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Search results for: radiocarbon in all categories
445 results found.
45 pages of results. 131. A Chronology for the Eighteenth Dynasty [Journals] [SIS Review]
... of the 9th century BC (5 ). The evidence on which previous reconstructions of ancient history have been based can be divided into five main categories: - 1. Contemporary monumental and inscriptional material. 2. Synchronisms established with neighbouring countries. 3. King lists and chronicles originating from later periods. 4. Astronomical data. 5. Radiocarbon and other recently developed dating methods. The value of each of these main types of evidence is discussed below. 1. The monumental and inscriptional material from Dynasty XVIII is rich but far from comprehensive. The rulers of this period were not concerned to establish objective historical truth, but to glorify themselves and magnify their achievements. No pharaoh ...
132. The Extinction of the Mammoth by Charles Ginenthal (Book Review). C&C Review 2002:1 [Journals] [SIS Review]
... factor which many completely ignore: it is not just the temperature but also the day length within the Arctic (and Antarctic) Circle which makes it impossible for all these animals and plants to have lived at this latitude. This all calls into question the very idea of ice ages and warmer interstadials, as currently explained. Convention says that radiocarbon dates support the idea that the mammoths died out at the end of the Ice Age, around 10,000 years ago. Ginenthal details problems with radiocarbon dating interpretation in general and how, in this instance, it is in direct conflict with pollen analysis from Arctic lakes during the period of the Ice Age'. This shows that ...
133. Evidence for the Marine Deposition of Coal [Journals] [SIS Review]
... to rot." (p . 41) Surprising implications for the study of coal formation have come from the application of some radiometric dating techniques. The main period of coal deposition (Upper Carboniferous /Pennsylvanian) is thought to have ended 280 million years ago. Yet fossilised wood and coal from a Carboniferous deposit in Spain were subjected to radiocarbon tests and produced the seemingly incredible results of 5025, 3930 and 4250 years bp (GIF 198-278, Radiocarbon Vol. 8, 1966). The fact that the samples produced a result at all, rather than the dates in themselves, is significant; theoretically the tests should have given an "infinite" reading, as the limits ...
134. Times And Dates. Ch.12 The Ruins Of The East (Earth In Upheaval) [Velikovsky] [Velikovsky Earth in Upheaval]
... Claude Jones of the lakes of the Great Basin showed that these lakes, remnants of larger glacial lakes, have existed only about 3 500 years, and also that the Ice Age fauna survived to a date equally recent. Gale obtained the same result on Owens Lake in California and also Van Winkle on Abert and Summer lakes in Oregon. Radiocarbon analysis by Libby also indicates that plants associated with extinct animals (mastodons) in Mexico are probably only 3 500 years old. Similar conclusions concerning the late survival of the Pleistocene fauna were drawn by various field workers in many parts of the American continent. Suess and Rubin found with the help of radiocarbon analysis that in the mountains of ...
135. The McMaster University Symposium - June 1974 [Journals] [SIS Review]
... the same direction. The claimed lunar sites however are altogether more complex and if they are genuine, their good fit with the present orbit extrapolated backward cannot easily be reconciled with the idea of a later disruption of that orbit. Another colloquium at McMaster dealt with the dating methods and catastrophism - a crucial problem since the underlying assumption of the radiocarbon and other radioactivity dating methods is that the decay rates of the elements concerned have always been constant. J. L. Anderson and G. W. Spangler, of the Physics and Astronomy Departments, University of Tennessee, and H. C. Dudley, professor of radiation physics at the University of Illinois, reviewed the possibility that ...
136. Forum [Journals] [SIS Review]
... so long conditioned in a uniformitarian system that it is difficult to speculate about what will happen when we drop the assumptions. DR HAN KLOOSTERMAN Rio de Janeiro Calibration I think it important that those historians and scholars who favour Dr Velikovsky's revised chronology for the history of ancient Egypt and Palestine should get to grips with the problems presented by the numerous radiocarbon dates now available for sites and objects of the periods and from the places affected. In the issue of Pensee for Spring/Summer 1973 (vol. 3 No. 2) Professor Albert Burgstahler and myself presented the C-14 dates concerned and discussed them. They were also set out as an easily comprehensible chart. The obvious conclusion is ...
137. Megalithic Astronomy [Journals] [SIS Review]
... plane and has a declination of 0 . North declinations are+- the north celestial pole being at + 90- and south declinations are-. 2 In this article it is assumed that the tree-ring calibration of carbon-14 dates (see E. K. Ralph, H. N. Michael &. M. C. Han: "Radiocarbon Dates and Reality" MASCA Newsletter, 8/63,1-18) is basically reliable: terrestrial calendar years arrived at by this calibration are given as B.C . ', whilst "radiocarbon years" are written with b.c . ' DR E. W. MACKIE is Assistant Keeper, Hunterian Museum, University of Glasgow ...
138. Recent Developments in Near Eastern Archaeology [Journals] [SIS Review]
... pharaoh of the 18th Dynasty) as has long been advocated by Peter Warren (e .g . JACF 4 pp. 29-29) and others (e .g . Foster & Ritner, JNES 55, reported in C&CR 1996:1 p. 36). This is the latest time that can be matched to the numerous radiocarbon dates from Thera because after 1530 the calibration curve drops sharply. A flatish part of the calibration curve allows the raw radiocarbon dates to calibrate over a wide range from the 17th century to 1525BC, although with greater probability of a 17th century date. However, even this 1525BC date can only be achieved by pulling out all the stops ...
139. Monitor [Journals] [SIS Workshop]
... (for estimation of the depth of the forest layer and for analysis of its contents) and to perform some simple but clear laboratory experiments to test hypotheses. Their results showed two forest layers marked by pine cones 7m apart and separated by blue clay. They concluded that the forests had been drowned by the sea on two occasions. A radiocarbon date for forest material was performed by Prof. Mitchell of Trinity College Dublin and gave a result of 4800 BC. In a delightful observation, they recorded how one of the pine cones brought back from the forest, washed and scrubbed and left alone on a school bench happened to open out some weeks later. This was never explained ...
140. Indians of Illinois [Books] [de Grazia books]
... would be any calcinated debris of settlements, and in this area of America, any huge aqueous intrusions or lava flow. If this set of questions is answered in a way tending to support the possibility of neartime catastrophe, that is, between 3,000 and 600 B.C ., then there still remains the defiant evidence of radiocarbon dating. These data, as given, are often irregular and sometimes conflicting. At Modoc, for instance, Stratum 3 which goes from 15.3 feet (below the ploughline?) to 22.3 feet moves from 3314 B.C . to 9246 B.C . or 6,000 years more or less in ...
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