋块体向北西方向以低角度快速俯冲和西伯利亚块体向东南俯冲共同作用的结果，同时也与地幔内部热力、重力、相变力以及地球自转及公转速度变化效应和上覆块体绝对运动的作用有关；早白垩世早期至早白垩世中期，来自东部太平洋块体俯冲作用的减弱，而这一时期影响盆地演化的主要力源是地幔内部热力、重力、相变力以及地球自转及公转速度变化效应和来自西伯利亚块体俯冲作用；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，而本区地幔热能的快速衰减则控制盆地的构造热演化；晚白垩世晚期以后，太平洋块体活动加强和地幔热运动是影响盆地演化的主要动力。

However there are regional inversion uplifts in the Late Jurassic-Early Cretaceous basins and the Late Cretaceous basins.

而是表现为晚侏罗—早白垩世盆地和晚白垩世盆地的区域性反转隆升。

Based on analysis for paleostructural characteristics of above four areas,the paper proposed that there developed a series of paleostructure belts under the background of regional uplifting in latest Mesozoic at the front of south Qilian Mt,and those paleostructures are characterized by NWNNWstriked anticlines and synclines,whose wavelengths are 15～20 km and middlescaled. At the same time,the paper also points out that most areas in western China are lack of upper Cretaceous,which implies the existence of a broad Late Cretaceous plateau in central Asia.

通过这4个地区古构造特征的研究，提出南祁连山前区中生代晚期在区域性隆升的背景下，形成了一系列古构造带，古构造活动的特点是形成北西-北北西走向的背斜和向斜构造，这些褶皱的波长为15～20 km，为中尺度规模。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。