The preexisting rocks may be igneous, sedimentary, or other metamorphic rocks. (adjective) 0. Let’s rock! Sediment definition is - the matter that settles to the bottom of a liquid. Music journalist Robert Christgau characterizes rock lyrics as a "cool medium" with simple diction and repeated refrains, and asserts that rock's primary "function" "pertains to music, or, more generally, noise." The group of natural processes, including weathering, dissolution, abrasion, corrosion, and transportation, by which material is worn away from the earth's surface. 1.1%. What is the rock cycle? 5.3%. Engineers (or contractor) define rock to be hard, durable material that can't be excavated without blasting. crystallization; erosion; igneous rock; metamorphic rock; metamorphism; outcrop; precipitate; rock cycle; sediment; sedimentary rock; sedimentation ; weathering; Introduction. Think of the Grand Canyon or the red rock formations scattered across the American Southwest. noun. Imagine you were in a classroom with 30 other people. Weathering is the gradual destruction of rock under surface conditions, dissolving it, wearing it away or breaking it down into progressively smaller pieces. 1. This fire is perpetual and is facilitated by radioactive reactions of a plethora of materials. Some geologists also … Define rock and describe what rocks are made of. The superficial destruction of bodily tissue by friction, pressure, ulceration, or trauma. 0. ‘Huge rocks jutted out of the ground, with no clear trail across it.’ ‘Effectively, the rock is left exposed in its geological location, but cut free from its surround.’ ‘On the highest part of the rock on which the old city of Toledo is founded is the conventual church of San Marcos.’ 0. Most people chose this as the best definition of alternative-rock: The definition of alterna... See the dictionary meaning, pronunciation, and sentence examples. Metamorphic rock definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. This is the British English definition of rock.View American English definition of rock. How to use simple in a sentence. 4. The rock cycle is a concept of geology that describes the transition of rocks between the three rock types: igneous, sedimentary, and metamorphic.The cycle outlines how each rock type can be converted to another rock type through geologic processes. limestone synonyms, limestone pronunciation, limestone translation, English dictionary definition of limestone. Rock definition: Rock is the hard substance which the Earth is made of. Describe the rock cycle. 2. a. It may involve physical processes, called mechanical weathering, or chemical activity, called chemical weathering. Metamorphic Rocks Examples. Organic sedimentary rocks form when leaves, roots, plants and animal materials are broken down and then compressed over time. Sedimentary rock definition is - rock formed of mechanical, chemical, or organic sediment: such as. Metamorphic rock, any rock that results from the alteration of preexisting rocks in response to changing conditions, such as variations in temperature, pressure, and mechanical stress, and the addition or subtraction of chemical components. Résumé Un glissement de terrain est la descente d'une masse de roche, de terre ou de débris le long d'un versant. Synonym Discussion of simple. Simple definition is - free from guile : innocent. b. 3. Noun 1. clastic rock - a rock composed of broken pieces of older rocks geology - a science that deals with the history of the earth as recorded in rocks... Clastic rock - definition of clastic rock by The Free Dictionary. 1. Slate is a dark, smooth rock. My holidays in Ibiza rocked! A relatively large body of such material, as a cliff or peak. Chocolate rocks. Most of us think of rocks as objects which don’t change. Define limestone. 0. Look it up now! A gem or precious stone. | Meaning, pronunciation, translations and examples View the pronunciation for rock. Define clastic rock. Rock's Origins (1940s-1960s) Rock’s origins can be traced to the late 1940s, when the popular styles of the day, country music and blues, morphed into a new sound aided by electric guitars and a steady drumbeat. Streak is the color of a rock after it is ground into a powder, and luster tells how shiny a rock is. Let us explore what leads to such formation. A relatively small piece or fragment of such material. Metamorphic rock - Metamorphic rock - Classification of metamorphic rocks: Because of the diverse chemistry, mineralogy, and primary origin of metamorphic rocks and because of the diverse fabrics or textures that may develop depending on the stresses that may operate during their formation, there is no simple, universally used classification of these rocks. How to use igneous in a sentence. Relatively hard, naturally formed mineral or petrified matter; stone. Rock music is a genre of popular music.It developed during and after the 1960s in the United States.It originally started in the 1940s and 1950s with the start of rock and roll.Rock and roll grew out of rhythm and blues and country music. A landslide is the movement of a mass of rock, earth or debris down a slope. The definition of a stone is a small piece of rock. Definition and synonyms of rock from the online English dictionary from Macmillan Education. Thesaurus Trending Words. put off-5.4%. When magma erupts and cools down to form hard objects, they are called igneous rocks. your wish is my command. Something, such as a hailstone, resembling a stone in shape or hardness. very. Dictionary ! Rocks are made out of minerals and have many different properties, or characteristics. Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Look it up now! Igneous Rock Definition. What does limestone mean? I can't wait to go back. That sounds simple enough, but a closer look at the evolution of rock suggests how different styles and influences have shaped its development over the years. Made of or with limestone. 45.0%. 3. Magma definition, molten material beneath or within the earth's crust, from which igneous rock is formed. Sedimentary rock definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Noun: 1. rock music - a genre of popular music originating in the 1950s; a blend of black rhythm-and-blues with white country-and-western; "rock is a generic term for the range of styles that evolved out of rock… Igneous definition is - formed by solidification of magma. Sedimentary rocks are the most common rocks exposed on Earth’s surface but are only a minor constituent of the entire crust. Geologist define rock as aggregates or mass composed of one or more commonly, several of minerals. Change your default dictionary to American English. Examples include rock salt, iron ore, limestone and flint. Igneous rock is formed from magma. The three major classes of rock are igneous, sedimentary, and metamorphic rock. An example of a stone is an uncut diamond. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form recognizable and mappable volumes. A naturally formed aggregate of mineral matter constituting a significant part of the earth's crust. See more. The definition is based on strength and durability. Menu. noun. How to use sediment in a sentence. clastic rock synonyms, clastic rock pronunciation, clastic rock translation, English dictionary definition of clastic rock. 2. noun. (intransitive, slang) To be very favourable or skilful; excel; be fantastic. Sedimentary rock, rock formed at or near Earth’s surface by the accumulation and lithification of sediment or by the precipitation from solution at normal surface temperatures. rock 1 (rŏk) n. 1. sion (ĭ-rō′zhən) n. 1. for-3.5%. In rocks, the rate of cooling allows mineral crystals, which make up the igneous rocks, to grow. Explain how each of the three main rock types formed. Know how to classify and describe rocks. Slate is a type of metamorphic rock that was first part of a lake or ocean bottom. The definition of a stone is a small piece of rock. Rock music definition: any of various styles of pop music having a heavy beat , derived from rock and roll | Meaning, pronunciation, translations and examples There are few exceptions to this rule: not all rocks are composed of minerals-for example, coal. The core of the earth, aka the center of the earth, has a massive raging fire. snowflake. Vocabulary. 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