Begining with analysis of sequence stratigraphy of stratum ore hosted , this paper analysed structure of basin , variation of sea level and terrigenous sedimentation input rate which impacted on seafloor hydrothermal sedimentary mineralization , then through the study of characteristics of hydrothermal sedimentary rocks , ore deposit geochemisty and geology , metallogenic series are established 从层序地层分析着手，分析热水沉积成矿时的沉积环境、海平面变化及陆源沉积输入对热水沉积成矿的影响，研究热水沉积岩的地质特征和地球化学特征、矿床地质特征对比、矿床地球化学、成矿物理化学条件等，最终建立了该区的成矿系列。
From the understanding of the conceptual framework for natural vulnerability , the paper analyzes with deep insight into the impacting factors of the natural - system to sea - level change , on the one hand , the coast would be susceptibility to the changes including the short - term sea - level changes such as tide , storm tide , el nino and the long - term sea - level rise . the overlap of this two changes would increase the coastal natural - system vulnerability 文章从海岸自然脆弱性概念框架出发，深入分析了海岸自然脆弱性的影响因素：一方面海岸自然体系对海平面变化具有“敏感性” ，海平面变化包括短期的海面波动，如潮汐、风暴潮、厄尔尼诺等，还包括长期的海平面上升，海平面上升和短期海面变化叠加将加剧海岸带的“敏感性” 。
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。
On the other hand , the coastal system ' s natural adaptive response ( resilience and resistance ) to sea - level rise would induce or increase the potential risk . the changes of the coastal risk to sea - level rise are related to the coastal environment ( geology , geomorphology , coastal height , coastal slope and local ascend and subsidence trend ) . the coasts with high elevation , steep coastal slope , rocky cliff , and ascending stabilization are considered to be of higher autonomous adaptive capacity , and the lower autonomous adaptive capacity areas generally occur at lower - lying beach areas and delta coasts where coastal slope is low and the crust is descending 另一方面，海岸带对海平面变化的自然适应能力( “弹力”和“阻力” )将使其对海平面变化的“敏感性”减少或增大，海岸自然适应能力与海岸带的海岸环境(地质、地貌、海岸高程、海岸坡度，地壳升降运动等)有关，海拔高、海岸坡度大、地壳长期稳定上升的基岩海岸的自然适应能力较强，反之，海岸坡度平缓、地壳长期下降、地势平坦的平原海岸和三角洲海岸的自然适应能力较弱。
