rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form recognizable and mappable volumes. Rocks are commonly divided into three major classes according to the processes that resulted in their formation. These classes are (1) igneous …

alternative rock. hard rock. classic rock. indie. pop. Rock music is a genre of music started in America. It has its roots in 1940s and 1950s rock and roll and rockabilly, which evolved from blues, country music and other influences. According to the All Music Guide, “In its purest form, Rock & Roll has three chords, a strong, insistent back ...

In geology, rock (or stone) is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition, and the way in which it is formed. Rocks form the Earth's outer solid layer, the crust, and most of its interior, except for the liquid outer core and pockets of ...

Rock music is a broad genre of popular music that originated as "rock and roll" in the United States in the late 1940s and early 1950s, developing into a range of different styles in the mid-1960s and later, particularly in the United States and United Kingdom. [3] It has its roots in 1940s and 1950s rock and roll, a style that drew directly ...

rock definition: 1. the dry solid part of the earth's surface, or any large piece of this that sticks up out of the…. Learn more.

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Rock 'n Stereo. The glory days of AOR radio, playing everything from America and Earth Wind & Fire to ZZ Top. Rock @ the Movies. Rockumentaries, concert films, and rock songs that inspired movies. Rock & Alternative 1996. Tracks from career album releases by Beck, Tool, Sublime, Dave Matthews, and Cake.

Rock: [geographical name] river 300 miles (483 kilometers) long in southern Wisconsin and northern Illinois flowing south and southwest into the Mississippi River at the city of Rock Island.

Rock supports teams, big and small, and makes it easier for you to focus on building the next big thing. Rock for Startups -> Small business. Simplify how work happens at your company and manage your whole team on Rock with messages, tasks, files in one space. From HR to marketing and sales, Rock can be used for anything your business needs. Rock for Small …

Rock (name), a list of people with the surname, first name or nickname. Rock (rapper) (born Jamal Bush in 1975), American rapper. Man Mountain Rock, later stage name used by professional wrestler Maxx Payne. Rock aka Blade Runner Rock, early ring name used by The Ultimate Warrior while as a member of the Blade Runners tag team.