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  2. Silfra - Wikipedia

    en.wikipedia.org/wiki/Silfra

    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 ...

  3. Þingvellir - Wikipedia

    en.wikipedia.org/wiki/Þingvellir

    Þingvellir is a site of historical, cultural, and geological significance, and is one of the most popular tourist destinations in Iceland. The park lies in a rift valley that marks the crest of the Mid-Atlantic Ridge and the boundary between the North American and Eurasian tectonic plates.

  4. A new ocean? Scientists track dramatic (but slow) changes ...

    www.aol.com/ocean-scientists-track-dramatic-slow...

    Iceland sits atop a similar rift area as northern Africa, and it's possible to scuba dive into a lake that's formed between the separating areas. When was the last time we got a new ocean?

  5. Geology of Iceland - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Iceland

    Iceland lies on the divergent boundary between the Eurasian plate and the North American plate. It also lies above a hotspot , the Iceland plume . The plume is believed to have caused the formation of Iceland itself, the island first appearing over the ocean surface about 16 to 18 million years ago.

  6. Index of recreational dive sites - Wikipedia

    en.wikipedia.org/wiki/Index_of_recreational_dive...

    Silfra – Water-filled rift in Iceland between the North American and Eurasian tectonic plates; Similan Islands – Marine protected area in Phang Nga Province, southern Thailand; Sipadan – Oceanic island in Malaysia; SS Sir William Seimens – American lake freighter (1896–1944) Slickstones Quarry, Cromhall – Quarry in Gloucestershire

  7. Geological deformation of Iceland - Wikipedia

    en.wikipedia.org/wiki/Geological_deformation_of...

    The geological deformation of Iceland is the way that the rocks of the island of Iceland are changing due to tectonic forces. The geological deformation help to explain the location of earthquakes, volcanoes, fissures, and the shape of the island. Iceland is the largest landmass (102,775 km 2 (39,682 sq mi)) situated on an oceanic ridge.

  8. Cave diving regions of the world - Wikipedia

    en.wikipedia.org/wiki/Cave_diving_regions_of_the...

    A cave diver running a reel with guide line into the overhead environment. Cave diving is underwater diving in water-filled caves.The equipment used varies depending on the circumstances, and ranges from breath hold to surface supplied, but almost all cave diving is done using scuba equipment, often in specialised configurations with redundancies such as sidemount or backmounted twinset.

  9. Outline of recreational dive sites - Wikipedia

    en.wikipedia.org/wiki/Outline_of_recreational...

    Wall diving is a form of reef diving, where The main characteristic of the sites is that the terrain is predominantly near vertical. The height of the wall can vary from a few metres to hundreds of metres. [1] The top of the wall must be within diving depth, but the bottom may be far below or reasonably close to the surface.

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