La Negra Formation
... that the Jurassic La Negra Formation in northern Chile contains products of submarine volcanism?
... that the <a href="./Jurassic" id="mwA6Y" rel="mw:WikiLink" title="Jurassic">Jurassic</a> <b id="mwA6c"><a href="./La_Negra_Formation" id="mwA6g" rel="mw:WikiLink" title="La Negra Formation">La Negra Formation</a></b> in northern Chile contains products of <a href="./Submarine_volcano" id="mwA6k" rel="mw:WikiLink" title="Submarine volcano">submarine volcanism</a>?