The longterm preserved specimens and fossil insects, when used for stableisotopeanalysis, can expand the temporal scale of these studies greatly.
对长期保存标本与昆虫化石的同位素分析则扩展了研究的时间范围。
2
The present study made a detailed carbon and oxygen stableisotopeanalysis on the lacustrine carbonates from the Lower Cretaceous Yixian Formation, Yixian, western Liaoning, NE China.
The combination of enriched stableisotope tracer studies and activation analysis techniques has become an ideal and reliable technique, especially in the fields of biology and medicine.