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The age of the Earth is approximately 4.54 billion years old.The natural structures observed on our planet allow geologists, archeologists, and historians to understand environmental events and their impact on humans.
The Big Freeze replaced the forest land in Scandinavia with glacial tundra.The Mahuika tektite field contains glassy tektites that appear orange, light green, and clear in visible light.Tektites have been found over 220 km from the crater.Around the year 1400, the natives of New Zealand abandoned their southern coastal settlements and moved inland.
A large number of volcanic eruptions occurred in New Zealand during the 15th century.Megatsunami deposits also occur on the eastern side of Lord Howe Island in the middle of the Tasman Sea, implying a source crater further east, which is towards the Mahuika crater.The largest historical earthquakes on record have produced a maximum tsunami range of 40 to 60 meters (131-196 feet). has suggested that a bolide impact, including the collision of a large meteorite, asteroid, comet, or other celestial object, would explain both the geological and anthropological evidence better than an earthquake.In 2003, a member of the Holocene Impact Group named Dallas Abbott and her colleagues from the Lamont-Doherty Earth Observatory of the Columbia University published a paper that identified the location of a submarine crater on the southern edge of the New Zealand continental shelf, just south of the Snares Islands, 120km southwest of Stewart Island. The crater is 20 ± 2 kilometers wide and over 153 meters (501 feet) deep.