| 单词 | carbon-14 dating |
| 释义 | carbon-14 dating (once / 1313257 pages) n WORD FAMILY carbon-14 dating USAGE EXAMPLESIn a new study, marine biologists used carbon-14 dating of Greenland shark eye lenses to determine how long they live. US News(Aug 15, 2016) "Now we can use carbon-14 dating and ancient DNA and compare it to the Neanderthal genome." Scientific American(Dec 30, 2013) Preliminary carbon-14 dating indicates that it may have required about 1,100 years for these specimens to work their way up through the ice.” Scientific American(Aug 18, 2012) n a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon-14; believed to be reliable up to 40,000 years Syn|Hyper carbon dating, radiocarbon dating dating, geological dating use of chemical analysis to estimate the age of geological specimens |
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