19 results found.
... Science Frontiers ONLINE No. 53: Sep-Oct 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Tsunami And A Peruvian Cultural Glitch We quote from the abstract of a paper by R.M . Bird from American Antiquity. "While investigating the archaeological background of early maize on the coast of Peru, I realized that several factors affect interpretation. The estimated date for the start of common use of maize there is close to the apparent dates of a large tsunami, the abandonment of many coastal sites, and the start of occupation at Chavin de Huantar in the highlands. While investigating the possible relations between the principal pretsunami coastal culture and Chavin, I discovered that depictions of a monstrous head link the two cultures." The "monstrous head" is thought by the Bird to be a stylized representation of a tsunami wave. Not mentioned at all in the abstract are the physical evidences of tsunami damage along the Peruvian coast. This article portrays the possible effects on the ancient manmade structures in the region as well as the widespread deposits of sand, cobblestones, and other sediments. (Bird, Robert McK.; "A Postulated Tsunami and Its Effects on Cultural Development in the Peruvian Early Horizon," American Antiquity, 52:285, 1987.) Profile of a north-south site trench at a a site on the Peruvian coast, showing thick strata that may have been deposited by a tsunami. From Science Frontiers #53, SEP-OCT 1987 . 1987-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 121: Jan-Feb 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects An Arkansas Tsunami Deposit?Yes, Arkansas is hundreds of kilometers from any ocean. Could a tsunami ever reach Little Rock, or even 120 kilometers northeast of Little Rock where, atop a 76-meter (250-foot) hill are perched giant blocks of sandstone. These blocks range up to 7.6 meters (25 feet) in size and weigh many tons. No native rocks in the area match them. The Ice Age glaciers never reached Arkansas, so they can't be glacial erratics. Where did they come from? One clue is the presence of glauconite in the sandstone. Glauconite is common in marine rocks, so suspicion points toward the Gulf of Mexico. Geologist G. Patterson, University of Memphis, thinks that the huge chunks of sandstone came from coastal Louisiana and were carried some 650 kilometers (400 miles) inland by the giant tsunami raised by the asteroid or comet that smashed into the Yucatan to close out the Cretaceous. That, of course, was when the dinosaurs were forced into oblivion. But could the tsunami really have transported such huge rocks 650 kilometers? (Falk, Dan; "Washed Up," New Scientist, p. 26, November 7, 1998.) Comments. Tsunami debris from the end-Cretaceous impact has been found along the Gulf Coast and on some Caribbean islands. In northeastern Mexico, geologists have found a debris layer 3-meters thick that ...
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... Science Frontiers ONLINE No. 39: May-Jun 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Tsunami Tune Tsunamis are giant sea waves set into motion by earthquakes on the sea floor. Some 322 tsunamis have been recorded in the Pacific between A.D . 83 and 1967 -- or about one every six years on the average. The surprising thing is that tsunamis are more common in November, August, and March, but rarer in July and April. Offhand, no good explanation comes to mind why sea floor quakes should favor some months over others. (Anonymous; "The Times for Tsunamis," Science News, 127:88, 1985.) From Science Frontiers #39, MAY-JUN 1985 . 1985-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 85: Jan-Feb 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Two Tsumani Tales Only a few years ago astronomical catastrophism was denied as a major factor in geological change. Now one reads everywhere of huge terrestrial impact craters, iridium layers, and tektite deposits. Even so, one necessary consequence of 70% of the large impacts has been neglected until recently: the giant tsunamis and marine incursions that must have swept over the coasts of the continents following impacts at sea. This oversight is now being rectified. 100,000 BP. The South Pacific. A longstanding geological enigma of the New South Wales coastline is the curious distribution of sand dunes. Those headlands less than 40 meters high have lost most of their dunes, leaving only raw, unweathered rock. On the other hand, the higher headlands have retained these dunes. Australians B. Young and T. Bryant hypothesize that a tsunamis 40 meters high swept the lower headlands clean about 100,000 years ago. They can even plot the incoming wave's direction, because a few remnants of the coastal dunes still cling to the southwest corners of the headlands along the NSW coast south of Newcastle. In their scenario, the tsunamis came from the northeast, smashed into the Solomons, southeastern Australia, and northeastern New Zealand. The Great Barrier Reef protected northeastern Australia from the full force of the wave. Young and Bryant favor a Hawaiian landslip as the initiator of the tsunamis, but acknowledge that an asteroid impact could also have done ...
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... No. 115: Jan-Feb 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The hilina slump a.k .a . "the big crack"Huge chunks of the Hawaiian Islands have been sliding into the Pacific Ocean for hundreds of thousands of years. (SF#101) Geologists classify these slides as either "slumps" or "debris avalanches." Slumps move just a few inches a year but are prone to bigger, jerky adjustments. Debris avalanches are fast cascades of rocks and soil. In Hawaii, both varieties of movement can involve massive blocks of real estate. In the huge Nu'uanu debris slide, stone blocks 6 miles across tumbled 30 miles out to sea. Both slumps and debris slides may create colossal tsunamis. (Tsunamis are miscalled "tidal waves," but they have nothing to do with tides and do not behave like tides or wind-driven waves.) When large pieces of the Hawaiian Islands slip into the ocean, the entire Pacific Rim is smashed by the resulting tsunamis. In New South Wales, Australia, there is geological evidence that part of this coast was scoured by a Hawaiigenerated tsunami 100,000 years ago. The postulated wave started out about 375-meters ( -mile) high in Hawaii. By the time is reached Australia, it was about 40 meters high. (SF#85) Worse waves may be on tap. A 4,760 cubic mile chunk of the Big Island (Hawaii) is breaking away at the rate of 4 inches per ...
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... of space debris about a kilometer in diameter splashed down in the Bellingshausen Sea between Antarctica and South America. It was some splash! The splash zone was about 20 kilometers across, waves 4 kilometers high raced away from Ground Zero, and a column of salt water ascended miles high into the upper atmosphere. The TNT equivalent is estimated at 12 billion tons. Ice clouds formed and shaded the planet, causing severe climate changes. On the floor of the Bellingshausen Sea, 5 kilometers deep, lies the Eltanin Impact Structure. Today, we can still see the geological consequences thousands of kilometers from the impact point. The puzzling remains of marine diatoms in Antarctica's dry valleys may well be fallout from the cubic kilometers of seawater blasted out of the Bellingshausen Sea. More formidable were the giant tsunamis that fanned out at jet speeds toward South America and Australia. On the deep ocean these tsunamis were only 20-40 meters high, but as they approached land, they slowed and piled up into walls of water that approached a kilometer in height. Even after 2.2 . million years, geologists think they can see traces of these tsunamis in Australia and New Zealand. The mysterious bone beds near Pisco, Peru, may also have been the work of the tsunamis. Here, geologists find a deposit containing bones of both marine and terrestrial animals mixed together as if by a giant blender. (Hecht, Jeff; "A Bigger Splash," New Scientist, p. 11, November 1, 1997. And: Anonymous; "The Splash Felt 'round the World ...
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... but not at a very remote period, the water of the Pacific flowed through what is now the swamp and prairie between Waatch village and Neeah Bay, making an island of Cape Flattery. The water suddenly receded leaving Neeah Bay perfectly dry. It was four days reaching the lowest ebb, and then rose again without any waves or breakers, till it had submerged the Cape, and in fact the whole country, excepting the tops of the mountains at Clyoquot. The water on its rise became very warm, and as it came up to the houses, those who had canoes put their effects into them, and floated off with the current, which set very strongly to the north.'" The authors of the present article wonder if the above could be an account of a massive tsunami! They admit that the 4-day recession is inconsistent with tsunami action and that the warm water is hard-to-explain. The height reached by the inundation -- some 400 meters -- is also incredible. (Heaton, Thomas H., and Snavely, Parke D., Jr.; "Possible Tsunami along the Northwestern Coast of the United States Inferred from Indian Traditions," Seismological Society of America, Bulletin, 75:1455, 1985.) From Science Frontiers #44, MAR-APR 1986 . 1986-2000 William R. Corliss ...
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... Hawaii. The offshore stipled areas show the major submarine landslides. Application of the distance scale proves their immense areal extents. Depth contours are in kilometers! The heavy dashed line marks the axis of the Hawaiian Deep. Most landslides are not anomalous, but some of those that occurred on the flanks of the Hawaiian Islands are so immense that anomalists should at least take note of them. J. Moore et al have been mapping and sampling huge blocks of rock that slid off the sides of Mauna Loa in the socalled South Kona landslide. These blocks of lava and basalt are truly giants. One was measured at 10 kilometers in length, 300 meters in thickness. Some of these colossal chunks of rock slid 80 kilometers (50 miles) out to sea during the late Pleistocene. Imagine the tsunami (tidal wave) this landslide must have generated! (Moore, James G., et al; "Giant Blocks in the South Kona Landslide, Hawaii," Geology, 23:125, 1995.) Comment. The South Kona landslide, or one like it, and the resulting tsunami might account for the curious distribution of sand dunes along the coast of New South Wales, Australia. See Science Frontiers #85. From Science Frontiers #101 Sep-Oct 1995 . 1995-2000 William R. Corliss ...
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... , travelling from northwest to southeast at an estimated speed of 15 knots, as indicated on the sketch. The line was observed to be a wave. "It was about 10 minutes after the first sighting that the vessel passed over the wave, which was approximately 4 m [13 feet] high, and she heeled 5 to port while the autopilot deviated 3 off course. At the time of the event, there was a low swell of 1.0 m from 320 and the sea was 0.5 m from 360 . The current was estimated to be 2.5 knots running to the west." (Talbot, A.P .; "Unusual Wave," Marine Observer, 69:10, 1999.) Comment. The wave could not have been a tsunami because it was travelling too slowly. Tsunamis travel at jet speed and are rarely visible on the deep ocean. Since the wave was solitary and four times the height of the gentle swells, it is unlikely that it was a chance combination of the swells. Most likely it was a surface manifestation of an internal wave that had been reflected from an undersea obstacle like the continental shelf. From Science Frontiers #122, MAR-APR 1999 . 1999-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 53: Sep-Oct 1987 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology A TSUNAMI AND A PERUVIAN CULTURAL GLITCH Lenses in antiquity Strange craters Astronomy Hypnotic mars The perseus flasher: mystery solved! Three planetary notes Biology Has the second law been repealed? Human direction finding Magnetic "dead" reckoning Another tale of ogopogo Geology Meteor-impact winters, magnetic field reversals and tektites Tektite-like objects at lonar crater, india Geophysics Are the soviet plumes only orographic clouds? Lightning triggered from the magnetosphere Psychology Magnetic fields and the imagination Men in black (mibs) Folie a famille A "MAGICAL GENIUS" Pi and ramanajan A MODEST EXAMPLE OF THE LONG ARM OF SYNCHRONICITY ...
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... Science Frontiers ONLINE No. 39: May-Jun 1985 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology East Bay Wall Photographs The Hambleton Hill Neolithic Fortress Astronomy Mysterious Spate of Sky Flashes Exorcising the Hidden Mass Hold Everything: it May Be A Nonproblem The Message of Aluminum-26 Saturn's Rings May Be Young Biology Upside-down Animals How Animals Might Get Inverted Shrimp Trains Are A'coming Geology Status of Archaeopteryx Up in the Air! The Coming Revolution in Planetology Deeper Mysteries Bone Bed Discovered in Florida Geophysics Recipe for Dust Devils The Tsunami Tune Lde Problem Still Unsolved Falls of All Sorts of Things Psychology Pk parties: real or surreal? It's Easier to Hypnotize Right-handers Chemistry & Physics Anomalous Anomalons Forbidden Matter ...
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... Science Frontiers ONLINE No. 121: Jan-Feb 1999 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Problems of aboriginal art in australia A CONTINENT LOST IN THE PACIFIC OCEAN Astronomy Oklo: an unappreciated cosmic phenomenon Is life a transitor phenomenon? Biology Acupuncture 5,200 ears ago? Imprison willy! Is intelligence a deadly pathogen? How homeopath might work October 5, 1998: dark day for homing pigeons Starlings fall out of the sky Geology An arkansas tsunami deposit? Fused ancient garbage dumps Geophysics Tunguska afterglow Lake champlain's two seiches B-24 SIGHTS "CIRCLES OF LIGHT" Psychology Are pets psychic? ...
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... Science Frontiers ONLINE No. 141: May-Jun 2002 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology An Ice-Age North Atlantic voyage? Somehow bananas slipped into West Africa 2,500 years ago Ancient messages on the Shroud of Turin Astronomy Europa's anomalous infrared spectrum Are the cosmic carriers of life comets or meteorites? Biology 'Modern' feathers on a non-avian dinosaur The intelligence of plants Unexplained weight-gain transient at the moment of death Geology Flank collapses: Generators of giant tsunamis Ragnarok: The Age of Fire and Gravel Geophysics Ball lightning gets some scientific respect Unknown species puts on spectacular light show Psychology Why music? Physics Falling in a quantized way Unclassified Where are those aliens? ...
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... rolled away just before the impact and this I am sure saved us from even more serious damage." "The wave was higher than our foremost track -- 85 ft above the water. As this wave approached from a direction 90 degrees different from the normal sea and wind, which had been northerly for a few days previously, I put its existence down to a submarine earthquake in the mid-Atlantic ridge. Certainly it appeared so much different from the normal wind-generated sea, of which I have seen thousands. There was no crest, nor white streaks, a nearly vertical front and quite fast approach." (Cameron, T. Wilson; "Treachery of Freak Wave," Marine Observer, 55:202, 1985.) Comment. Earthquake generated waves or tsunamis are hardly noticeable in deep water. Only when they approach shallow water and the shore do they crest dangerously. Reference. Giant solitary waves are covered in category GHW1 in our catalog: Earthquakes, Tides. Ordering information at: here . From Science Frontiers #48, NOV-DEC 1986 . 1986-2000 William R. Corliss ...
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... : Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Evidence For A Giant Pleistocene Sea Wave On the Hawaiian island of Lanai, limestone-bearing gravel blankets the coastal slopes. Called the Hulopoe Gravel, it now reaches a height of 326 meters above sea level. Taking into account the 1000,000-year age of the gravel and the slow subsidence of the Hawaiian Islands, the deposit probably reached 380 meters when it was first formed. The big question is how it got deposited at such great heights. Highsea stands are rejected by the authors in favor of a single episode of catastrophic waves about 100,000 years ago. Earthquake-generated tidal waves are considered unlikely because of the great heights involved. (The highest tsunami ever recorded in historical times reach ed only 17 meters above sea level.) A great meteor impact or submarine volcanic explosion are good possibilities, but the authors favor a giant submarine landslide on the Hawaiian Ridge, noting that in 1958 a similar event off Alaska produced a wave that reached 524 meters above sea level. (Moore, James G., and Moore, George W.; "Deposit from a Giant Wave on the Island of Lanai, Hawaii, Science, 226:1312, 1984.) From Science Frontiers #37, JAN-FEB 1985 . 1985-2000 William R. Corliss ...
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... like giant ripples. The width of the mosaic is about 340 kilometers, so you can appreciate the scale of the hills themselves. The crest-to-crest distances seem to be 2-3 kilometers. Roughly 35,000 square kilometers are covered with a sheet of sand that averages 8 meters thick. Mainstream geologists write these sandhills off as eolian (wind-carried) deposits laid down during the late Pleistocene. Hansen, however, along with geological iconoclast A. Kelly, demur. The Nebraska sanhills, they aver, were actually deposited by a wall of water sweeping down across the continent from the north -- very likely the consequence of an impact of a large asteroid. For more on Kelly's rejection of the eolian theory and many additional examples of deposits by huge tsunamis or marine incursions, see his book Impact Geology and/or category ETM7 in our catalog volume: Carolina Bays, Mima Mounds, etc. (To order the latter book, visit here .) (Hansen, Evan; personal communication, March 26, 1994.) From Science Frontiers #93, MAY-JUN 1994 . 1994-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 4: July 1978 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Is the earth a giant methane reservoir?T. Gold, of Cornell, theorizes that a vast reservoir of methane resides in the earth's crust -- a left-over from the formation of the earth. This accumulation of methane, he suggests, has been the major source of carbon at the surface throughout geological time. The existence of subterranean methane is manifested when flames shoot up during earthquakes. Tsunamis or tidal waves are probably caused by the release of immense bubbles of methane during quakes rather than by actual motion of the sea floor. (Lewis, Richard S.; "Is the Earth a Giant Methane Store?" New Scientist, 78:277, 1978.) Comment. Gold has also correlated offshore booms with sea-floor methane releases. More of his heretical thoughts on these matters are to be found in Section ESC in our Catalog: Anomalies in Geology. This volume is described here . From Science Frontiers #4 , July 1978 . 1978-2000 William R. Corliss ...
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... out that Mima Mounds tend to be concentrated in seismically active areas, whereas pocket gophers and their kindred rodent excavators have a more general distribution. This observation has led Berg to theorize that earthquake vibrations rather than gophers raised the Mima Mounds. Indeed, if you sprinkle sand on a vibrating surface in the lab, you do see tiny mounds of sand rising mysteriously. (SF#69, SF#91, SF#108) Working against Berg's theory is the rather poor geographical match between the fields of Mima Mounds and areas of high seismicity. (Geiger, Beth; "Heaps of Confusion," Earth , 7:35, August 1998.) Comments. Some thirty theories have been advanced to explain the Mima Mounds from ancient fish nests to the flooding due to giant tsunamis raised by asteroid impacts at sea. Distribution of mima mounds and pimpled plains in the United States. The Mima Prairie is situated in Area #1 . From Science Frontiers #119, SEP-OCT 1998 . 1998-2000 William R. Corliss ...
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... Disturbances GHC8 Honeycomb Appearance of Flowing Water Remarkable Convection Patterns in Ponds Long Lines of Microorganisms on the Ocean Surface Massive Foam Accumulations Storm Footprints on the Ocean as Seen from Orbit Remarkable Falling and Rising Lake Levels Parting of the Red Sea Reversal of Niagra Falls and Related Phenomena GHG GEYSERS, PERIODIC WELLS, BLOWING CAVES GHG1 Geysers at Sea GHG2 Geysers and Blowing Wells Correlated with Weather Phenomena GHG3 Geysers and Intermittent Wells Correlated with Tidal Forces GHG4 Cold-Water Geysers and Periodic Springs and Wells [GHQ6] Hydrothermal Earthquake Precursors Hydrothermal Explosions Effect of Earthquakes upon Geyser Activity GHS THE BEWILDERING VARIETY OF TIDES GHS1 Sun-Dominated Tides GHS2 Sea and Lake Seiches... GHS3 Spectacular Tidal Bores GHS4 Diurnal, Triple, and Quadruple Tides GHS5 Long-Period Tides of Unexpected Strengths GHS6 Tides That Precede the Moon Extraordinary Tsunamis Tsunami Cycles GHT OCEAN TURBULENCE AND CIRCULATION PHENOMENA GHT1 Extraordinary Deep Circulation Events GHT2 Sonar-Detected Subsurface Oceanic Structures GHT3 Nonvolcanic Underwater Eruptions GHT4 Anomalous El Ninos GHT5 The Guinea Tide GHT6 Energy Transfer to Hurricanes GHT7 Oceanic Rings and Eddies GHT8 Large-Scale Oceanic Chemical Anomalies Deep-Sea Storms Curious Drifts Gas-Hydrate Blowouts Great Whirlpools and Vortices The Gibraltar Dam Oceanic Megaplumes Gulf-Stream Reversal Oceanic Dead Zones Organized Structures in Bubble Clouds North Atlantic Oscillations El Ninos Correlated with Seismicity GHW REMARKABLE WAVE PHENOMENA GHW1 Unexplained Solitary Waves GHW2 Periodic Bands of Waves GHW3 Sudden, Unexpected Onset of High Surf GHW4 Downstream Progressive Waves in Rivers Increasing Heights of North Atlantic Waves GI INCENDIARY PHENOMENA GIC CYCLIC FIRES Forest-Fire Cycles GIS SUPPOSED SPONTANEOUS COMBUSTION Unexplained Fires GIW REMARKABLE FIRE STORMS The Peshtigo Horror GL LUMINOUS PHENOMENA GLA AURORA ...
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