碳的同位素 的英文怎麼說
中文拼音 [tàndetóngwèisù]
碳的同位素
英文
isotopes of carbon-
Chemical and stable carbon isotopic compositions of the ground waters of guiyang city, china : implications for biogeochemical cycle of carbon and contamination
碳同位素和水化學在示蹤貴陽地下水碳的生物地球化學循環及污染中的應用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。Composed of micro diamonds, aluminum oxide, and silicon carbide, the isotopic distribution of these grains bore the telltale marks of their birth : ancient supernovas and red giant stars, that shone brightly and then flickered out, billions of years ago, before the birth of the solar system
由微金剛石、鋁氧化物、碳化硅組成的這些微粒的同位素分佈透露出它們的誕生：那些數十億年前，在太陽系尚未誕生時，曾經閃耀並最終熄滅的古老超新星和紅巨星。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。Many research such as clay minerals, suspend in the sea, the grain size trend analysis of surface sediment, poc 6 cu and 8 c13 in bottom sediments etc. showed that : the yellow sea warm current divided the south yellow sea into two, the terrestrial material of modern sediment on the west shelf plain mainly came from the modem yellow river suspend carried by the alongshore current, and the sediment difference between the west and east side of yellow sea trough was represented by the sedimentation thickness in postglacial period, sedimentation stratum, and oxygen isotope record
粘土礦物、碳酸鹽、粗碎屑、海域懸浮體、表層沉積物粒度趨勢分析、 poc c ~ （ 13 ）及底質沉積物的c ~ （ 13 ）等多方面研究表明：以黃海暖流為主導，南黃海堆積陸架平原西側現代沉積物陸源物質主要源於黃海沿岸流攜帶的現代黃河懸移物質，黃海槽東西兩側的沉積差異主要表現在冰消期以來沉積厚度、沉積層序、氧同位素記錄上。A radioactive isotope of carbon, especially carbon14
放射性碳碳的一種放射性同位素，尤指碳14This paper researches on the water and suspension in zhujiang ( pearl ) river and her three branches, sampling in makou hydrological gorge station of xijiang river, hekou hydrological gorge station of beijiang river and boluo hydrological gorge station of dongjiang river. the author calculated the riverine carbon flux and measured the content of different carbon forms and carbon isotope composition. furthermore, the author also studied drainage basin erosion and the influence of vegetation distribution on erosion
本文以珠江水體、懸浮物為研究對象，通過對西江馬口、北江河口、東江博羅斷面水體取樣，分析水體中不同形態碳含量，測定碳同位素值，並計算了河流碳通量值；還對珠江流域的侵蝕狀況及植被分佈對流域侵蝕的影響進行了探討。The paper adopts some methods such as gas composition, carbon isotope, systematical analyzing and testing of reservoir bitumen biomarker from high evolutional natural gas and quantitative calculation of mixed gas, illustrates that natural gas from the section of jialingjiang formation is mainly attributed to sapropel type organic matter gas of permian, comes from carbonatite hydrocarbon rocks permian which most of them are overmature, its main gas source has nothing to do with carbonatite hydrocarbon rocks of jialingjiang formation themselves, presents in geochemistry characteristics of oil type cracked gas
摘要通過對川中川南過渡帶西部的磨溪潼南地區嘉二段天然氣組成、碳同位素組成、高演化天然氣儲層瀝青生物標志化合物的系統分析測試和混合成因氣的定量估算，闡明了該區嘉二段天然氣主要屬於二疊系腐泥型有機質成因氣，來源於二疊系過成熟為主的碳酸鹽巖烴源，主力氣源與嘉陵江組自身的碳酸鹽巖烴源無關，並具有油型裂解氣的地球化學特徵。Carbon and oxygen isotopic composition ( 13c and 18o ) shows that the carbon not only derived from depth source but also sedimentary country rock
碳、氧同位素（ 13c和18o ）組成表明，既有沉積圍巖中的碳，也有深部來源的碳，具有混合來源特徵。According to the analysis on the lithogeochemical features and the carbon and oxygen isotopes of calcareous sandstones, it is realized that there some genetic relation between the formation of calcareous sandstone and uranium mineralization in the oxidation - deoxidation transitional belt, that is the precipitation and enrichment of uranium is accompanied by the deposition of carbonate and formation of calcareous sandstone
根據鈣質砂巖的巖石地球化學特徵，結合碳、氧同位素分析認為，氧化還原過渡帶中鈣質砂巖的發育與鈾礦化的形成具有一定的成因聯系，即在鈾沉澱富集成礦的同時，伴隨著碳酸鹽的析出作用，形成鈣質砂巖。Carbon and oxygen isotope data show that the carbonatite layer in fozichong ledge is different from the normal marine sedimentary carbonatite, infering that its formation has relation with hot - water sedimentary activity
碳、氧同位素顯示，佛子沖礦田賦礦層位中的碳酸鹽巖地層與正常的海相沉積碳酸鹽巖不同，其成因與熱水沉積活動有關。3 ) on the basis of the geochemistry methods of cathodoluminescencean, strontium isotope, carbon and oxygen isotope, trace element, inclusion, etc, pleokarst mechanism have been deeply studied. pleokarst had been brought about in the meteoric water of earths surface, and mainly in the early hercynian movement
3 ）通過陰極發光、鍶同位素、碳氧同位素、微量元素和包裹體等地球化學手段，深入地探討了巖溶作用機制，認為發生於地表或近地表大氣淡水環境，海西早期是區內巖溶作用發生的主要時期。Based on the analysis of the data of carbon nitrogen isotopes and trace elements such as sr, ba ca et al. of the two pieces of excavated human bones of late period of dawenkou culture and period of chunqiu and zhanguo in upper shu river in shandong province, the research applied the analysis of carbon nitrogen isotope and trace elements into the study of ancient diet
摘要本研究通過對山東沐河上游大汶口文化晚期及春秋戰國時期2塊人骨的碳、氮同位素分析和無機成分的掘、鋇、鈣等微量元素分析，探討了同位素和微量元素分析在古代人類食物結構研究中的應用問題。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Radioactive matter is incorporated into plants, which are then eaten by animals with the result that most foodstuffs have a measurable amount of radioactivity. additional radioactivity in food comes from the naturally occurring isotope carbon 14. some cosmic radiation also reaches sea level
植物亦混有輻射物質，而動物吃掉植物，以致絕大部份食物也含有一定輻射食物輻射也來自天然的同位素碳十四，此外，宇宙輻射亦可穿越大氣層照射到海面。By studying the ancient barrier lake sediments, this paper mainly probes into the ancient climate evolution rule of more scale and less from twenty - two thousand to ten thousand years before present, diexi, minjiang river. moreover, influences to lower reaches of minjiang river is simply discussed because of die out of the ancient barrier. the using correlative theories in this thesis are mc chronology, sedimentology, isotope geology, environmental geology, geomorphology
本論文運用~ （ 14 ） c年代學、沉積學、同位素地質學、地貌學等學科的有關理論，通過對岷江疊溪古堰塞湖湖相沉積物的研究，採用沉積物碳酸鹽碳氧同位素等多環境代用指標，研究岷江疊溪地區距今約22千年10千年古氣候演化規律，討論了古堰塞湖形成演化過程與地質環境的相關性。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。Based on hydrochemistry, ree, carbon and oxygen isotope analyzing, possible leakage way of the air - cushioned surge chamber is studied in the xiaotiandu power - station
摘要利用水化學、稀土元素和碳氧同位素的分析方法探討了小天都電站調壓室可能的滲水途徑。3. the correlation of isotopic constitution and the relations between diagenesis and co2 indicate that co2 mainly derived from tertiary ca - mud rocks. the carbonate cements in reservoirs under the affection of hot fluid may form co2, but the yield of co2 is low
基於碳酸鹽礦物及本區淺層co _ 2的同位素組成對比分析，並結合淺部儲層成巖作用與co _ 2的相互關系，認為co _ 2可能來自第三系鈣質泥巖。We suggest that new technologies such as the c and n isotope technique for nutrient cycling and the image analysis approaches for soil micro - structure should be applied on earthworm ecological research in order to better understand the functions of earthworms
其他新技術如研究養分循環的碳氮同位素分析和揭示土壤微結構的圖像分析等技術的應用是蚯蚓生態功能研究的迫切需要。分享友人