_key area created_by created_date data density depositionalenv_id depositiontimefrom_id depositiontimeto_id depth description formationprocess hostrock_id id is_active migration modified_by modified_date name netgrosspercent observations ore play play_id presence processes prospectivity prospectnumber quality sea source status structuralelements structuralsetting thickness total_value volumegross volumegrosst volumenet volumenett