... Science Frontiers ONLINE No. 21: May-Jun 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Hueyatlaco Dilemma Beds containing human artifacts at Valsequillo, Mexico, have been dated at approximately 250,000 years before the present by fission-track dating of volcanic material and uranium dating of a camel pelvis. The dilemma posed by such dates is clearly stated in the following quotation from the conclusions of the subject article. "The evidence outlined here consistently indicates that the Hueyatlaco site is about 250,000 yr old. We who have worked on geological aspects of the Valsequillo area are painfully aware that so great an age poses an archeological dilemma. If the geological dating is correct, sophisticated stone tools were used at Valsequillo long before analogous ... are though to have been developed in Europe and Asia. Thus, our colleague, Cynthia Irwin-Williams, has criticized the dating methods we have used, and she wishes us to emphasize that an age of 250,000 yr is essentially impossible." (Steen-McIntyre, Virginia, et al; "Geologic Evidence for Age of Deposits at Hueyatlaco Archeological Site, Valsequillo, Mexico," Quaternary Research, 16:1 , 1981.) Comment. The above impasse is reminiscent of Lord Kelvin's insistence that the earth is only about 100,000 years old based upon his calculations of the sun's energy-producing capabilities. Geologists thought otherwise, requiring roughly a billion years for nature to sculpt the earth they saw. Kelvin didn't reckon on nuclear energy ...
Terms matched: 2 - Score: 87 - 15 May 2017 - URL: /sf021/sf021p02.htm
... Footprints of Gods, etc. El Salvador Laetolil/Tanzania Warrnambool Russia With Dinosaurs, AZ Ax and Saw marks on Fossil Trees Coalified stumps MMF FLINT ARTIFACTS Ancient Siberian Tools Monte Verde Pre-Clovis in North America Stone Ax in Sandstone, AR Orogrande, NM Pedra Furada Ancient Tools (Africa, Japan, Europe) Eccentric Flints Ancient African Tools Tools on Continental Shelf Pedra Pintada Calico Eoliths Valsaquito/Hueyatlaco Meadowcroft San Diego/La Jolla Sheguiandah El Jobo, Venezuela Pigmy Flints Pebble Tools, GA, AL Old Crow Flints, Tools in Ancient Strata Large Caches of Flints Texas Street Miocene Man Artifacts Amazon Cultures Tools in Oceania (Homo erectus) Quebrada Jaquay MMM METAL ARTIFACTS Salzburg Cube (Dr. Gurlt's ) Gold "Airplanes" Greek in South America Roman, Chinese Aluminum [MMT] ... Fossils in the New World? Wyoming Mystery Mummy Evidence of Ancient Cannibalism Kennewick Man and Similar Recent Discoveries Rats in New Zealand That Suggest Pre-Maori Occupants Teeth and Ainu Origin Controversial Guadeloupe Skeleton Fossils Supporting the Multiregional Theory Ancient Horse-Cribbing Polynesian Fossils in the New World South American Fossils in New Zealand Babirusa Bones in Canada Humans and Domesticated Ground Sloths Trepanation Yuha Burial Problem Human Hair at the Orogrande Site Pygmy Skeletons Chinese Fossils in Australia Giant Skeletons [BHE] Neanderthal Fossils and Speech Santa Barbara Fossils Taber Skeleton (Canada) Eskimo Fossils in France Blond Mummies in Peru Red-Haired Mummies in Nevada [MAA] Santa Rosa Mammoths and Hearths MAK CULTURE Precocious Number Systems and Mathematics Agriculture and Culture Decline Navigational Techniques Ancient Cosmologies and Astronomy Music, Arts, Literature Measurement Systems Paper-Making Diffusion Olmec ...
Terms matched: 2 - Score: 29 - 15 May 2017 - URL: /cat-arch.htm
