Geology of the Pacific Ocean Geology of the Pacific Ocean The Pacific Ocean evolved in the Mesozoic from the Panthalassic Ocean, which had formed when Rodinia rifted apart around 750 Ma. The first ocean floor which is part of the current Pacific Plate began 160 Ma to the west of the central Pacific and subsequently developed into the largest oceanic plate on Earth. The tectonic plates continue to move today. The slowest spreading ridge is the Gakkel Ridge on the Arctic Ocean floor, which spreads at less than , while the fastest, the East Pacific Rise near Easter Island, has a spreading rate of over
Nansen Ski Jump 2011, a historical marker was placed to commemorate this ski jump. Over time the ski jump evolved into a state of disrepair. In 2015, brush clearing work was started as Phase 1 torward a goal of restoring the site so visitors can view it as it once was. In 2016 and 2017, repairs to the ski jump's decking were made by Knollstone Contracting of Bow, New Hampshire, in preparation for a celebratory jump by Olympian Sarah Hendrickson, which occurred early in the morning of March 4, 2017. Nansen Ski Jump Nansen Ski Jump, also known as The Big Nansen and