### rock:

Boulder
* Some boulders exceed six feet in diameter
  - have bolts on top for toproping
* are much less weathered than gravel
* can change the temperature gradient in a snowpack and weaken the base.
* explode into cobble sized pieces when they impact the ground.
* has a dry climate.
* includes sections.
* is in the foothills of the Rocky Mountains
  - one of the snowiest cities in the United States
  - the incest capital of the world
* opal describes opal found within ironstone concretions of varying shape and size
  - is produced in several areas in western Queensland
* protruding from the waters surface create two pockets of slower water.
* rise up from the deep blue of the sea.
* state of mind where physical activity is revered.
+ Boulder, Colorado, Geography, Climate
  * Boulder has a dry climate. It has many sunny or mostly sunny days every year. Winters are cool, but sometimes can get very cold
  - Colorado: County seats in Colorado
  * Boulder' is a city in the state of Colorado, in the United States. It is the county seat of Boulder County. Boulder is in the foothills of the Rocky Mountains. The city's height is. It is  northwest of Denver. In 2011, there were 98,889 people living the City of Boulder. The Boulder Metropolitan Statistical Area has 294,567 people living in it

### rock | boulder:

Large boulder
* Some large boulders appear to be made up of many smaller rocks cemented together.
* appear to be partly buried in the surface material.

Cambrian rock
* contain the first abundant record of shelly fossils.
* underlie Ohio but are nowhere exposed at the surface.

### rock:

Carbonate rock
* are different in different places and at different times
  - found throughout the world but by no means evenly distributed
  - sedimentary rocks
  - the reservoirs for much of the oil and natural gas production in Kansas
* can also be pink or other colors, depending on the impurities present.
* comprise known or potential aquifers in some parts of Alaska.
+ Portland limestone, Formation, Later events: Carbonate rocks :: Building materials
  * Carbonate rocks are different in different places and at different times. This is because varied organisms lived there and produced the carbonate. Also various events happened, like underwater landslides and earthquakes, which disrupted the beds. Sometimes the deposition of carbonate was interrupted, and different organisms produced silica, which we see as beds of chert.

Common rock
* Most common rocks are about half oxygen by weight.
* formed are carbonates, rock salt, and gypsum.

Cretaceous rock
* cover most of the state between the Red River Valley and Missouri River.
* dip gently away from the central uplift and form the outer rim of the structure.

Devonian rock
* are normally unfossiliferous shales, cherts, and sandstones.
* outcrop at less than three percent of the surface of the United States.

### rock:

Extrusive rock
* are concordant with the sedimentary strata upon which they are deposited.
* cool above ground and cool in a shorter time than Intrusive rocks below ground
  - quickly on or very near the surface of the earth
  - rapidly because they solidify at Earth's surface
* form from magma that reaches the Earth's surface and then cools rapidly
  - when magma flows onto the surface of the earth or ocean floor
* have crystals that are too small to see without magnification.
* is fine grained
  - formed when the solidification process occurs at or near the ground surface
* make it to the surface to form either pyroclastic material or lava flows.

Funk rock
* fusion of funk and rock.
+ Funk rock, Characteristics: Fusion music genres
  * Funk rock is a fusion of funk and rock. Many instruments may be incorporated into the music, but the overall sound is defined by a definitive bass or drum beat and electric guitars.