In early pleistocene , the ancient yongding river had not formed a channel crossing the region from west to east . in the middle pleistocene , there were widespread lakes and swamps 更新世早期时，古永定河尚未形成自西向东穿越本区的河道，新构造运动和海平面变化，控制和影响了海侵事件的规模和范围。
The formation and evolution of sequence stratigraphy of middle - upper jurassic series is affected by change of global sea level , tectonic uplift and subsidence , sedimentary supply and climate conditions 中?上侏罗统层序地层的形成演化受全球海平面变化、构造隆升与沉降、沉积物供给以及气候条件的综合影响。
Since the last glaciation , with variations in sea level , the development of incised valleys in the hangzhou bay area underwent three stages : 1 ) deep - cutting stage ; 2 ) rapid - filling stage ; and 3 ) rapid - burial stage 末次冰期以来，随着海平面变化，杭州湾地区下切河谷演化经历了深切、快速充填和埋藏三个阶段。
According to the sedimentary mechanism , the effects of sedimentary environments , structural movements and changes of the sea level on the development of the cap rock were analyzed , the distribution regularity was obtained ; 3 2 、根据沉积学原理，分析了沉积、构造及海平面变化对封盖层的影响程度，划分出区域盖层和局部盖层，并绘出封盖层分布等厚度图。
Using the data of gravity field parameter variations observed by grace , and mean sea level variations observed by satellite altimetry removed steric sea level changes calculated from the numerical ocean models , global ocean mass change is studied 利用grace卫星观测得到的重力场系数变化资料及重力卫星测高得到的海平面变化扣除由模式得到的热容海平面变化，研究了海水的质量变化。
Now , sr isotopes can be used not only to constrain the origin and evolution of magma and hydrothermal ore - forming solutions , calculate the scale and degree of lithogenesis and ascertain the relations between fluids and rocks , but also to study sea - level fluctuation , plate movement , ocean - floor spreading and lithogenic evolution 现在，锶同位素不仅在示踪岩浆及成矿热液的来源和演化、计算晚期成岩改造作用的规模和程度及流体/岩石比等方面已趋于成熟，并且越来越广泛运用于海平面变化、板块活动、海底扩张、成岩演化等方面的研究。
According to an assessment report published by the inter - governmental panel on climate change ipcc in 2001 , one of the consequences of global warming was the rise in sea level due to thermal expansion of the upper layer of the ocean and melting of polar ice caps and mountain glaciers , and it was estimated that the global mean sea level had risen by one to two millimetres per year in the 20th century . there are , however , considerable regional variation in the sea level change as global warming would affect atmospheric and oceanic circulations and hence the regional climate and sea level 根据政府间气候变化专业委员会ipcc在二一年发表的评估报告，全球变暖导致海水受热膨胀以及两极冰冠和雪山冰川融化，造成全球海平面上升，在二十世纪全球海平面平均每年上升了约一至二毫米，但区域性的差异相当之大，这主要是因为全球变暖影响了大气及海洋环流，引致区域性的天气及海平面变化。
( 6 ) the comparative study of stable isotope respond between qiangtang basin and middle - upper jurassic epoch section in the central italy indicated that the global sea level presented a general rising trend in five rise and fall cycles in middle - late jurassic epoch , whereas it presented a general falling trend of sea level in five rise and fall cycles in the studied area . regional tectonism and global sea level change play a controlling role in the relative sea level change of the studied area ( 6 )羌塘盆地与意大利中部中?晚侏罗世剖面稳定同位素响应的对比研究表明，中?晚侏罗世全球海平面表现为在五次升降旋回中呈现上升的总趋势，而在研究区表现为在五次升降旋回中海平面下降的总趋势，区域构造作用和全球海平面变化共同对研究区相对海平面变化中起到控制作用。
