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.
Transcript of Causes and Effects of European Exploration in America. Some basic effects of Europeans coming to North America are that the Native Americans caught new diseases which included smallpox, influenza, measles, and chicken pox. Explorers used superior fire power, like single shot muskets, to conquer natives.
As these religious and political changes were occurring, technological innovations in navigation set the stage for exploration. Bigger, faster ships and the invention of navigational devices such as the astrolabe and sextant made extended voyages possible. But the most powerful inducement to exploration was trade. Marco Poloâs famous journey to Cathay signaled Europeâs âdiscoveryâ of Chinese and Islamic civilizations.