Lecho Formation
The Lecho Formation is a geological formation in the Salta Basin of the provinces Jujuy and Salta of northwestern Argentina . 
<triplet> Lecho Formation <subj> formation <obj> instance of <triplet> Jujuy <subj> Salta <obj> shares border with <subj> Argentina <obj> country <triplet> Salta <subj> Jujuy <obj> shares border with <subj> Argentina <obj> country <triplet> Argentina <subj> Jujuy <obj> contains administrative territorial entity <subj> Salta <obj> contains administrative territorial entity