碳同位素比 的英文怎麼說
中文拼音 [tàntóngwèisùbǐ]
碳同位素比
英文
carbon isotope ratio-
The understanding of biogeochemical cycle of hydrogen, oxygen, carbon, nitrogen, and sulfur elements in nature ecosystem have increased substantially in the past two decades owing to the improvement of gas isotope ratio mass spectrometer and the wide application of isotopic studies with these elements
摘要近20年由於氣相同位素比值質譜儀的改良和氫、氧、碳、氮和硫等穩定同位素的廣泛研究，穩定同位素的研究技術已實質增加我們對于這些元素在自然生態系中生地化循環的了解。Compared c13 & o18 isotope analysis curve with lake level curve, further analyzed palaeoenvironment
通過分析、對比碳氧同位素曲線與湖平面升降曲線，對古沉積環境的變化規律有了進一步的認識。We can see that es3 and es4 source rocks contributes greatly to the formation of immature oil. other oil source correlation also show that the immature oil originated from source rocks of es3 and es4 in this region. 7 ) the existence of high abundance of sulfid in the mudstone indicate that that there is a relatively high salinity environment in source rocks which is favorable for algae growth
4 、通過穩定碳同位素、甾烷和萜烷等不同的生物標志化合物參數分析探討了研究區德1井低熟油的物源，生物標志化合物圖譜指紋對比表明，德1井沙一段（ es _ 1 ）油來源於本段烴源巖，德1井沙四段（ es _ 4 ）原油主要來源於沙四段泥巖和沙三段中、下部泥巖，為自生自儲成因。Tree ring is a kind of natural archives, on which the isotopic analysis is important to study global climate and environmental change. the authors mainly provide a comprehensive introduction to the fractionation models of carbon, hydrogen and oxygen isotope in plants, their research techniques and the extract methods from cellulose. that results show isotopic tracer can record the message of climatic variation and has become a powerful tool for paleoclimate reconstruction and for the modern environment changing research. especially studying on pages, the cellulose isotopic analyses of imbedded old tree ring have become the mainly quantitative means of environmental evolvement. in addition, china is a typical monsoon country, research in tree ring stable isotope seasonal variation can give us a lot of important information on that. up to now, the research techniques and works on tree ring in our country are still in its earlier stage, and remain many limitations. it needs further accumulate basic research materials, intensify regional contrast and intercross studies on relative subjects
尤其是在過去全球變化pages研究中，埋藏古木纖維素中的碳氫氧同位素分析已成為環境演化研究的主要量化手段。另外，對于中國這樣典型的季風氣候國家，開展樹輪穩定同位素隨季節性變化的研究具有重要的意義。我國在樹輪研究方面起步較晚，研究方法和研究內容上也比較簡單，還存在不小差距，既要進一步積累基礎資料，又要做區域對比，加強與相關學科的交叉研究。To let more domestic relevant researchers understand the applicable techniques of stable isotopes, this article not only introduces the principles of isotopes measurements by gas isotope ratio mass spectrometer, but also integrates the experiences of hydrogen, oxygen, carbon, nitrogen, and sulfur isotopes in agriculture and environmental applications that were described in papers
為讓國內更多相關研究人員了解穩定同位素技術的可利用性，本文描述氣相同位素比值質譜儀之分析原理，及整理氫、氧、碳、氮和硫等同位素在農業及相關生態環境研究上應用的文獻。The essential elements and process of gas reservoir formation of ordovician in ordos basin have been annalysed systematicly and scientificly by means of the theory and method of organic geochemistry and tectonic geology in this dissertation. the several advanced techniques, such as gas generation thermal simulation, on - line individual gas compounds carbon isotope determination ( py - gc - c - ir - ms ), the analysis technique of light hydrocarbons and biomarkers in natural gas, gas migration simulation and gas carbon isotope determination in fluid inclusions, have been applied to focuse on the study of the gas generation mechanism of souce rock, correlation between gas and source rock, reservoir formation history, migration direction, charging road in detail
應用有機地球化學和構造地質學理論和方法對鄂爾多斯盆地奧陶系天然氣地質研究中薄弱環節成藏要素和作用進行了系統科學分析。利用烴源巖生氣定量熱模擬技術、熱模擬在線碳同位素實驗技術、氣體輕烴和生物標志物分析技術、運聚成藏物理模擬技術和包裹體中碳同位素分析技術等多種先進的實驗技術對烴源巖的生氣機理、氣源和混合比、成藏史、充注路徑、運移方向和構造作用與成藏關系等問題進行了深入的研究，在前人研究的基礎上，經過本次大量的實驗分析和綜合研究，提出了一些新的認識。The residue analysis in determination of sr isotopes ratio of carbonate
碳酸鹽巖鍶同位素比值測定中的殘渣分析The comparison of stomatal parameters in leaf cuticles between two fossil angiosperms from the pliocene in west yunnan and their nearest living equivalent species indicates a little higher atmospheric co2 level at that time than the present, while carbon isotopic composition of fossil cuticles demonstrates much higher carbon isotopic discrimination and slight lower water use efficiency, showing a warmer and wetter climate than today
摘要對滇西騰沖新近紀兩種被子植物葉片及其現存對應種的氣孔參數和碳同位素組成的綜合分析表明：當時的大氣co2濃度略高於現在水平；化石種的碳同位素分餾值高於現存對應種，但水分利用效率低於現存對應種；這證明當時的氣候條件比當前更為溫暖濕潤。Associated with the study of lighter hydrocarbon constituent, carbon isotope, biomarker and inclusions, adopted the technique of oil source correlation on whole oil samples, it can be confirmed that the hydrocarbon source of viscous crude in permian, in the east slope of jimusaer depression, is pingdiquan formation mudstone ; carboniferous oil comes from carboniferous source rock. meanwhile, the causes of oil formation are investigated based on datum of reservior geochemistry : viscous crude of permian is the result of biodegradation and low maturity working together, and that lighter hydrocarbon constituent of carboniferous oil is missing. at last, the mode and mechanism of the oil pool formation are analysed in the study area according to the structure phylogeny, sedimentary history, and data of reservior geochemistry
本論文根據輕烴、碳同位素、生物標志化合物等資料，運用全烴地球化學油源對比方法進行油源對比，得出吉木薩爾凹陷東斜坡區二疊系的稠油來自平地泉組泥巖，石炭系的稀油來自石炭系本身源巖；同時，根據地化資料研究了原油的成因，認為二疊系稠油是生物降解和成熟度較低共同作用的結果，石炭系的稀油存在輕組分散失現象；最後，綜合構造、沉積、烴源巖和油藏地球化學資料，分析了吉木薩爾凹陷原油的成藏機制和模式。Up1up3c up1up2c. fruit and vegetable juices - determination of the stable carbon isotope ratio 13c 12c in the pulp of fruit juices - method using isotope ratio mass spectrometry
水果和蔬菜汁.水果汁的果漿中碳同位素比Standard test methods for determining the biobased content of natural range materials using radiocarbon and isotope ratio mass spectrometry analysis
使用放射性碳和同位素比率質譜分析法測定天然材料中生物基含量的標準試驗方法Based on 16 230th dating ages and 1187 data of stable isotopic compositions as well as annual laminated sequences of the stalagmites, the author firstly presents the climate records of the past 2000 years in shennongjia region. by comparing the stalagmite record with historical records, lake sediments and pollen data, the author analyzes comparability and differences of climate change in east asia monsoon area and preliminarily investigates driven forces of climate change
基於16個~ （ 230 ） th年齡、 1187個氧碳同位素數據分析和顯微巖相研究，首次建立了神農架高海拔地區近2000年氣候演化序列，通過與歷史記錄、湖泊沉積、孢粉資料對比分析了東亞季風區不同地區氣候演化的相似性和差異性。Method for the determination of c - 4 plant sugars in honey - stable carbon isotope ratio method
蜂蜜中碳- 4植物糖含量測定方法穩定碳同位素比率法Preliminary study on direction variabilities of stable carbon isotope ratios and its mechanisms in trees
樹木穩定碳同位素比率的方位差異及其機理初步研究C c method for determination of stable carbon isotope ratio of sugars from fruit juices, using isotope ratio mass spectrometry
使用同位素比值度譜法對水果中糖的穩定碳同位素比值C c. fruit and vegetable juices. determination of the stable carbon isotope ratio in the pulp of fruit juices. method using isotope ratio mass spectrometry
果汁和蔬菜汁.水果汁果肉中穩定碳同位素比值Comparative study on sample preparation in carbon and oxygen isotope analyses of lake ostracode shells
介形蟲碳氧同位素測定樣品處理方法對比研究In addition, these sediments also contain reliable high - resolution paleoenvironmental information both with long - timescale and short - timescale. therefore, this area is an ideal one for the research on the paleoceanography and paleoclimate. for the last decade thermoluminescence ( tl ) has been used for a viable tool for age determination of a variety of rock types and sediments
結合已有豐富的巖芯資料和能代表氣候變化的氧同位素地層、碳酸巖地層、生物地層、磁化率地層以及粒度、粘土礦物、色譜等資料，詳細開展熱釋光與古氣候變化的對比研究。The information of the carbon and oxygen isotopes in the ground - water ' s in carbonate plays an indicated role in the seperation the ground water system. and in the end of the paper, some prelimilary suggestion have been naturally put forward for the stop of the leakage in the dam foundation
中稀土sm tb的比值反應了水巖相互作用過程中巖溶作用以及黃鐵礦氧化作用的強弱。地下水中碳酸鹽碳氧同位素的信息對地下水系的劃分起到指示作用。最後，對壩基的防滲提出初步的建議。Carbon isotope ratio
碳同位素比分享友人