radioactive dating

1. Measurement of geologic time, as through isotopic radioactive decay. radiocarbon 14 dating method
   地质年代测定通过放射性同位素衰变来测定地质年代放射性碳14测定年龄法
2. Detailed biostratigraphic study reveals that the sequence could contain 3 Ostracoda assemblages, 3 Lamellibranchiata and Gastropoda assemblages and 8 sporopollen assemblages, whose ages are discussed on the basis of radioactive dating.
   通过详细的生物地层学研究，共划分出3个介形虫化石组合带、3个瓣鳃类及腹足类化石组合带和8个孢粉组合带，结合各组同位素年龄数据，对其形成时代进行了探讨。
3. STUDY ON SOME PROBLEMS IN RADIOACTIVE FALLOUT MEASUREMENT From Chronology to Radioactive Dating
   对核应急放射性沉降监测中一些问题的探讨从断代到年龄测定
4. From Chronology to Radioactive Dating
   从断代到年龄测定
5. ON THE MEASURE OF VACUUM From Chronology to Radioactive Dating
   谈谈真空度的表述从断代到年龄测定
6. This paper is the western Sichuan plateau Que mountain of radioactive characteristics of granite preliminary discussion, information and dating through the surface of cho la formed in the Mesozoic granite, granite, western Sichuan during this period is the most typical rock.
   本文主要是对川西高原雀儿山花岗岩体的放射性特征进行初步的探讨，通过资料以及测年表面雀儿山花岗岩体形成于燕山期，是川西花岗岩在这一时期最为典型的岩体。

noun

1. measurement of the amount of radioactive material (usually carbon 14) that an object contains