 
 <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:
 <ibo> Passage: Iceland bụ agwaetiti dị na confluence nke North Atlantic na Arctic Oceans, n'ebe ọwụwa anyanwụ nke Greenland na ozugbo n'ebe ndịda nke Arctic Circle, n'elu oke oke nke ugwu Mid-Atlantic Ridge ihe dị ka 860 km (530 mi) site na Scotland na 4,200 km (2,600 mi) site na New York City. Otu n'ime mba ndị mmadụ kacha biri n'ime ha n'ụwa, ókèala Iceland fọrọ nke nta ka ọ hara ka nke isi agwaetiti ahụ - nke bụ́ nke 18 n'ụwa n'ọnụ ọgụgụ ma nwee ihe fọrọ nke nta ka ọ bụrụ ókèala na ọnụ ọgụgụ ndị bi n'obodo ahụ.  Ajụjụ: Dabere n'ihe a e kwuru n'amaokwu a, olee ụdị mbadamba nkume ndị dị n'ala Iceland? Steam nke ịmara n'okpuru: 