Collagen content dating

Fig.3a shows the Triceratops femur dissection using carefully cleaned saw with the bone supported by wood frame and plaster of Paris cast.

Identification of the femur was made by comparing with photos and descriptions from a standard paleontology text-book and comparison with a young adult femur, 107 cm long.

Photos were unavailable for the Hadrosaur femur excavation. 1a -1d (right) shows the sequence of extracting the Triceratops femur.

In Fig.1-d it rests on the pedestal of earth after excavation and before adding the protective coating. 1a to 1d as the Triceratops femur bone was being extracted from about 1 m in depth, which was about 20 m below the top of the Montana Badlands [60 m of strata designated Cretaceous].

A date of ~26,000 years BP was obtained for bones that were devoid of collagen. Some examples from many references include: marble, 0.060-0.932 PMC, A. Controversial radiometric dates have been recorded for material from Hawaiian volcanic eruptions in 1800-1801 and the Hawaiian magma there gave dates of 1.41 and 1.60 million years BP according to G. Moreover, natural diamonds thought to be "greatly in excess of 100 million years" gave apparent variable RC dates of "64.9 ± 0.4 ka BP to 80.0 ± 1.1 ka BP.The age of the clay was estimated to be between 5000-50,000 years old by J. All were less than 40,000 RC years except for 21; most of the latter 21 were about the same age as for unfossilized wood from drill core samples deep in the permafrost of Prudhoe Bay Alaska: (a) 43,380 ± 380 RC years at 60m depth Vasil'chuk et al. Agenbroad, "The warm spring waters that infiltrated the sinkhole leached out the collagen in the bones." The RC ages for a musk ox carcass frozen in Alaskan, USA, muck gave dates of 24,140 ± 2200 years and 17,210 ± 500 RC years BP respectively for scalp muscle tissue and hair according to R. One case in point came from the study of tektites in Victoria, Australia [Lake Torrens and Lake Eyre regions] called australites. Younger ages for fission tracks were ascribed to partial annealing of fission tracks by reheating on the earth's surface. concluded: "Although RC ages were inconsistent, field work on geology of australite occurrences favored the ‘younger' C-14 age of charcoal believed associated with australites, as well as geologic evidence, indicated age between last glacial and 6000-7000 BP." 50 times younger RC dates suggest that a major asteroid impact occurred in that region only several thousand years ago not 800,000 years BP. RC dating of core drilling specimens from the more famous Chicxalub crater in the Yucatan Peninsula of Mexico should also be RC dated since the explosion of the volcano or asteroid that produced that crater is thought to have caused the supposed demise of the dinosaurs 65 millions years ago.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.Perhaps the most informative documentation of Figs.1 and 2 is that they show the sequence of excavating a 122 cm long Triceratops femur from discovery, to pedestal, to plaster, to separation. Photos 3a-3c are of Triceratops femur bone during and after sawing; photo 3d is a portion of Glendive MT Dinosaur and Fossil Museum field research station; photomacrograph 3e is of material from bone interior containing bone collagen.

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  1. Wir danken Euch für die langjährige Treue und hoffen, Euch bald eine Nachfolgelösung präsentieren zu können - bitte schaut bis dahin regelmässig vorbei.