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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
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| Below are descriptions of 6 samples, with known ages expressed as either AD or BC (also called BCE). Convert these dates to BP dates (using 1950 as "the present.") Also, convert the three estimates of C-14 years in the second table to BP dates. | ||
| Some materials with known age | BP Age | |
|---|---|---|
| 1. | Douglas Fir tree rings - excavated from a cave in Arizona. Date: 577 ± 50 years AD |  |
| 2. | Wood from Egyptian coffin - from the Ptolemic period based on style. Date: 200 ± 150 years BCE |  |
| 3. | Wood fragments from the floor of a palace in Syria - Syro-Hittite period. Date: 675 ± 50 years BCE |  |
| 4. | Giant Sequoia tree rings from California. Date: 979 ± 52 years BCE |  |
| 5. | Cedar of Lebanon fragments from funeral boat of Egyptian King Sesostris III. Date: 1843 ± 50 years BC |  |
| 6. | Wood from the tombs of Egyptian Kings Sneferu and Zoser. Average Date: 2650 ± 75 years BCE |  |
| Assuming this is 1999, convert these ages into BP dates. Example: an article that's 1000 years old has a BP age of 951. [BP = Age - (Today -1950) = 1000-(1999-1950) = 951] | ||
| Age | BP Date | |
| 7. | Wood from Bristlecone Pine of White Mountains, California. Age 4731 ± 75 years |  |
| 8. | Pleistocene mammoth bone from La Brea Tar Pits of Los Angeles, California. Age: 12,200 ± 35 years |  |
| 9. | Cottage roof timber from Ireland. Date: 906 ± 35 years | |
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