volcanism造句

• At the same time, we hoped to learn about processes of volcanism that have rarely been observed before .
  同时我们希望弄清过去很少能观察到的火山作用过程。
• Bimodal rift volcanism
  双向裂谷火山活动
• For a long time researchers believed that etna ' s position at the crossroads of these faults was the explanation for its volcanism
  长久以来，研究人员相信埃特纳火山活动的原因，正是因为它位处这些断层的交会处。
• Because the moon has experienced impact , volcanism and tectonic activity , it can serve as a touchstone for understanding those processes
  由于月亮经历撞击、火山活动和板块运动，它可以做为了解这些作用的开门砖。
• Massive volcanism , on the other hand , continues to release its pollutants over millions of years , drawing out its effects on life and its habitats
  而大规模的火山活动会持续喷出污染物，长达几百万年，对生物与栖所的影响是漫长的。
• Such findings would imply that a new cycle of volcanism had commenced ? and that the newly engorged magma chamber had more potential to explode catastrophically
  这样的发现表示新一波的火山作用已经开始，而重新填满的岩浆库，更有可能造成灾难性的爆发。
• The increasing volcanism implies that the regional tectonism became progressively severe from the early stage to late stage of the late carboniferous
  自晚石炭世早期到晚期，火山活动期逐渐增长，休眠期逐渐缩短，反映出盆地性质自稳定向活动的转化过程。
• Both kinds of plate boundary are associated with fault systems , earthquakes and volcanism , but the kinds of geologic activity observed at the two boundaries are quite different
  两种板块边界均与地层系统、地震以及火山活动有关，但在两种边界处观察到的诸般地质活动却迥然不同。
• The iridium layer commonly used to support catastrophism fits into this theory as evidence for the extreme volcanism that would have been produced by the eruption of larasia and gondwana
  至于那个支持灾变说的铱异常层，则可能是拉拉西亚和冈纳德万喷发时特别强大的火山作用的产物。
• This hypothesis gained strength when we learned that the ages of the zircons from post - lava creek eruptions span the entire two - million - year duration of yellowstone volcanism
  我们得知克里克熔岩喷发物质中的锆石，年龄分布横跨整个黄石火山现象的200万年，这使我们的猜测更有说服力。
• 5 . the mesozoic volcanism in yanshan area temporarily and spatially corresponds with the regional tectonic events , which might be a consequence of deep lithospheric processes and multi - plate interaction
  5燕山地区岩浆活动与构造事件有较好的偶合关系，其构造岩浆活动可能是板块相互作用和深部岩石圈活动的共同结果。
• 4 . the relative fertile lithospheric characters of yanshan area , unique plate tectonic situation and developed deep faults can explain reasons of the volcanism and tectonic events in yanshan area throughout the mesozoic
  4燕山地区特有的相对“易熔”的岩石圈性质，所处的特殊的构造位置及发育的深大断裂，可以较好的解释该地区发生贯穿整个中生代的火山活动和构造变形的可能性。
• Dongzigou ag deposit and jianbaoshan au deposit are hosted in the sandstone of middle - proterozoic suberathem , which are developed from the proterozoic sediment metal source - rocks formed during the meso - proterozoic volcanism and reworked by the mesozoic tectono - magmatism during the formation of the metamorphic core complexes in eastern hebei . the dongzigou ag deposit has the characteristics of reformed strata - bound origin , the jianbaoshan au deposit , located in the detachment fault , is the alterated rock type . both deposits have the similar wall - rock alteration , and show the same trace element behavior , and ree patterns . they are the results of the multi - stage tectono - magmatism in the environment of continental extension in eastern hebei region . their mineralization depended on their wall rocks and relative location in metamorphic core complexs
  赋存于中元古宙长城系常州沟组的洞子沟银矿床和尖宝山金矿床是由密云-都山变质核杂岩构造体系所控制的一组矿床。其成因为中元古宙火山岩浆活动形成的沉积矿源，后经中生代的变质核杂岩构造岩浆体系叠加改造而成。洞子沟银矿床具有层控迭加改造的特点尖宝山金矿床则具有破碎蚀变岩型矿床的特点。
• During my master " degree investigation , i mainly focused on the coarse - grain stratigraphy within mesozoic basins in chengde and pingquan districts , the eastern yanshan , and did systemic provenance analysis and paleo - current direction measurement and studied the relationship among basin evolution , volcanism and tectonism . then i summarized the mesozoic basin development and the coupling characters of basin and mountain . the evolution of basin and mountain in this area can be divided into several stages : the stage of compression uplift and flexural basin during the triassic through the early jurassic , the stage of structural compression - volcanism and foreland basin during the middle and late jurassic and the stage of rift basin in the cretaceous
  在野外典型路线调查的基础上，对燕山地区东段承德、平泉地区的中生代盆地中发育的粗碎屑沉积层，进行了系统的物源分析与古流测定，并在此基础上重点剖析了盆地的发育、火山活动、构造变动三者之间的关系，总结了本区中生代盆地发育规律及盆山耦合特征，并将盆山演化划分为：三叠纪?早侏罗纪的构造挤压隆升与挠曲盆地发育阶段阶段，中晚侏罗纪的构造挤压?火山活动与类前陆盆地发育阶段，早白垩世的拉张断陷盆地发育阶段。