Although application of activity of 210pb in determining age of sediments of estuarine and coastal environment is very difficult , it provides important information about sediment environment and hydrodynamic . supported by gis , quantitative changes of erosion and deposition of the xinqiao channel are calculated . these results combing sediment characteristics of vertical profile illustrate the formation mechanism and evolution process 将~ ( 210 ) pb放射性测年方法应用于河口海岸环境时需慎重，虽然由于活度的变化无法准确确定垂向沉积物的沉积年代，但仍可给我们提供沉积物沉积时环境和水动力变化的信息。
Benthic foraminifer fauna , ams14c dating and acoustic sub - bottom profile was analyzed in the core ey02 - 2 and ey02 - 1 drilled from the muddy deposit in the middle southern yellow sea and the mid - shelf of north east china sea . considering the results of core qc2 ? dz4 and the standard oxygen isotope curves , we discussed the late - quaterenary paleo - environment evolution , benthic foraminifer fauna , paleo - climate , the climate events and water mass in postglacial period , average sedimentation rates , paleo - water depth , origin of sediments , average sea level rise rate in the shelf of south yellow sea and east china sea . at last we discussed the condition of sea level rise in the east china , green house effect and the protection of coastal zone 本文根据南黄海中部泥质区和东海中陆架的两个钻孔岩芯的古生物、 ams ~ ( 14 ) c测年、浅地层剖面等，参考qc _ 2 、 dz _ 4成果及标准氧同位素曲线探讨了黄东海陆架晚第四纪古环境演化、底栖动物群特征、古气候、冰后期以来气候事件、古水团、沉积速率、古水深、沉积物源、海平面平均上升率，讨论目前中国东部海平面上升的状况、温室效应及海岸带保护。
A time scale of the sample sn has been reconstructed by a polynomial fitting with 9 dated ages and further tested by annual band counting results . in general , the fitting polynomial line is consistent with the annual band growth rate except for that the bottom part of the stalagmite ( a height between 196 to 255mm from the top ) 石笋sn通过9个~ ( 230 ) th年龄的多项式拟合建立年代序列，利用清晰可数年层段检验表明，除底部( > 196mm )外其它时段基本吻合； bf1结合~ ( 230 ) th年龄和年层计数法定年，年层计数结果表明定年在测年误差范围之内。
They contain rich volcanic rocks and minerals by which reliable iso - chronic data can be got , possess successive sandstone and mudstone by which accurate magneto - stratigraphic columns can be set up and distinguish geological events , and also contain a large number of wide - spread fossils which can be used to correlate strata in a large scope 与海相地层比较，陆相地层在同位素测年、磁性地层划分和事件地层学研究方面具备建立层型的优势，同样可以找到分布广泛和利于大范围地层对比的化石门类。
The volcanic rock age and the age of the qiangtang formation determined the wudaoliang group between 20 - 5ma , discovering a flood of spore and pollen with ostracods fossils ( regard eucypris as principle ) , which are miocene epoches typical numerator , therefore wudaoliang group accumulate in miocene epoch is doubtless ; 9 - 2ma are the age of the suonahu formation based on the data of the esr , which were characteristic of later period in miocene epoch - pliocene epoch , spore and pollen with fossil all were miocene epoch period 由火山岩和覆于其上的羌塘组的年龄限定五道梁群的沉积时间为20 - 5ma ，五道梁群中发现大量的孢粉和介形虫化石(以eucypris为主) ，分析认为它们都是中新世时期的典型分子，因此五道梁群的沉积时间为中新世是无疑的；唢呐湖组的esr测年数据范围为9 - 2ma ，代表中新世晚期?上新世时期，孢粉和化石都具有中新世时期的特征。
The first is early period of dongying - guantao , which is the main stage for natural gas forming with erosion and decrease of pressure . the second is from the beginning of quaternary to update , during which gas reservoir is reforming and the reforming gas is refilling into the reservoirs . according to the value k / ar in illite , the time to form the gas reservoirs can be determined as the period of dongying - guantao , among which duzhai is 43 . 0 - 38 . 0ma and 25 . 4ma , qiaokou area 37 . 8 - 25 . 4ma and 24 . 4 - 18 . 4ma , baimiao 38 . 0 - 25 . 4ma and 23 . 4 - 20 . 4ma 伊利石测年法确定的天然气成藏时期主要为东营?馆陶组早期，其中杜寨主要为43 . 0 - 38 . 0ma及25 . 4ma ；桥口地区为37 . 8 - 25 . 4ma及24 . 4 - 18 . 4ma ；白庙地区为38 . 0 - 25 . 4ma及23 . 4 - 20 . 4ma ；杜寨地区成藏较早，伊利石测年确定的是天然气藏最早形成时期，是天然气藏形成的上限，伊利石测年法确定的天然气成藏期是两大主要成藏期的第一阶段。
By having conducted 40ar - 39ar dating of 35 samples and sm - nd dating of 19 samples from the linzizhong volcanic rocks , the post - collision volcanic rocks and a granite dike and the yarlung zangpo ophilite , the dissertation provides significant new data and results for optimizing the time framework of tectonic - magmatic event s of this region . according to isotopic dating of 9 samples , 12 experiments survey in the main trunk profile , the eruption age of the linzizhong volcanic rock in the linzhou basin has been determined as 54 - 64ma 本论文通过35个样品的~ ( 40 ) ar - ~ ( 39 ) ar及19个样品的sm - nd同位素测年，获得了关于俯冲?碰撞阶段形成的林子宗火山岩、后碰撞火山岩与花岗岩及雅鲁藏布蛇绿岩的同位素年龄数据，为完善研究区构造?岩浆事件的时间格架提供了新的资料与成果。
By comparing with the strata of " holocene series of the coastal plain of laizhou bay " and combining 14c age measurement , the strata position and features of the lagoon ? hallow sea ? each sedimentary facies are confirmed . the stratigraphic division of upper marine facies of holocene is done and the sedimentary environment of every stratum is affirmed 通过与“莱州湾滨海平原全新统”进行地层对比并结合~ ( 14 ) c测年数据，确定了该沉积区全新世泻湖?浅海?海滩相沉积层的层位和特征，并对该层及其以上地层进行地层划分，判断出各层的沉积环境。
By comprehensively applying the data of logging , drilling and seismic data , and depending on basin - modeling technology , and synchronously , integrating fluid inclusion homogenization , raman spectrum ingredient assay and autogeny illite age - determining technique , we had the numeric modeling of carboniferous - permian coal measure , including burial history , terrestrial heat history , hydrocarbon - generating and hydrocarbon - expulsing history and reservoir - forming history , at the wenan slope of jizhong depression , in the bohaiwan basin 本文综合利用钻井、测井、地震等资料，应用盆地模拟技术，结合流体包裹体测温、包裹体拉曼光谱成分分析及自生伊利石测年等先进方法，对渤海湾盆地冀中坳陷文安斜坡石炭?二叠系的埋藏史、地热史、生排烃史和成藏演化史进行了数值模拟。
Base on the definition of active fault and its meaning to engineers , this paper reviews some geological aspects and problems , such as the application of dating results in determination of active faulting ages , seismo - tectonics background studying on moderate - strong earthquakes , estimating earthquake recurrence from geological investigation , and probabilistic evaluation of the ground offset of active fault 摘要本文在对活动断层的工程涵义进行了简要分析后，讨论了断层物质测年的工程应用进展及其断层活动时代鉴定问题，并就如何加强中强地震发震构造判别、应用地震地质资料评估大地震年平均发生率、以及活动断层地表断错位移的概率评价等问题作了初步探讨。
