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cave sediment
洞穴沉积物
STUDIES ON OXYGEN ISOTOPE THERMOMETRY OF CAVE SEDIMENT AND PALEOCLIMATIC RECORD 洞穴沉积物氧同位素计温及古气候记录研究(英文) 短句来源 “cave sediment”译为未确定词的双语例句
Cave sediment is a good geological recorder of environment change. 洞穴化学沉积物是响应环境变化的地质记录档案 ,通过对它蕴藏的古气候信息的解译 ,可以反演过去的气候变化。 短句来源 相似匹配句对
Paleoclimate of Stable Isotope of Stalagmite from Cave Secondary Sediment 洞穴次生沉积物石笋的稳定同位素古气候的研究 短句来源 STUDIES ON OXYGEN ISOTOPE THERMOMETRY OF CAVE SEDIMENT AND PALEOCLIMATIC RECORD 洞穴沉积物氧同位素计温及古气候记录研究(英文) 短句来源 The Sediment of Male's Oddments 男人碎片的沉淀——现代女性对男权框定的审视与叛离 短句来源 The Majestic Huangya Cave 雄奇壮美 黄崖洞 短句来源 Stage E is "tuff sediment"; E阶段为火山灰沉降; 短句来源 
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Thus, Ba and Sr must either exist on the surface of tephra particles in volatile and water-soluble compounds and/or were released by weathering from Ba and Sr containing feldspars (originating from pumice) in the cave sediment environment.
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Traces can be seen in broken speleothems, growth anomalies in speleothems, cave sediment deformation structures, displacements along fractures and bedding plane slip, incasion (rock fall) and co-seismic fault displacements.
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The Wujiang Du water power station is a large project successfully built on the karst ter- rain.Leakage around the dam foundation is one of the potential engineering problems.The anti-leak- age steps have been taken on the basis of detailed investigation.The characteristics of karst at the dam- site are studied in the paper.It is pointed out that the shallow karst and deep karst have developed un- der different dynamic conditions although both influenced by many other factors.It is also pointed out that dif... 乌江渡水电站是我国成功地兴建在岩溶地区的大型水电工程。岩溶渗漏是主要的工程地质问题,本文结合工程的运行情况,对坝址区岩溶作了进一步的探讨。指出浅部岩溶与深部岩溶的发育均受到多因素的制约,但是在不同的水动力条件下形成的;通过对岩溶洞穴堆积物特征及岩溶水质的分析,指出岩溶发育阶段在垂向上具有不一致性;文章还对巨厚可溶岩层中产生渗流的有效厚度问题作了初步讨论,并指出其在防渗方案设计中的意义。 文摘来源 A detailed palaeomagnetic study of a 2.5m thick section of cave sediment has been made in order to retrieve a record of palaeoenvironmental change in Guilin area. The palaeomagnetic results and geological evidence show that the sediments might have been deposited during the Jaramillo Polarity subchron, i.e. from 0.97 Ma to 0.90 Ma. Based on the susceptibility, the magnetic minerals(S ratios, SIRM etcs.), and sediments characteristics), and a correlation with the loess records in nor... 通过对桂林水南洞２．５ｍ厚的洞穴沉积物剖面的古地磁初步研究，其结果及地质证据表明该沉积剖面形成期可能与贾拉米洛正向期对应。根据磁化率、磁性矿物的特征和沉积学特征，对该地区这一地质时期的古环境变化提出以下认识：１．第三暖湿期，以钙华沉积为特征；２．第二干冷期，以含有少量钙质的黄褐色粘土为特征，并以含有高矫顽磁性矿物和低磁化率为特征；３．第二暖湿期，以互层的红褐色粘土、含高含量钙质的粘土或钙华为特征，并以含有低矫顽磁性矿物和高磁化率为特征；４．第一干冷期，以褐灰色粘土为特征，并以含有高矫顽磁性矿物和低磁化率为特征；５．第一暖湿期，以地下河沉积相（砂卵石为主）为特征。 文摘来源 The Yunnan\|Guizhou area, a special high\|altitude, low\|latitude ascending block, whose climate change may have much important relationship with the Qinghai\|Xizang Plateau, has a special geographical environment. Cave sediment is a good geological recorder of environment change. In this paper we mainly introduce the latest progresses in cave sediment research, and discuss the possibility to demonstrate the screen effect of the Qinghai\|Xizang plateau's uplifting on the environmenta... 云贵高原有着独特的地理环境 ,其气候变迁应与青藏高原这一特殊的高海拔、低纬度的隆升地块有重要关系。洞穴化学沉积物是响应环境变化的地质记录档案 ,通过对它蕴藏的古气候信息的解译 ,可以反演过去的气候变化。本文侧重介绍了洞穴次生化学沉积物研究近年来取得的最新成果及其研究现状 ,并利用其在古环境研究中的优点 ,来讨论青藏高原的抬升对西南地区环境变化产生的屏蔽效应的可能性。 文摘来源 << 更多相关文摘 
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