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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 ...
Silfra fissure is a popular scuba and snorkeling site. The only outflow from lake Þingvallavatn is the river Sog . One of the noted features of the lake is the presence of four morphs of the Arctic charr .
The caldera, like the other volcanic rock in the area, is composed of a red (rather than black) volcanic rock, and is approximately 55 m (180 ft) deep, 170 m (560 ft) wide, and 270 m (890 ft) across. Kerið's caldera is one of the three most recognisable volcanic craters because at approximately 6,500 years old, it is only half the age of most ...
A fissure vent, also known as a volcanic fissure, eruption fissure or simply a fissure, is a linear volcanic vent through which lava erupts, usually without any explosive activity. The vent is often a few metres wide and may be many kilometres long. Fissure vents can cause large flood basalts which run first in lava channels and later in lava ...
Silfra is a fissure between the North American and Eurasian tectonic plates in Thingvellir National Park. It is the only place in the world where you can dive or snorkel directly in a crack between two tectonic plates. [ 22 ]
Snorkeling in the Silfra canyon. Scuba diver in the Silfra. The Alþingi (assembly) at Þingvellir was Iceland's supreme legislative and judicial authority from its establishment in 930 until 1271. The Lögberg or Law Rock was the focal point of the Alþingi and a natural platform for holding speeches. The Lawspeaker, elected for three years at ...
Krafla (Icelandic pronunciation: ⓘ) is a volcanic caldera of about 10 km (6.2 mi) in diameter with a 90 km (56 mi) long fissure zone. It is located in the north of Iceland in the Mývatn region and is situated on the Iceland hotspot atop the Mid-Atlantic Ridge, which forms the divergent boundary between the North American Plate and the Eurasian Plate. [1]
The largest of the canyons are the Noto, Cumecs, and Heron Canyons. The Noto Canyon is 27 km long, 15 km wide and 1.5 km deep, while the Cumecs Canyon is 37 km long, 39 km wide and 3 km. Both are within the northern part of the escarpment. The Heron Canyon is the largest canyon along the escarpment, being 100 km long and up to 10 km wide.