查询词典 cretaceous

The Cenozoic activities are dominated in the southern segmentation,with strongly tectonic uplifting and reworking. But the northern segmentation is hosted by Cretaceous uplift?exhumation,with denudating and weakly tectonic reworking in Cenozoic time.

南段是新生代活动的主控区，以强烈地构造抬升和构造改造为主，而北段总体上受制于白垩纪的抬升-剥露，新生代以来主要表现出剥蚀和弱构造改造的特征。

As the northern boundary of the North Dabie complex unit, the motion of the Xiaotian-Mozitan fault in the Early Cretaceous can be used to understand evolution of the North Dabie complex unit during doming.

晓天－磨子潭断裂是北大别杂岩带的北部边界，其早白垩世构造活动型式可以为北大别带穹隆演化过程提供制约。

If the tectonic uplift is not considered, the relief of Dabie orogen will reach at least 3km in Late-Cretaceous. As to the value of the relief reduction factor in Dabie orogen at 90Ma, the largest value appeared in northeast region, followed consecutively by the core and southeast Tanlu fault zone, with the smalleast value appeared in northwest and southwest region. The results reflect the strong uplift difference between core and North Huaiyang flank in Dabie orogen during doming extension period. Relief in the core region and southeast Tanlu fault zone is higher than those in the peripheral regions, northwest and southwest flanks are more stable than other regions.

如果不考虑构造抬升，大别造山带在晚白垩世地形起伏至少可达3km.90Ma时大别造山带地形起伏变化率在空间上呈现如下特征：东北区块最大，热窿核部其次，东南郯庐断裂区块再次，西北、西南区块最小，反映大别造山带热窿伸展期，核部与北淮阳翼之间强烈差异隆升，核部地形和东南郯庐断裂区块起伏高于周边地区，西北、西南两个翼部比其他地区稳定。

China Craton were emplaced in early-middle Jurassic and early Cretaceous, respectively, identical to the geochronological framework in NE China.

东北是我国显生宙花岗岩极为发育的地区，但分布的20余万平方公里的花岗岩的时代问题一直存在争论。

A number of geological and mineral composition and geochemical investigations indicate that the deep geodynamics process and mantle characteristics of middle Jurassic gabbros suits from south Jiangxi province are distinguish from Cretaceous gabbros suits from coastal belt of Fijian province, the former are related to mantle upwelling and lithosphere extension, the later are related to subduction and lie on back-arc basin in tectonic environment.

对赣南车步辉长岩类的地质特征、矿物学和地球化学特征进行了研究，着重讨论它与沿海辉长岩类构造环境和源区性质的不同，研究表明它可能是中国东南部中侏罗世软流圈上涌、岩石圈伸展和地壳裂解的产物，而沿海白垩纪辉长岩类的构造环境是弧后拉张盆地；车步辉长岩类的源区可能是未受到明显俯冲组分影响的富集地幔，而沿海白垩纪辉长岩类的源区可能包含较多俯冲组分。

And when you wonder how much longer the film can go on without showing dinosaurs, T-Rex finally relents and goes back to the Cretaceous.

当你在怀疑到底还有多久才能看到恐龙的时候，霸王龙突然出现并带你回到了白垩纪时代。

The superimposition of the Cretaceous basin would have created the geological conditions for secondary hydrocarbon generation of the source rocks and late reservoiring.

乐探1井油藏的原油经油源对比为典型的树皮煤生成的煤成油，表明在中国南方保存条件较好的地区龙潭组煤成油的勘探前景良好。

Lower Cretaceous belong to retrograding sedimentary sequence of tide-flat-carbonate platform facies,and have good hydrocarbon source rock and reservoir rock but no good cap rock.

下白垩统属退积的潮坪—碳酸盐岩台地沉积序列，生、储油层发育，但盖层发育相对较差，有可能在靠近改则—尼玛断裂带附近形成一些与逆冲断层有关的小型油气藏。

The Jianghan basin is a Cretaceous-Paleogene rifted basin developed on Yangtze paraplatform and also a typical continental petroliferous basin containing salt layers.

江汉盆地是在扬子准地台上发育起来的白垩系—古近系断陷盆地，也是我国陆相盆地中典型的含盐含油气盆地。

The Lower Cretaceous Yingcheng Formation in which the volcanic rocks are high in content and widely distributed was developed at the late stage of rifting.

徐家围子断陷是松辽盆地内的一个较大的中生代断陷，下白垩统营城组发育于断陷晚期，分布面积广，火山岩发育。

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。