mine vs surface-mine

mine is a noun but surface-mine is not a noun.

Word	Noun	Adjective	Verb	Adverb
mine	Yes	No	Yes	No
surface-mine	No	No	Yes	No

As verbs, surface-mine is a hyponym of mine; that is, surface-mine is a word with a more specific, narrower meaning than mine:

Other hyponyms of mine include strip mine, surface mine.

mine (noun)	surface-mine (noun)
explosive device that explodes on contact; designed to destroy vehicles or ships or to kill or maim personnel
excavation in the earth from which ores and minerals are extracted

mine (verb)	surface-mine (verb)
lay mines	extract (ore) from a strip-mine
get from the earth by excavation