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76 pages of results.
151. Geomagnetic Effects of an Earthwide Event in 2300BC [Journals] [SIS Review]
... relative rotation rate of the Earth's crust and mantle sufficiently to disrupt the convective cells that produce the dynamo. The result would be a rapid reduction and rebuilding of the dynamo, producing the reversal or excursion. They postulated an impact from a large asteroid as causing the colder climate and presented correlations of impacts in the past with reversals, mass extinctions and microtectites. They also felt that volcanic eruptions could be considered to be causal agents for a geomagnetic reversal or excursion. A number of other investigators have found correlations between geomagnetic reversals and faunal extinction . None of them have been able to explain how the change in geomagnetic field would be able to directly cause the extinctions ...
152. The Great Debate [Journals] [Catastrophism & Ancient History]
... the fossil records, "blank intervals" during which the slow evolutionary process could be observed. He then asserted that although the fossil record was incomplete it nevertheless revealed many examples of organismic variation and modification in the past. Fossils, he concluded, are evidence that the forms of life have changed throughout history and that some species have become extinct while others have survived. Of course, no sensible person would question Darwin's conclusion; the controversy arises over his contention that the main or only agent responsible for evolutionary process is natural selection. Darwin wrote The Origin of Species primarily to put to rest the doctrine of catastrophism. He fully expected the biggest objections to his book to come ...
153. Monitor [Journals] [SIS Workshop]
... burial and preservation, or even of tidal waves depositing the remains en masse. ALVAREZ THEORY GAINS SUPPORT - SCIENCE 209 22/8 /80, p.921-3 NATURE 288 18-25/12/80, p.651-6 SCIENCE 210 31/10/80, p.514-7 We have reported the renewed interest in the cause of the extinctions at the end of the Cretaceous Period (when the dinosaurs died off) in WORKSHOP 2:4 and successive issues since. One theory seems to be gaining widespread support, the catastrophist ideas of Alvarez et al that 65 million years ago Earth was struck by a giant meteor/asteroid. In SCIENCE 22/8 /80 there ...
154. Mammoth Update: A Reply to Ellenberger (Forum) [Journals] [Kronos]
... From: Kronos Vol. VII No. 4 (Summer 1982) "Evolution, Extinction, and Catastrophism" Home | Issue Contents Forum Mammoth Update: A Reply to Ellenberger To the Editor of KRONOS: May one whose name was mentioned several times in a letter to your journal,(1 ) about the Frozen Mammoth Controversy, reply to the points made in that letter? [Leroy] Ellenberger remains unconvinced that mammoths were able to tolerate extreme cold, and his argument rests heavily on Neuville's observation that the skin of these creatures lacked certain "oil-glands" and on John White's sweeping statement that such glands are possessed by every extant arctic animal.(2 ) The ...
155. Carl Sagan & Immanuel Velikovsky [Books]
... * Cometary magnetism * Lineaments Sagan's fourth problem: Terrestrial Geology And Lunar Craters Earth in upheaval * The end of the ice age * Climate evidence * Volcanoes * Geomagnetic reversals * Mountain building * Mammoth bones C14 * When was the moon last molten? * Dust * Thermoluminescence tests * Dust again * Craters on earth * Global flooding * Gaunal extinctions * C14 dating the extinctions * Art and drawings of extinct animals * Uniformitarian causes * Alaska and Canada * Siberia * Ipiutak * The bronze age in Siberia * Lakes of the Great Basin * La Brea tar pit * Florida * Agate spring quarry, Nebraska * Elephants * South America * Arctic muck * Whales * Archaeology * The Columbia ...
156. Monitor [Journals] [SIS Review]
... the last Ice Age, the archipelago of St. Kilda off the West Coast of Scotland was one large, mountainous island. South Eastern Alaska was supposed to be under ice at this time but remains in a cave indicate that plants and animals were still thriving there. Another cave in Belize, Central America, contains the bones of an extinct bear, 10,000 years old, which indicate that the area was drier and less tropical than thought to be at the end of the Ice Age. On the other hand, around 20,000 years ago tropical South America was supposed to have been very dry but analysis of sediments from Lake Titicaca indicates that it was in ...
157. Monitor [Journals] [SIS Review]
... has been lost in the last 11,000 years and one scientist predicts that it will be gone within another 5000 years. The northernmost surviving ice shelf lost a huge chunk last summer. CATASTROPHE Back to the supernova New Scientist 4.4 .98, p. 20, Scientific American Aug. 98, p. 14 The Permian extinction was one of the Earth's greatest catastrophes. Dating and analysis of rocks now shows that the extinctions took place in less than one million years, far too quickly to have been caused by moving continents as one explanation would have it. Another geologist claims to have found debris in rocks of the period which appear to have come from an ...
158. Monitor [Journals] [SIS Review]
... rotation, which could be accounted for if it had a moon, but astronomers were baffled because they could not find one. This is no longer a problem because they have invented a new class of celestial object to fit the bill, possibly the darkest body in the solar system .. . it must be more like a gigantic, extinct comet than a planetary body. ' And Velikovsky is dismissed for wild speculation! ELECTROMAGNETISM Sun Surface Jets (New Scientist, 31.7 .04, p. 14) Acoustic vibrations are popular with astronomers to explain wave patterns on the surface of the Sun, but the periodicity of these match that of massive jets of material which ...
159. Palaeontology and Evolution [Books]
... first vertebrate animals (with backbones) are found only in the Devonian system. The first amphibia appear during the Carboniferous. Ammonites (a kind of Molluscs.) are not found before the Permian. The first dinosaurs and flying creatures appear during the Trigs. Some species utterly disappeared. For example, the end of the Cretaceous saw the extinction of all kinds of dinosaurs and ammonites. The woolly elephant (mammoth) utterly disappeared at the end of the Pleistocene. The examination of the world of fossils (incompletely summarized above in an over-simplified manner), coupled with biological studies, gave birth to different theories about the evolution of life. Without going into details, it may ...
160. Monitor [Journals] [SIS Workshop]
... out simply because they become out of date' and are replaced by their more efficient competitors over long periods of time, is not an adequate explanation. There is increasing evidence that major physical changes have caused more large-scale evolutionary changes than has competition." It is undisputed that many times in the history of the world there have been major extinction events and now the traditional "competitive" explanations "have been questioned by a closer study of the fossil record". It is suggested that the alternative explanation of random extinctions and survivals "is probably applicable to many major replacements" (see also Workshop 3:4 , pp. 18-19). Although random extinctions are seen to ...
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