maar
maar Crater, often occupied by a shallow lake, produced by an explosive volcanic eruption. Normally it is surrounded by a low rampart or ring of ejected material. Typically, maars are formed by the explosive interaction of volcanic magma with groundwater. The ejected material is a mixture of country rock and highly fragmented ash.
maar
maar A crater, often occupied by a shallow lake, which is produced by an explosive volcanic eruption. Normally it is surrounded by a low rampart or ring of ejected material. Typically, maars are formed by the explosive interaction of volcanic magma with groundwater. The ejected material is a mixture of country rock and highly fragmented ash.
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Country Rock , Country rock
The term country rock refers to a body of rock that receives or hosts an intrusion of a viscous geologic material. Intrusions into count… material , ma·te·ri·al / məˈti(ə)rēəl/ • n. 1. the matter from which a thing is or can be made: goats can eat more or less any plant material | materials such a… Regolith , Regolith is a layer of loose or unlithified soil and rock debris that overlies and blankets bedrock . It is derived from the Greek roots rhegos, for… Slate , slate / slāt/ • n. 1. a fine-grained gray, green, or bluish metamorphic rock easily split into smooth, flat pieces. ∎ a flat piece of such rock used… Igneous Rocks , Igneous rocks are formed by the cooling and hardening of molten magma. The word igneous comes from the Latin word igneus, meaning fire, and there are… Geode , Geode
Geodes are hollow rock masses that are lined with crystals that have grown toward the center of the cavity. Geodes are usually roughly spherica…
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maar