The abrupt stop probably caused the roughly 120-degree kink in the Hawaiian-Emperor seamount chain
as Earth's crust moved westward over the plume, they conclude.
The seafloor of the northeastern Pacific Ocean is typical of most oceanic regions in that it features three different kinds of volcanic edifices that produce primarily basaltic volcanic rocks and their intrusive equivalents: mid-ocean ridges, where new oceanic crust is produced; near-ridge seamounts, which form adjacent to mid-ocean ridges but are not part of the mid-ocean ridge system itself; and intraplate seamounts that form well away from plate boundaries, such as the Hawaii-Emperor seamount chain
More than 80 undersea volcanoes and a multitude of islands are dotted along the Hawaii-Emperor seamount chain
like pearls on a necklace.
The six islands of Hawai'i--Kaua'i, O'ahu, Moloka'i, Lana'i, Maul and the Big Island--represent the youngest volcanoes of this Hawai'ian Ridge-Emperor Seamount Chain
, with the Big Island the newest of all.
Joban Seamount Chain
, 36[degrees]40, 144[degrees]35 (Undersea)
The geology of the Wrangellia terrane is consistent with an accreted hotspot-generated seamount chain
In 1965, Japanese coral fishermen discovered a huge bed of commercial pink coral at about 400-m depth on the Milwaukee Banks in the Emperor Seamount Chain
north of Midway Island near the northwesternmost end of the Hawaiian Archipelago.
Brown, left the port of Woods Hole, MA last week to begin what will be a 17-day expedition to explore the New England Seamount Chain
Small and Abbott unofficially named the recently discovered trough after the Louisville seamount chain
, a line of submerged volcanoes that connects with the westernmost end of the trough.
Earlier than 40 million years ago, the plate moved almost directly north, as evidenced by the north-south trend of the Emperor Seamount chain
But perhaps its most significant additions are detailed geological attributes of the seafloor, including such diverse features as spreading centers, subduction zones, seamount chains
, major faults, submarine drainage patterns, and ages and lithology of outcrops--all thanks to Tucholke.
Reactivated faults then channelled this magma upward, making the Fogo seamounts different from typical seamount chains