Kaneoka,Ichiro and Masao Suzuki <br/><br/>
K-Ar and fission track ages of some obsidians from Japan 

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 - Tokyo - JAPO  Geological Society of Japan  1970 
 - 4p.  28cm. Fotocopia 
 - Journal of the Geological Society of Japan   v.76(6) .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label>--Potasio--Argon--Geocronologia----Japon<br/>Geologia