Oxygen isotopes in particular are shifted toward lower values as the result of interaction between the hydrothermal fluids and carbonate rocks.

特別是氧同位素轉(zhuǎn)變?yōu)閷?duì)之間的互動(dòng)和熱液碳酸鹽巖導(dǎo)致更低的數(shù)值亚洲国产精品色一区二区三区在线。

By comparing the carbon and oxygen isotope records of stalagmite P001 and flowstone P007 with the modern rainfall amount,it can be seen that the oxygen isotopes reflects the strength of precipitation or monsoon in annual to decadal time scale.

通過P001石筍和P007流石的碳欧美又乱又伦观看、氧同位素記錄與現(xiàn)代降雨記錄的比較可知，在年際至10年際尺度上国产成人男女在线观看网站视频免费，氧同位素反映的為降水或者季風(fēng)的強(qiáng)弱激情女人综合网。

Otolith is calcareous concretions in fish inner earsIts composition and structure are very stableIts accretional growth follows a circadian rhythm that is physiologically controlled and influenced by environmental conditionsOtolith acts as biological archives providing the basis for the reconstruction of individual life traits and environmental parametersThe paper focuses on fish otolith trace elements and their isotopes, general testing methods and the prospect and problems of its application in environmental detection in recent 20 years, hoping that it could provide researchers with some thoughts and could expand its potential application in environmental science.

魚耳石是魚類內(nèi)耳中的鈣質(zhì)沉積體，組成和結(jié)構(gòu)非常穩(wěn)定日韩一区二区高清，它的生長輪受其生理控制和環(huán)境條件影響有規(guī)律地晝夜生長日韩超清一区二区三区无码视频。耳石可作為魚類的生物學(xué)記錄者并為重建其生活特征和環(huán)境參數(shù)提供依據(jù)。文中就近20年來國內(nèi)外關(guān)于魚耳石微量元素和同位素方面的研究熱點(diǎn)国产午夜福利电影、魚耳石元素研究中常用的測試分析方法以及其在環(huán)境監(jiān)測中的應(yīng)用前景和存在的問題作一整理和綜述日韩免费午夜短片在线，望能為廣大耳石研究者提供一些思路和揭示其在環(huán)境科學(xué)中的廣闊應(yīng)用前景。

The progresses of tracing ore-forming fluids in different kinds of ore deposits using rare gas isotopes are summarized, and some problems and the developing tendency about this method are also discussed.

歸納了近年來用稀有氣體同位素來示蹤成礦流體的研究進(jìn)展伊人久久影院一区二区三区，概括了其在不同類型礦床中的應(yīng)用現(xiàn)狀A片亚洲、欧美视频，并指出當(dāng)前該方法存在的問題及發(fā)展趨勢。

It's between two isotopes of hydrogen, two kinds of hydrogen, deuterium, which is heavy hydrogen, which you can get from seawater, and tritium which is super-heavy hydrogen.

這兩種氫日韩精品黄在线看，其一為氘www.99热.com，它是重氫，可由海水獲得精品精油按摩毛片；而氚是超重的氫。

But in the 1950s the first sophisticated mass spectrometers were developed, capable of measuring isotopes in small samples.

但是上世紀(jì)50年代發(fā)展出的精細(xì)質(zhì)譜儀能夠測定少量樣品中的同位素国产久一黄色网站。

The Canadian nuclear reactor at Chalk river, Ontario, is the largest single supplier of isotopes in the world.

加拿大核反應(yīng)堆位于安大略省喬克河畔二级婬片高清视频一，是世界上最大的也是唯一的同位素供應(yīng)源。

The available results found that atmospheric p CO2 variations reconstructed according to boron isotopes of marine foraminifers agree well with the records from Vostok ice cores.

現(xiàn)有的研究證實(shí)利用海洋浮游有孔蟲硼同位素重建的大氣CO2濃度變化與Vostok冰芯記錄的大氣CO2濃度變化吻合地很好国产吧在线视频。

Succeful seismic testing for Flowserve valves The multiple radiation waste remediation projects in, which the valves will be utilised, will eure that nuclear waste can be safely stored while the isotopes decay and eventually become harmle.

福斯流體控制有限公司福斯閥門成功用于地震測試那些大量用于放射性廢物補(bǔ)救設(shè)備中的閥門国产最新免费视频在线网站，可以確保核廢料安全的儲(chǔ)存在同位素中，減弱核輻射并最終變的無害在线看人成视频人成视频免费看。

In the northeast part of the South China Sea the high salinity water comes from the Philippine Sea, therefore, biologic productivity was high and there was rich organic matter in sediments during the periods of oxygen-isotopes 2, 4 and 6. In these periods the sedimentation rate was very high, so there were very good material conditions for formation of gas hydrate. In addition, from the end of Miocene to present, the Philippine Sea plate collided with Asian plate in Taiwan area, extruding the northeast part of the South China Sea along northwest direction. The extruding force made fluid in the sediments very active, and this is very good for the formation of gas hydrate.

南海凍北部www.日本特级，在氧同位素2www.xx性xx、4、6期97人人操人人舔，由于菲律賓海的高鹽度海水的注入在线观看国产福利，使這里的生物生產(chǎn)率特別高，陸坡上沉積了豐富的有機(jī)物質(zhì)国产黄色视频噜噜，加上此期間該處的沉積速率高色综合天天综合网，為天然氣水合物的生成提供了物質(zhì)條件；另外一级黄片三区，自中新世末以來手机看片日韩精品视频在线，由于菲律賓海板塊與歐亞板塊在臺(tái)灣地區(qū)發(fā)生碰撞，對(duì)南海北部產(chǎn)生北西向擠壓xxxx.wwww，加快了流體在沉積物中的活動(dòng)在线看片免费人成视频久网不卡，為天然氣水合物的生成提供了良好的構(gòu)造環(huán)境。