<element name="penetrationRate" type="diggs:LengthPerTimeMeasureType"><annotation><appinfo><diggs:deprecated since="3.0.0" replacedBy="diggs:advancementRate" note="in the borehole's drillAdvancement (diggs:Advancement)"/></appinfo><documentation>DEPRECATED. Use advancementRate in the borehole's drillAdvancement. Rate of advancement of the drill head.</documentation></annotation></element>