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  2. Continental crust - Wikipedia

    en.wikipedia.org/wiki/Continental_crust

    The thickness of Earth's crust (km). The continental crust consists of various layers, with a bulk composition that is intermediate (SiO 2 wt% = 60.6). [5] The average density of the continental crust is about, 2.83 g/cm 3 (0.102 lb/cu in), [6] less dense than the ultramafic material that makes up the mantle, which has a density of around 3.3 g/cm 3 (0.12 lb/cu in).

  3. Volcanic arc - Wikipedia

    en.wikipedia.org/wiki/Volcanic_arc

    Volcanic arc formation along a subducting plate. A volcanic arc (also known as a magmatic arc [1]: 6.2 ) is a belt of volcanoes formed above a subducting oceanic tectonic plate, [2] with the belt arranged in an arc shape as seen from above.

  4. Crust (geology) - Wikipedia

    en.wikipedia.org/wiki/Crust_(geology)

    The internal structure of Earth. In geology, the crust is the outermost solid shell of a planet, dwarf planet, or natural satellite.It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case of icy satellites, it may be defined based on its phase (solid crust vs. liquid mantle).

  5. Siege of Kerak - Wikipedia

    en.wikipedia.org/wiki/Siege_of_Kerak

    Saladin, a Sunni Muslim and the leader of the Muslim forces, decided that the Kerak castle would be an ideal target, both to protect the ability of Muslims to travel freely between Egypt to Damascus and to dissuade future Christian attacks on Mecca. [6] Demonstrations of war machines used during the siege of Kerak in Kerak Castle Museum

  6. Earth's crust - Wikipedia

    en.wikipedia.org/wiki/Earth's_crust

    Plates in the crust of Earth. Earth's crust is its thick outer shell of rock, referring to less than one percent of the planet's radius and volume.It is the top component of the lithosphere, a solidified division of Earth's layers that includes the crust and the upper part of the mantle. [1]

  7. Kerak Castle - Wikipedia

    en.wikipedia.org/wiki/Kerak_Castle

    Kerak Castle (Arabic: قلعة الكرك, romanized: Qal'at al-Karak) is a large medieval castle located in al-Karak, Jordan. It is one of the largest castles in the Levant . Construction began in the 1140s, under Pagan and Fulk, King of Jerusalem .

  8. Vanua - Wikipedia

    en.wikipedia.org/wiki/Vanua

    Malay. In the Malay language (the lingua franca of both Malaysia and Indonesia), benua means "landmass" or "continent". The word for "land" in these languages and nearby Austronesian languages — e.g., in Tana Toraja, Tana Tidung or Tanö Niha – are tanah or tana.

  9. 2016 Al-Karak attack - Wikipedia

    en.wikipedia.org/wiki/2016_Al-Karak_attack

    On 18 December 2016, a series of shootings took place in the city of Al-Karak in southern Jordan.The attack started in the vicinity of Al-Karak where a group of unidentified militants ambushed emergency responders and then moved into the city, attacking police patrols and the local police station and finally seeking shelter in the historic Crusader-era Kerak Castle, a popular tourist attraction.