The group of tar pits that are located around where Hancock Park was made within the urban area of Los Angeles, California. The natural tar or asphalt of this area has come up from below ground within the area for over thousands of years. This tar can be covered in a dust, water or leaves. Over the centuries, the tar had preserved the animal bones that were often trapped inside of the tar.

The name La Brea in Spanish actually means the tar. So, an example of tautological place name is going to be La Brea Tar Pits which literally is translated to mean the tar-tar pits.

Hancock Park and the Tar Pits are arranged inside what was at one-time part of a land grant from Mexico that was called Rancho La Brea; however, it is considered to be part of the Los Angeles urban area which is located near Miracle Mile, nearby the Craft and Folk Art Museum and the Los Angeles County Museum of Art.

The tar pits noticeable today is really from human uncovering. The lake pit was initially a black-top mine. Alternate pits obvious today was delivered in the vicinity of 1913 and 1915, when more than 100 pits were unearthed looking for expansive vertebrate bones. Different mixes of waggler and asphaltum have since filled in these gaps. Ordinarily, the black-top shows up in vents, solidifying as it overflows out, to frame squat hills. These can be found in a few zones of the recreation center.

Tar pits are made out of substantial oil parts called gilsonite; this is an oil that will come from the middle of the Earth. Within Hancock Park, there is a lot of crude oil that will come up following the fault at 6th street which is considered to be part of the area of Fairfax which is located north of Hancock park. The oil achieves the surface and structures pools at a few areas in the recreation center, getting to be black-top as the lighter divisions of the oil biodegrade or dissipate.

This leakage has been going on for a huge number of years. Every now and then, the black-top would frame a store sufficiently thick to trap creatures, and the surface would be secured with layers of water, clean, or takes off. Creatures would meander in, end up plainly caught, and in the long amazing. Predators would enter to eat the caught creatures and furthermore wind up noticeably stuck.

As the bones of dead creatures sink into the black-top, it drenches into them, turning them a dim darker or dark shading. Lighter parts of oil vanish from the black-top, leaving a very strong substance, which encases the bones. Sensational fossils of expansive warm-blooded creatures have been removed from the tar, yet the black-top likewise safeguards microfossils: wood and plant leftovers, rat bones, creepy crawlies, mollusks, tidy, seeds, leaves, and even dust grains. Cases of some of these are in plain view in the George C. Page exhibition hall. Radiometric dating of protected wood and bones has given an age of 38,000 years for the most seasoned known material from the La Brea leaks. The pits still trap life forms today, so the vast majority of the pits are fenced to ensure people and creatures.