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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.
The word crater was adopted from the Greek word for "vessel" (Κρατήρ, a Greek vessel used to mix wine and water). Galileo built his first telescope in late 1609, and turned it to the Moon for the first time on November 30, 1609. He discovered that, contrary to general opinion at that time, the Moon was not a perfect sphere, but had both ...
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 ...
A crater is a landform appearing as a depression. Crater may also refer to: Music. Crater (Daniel Menche and Mamiffer album), 2016; Crater (Fission album), 2004;
Volcanic crater – Roughly circular depression in the ground caused by volcanic activity; Volcanic crater lake – Lake formed within a volcanic crater; Volcanic dam – Natural dam produced directly or indirectly by volcanism; Volcanic field – Area of Earth's crust prone to localized volcanic activity
The term caldera comes from Spanish caldera, and Latin caldaria, meaning "cooking pot". [6] In some texts the English term cauldron is also used, [7] though in more recent work the term cauldron refers to a caldera that has been deeply eroded to expose the beds under the caldera floor. [6]
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.
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 ...