In petroleum geology, source rock refers to rocks from which hydrocarbons have been generated or are capable of being generated. They form one of the necessary elements of a working petroleum system. They are organic-rich sediments that may have been deposited in a variety of environments including deep water marine, lacustrine and deltaic. Oil shale can be regarded as an organic-rich but immature source rock from which little or no oil has been generated and expelled.

Source rocks are classified from the types of kerogen that they contain, which in turn governs the type of hydrocarbons that will be generated.

With increasing burial by later sediments and increase in temperature, the kerogen within the rock begins to break down. This thermal degradation or cracking releases shorter chain hydrocarbons from the original large and complex molecules found in the kerogen.

The hydrocarbons generated from thermally mature source rock are first expelled , along with other pore fluids, due to the effects of internal source rock over pressuring caused by hydrocarbon generation as well as by compaction. Once released into porous and permeable carrier beds or into faults planes, oil and gas then move upwards towards the surface, an overall buoyancy driven process known as secondary migration.

Christopher Julius "Chris" Rock III (born February 7, 1965) is an American comedian, actor, screenwriter, television producer, film producer, and director.

After working as a standup comic and appearing in small film roles, Rock came to wider prominence as as a cast member of Saturday Night Live in the early 1990s. He went on to more prominent film roles, and a series of acclaimed comedy specials for HBO.

He was voted in the US as the 5th greatest stand-up comedian of all time by Comedy Central. He was also voted in the UK as the 9th greatest stand-up comic on Channel 4's 100 Greatest Stand-Ups in 2007, and again in the updated 2010 list as the 8th greatest stand-up comic.

Rock was born in Andrews, South Carolina. Shortly after his birth, his parents moved to Crown Heights, Brooklyn, New York. A few years later, they relocated and settled in the working-class area of Bedford-Stuyvesant, Brooklyn. His mother, Rosalie (née Tingman), was a teacher and social worker for the mentally handicapped; his father, Julius Rock, was a former truck driver and newspaper deliveryman. Julius died in 1988 after ulcer surgery. His younger brothers Tony, Kenny and Jordan are also in the entertainment business. His older half-brother, Charles, died in 2006 after a long struggle with alcoholism. Rock has said that he was influenced by the performing style of his paternal grandfather, Allen Rock, a preacher.

Enchanted Rock (16710 Ranch Rd 965, Fredericksburg TX) is an enormous pink granite pluton rock formation located in the Llano Uplift approximately 15 miles (24 km) north of Fredericksburg, Texas, USA and 15 miles (24 km) south of Llano, Texas. Enchanted Rock State Natural Area, which includes Enchanted Rock and surrounding land, spans the border between Gillespie County and Llano County, south of the Llano River. Enchanted Rock covers approximately 640 acres (260 ha) and rises approximately 425 feet (130 m) above the surrounding terrain to elevation of 1,825 feet (556 m) above sea level. It is the largest such pink granite monadnock in the United States. Enchanted Rock State Natural Area, a part of the Texas state park system, includes 1,644 acres (665 ha). Designated a Recorded Texas Historic Landmark in 1936.

The prominent granite dome is visible for many miles in the surrounding basin of the Llano Uplift. The weathered dome, standing above the surrounding plain is known to geologists as a monadnock. The rock is actually the visible above-ground part of a segmented ridge, the surface expression of a large igneous batholith, called the Town Mountain Granite of middle Precambrian (1,082 ± 6 million years ago) material that intruded into earlier metamorphic schist, called the Packsaddle Schist. The intrusive granite of the rock mass, or pluton, was exposed by extensive erosion of the surrounding sedimentary rock, primarily the Cretaceous Edwards limestone, which is exposed a few miles to the south of Enchanted Rock

Bob Brock (born July 13, 1963, Livermore, California) (Better known by his stage name Bobby Rock) is a Los Angeles based rock drummer. He was a student of the Berklee School of Music in Boston, Massachusetts and has worked with several bands.

Rock first came into national awareness with the Vinnie Vincent Invasion. Following his two album/tour stint with Vinnie Vincent he recorded with Nitro before joining the band Nelson. He would then go on to work with the bands Brunette and Hardline. He reunited with former Vinnie Vincent Invasion bandmates Mark Slaughter and Dana Strum, when he toured with Slaughter, filling in for drummer Blas Elias who had prior commitments to performing with the Blue Man Group in Las Vegas.

Recently Rock has also played with Gary Hoey and the metal band Carnival of Souls, and continues to travel the country doing drum exhibitions.

Rock has also released material as a solo artist on his own record label, Paranormal Records. The first release, 1994's Groovin' in Tongues is an EP featuring some original songs along with some cover versions such as "Climbing Up The Ladder" and "Frankenstein". This was a tribute to his time spent playing with some hardcore funk bands at Lyons Ave., better known as Houston, Texas's Fifth Ward following his studies at the Berklee. It also features a reworking of a drum solo entitled "Pedal to the Metal" from his Metalmorphosis video as this version also features a full band playing along to what was previously only a drum solo.

Robert Clark "Bob" Seger (born May 6, 1945) is an American rock and roll singer-songwriter, guitarist and pianist.

As a locally successful Detroit-area artist, he performed and recorded as Bob Seger and the Last Heard and Bob Seger System throughout the 1960s. By the early 1970s, he had dropped the "System" from his recordings, and he continued to strive for broader success with other various bands. In 1973, he put together The Silver Bullet Band, an evolving group of Detroit-area musicians, with whom he became most successful. In 1976, he achieved a national breakout with the album Night Moves. On his studio albums, he also worked extensively with the Alabama-based Muscle Shoals Rhythm Section, which appeared on several of Seger's best-selling singles and albums.

A roots rocker with a classic raspy, shouting voice, Seger wrote and recorded songs that dealt with blue-collar themes and was an exemplar of heartland rock. Seger has recorded many hits, including "Night Moves", "Turn the Page", "We've Got Tonight", "Against the Wind", and "Like a Rock", and also co-wrote the Eagles' number-one hit "Heartache Tonight". His iconic recording of "Old Time Rock and Roll" was named one of the Songs of the Century in 2001.