ABSTRACT Non-marine dinoflagellate fossil of middle cretaceous is very rare in the world.
中白垩世非海相沟鞭藻化石在世界上极为罕见。
The subsidence of Sunjiawan episode in Middle Cretaceous are further transferred eastward, and the half-graben defined by the fault F1 was formed.
中白垩世孙宗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；
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.
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，而本区地慢热能的快速衰减则控制盆地的构造热演化；
The Middle Cretaceous shallow sea sediments, represented by a series of light dark gray marine clastic and carbonate rocks, were well exposed along the Gongzha Section in Tingri, southern Tibet.
藏南定日地区在白垩纪中期发育一套浅灰色深灰色的以钙质页岩、泥灰岩及微晶灰岩为主的浅海陆棚相沉积，岩石中除含较高的粘土矿物及陆源石英矿物颗粒以外，还含有十分丰富的有孔虫化石。
It can be concluded that the Cretaceous groundwater Basin can be divided into local groundwater system, middle groundwater system and regional groundwater system.
结果表明，盆地地下水系统可以分为局部地下水系统、中间地下水系统和区域地下水系统。
Sedimentary characteristic analysis shows that sedimentation ply thick and acreage amplitude of middle and lower parts of Cretaceous have better hydrocarbon source rock.
沉积特征分析表明，在没有钻井揭示的白垩系中、下部，其油气潜力有可能比泰州组更加可观，是很好的烃源岩。
The Cretaceous confined water is an important water source in Siping city, which contains middle water capacity.
白垩系承压水是四平市重要的供水水源地，水量中等。
Middle stage of Early Cretaceous-Late Cretaceous.
早白垩世中期—晚白垩世。
The age of the Fuding Formation and the Shimaoshan Group may be assigned to middle-late early Cretaceous and early late Cretaceous respectively.
福鼎组和石帽山群的时代应分别为早白垩世中、晚期和晚白垩世早期。
A number of suites of Carboniferous, middle-lower Jurassic and lower Cretaceous hydrocarbon source rocks were developed in the basin groups in the Paleo-Asian and Tethyan structural confluence area.
古亚洲与特提斯构造交汇带盆地群发育石炭系、侏罗系（中下统）、白垩系（下统）等多套烃源岩，具有厚度大、分布广、有机质丰度高的特点。
Basin evolution in ne China goes through four stages: early Jurassic rift basin, middle-late Jurassic partitioned foreland basin, late late Jurassic-Cretaceous rift basin and Cenozoic rift basin.
东北地区中新生代盆地演化经历早侏罗世裂陷盆地、中晚侏罗世分割式前陆盆地、晚侏罗世末期至白垩纪裂谷盆地及新生代裂谷盆地四个演化阶段。
Permo Carboniferous coal series have relative good coal gas potential, dark mudstones in lower Jurassic, lower part of Middle Jurassic and lower Cretaceous are the best source rocks.
区内石炭—二叠纪煤系具有良好的煤型气及一定的煤层气潜力，中、下侏罗统和下白垩统暗色泥岩类是最具生油潜力的烃源岩系。
On the southwestern margin of the basin there occur middle Yanshanian Late Triassic and Early Cretaceous coarse clastic molasse-like deposits and angular unconformity.
在盆地西南缘发育燕山中期的晚侏罗世和早白垩世的粗碎屑类磨拉石建造及其地层间的角度不整合。
The second and third row structure exist the middle-turn low and mature Jurassic oil-gas from Cretaceous-Jurassic floors.
第二、三排构造存在白垩系—下第三系中转侏罗系低成熟—成熟油气的特征。
The strata of Mesozoic and Cenozoic in the basin can be divided into three parts, Middle Jurassic (Longjiagou Formation ), Lower Cretaceous and Upper Miocene (Baode Formation ).
根据化石组合，龙家沟盆地的地层可划分为中侏罗统龙家沟组，上白垩统及上中新统保德组。
The Middle-Lower Jurassic to the west of Ejin Qi-Alxa Youqi, and the Lower Cretaceous in the northwest part of the corridor, Zongnan and Zongbei De-pressions have better oil potential.
额济纳旗-阿拉善右旗一线以西的中下侏罗统、走廊坳陷北段及宗南、宗北诸坳陷的下白垩统含油气远景较好。
In some of the faulted basins of the Mesozoic to Cenozoic ages in Heilongjiang Province, the Middle Upper Jurassic, Lower Cretaceous and Teritary auriferous conglomerate are most widespread.
黑龙江省一些中—新生代断陷盆地内，中、上侏罗统、下白垩统及第三系砾岩含古砂金较为普遍。
Therefore, the Lower-Middle Jurassic is selected as the main target horizon for sandstone-hosted uranium deposit, and the Lower Cretaceous as the minor one.
因此，将中下侏罗统确定为本区的主要找矿目标层，下白垩统为次要找矿目标层。
Mineral , palaeontology , middle devonian , permian to early jurassic , and cretaceous.
收藏矿物、古生物学、中泥盆纪、二叠纪到早期的侏罗纪和白恶纪。
During Late Triassic to Early Jurassic, Marine sediments formed (sallow_bay facies or alternating continent_marine facies), and only continental facies deposited during Middle Jurassic to Cretaceous.
上三叠统—下侏罗统有海相地层(浅海海湾相或海陆交互相碎屑岩)分布，而中、上侏罗统及白垩系为陆相地层。
In these process of evolution, it deposited mainly hydrocarbon source rocks of lacustrine facies in the Early Cretaceous and secondary coal measures source rocks in Early-Middle Jurassic.
主要形成了下白垩统半深湖相烃源岩，其次为中下侏罗统煤系烃源岩。
In Hunan province, it took place in the period between early-middle stage and late stage of late Cretaceous epoch. Its structural features are angular disconformity or paraconformity.
湖南晚燕山运动发生于晚白垩世中早期与晚白垩世晚期之间，其构造形迹为角度不整合及假整合关系。
The Fangshan granodiorite pluton of Lower Cretaceous occupies the middle of core.
核部有强力侵位的早白垩世的房山花岗闪长岩株。
The middle scale Huangchengshan silver deposit, prospected and appraised in the recent years, is located in Mesozoic lower-Cretaceous volcanic and subvolcanic rock.
皇城山银矿床是近年勘查评价出的一处中型低温银矿床。
The Mesozoic primary hydrocarbon accumulation has been heavily damaged by the denudations at latest middle Jurassic and latest Cretaceous and the faulting from Paleocene to Eocene.
中侏罗世末期、白奎纪末期的 地层抬升 剥蚀，以及古-始新世的断裂活动对中生代形成的原生油气藏破坏作用明显。
The Mesozoic primary hydrocarbon accumulation has been heavily damaged by the denudations at latest middle Jurassic and latest Cretaceous and the faulting from Paleocene to Eocene.
中侏罗世末期、白奎纪末期的 地层抬升 剥蚀，以及古-始新世的断裂活动对中生代形成的原生油气藏破坏作用明显。
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