Is carbon dating advisable for measuring the age of
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.This is on private land in Dawson County, Montana being located in the NW ¼ of NE ¼, Sec. The location of this RC dated Triceratops singular femur bone is just over 2.4 km east southeast from Otis Kline's 37 acre research station that has been geologically mapped. The elevation appears to be the same as the Triceratops being excavated on Kline's "Lone Ridge" for the past three summers where no femur bones were discovered.Possibly the RC dated femur bone belongs to the Triceratops remnants from "Lone Ridge." Thus testing for C-14 in other bones seems to be the next step in the ongoing research.Your access to the NCBI website at gov has been temporarily blocked due to a possible misuse/abuse situation involving your site.This is not an indication of a security issue such as a virus or attack.The Hadrosaur location was in a dry wash which flows into Frank Creek, then into Glendive Creek and then into the Yellowstone River just North of Glendive Montana in the NW ¼, NE ¼ of Sec.32, T16N, R56 E, Dawson County, Montana about 13 km south-east of the Triceratops location according to Otis Kline (2). 1 and Fig 2 were taken during excavation for the Triceratops femur.
summarized these extensive mammoth RC dating studies but collagen content was not discussed. reported on C-14 dating of small mammoths on Wrangell Island in the Arctic Ocean north of Siberia: The eight mammoth bones, tusks and teeth gave RC ages at 4000 to 5000 RC years BP using purified collagen. Three dacite components from the final lava flow of A. Furthermore, fossil materials other than dinosaur bones and amber that should be free of C-14 but contain significant amounts include anthracite coal, fossil natural gas, fossil wood and marble resulting from the metamorphism of limestone.In light of the discovery of soft tissue in a T-Rex from the Montana Hell Creek Formation and RC dates for other fossils in the geological record it was decided to examine the bone interior of this femur, as Libby's team did with Smilodon and Schweitzer et al. 2a to 2d shows the support system including Plaster of Paris and wooden support base.did with the T-Rex "hind limbs." The Triceratops femur bone was discovered in what is called "popcorn clay." Since the bone was so huge (122 cm long and 20 cm through the shaft area) and completely intact [hard, and neither crushed nor deformed, ideal for extracting possible bone collagen] it was sawed open in late July 2005 near the proximal end, as shown in Fig. The Triceratops femur was resting on a layer of popcorn clay in an apparent, almost aseptic sand and fine clay matrix.It could be something as simple as a run away script or learning how to better use E-utilities, for more efficient work such that your work does not impact the ability of other researchers to also use our site.To restore access and understand how to better interact with our site to avoid this in the future, please have your system administrator contact [email protected]
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Geology of the Triceratops and Hadrosaur excavation sites: The Triceratops and Hadrosaur femurs were found in popcorn clay. The color varies from grey to grey-green to green to tan; it is found in distinct thick strata.