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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)
Tectonic_plate_boundaries.png (775 × 429 pixels, file size: 83 KB, MIME type: image/png) This is a file from the Wikimedia Commons.
English: Physical world map in English showing the tectonic plates boundaries with their movement vectors and selected hotspots. Français : Carte physique mondiale en anglais des limites des plaques tectoniques avec leurs vecteurs de déplacement et une sélection de hotspots.
Obduction zones occurs when the continental plate is pushed under the oceanic plate, but this is unusual as the relative densities of the tectonic plates favours subduction of the oceanic plate. This causes the oceanic plate to buckle and usually results in a new mid-ocean ridge forming and turning the obduction into subduction. [citation needed]
English: Detailed world map in English showing the tectonic plates with their movement vectors Français : Carte détaillée en anglais des plaques tectoniques avec leurs vecteurs de déplacement Español: Mapa detallado en inglés que muestra las placas tectónicas con sus vectores de movimiento
The North American plate is a tectonic plate containing most of North America, Cuba, the Bahamas, extreme northeastern Asia, and parts of Iceland and the Azores.With an area of 76 million km 2 (29 million sq mi), it is the Earth's second largest tectonic plate, behind the Pacific plate (which borders the plate to the west).
Plate tectonics (from Latin tectonicus, from Ancient Greek τεκτονικός (tektonikós) 'pertaining to building') [1] is the scientific theory that the Earth's lithosphere comprises a number of large tectonic plates, which have been slowly moving since 3–4 billion years ago.
Bathymetry image showing the crest of Southern Explorer Ridge. Purple and dark blue colors indicate deepest depths. The Explorer Ridge is a mid-ocean ridge, a divergent tectonic plate boundary located about 241 km (150 mi) west of Vancouver Island, British Columbia, Canada. It lies at the northern extremity of the Pacific spreading axis.