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2006-08-24 20:01:39 · 9 answers · asked by pat c 1 in Science & Mathematics Earth Sciences & Geology

9 answers

here...

2006-08-24 20:04:58 · answer #1 · answered by paoakalani 4 · 0 2

Hawaii (Hawai‘i) became the 50th state of the United States on August 21, 1959. It is situated in the North Pacific Ocean, 2,300 miles (3,700 km) from the mainland, at 21°18′41″N, 157°47′47″W. During roughly 1778–1898, Hawaii was also known as the Sandwich Islands.

Anthropologists believe that Polynesians from the Marquesas and Society Islands first populated the Hawaiian Islands at some time after AD 300-500, although recent evidence has pointed to an initial settlement of as late as AD 800-1000. It is not resolved whether there was only one extended or two isolated periods of settlement. The latter view of an initial Marquesan settlement, followed by isolation and Tahitian settlers in approximately AD 1300 who conquered and eliminated the original inhabitants of the islands, is hinted at in folk tales, like the stories of Hawaiiloa (Hawai‘iloa), Paao (Pā‘ao), and menehunes. There is a theory that: (1) there was only one extended period during which groups of immigrants repeatedly arrived; and (2) contact with their former homelands was not lost until the early 2nd millennium AD. This theory has become more accepted among some scientists, as direct evidence for a massive conquest and a sudden replacement of cultural practices has not been found in the archaeological record.

2006-08-24 20:11:53 · answer #2 · answered by Anonymous · 0 2

Ages of the Hawaiian islands

The Hawaiian islands form a chain that is stretched to the northwest and southeast. Ages of rocks from different Islands in the Hawaiian island chain show that the islands are progressively older to the northwest: Oahu, 3.4 to 2.2 Myr (millions of years); Molokai, 1.8 to 1.3 Myr; Maui, 1.3 to 0.8 Myr; and the Big Island (Hawaii), less than 0.7 and still growing. This trend is explained by the concept of a tectonic plate moving slowing over a hotspot.

Hot Spots
A hot spot is a plume of magma or molten rock that rises from within the Earth, reaches the surface forming underwater volcanoes which may grow tall enough to rise above the sea to form islands. In the middle of the Pacific ocean, the Hawaiian hotspot remains stationary while the Pacific plate slowly moves overhead to the northwest as illustrated in the cartoon on the left. The area directly over the hot spot is volcanically active. The activity decreases and eventually stops as the plate moves on. The result is the Hawaiian island chain.

The Big Island, Kilauea, and the Puna Ridge
The island of Hawaii is commonly referred to as the Big Island. The Big Island is over the hotspot right now, making it the youngest of the Hawaiian Islands. There are two active volcanoes on the Big Island: Mauna Loa and Kilauea. Currently lava is erupting along the East Rift Zone of Kilauea from the vent named Pu’u O’O. The Puna Ridge which we are surveying is the underwater continuation of Kilauea’s East Rift Zone.

Loihi, the newest Hawaiian volcano
The next Hawaiian island that will come into being - already named Loihi - is building on the seafloor southeast of Kilauea. It’s top is 1000 m (3000 feet) below the water surface, and it will break the surface in the next 10,000 to 100,000 years.

2006-08-24 20:12:52 · answer #3 · answered by hamdi_batriyshah 3 · 3 0

Parts of the Island of Hawaii are brand spankin' new.

The oldest lava rocks on the island are aligned with the earth's current magnetic field, so they were formed within the last 730,000 years.

2006-08-24 21:23:57 · answer #4 · answered by Beckee 7 · 2 0

47 years

2006-08-24 23:51:24 · answer #5 · answered by Freddie 6 · 0 2

Just 2 month

2006-08-24 20:07:48 · answer #6 · answered by Red Scorpion 3 · 0 3

As old as the rest of the earth would be my guess.

2006-08-24 20:07:21 · answer #7 · answered by * tj * 3 · 0 2

Ask God .. he will answer u

2006-08-24 20:11:47 · answer #8 · answered by Eby 3 · 0 2

Really really really old!!!!

2006-08-24 20:09:32 · answer #9 · answered by thornemyangel 2 · 0 2

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