autochthonous vs allochthonous

autochthonous and allochthonous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
autochthonous	No	Yes	No	No
allochthonous	No	Yes	No	No

autochthonous (adjective)	allochthonous (adjective)
of rocks, deposits, etc.; found where they and their constituents were formed	of rocks, deposits, etc.; found in a place other than where they and their constituents were formed
originating where it is found