This is partly because lava flows do not, for the most part, move very fast. A cold lava flow will not travel far and neither will one that has a high silica content. Igneous rock is formed when lava … People and animals are usually able to escape, however, as lava m… You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary. Molten rock that reaches the earth's surface through a volcano or fissure. Learn a new word every day. Definition of lava flow in English: lava flow. M. Ma Maar Mafic Magma Magma chamber Mantle Moat Monogenetic. Definition of Lava. What does lava flow mean? Video footage shows rivers of molten lava flowing to the sea. noun. lava synonyms, lava pronunciation, lava translation, English dictionary definition of lava. In this lesson, learn about what lava is made of, how it escapes, and different types of lava flows, and where they occur on Earth. See more. lava flow. The evolution and velocity of pāhoehoe flows are dependent on macro and micro … A'a' lava forms when the viscosity of the lava (e.g. Lava Lava flow Lava fountain Lava lake Lava tube Lithic Littoral cone. In volcano: Lava flows …smooth to ropy surface; and aa (or a’a), a more viscous flow whose surface is covered by thick, jumbled piles of loose, sharp blocks. Magma is called lava after it emerges from the Earth's crust. n. 1. The length and thickness of the lava flow depend on the viscosity of the lava and the slope of the terrain. lava definition: 1. hot liquid rock that comes out of the earth through a volcano, or the solid rock formed when it…. measurement applies to the entire active flow field, or a single lava flow within that field; and third, the measure-ment technique and its accompanying assumptions. Lava is molten rock that escapes through a volcano. English: lava flow n effusione f lavica. The evolution and velocity of pāhoehoe flows are dependent on macro and micro … More example sentences. A lava flow is the result of a volcanic eruption, caused by the rise of magma to the Earth's surface. Definition of lava flow. The temperatures of molten lava range from about 700 to 1,200 °C (1,300 to 2,200 °F). A girl rides a guy while knowingly on her period...he cums inside of her and she squeezes out a mixture of her blood and his cum all over his dick...like a mixture out of a yogurt machine...thus creating LAVA FLOW. Igneous rock is formed when lava … Molten rock that flows from a volcano or from a crack in the Earth. This type also tends to be of lower viscosity — they are thin and very evenly spread as a result. Environment Dictionaries. O. Obsidian Ophiolite. Check Also: 10 Facts about Lavoisier. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Lava flows are characterized by great length (up to several dozen kilometers) with relatively small width and thickness. noun. Brief explanation: A'a' lava is the most common appearance type of lava flows that cool down forming fragmented, rough, sometimes spiny, or blocky surfaces. Fluid flows are hotter and move the fastest; they can form streams or rivers, or spread out across the landscape in lobes. because of high gas bubbles content and relatively low temperatures) and/or the strain rate of the flow (related mainly to eruption rate and steepness of the ground) are high. See more. P. Pāhoehoe Paleomagnetic studies Petrologic Phreatic eruption Phreatomagmatic eruption Pillow lava Pleistocene Plinian Postglacial Pumice Pyroclast Pyroclastic flow pyroclastic surge. Km ( 40 to 120 miles ) below the surface of Earth eruptions... Pronunciation, lava translation, English dictionary definition of lava called lava domes miles ) below the surface Earth. 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