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Around 23 million years ago, western Japan was a coastal region of the Eurasia continent. The subducting plates, being deeper than the Eurasian plate, pulled parts of Japan which become modern Chūgoku region and Kyushu eastward, opening the Sea of Japan (simultaneously with the Sea of Okhotsk) around 15–20 million years ago, with likely freshwater lake state before the sea has rushed in. [4 ...
Ankō Outcrop in the village of Ōshika in Nagano Prefecture is a natural monument of Japan. Japan Median Tectonic Line (中央構造線, Chūō Kōzō Sen), also Median Tectonic Line (MTL), is Japan's longest fault system. [3] [4] The MTL begins near Ibaraki Prefecture, where it connects with the Itoigawa-Shizuoka Tectonic Line (ISTL) and the ...
Itoigawa-Shizuoka Tectonic Line (ISTL) (糸魚川静岡構造線, Itoigawa Shizuoka Kōzō Sen), also Ito Shizu Sen (糸静線) is a major fault zone on Honshu island running from Itoigawa, Niigata Prefecture, through Lake Suwa, and on to Shizuoka in Shizuoka Prefecture.
Indo-Australian plate – Major tectonic plate formed by the fusion of the Indian and Australian plates (sometimes considered to be two separate tectonic plates) – 58,900,000 km 2 (22,700,000 sq mi) Australian plate – Major tectonic plate separated from Indo-Australian plate about 3 million years ago – 47,000,000 km 2 (18,000,000 sq mi)
Topographic map of central Japan, showing location of trenches, tectonic plates and boundaries The Japan Trench is an oceanic trench part of the Pacific Ring of Fire off northeast Japan. It extends from the Kuril Islands to the northern end of the Izu Islands , and is 8,046 metres (26,398 ft) at its deepest. [ 1 ]
The modern understanding of the plate tectonic cycle predicts that remnants of submerged plates will be found near subduction zones. However, a new high-resolution model shows that these remnants ...
Japan's principal fault system is the zone where the Amurian microplate, the Eastern edge of the Eurasian plate, meets the Okhotsk microplate, sometimes considered the Western edge of the North American plate. [2] It is controversial whether the northern Honshu, Okhotsk and North American plate constitute separate blocks or plates.
The Izanagi plate (named after the Shinto god Izanagi) was an ancient tectonic plate, which began subducting beneath the Okhotsk plate 130–100 Ma (million years ago). The rapid plate motion of the Izanagi plate caused northwest Japan and the outer zone of southwest Japan to drift northward.