geochronology
- 1. This paper studied the geochronology of sandstone-type uranium deposit in the Dongsheng area of Ordos Basin.
- 文章研究了鄂尔多斯盆地东胜地区砂岩型铀矿成矿年代学特征。
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- 2. The results of systematic studies of geochronology, geochemistry and uranium metallogenic condition of volcanic rocks and granites in Guyuan-Duolun Basin are reported.
- 对沽源-多伦盆地火山岩类和花岗岩类进行了同位素地质年代学、地球化学和铀成矿条件的系统研究。
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- 3. Up to now, the Earth's orbital parameters remain the only periodicities in geology subject to precise calculations and, therefore, may provide new scales for geochronology.
- 迄今为止，地球轨道参数的变化是地质尺度上惟一可以精确定量计算的周期现象，可以用作地质计时的标尺。
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- 4. This paper includes a systematic analysis and correlation study on the sporopollen assemblage, stratigraphic sequence and geochronology of the Siwangou red bed section in Yaojie, Gansu.
- 对窑街寺湾沟-炭洞沟红层孢粉和地层层序及时代进行了系统分析与对比研究。
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- 5. The succession, pision and correlation of these strata are studied with lithostratigraphy, biostratigraphy and isotopic geochronology methods and by the combination of of point, line and area.
- 采取点、线、面相结合， 岩石地层学、 生物地层学和同位素年代学相结合的工作方法，研究了这套地层的层序、划分和对比问题；
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- 6. This paper presents a systematic study on morphology, geochemistry and geochronology of a zircon population from the Danzhu granodiorite located in the southwest region of the Zhejiang province.
- 本文对浙西南地区淡竹花岗闪长岩中的锆石群进行了形态学、地球化学和年代学的系统研究。
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- 7. The Herto samples were analyzed by Paul Renne of the Berkeley Geochronology Center and in Bill Hart's lab at Miami University. The results gave an age of 160, 000 to 154, 000 years for the skull.
- 伯克利地质年代中心的保罗·雷恩和比尔·哈特在迈阿密大学的实验室分析了在赫托村发现的这些样品，鉴定结果显示头骨距今约为16万年前至15.4万年前之间。
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- 8. Geochronology is the science of measuring ages, rates, and histories of geologic or planetary materials, and using these insights to understand processes and phenomena in earth and planetary science.
- 同位素地质年代学是测量年龄，利率，和历史或行星的地质资料的一门科学，运用这些见解的过程和现象可以了解地球与行星科学系。
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- 9. Geochronology is the science of measuring ages, rates, and histories of geologic or planetary materials, and using these insights to understand processes and phenomena in earth and planetary science.
- 同位素地质年代学是测量年龄，利率，和历史或行星的地质资料的一门科学，运用这些见解的过程和现象可以了解地球与行星科学系。
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