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Eldgjá (Icelandic pronunciation: [ˈɛltˌcauː] ⓘ, "fire canyon") is a volcano and a canyon in Iceland.Eldgjá is part of the Katla volcano; it is a segment of a 40 kilometres (25 mi) long chain of volcanic craters and fissure vents that extends northeast away from Katla volcano almost to the Vatnajökull ice cap.
The Gjálp eruption took place at a some kilometers long known fissure under 550–700 m (1,800–2,300 ft) of glacier ice within Vatnajökull. The eruption in October 1996 could push through this ice in about 30 hours [6] and took place from 30 September to 13 October 1996. The eruption fissure had a length of 6–7 km (3.7–4.3 mi). [1]
Silfra fissure The Mid-Atlantic Ridge passing through Þingvellir Rocks and boulders that have piled up in the fissure due to earthquakes.. Silfra (Icelandic pronunciation: [ˈsɪl(v)ra]) is a rift formed in the Mid-Atlantic Ridge – the divergent tectonic boundary between the North American and Eurasian plates – and is located in the Þingvallavatn Lake in the Þingvellir National Park in ...
Palo Duro Canyon is a canyon system of the Caprock Escarpment located in the Texas Panhandle near the cities of Amarillo and Canyon. [2] A large canyon system in the south-central United States , it is roughly 25–40 mi (40–64 km) long and has an average width of 6 mi (9.7 km), but reaches a width of 20 mi (32 km) at places.
The upper basalt is Roza Member, while the lower canyon exposes Frenchmen Springs Member basalt A flood basalt (or plateau basalt [ 1 ] ) is the result of a giant volcanic eruption or series of eruptions that covers large stretches of land or the ocean floor with basalt lava .
Grand Canyon, Arizona, at the confluence of the Colorado River and Little Colorado River.. A canyon (from Spanish: cañón; archaic British English spelling: cañon), [1] gorge or chasm, is a deep cleft between escarpments or cliffs resulting from weathering and the erosive activity of a river over geologic time scales. [2]
A new analysis of National Park Service numbers names Grand Canyon and Wrangell-St.Elias as the “most dangerous national parks” in America. “Since 2007, 165 people have died in the Grand ...
A submarine canyon is a steep-sided valley ... is 800 km (497 mi) long, and 1,200 m (3,900 ft) deep [citation needed ... Their primary causes have been subject to ...