Pleistocene mammoth bone from La Brea Tar Pits of Los Angeles, California. Age: 12,200 ± 35 years. What the BP Date?

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To determine the BP date (Before Present) for the Pleistocene mammoth bone from the La Brea Tar Pits of Los Angeles, California, we need to subtract the age (in this case, 12,200 years) from the present year.

Considering that the present year is 2022, the calculation would be as follows:

2022 (present year) - 12,200 (age of the mammoth bone) = 10,822 BP

So the estimated BP date for the mammoth bone would be approximately 10,822 BP.

To find the BP (Before Present) date based on the given age of 12,200 ± 35 years, we need to understand what BP means. BP is a time scale used in archaeology, geology, and other scientific disciplines to represent the number of years ago a particular event or time period occurred. The "present" in the BP scale refers to the year 1950.

To calculate the BP date for the Pleistocene mammoth bone from La Brea Tar Pits in Los Angeles, California, you need to subtract the given age (12,200 years) from the reference year (1950) and consider the given uncertainty of ±35 years.

Calculating the BP date:
1950 - 12,200 = 10,750 BP (minimum estimate)
1950 - (12,200 + 35) = 10,715 BP (maximum estimate)

Therefore, based on the given age range and using the reference year of 1950, the Pleistocene mammoth bone from La Brea Tar Pits in Los Angeles, California, has a BP date between 10,750 and 10,715 years BP.

The BP age is 12142.