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A volcanic crater is a bowl-shaped depression in the ground caused by volcanic activity, usually located above the volcano's vent. [11] During volcanic eruptions, molten magma and volcanic gases rise from an underground magma chamber, through a conduit, until they reach the crater's vent, from where the gases escape into the atmosphere and the magma is erupted as lava.
A A-grade Also aid climbing grade. The technical difficulty grading system for aid climbing (both for "original" and an adapted version for "new wave"), which goes: A0, A1, A2, A3, A4, A5 and up to A6 (for "new wave"). See C-grade. Abalakov thread Abalakov thread Also V-thread. A type of anchor used in abseiling especially in winter and in ice climbing. ABD Also assisted braking device. A term ...
Crater may also refer to: Music. Crater (Daniel Menche and Mamiffer album), 2016; Crater (Fission album), 2004; Places. Crati or Crater, a river in southern ...
A krater or crater (Ancient Greek: κρᾱτήρ, romanized: krātḗr, lit. 'mixing vessel', IPA: [kraː.tɛ̌ːr] ; Latin : crātēr , IPA: [ˈkraː.teːr] ) was a large two-handled type of vase in Ancient Greek pottery and metalwork, mostly used for the mixing of wine with water.
Although sometimes described as a crater, the feature is actually a type of sinkhole, as it is formed through subsidence and collapse rather than an explosion or impact. Compared to the thousands of volcanic eruptions that occur over the course of a century, the formation of a caldera is a rare event, occurring only a few times within a given ...
Karapınar Field in Turkey SP Crater in the San Francisco volcanic field is a cinder cone with a basalt lava flow that extends for 4 miles (6 km). El Muweilih Crater in Sudan with natron-rich clay on the crater floor
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A volcanic crater is an approximately circular depression in the ground caused by volcanic activity. [1] It is typically a bowl-shaped feature containing one or more vents. During volcanic eruptions , molten magma and volcanic gases rise from an underground magma chamber , through a conduit, until they reach the crater's vent, from where the ...