Analytical services include potassium-argon age determinations , stable isotope ratio analyses , radiocarbon age determinations as well as other radiometric analyses .
分析包括钾-氩测年,稳定同位素丰度分析,放射性碳测年,以及其他放射性分析。
Radiometric dating of two layers of volcanic ash that tightly sandwiched the fossil deposits revealed that ardi lived 4.4 million years ago .
对化石沉积层中紧紧夹杂的两层火山灰进行同位素年代测定后发现,阿地当生活于440万年前。
Synthetic aperture radiometric image system is a complex system , to simulate and analyze the system quickly and exactly , a modularized open simulation platform -- millimeter-wave radiometric imaging system simulation software according to actual system structure .
The radiometric distortions not only bring on difficulties to precise radiometric calibration , but also affect the sar imagery application , including image classification , soil moisture information and forest biomass information extraction from sar backscatter coefficients .