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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 ...
Þingvellir (Icelandic: [ˈθiŋkˌvɛtlɪr̥] ⓘ, anglicised as Thingvellir [Note 1]) was the site of the Alþing, the annual parliament of Iceland from the year 930 until the last session held at Þingvellir in 1798. [2] Since 1881, the parliament has been located within Alþingishúsið in Reykjavík. [3]
The volcanic origin of the islands in the lake is clearly visible. The cracks and faults around it, of which the Almannagjá [ˈalˌmanːaˌcauː] ravine is the largest, is where the Eurasian and North American tectonic plates meet. Silfra fissure is a popular scuba and snorkeling site. The only outflow from lake Þingvallavatn is the river Sog.
Fig 1. This figure shows the locations of the major deformation zones in Iceland and the vectors of the North American Plate movement relative to the Eurasian Plate. Legend: RR, Reykjanes Ridge; RVB, Reykjanes volcanic belt; WVZ, West volcanic zone; MIB, Mid-Iceland belt; SISZ, South Iceland seismic zone; EVZ, East volcanic zone; ; SIVZ, South Iceland volcanic zone; NVZ, North volcanic zone ...
Tectonic plates are made up of Earth’s crust and the rigid top layer of the mantle, known as the lithospheric mantle. The planet has around a dozen large and irregularly shaped tectonic plates ...
Several processes contribute to the movement and deformation of the Icelandic landmass, such as the spreading plate boundary, active volcanism, seismic activity, and glacial activity. With time, it's believed that the result of these forces will be to create new plate boundaries, with the potential for the formation of new micro-tectonic plates ...
This is a list of tectonic plates on Earth's surface. Tectonic plates are pieces of Earth's crust and uppermost mantle , together referred to as the lithosphere . The plates are around 100 km (62 mi) thick and consist of two principal types of material: oceanic crust (also called sima from silicon and magnesium ) and continental crust ( sial ...
The Eurasian plate is a tectonic plate that includes most of Eurasia (a landmass consisting of the traditional continents of Asia and Europe), with the notable exceptions of the Arabian Peninsula, the Indian subcontinent, and the area east of the Chersky Range in eastern Siberia.