Question: What is the maximal elevation of the summit of the shortest mountain that can be found in the island of Madagaskar? Indicate what type of mountain it is.
SQL: SELECT T3.Height, T3.Type FROM island AS T1 INNER JOIN mountainOnIsland AS T2 ON T1.Name = T2.Island INNER JOIN mountain AS T3 ON T3.Name = T2.Mountain WHERE T1.Name = 'Madagaskar' ORDER BY T3.Height DESC LIMIT 1