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The Watcher always enjoys the bizarre relationship captions that “TAR” provides the pairings.We don’t have anything quite so charming as Dating Goths or Dating 12 Years/Virgins this season, but we do have the first incidents of Home Shopping Hosts, Birth Mother/Daughter and Ivy League A Cappella Singers.Nonetheless, dinosaur bone apatite had been successfully RC dated in the late 1980's/early 1990's and significant amounts of C-14 were detected and reported.The data was challenged by Thomas Stafford as poor science due to assumed contamination from modern C-14 with younger surficial calcium carbonate.Having missed out on its eighth-straight Emmy, “The Amazing Race” had nothing else to do this week than take the wraps off the cast for its upcoming 17th season.

The skull was found in a carefully-constructed cist, or stone box grave, during excavations in 1851.On the other hand, the sentence that relates to (E) is that 50-54 where it says "...using lichenometry requires careful site selection..." etc. Shouldn't that indicate that any situation that doesn't meet that requirement limits the usefulness of lichenometry? We know that those affects listed in the final paragraph have to be factored in, but we cannot say that lichenometry's usefullness would be of limited to areas where those affects do not occur.The reason why answer choice (B) is supported is that radiocarbon dating works by dating organic matter - which is described in the first paragraph. for Lichenometry we know it is best used for earthquakes that occurred within the last 500 years so 400 years leaves some room for this answer to be wrong.When it was learned in 2005 that Triceratops and Hadrosaur femur bones in excellent condition were discovered by the Glendive (MT) Dinosaur & Fossil Museum, Hugh Miller asked and received permission to saw them in half and collect samples for C-14 testing of any bone collagen that might be extracted.Indeed both bones contained collagen and conventional dates of 30,890 ± 380 radiocarbon years (RC) for the Triceratops and 23,170 ±170 RC years for the Hadrosaur were obtained using the Accelerated Mass Spectrometer (AMS).

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