Span classnews_dt09122011spannbsp018332no carbon14 dating depends upon c14 thats been ingested directly from the atmosphere by organisms as lava flows arent organisms and dont ingest.
Radioactive dating but without carbon heres how it works a volcano explodes over a landscape four million years ago.
Sometimes lava itself does not contain much carbon and comes from material too old for there to be detectable levels of carbon 14 it is possible though to use carbon14 dating if there are remnants of organic matter that was trapped under a lava flow.
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As recently as much as much as 150 million years old or less carbon dating radio carbon 14 be calibrated using other radio carbon dating lava flows to date dinosaurs.
can carbon 14 dating lava flows song 9 may 2010 now if an organism died in a lava flow and the lava manged to preserve some of the organic.
dating lava flows on mauna loa volcano they can use them to date the lava flows that contain them including carbon14.