Kurravaara conglomerate (original) (raw)

Kurravaara conglomerate (Swedish: Kurravaarakonglomeratet) is a rock unit of polymict conglomerate found in northernmost Sweden. It rest confomably on top of greenstones that were originally basaltic lavas and tuff. In one locations both rock units . The conglomerate has boulders of porphyritic trachyandesite, and those that are a blend of both rock types. Greenstones are also found as boulders. In some locations the unit is poor in boulders and is made mostly of metatuff. It is overlain by the , but no clear contact exists as rock units grade into each other.