External email to Cardiff University - Take care when replying/opening attachments or links.
Nid ebost mewnol o Brifysgol Caerdydd yw hwn -
Cymerwch ofal wrth ateb/agor atodiadau neu ddolenni.
Dear group ,
With most respect fully want to deeply understand the natural mystery, even expulsion of oils and gas from sedimentary source rocks is scientifically true and correct. Thanks