isotopic age 中文意思是什麼

isotopic age 解釋
同位素年齡
  • isotopic : adj. 同位素的。 isotopic abundance ratio 同位素豐度比。 isotopic spin 同位旋。adv. -ally
  • age : n 1 年齡。2 成年〈滿廿一歲〉。3 老年，晚年。4 壽命；終生，一生。5 時代，時期，年代。6 〈口語〉很...
  1. Isotopic age of shijuli gabbro in north qilian mountain and its geological significance

    北祁連山石居里輝長巖的同位素年齡及其地質意義
  2. Evidence from isotopic dating suggests that the greenstone belts vary considerably in age.

    來自同位素年齡鑒定的證據指出，綠巖帶在年齡上彼此變化相當大。
  3. Undertaking isotopic geochronological study on ar - ar, adopted the fast - neutron activation dating technique to test 40ar - 39ar age of quartz from au - bering quartz veinlet ore in the deposit, and well - defined plateau age of 210. 59 ma ?. 92 ma, the lowest apparent age of 208. 07 ma ?. 22 ma, and isochron age of 207. 14 ma ? 1. 92 ma

    通過流體包裹體顯微測溫學研究，表明金礦床的均一溫度成礦早階段為270 320 ，成礦主階段為170 250 ，成礦晚階段為110 250 ，呈逐漸降低的趨勢，低溫成礦作用明顯。
  4. Using isotopic ( d, 18o 14c ) geochemical methods, this paper has studied the genetic relationship between the isotopic composition of meteoric water and that of underground hot water, analyzed the supply source of the kaifeng geothermal field and the generation of the geothermal water, and calculated its formation age

    摘要應用同位素（ d 、 18o 、 14c ）地球化學方法，研究大氣降水和地下熱水中同位素組成之間成因關系，分析開封地熱田中地熱水補給來源方向和地熱水的形成，計算其生成年齡。
  5. 90 ' s it was found in shizishan, yimen, indicated that the type deposit is well explorative prospect in dongchuan - yinmen. by sum up the data of trace elements, isotopic elements, fluid inclusions and minerogenetic age et al.,

    稀礦山式銅礦以落雪礦區稀礦山礦段最為典型，主要分佈在因民落雪大喬地?稀礦山、濫山、磨子山，濫泥坪6 ? 4巷、白錫臘和拖布卡地區。
  6. By having conducted 40ar - 39ar dating of 35 samples and sm - nd dating of 19 samples from the linzizhong volcanic rocks, the post - collision volcanic rocks and a granite dike and the yarlung zangpo ophilite, the dissertation provides significant new data and results for optimizing the time framework of tectonic - magmatic event s of this region. according to isotopic dating of 9 samples, 12 experiments survey in the main trunk profile, the eruption age of the linzizhong volcanic rock in the linzhou basin has been determined as 54 - 64ma

    本論文通過35個樣品的~ （ 40 ） ar - ~ （ 39 ） ar及19個樣品的sm - nd同位素測年，獲得了關于俯沖?碰撞階段形成的林子宗火山巖、后碰撞火山巖與花崗巖及雅魯藏布蛇綠巖的同位素年齡數據，為完善研究區構造?巖漿事件的時間格架提供了新的資料與成果。
  7. All of the mafic samples have age - corrected moderate enriched sr and enriched nd isotopic ratios and the felsic rocks span larger range in the initial sr and nd isotopic ratios than mafic volcanics, similar to isotopic compositions of lower crust of north china block

    在sr - nd同位素組成上，中基性火山巖為中等富集的sr和低的nd同位素比值；中酸性火山巖的sr同位素比值總體較中基性巖高且變化大，類似華北陸塊下地殼巖石的同位素組成特徵。
  8. Abstract : based on the isotopic dating data of volcanics and recent research achievements of age boundary between jurassic and cretaceous systems, it is suggested that the volcanic series in shengyuan basin must be attributed to lower cretaceous

    文摘:本文根據盛源盆地火山巖同位素年齡數據和侏羅-白堊系界線年齡的最新研究成果，認為盛源盆地火山巖系的地層時代應屬早白堊世。
  9. By statistically analyzing of isotopic ages for granitoids and commenting on previous studies, the authors preliminarily determine that a large volume of granitoids developed during 200100ma, predominately formed in the period of 150100ma, with the peak age at about 130ma. the inferred lithosphere delamination from the development of granitoids occurred slightly later than that deduced from researches on metamorphic rocks

    通過對花崗巖類同位素年統計和前人研究成果的評述，初步確定在200100ma之間發育大量花崗巖類，並集中在150100ma為主即侏羅紀白堊紀之交，高峰時間為130ma左右花崗巖類大量發育指示了巖石圈拆沉的存在，且滯後於根據變質巖研究所揭示的拆沉時間。
  10. Isotopic data proved that the forming age of the sertengshan group is neoarchean

    頂部與中新元古界白雲鄂博群、渣爾泰山群不整合接觸。
分享友人
分享到 Line

分享到臉書