 <translate> Passage: Iceland is an island country at the confluence of the North Atlantic and Arctic Oceans, east of Greenland and immediately south of the Arctic Circle, atop the constructive boundary of the northern Mid-Atlantic Ridge about 860 km (530 mi) from Scotland and 4,200 km (2,600 mi) from New York City. One of the world's most sparsely populated countries, Iceland's boundaries are almost the same as the main island -- the world's 18th largest in area and possessing almost all of the country's area and population.

Question: Based on this passage, what type of plate boundary does iceland lie on?
Steam of consciousness below:
 <yor> Ìlà: Iceland je erekusu orile-ede ni confluence ti Ariwa Atlantic ati Arctic Oceans, ila-oorun ti Greenland ati ki o lẹsẹkẹsẹ guusu ti Arctic Circle, loke awọn constructive aala ti ariwa Mid-Atlantic Ridge nipa 860 km (530 mi) lati Scotland ati 4,200 km (2,600 mi) lati New York City. Ọ̀kan lára àwọn orílẹ̀-èdè tí àwọn èèyàn kò fi bẹ́ẹ̀ pọ̀ sí jù lọ lágbàáyé, ààlà Iceland fẹ́rẹ̀ẹ́ bá ti erékùṣù tó wà lágbàáyé mu. Erékùṣù yìí ni erékùṣù kejìdínlógún tó tóbi jù lọ lágbàáyé, ó sì fẹ́rẹ̀ẹ́ tóbi tó gbogbo erékùṣù àti àwọn èèyàn tó wà lágbàáyé.  Ìbéèrè: Níbàámu pẹ̀lú ohun tá a sọ yìí, orí irú ààlà òkun wo ni Iceland wà? Ìrì ìmọ̀lára ní ìsàlẹ̀: 