A new volcanic arc forms at the site of the easternmost transform, and many complications develop in SE Asia (Philippines, etc.) because of transforms turning into arcs, and various subduction-flips as thick (plateau-type) ocean crust refuses to subduct. A new subduction zone develops north of Australia.
Some of the causes of the European voyages of exploration were: 1  Alternate trade routes: Europe was dependent on Middle East countries for the import of spices and was looking for alternate trade routes to Asia and Africa to obtain spices (ginger, nutmeg, clove, cinnamon, etc.) and luxury goods (silk, gold, ivory, etc.) cheaply.
Why People Explore. The reasons for exploration can vary widely. Most explorers certainly like the adventure of going to a new place, meeting new peoples and cultures, or taking on new challenges. Trade - Many countries and rulers funded explorers in order to find new trade partners and goods.