Science Frontiers
The Unusual & Unexplained

Strange Science * Bizarre Biophysics * Anomalous astronomy
From the pages of the World's Scientific Journals

Archaeology Astronomy Biology Geology Geophysics Mathematics Psychology Physics



About Science Frontiers

Science Frontiers is the bimonthly newsletter providing digests of reports that describe scientific anomalies; that is, those observations and facts that challenge prevailing scientific paradigms. Over 2000 Science Frontiers digests have been published since 1976.

These 2,000+ digests represent only the tip of the proverbial iceberg. The Sourcebook Project, which publishes Science Frontiers, also publishes the Catalog of Anomalies, which delves far more deeply into anomalistics and now extends to sixteen volumes, and covers dozens of disciplines.

Over 14,000 volumes of science journals, including all issues of Nature and Science have been examined for reports on anomalies. In this context, the newsletter Science Frontiers is the appetizer and the Catalog of Anomalies is the main course.


Subscriptions

Subscriptions to the Science Frontiers newsletter are no longer available.

Compilations of back issues can be found in Science Frontiers: The Book, and original and more detailed reports in the The Sourcebook Project series of books.


The publisher

Please note that the publisher has now closed, and can not be contacted.

 

Yell 1997 UK Web Award Nominee INTERCATCH Professional Web Site Award for Excellence, Aug 1998
Designed and hosted by
Knowledge Computing
Other links



Match:

Search results for: chicxulub

7 results found.
Sorted by relevance / Sort by date
... though, geologists find a 55-centimeter-thick layer of glassy debris. Approximately 25% of this stra tum consists of 1-6 -millimeter particles of tektite-like glass. Most of the glass particles are spherical, but a few have the splash-forms and dumbbell shapes of bona fide tektites. The thickness of the Haitian deposit and the large sizes of the particles suggest that the smoking gun must be nearby. Ironically, the Haiti stratum was originally classified as of volcanic origin; and we must add that we are presenting here only the conclusions of the asteroid school. But where oh where is this crater? The Manson crater in Iowa (now buried) is of the right age but too small. The best candidate so far is buried in northern Yucatan. The Chicxulub crater is discernible on gravity- and magneticanomaly maps and is probably of the right age. Only drilling will confirm the guilt of the suspect. Even if Chicxulub is the culprit, much debate prevails over exactly how the dinosaurs were done in. Was it a "cosmic winter" due to dust intercepting sunlight? Or perhaps a "cosmic summer" resulting from a super-greenhouse effect caused by: (1 ) impact-released methane trapped in sediments, and (2 ) the CO2 from zapped carbonate rocks. (Smit, Jan; "Where Did It Happen?" Nature, 349:461, 1991, and Sigurdsson, Haraldur, et al; "Glass from the Cretaceous/Tertiary Boundary in Haiti," Nature, 349:482, 1991.) Reference. ...
Terms matched: 1  -  Score: 24  -  15 May 2017  -  URL: /sf075/sf075g09.htm
... Science Frontiers ONLINE No. 99: May-Jun 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ballistic Panspermia Scientists are already convinced that cratering events on the moon and Mars have propelled rocky debris in the direction of the earth, and that some of these fragments have landed here in the guise of meteorites. A logical question is: Can life forms and/or chemical precursors of life be transported thus across the far reaches of the solar system? Can one planet infect another ballistically? An analysis by M.K . Wallis and N.C . Wickramasinghe is rather warm towards this idea: "The mass of escaping ejecta from the presumed 10-km comet that caused the 180-km Chicxulub crater, with a radius of roughly 10 km and 1 m deep, amounted to ~300 Mm3 , of which one third may have been rock and 10% higher-speed ejecta that could have transited directly to Mars. It may have taken 10 Ma to impact Mars but...the probability is not exceedingly low but 0.1 -1 %. "The survival and replication of microorganisms once they are released at destination would depend on the local conditions that prevail. Although viability on the present-day Martian surface is problematical, Earth-to-Mars transfers of life were feasible during an earlier 'wet' phase of the planet, prior to 3.5 Ga ago. The Martian atmosphere was also denser at that epoch, with several bars of CO2 , thus serving to decelerate meteorites, as ...
Terms matched: 1  -  Score: 15  -  15 May 2017  -  URL: /sf099/sf099g10.htm
... Science Frontiers ONLINE No. 151: Jan - Feb 2004 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology 7,000-year-old circles in Modern Crop Fields Fingers Lost and Found Astronomy Not Enough TNOs (Trans-Neptunian Objects = KBOs Kuiper-Belt Objects) Was the Big Bang Dodecahedral? Biology Thickening the Ocean's Biomass Sponging on Sponges What else is Meant to Be? Geology Building a Fire with Wood 45 Million Years old The Shrinking of Chicxulub Geophysics The Deadliest Forest Fire in American History The Yellowstone-Lake Bulge Want Big Waves for Surfing? Forget Hawaii and Australia! Anomalous Auroral Flashes Psychology Why Sleep? If we must Sleep, Why must we Dream too? Chemistry Lab-made Microfossils ...
Terms matched: 1  -  Score: 15  -  15 May 2017  -  URL: /sf151/index.htm
... about 12 kilometers in diameter. Only one of these structures has been studied at ground level; and it is of impact origin, as confirmed by upturned strata and grains of shocked quartz. The other two could be volcanic say the skeptics. It will take an expedition to Chad to clarify things. (Kerr, Richard A.; "Impact Craters All in a Row?" Science, 272:33, 1996) A final comment -- at last! All impactcrater chains are relevant to the claim of H.R . Shaw that even the earth's largest impact structures are found in swathes (chains). In his wonderfully heretical book Craters, Cosmos, and Chronicles: A New Theory of the Earth, Shaw mentions several such swathes. One of his chains includes Chicxulub (beneath Yucatan), Manson (Iowa), Avak (Alaska), and three more in Russia. These are giant craters stretched out over much of the planet, not pipsqueak craters athwart a couple states! 50 years from now. In 2050, perhaps someone will wonder why Shaw's vision was rejected so emphatically today. Reference. Impact craters and other topographic anomalies are cataloged in ETC in the catalog: Carolina Bays, Mima Mounds. Ordering information can be found here . From Science Frontiers #106, JUL-AUG 1996 . 1996-2000 William R. Corliss ...
Terms matched: 1  -  Score: 14  -  15 May 2017  -  URL: /sf106/sf106p12.htm
... 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 the job. If the wave began near Hawaii, it would initially been about 375 meters (about mile) in height. (Davidson, Garry; "A Tsunamis Tale from Sydney," New Scientist, p. 17, October 17, 1992.) 65,000,000 BP. Northeastern Mexico. The date mentioned is, of course, that of the Cretaceous-Tertiary boundary. This is the time when, many scientists believe, a very large asteroid slammed into northern Yucatan, forming the now-buried Chicxulub crater and wiping out the dinosaurs. Since the impact site was covered with ocean at the time, a powerful tsunamis should have surged out from this area. Indeed, debris attributable to a tsunami has been found on the U.S . Gulf Coast and on some Caribbean islands. J. Smit et al now report finding a layer of debris up to 3 meters thick in northeastern Mexico. This layer was apparently deposited in water about 400 meters deep as the giant wave wreaked havoc along Mexico's shore and its backwash piled up debris offshore. This interpretation is supported by the presence of tektites, microtektites, glass spherules, abundant plant material, an iridium anomaly, and near the top ripple beds. (Smit, Jan, et al; "Tektite-Bearing, Deep ...
Terms matched: 1  -  Score: 14  -  15 May 2017  -  URL: /sf085/sf085g11.htm
... Science Frontiers ONLINE No. 150: Nov - Dec 2003 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Australians First in the New World? Origin of Clovis Culture Disputed A "Magic Number" Encoded in Three of the World's Major Pyramids Astronomy Mapping and Analyzing Dark Matter Biology Frog Poison Factory Puffin Tongue Trick? Human-chimp DNA Dissimilarities Four-Dimensional Biology A Squid's Eyes that Look Up and Down Tuberculosis and the Extinction of the Megaforna Dark Matter in our Genome Unknown Source of Animal Diversity Communication among Bacteria Geology When the Earth Gets Cracking Subduction Doesn't Check Out Chicxulub Didn't Do It! Geophysics Squishy Ball Lightning Far-Floating Fowl Psychology Natural-Born Readers Physics Mixed Anomalies ...
Terms matched: 1  -  Score: 14  -  15 May 2017  -  URL: /sf150/index.htm
... Earth . Shaw's ideas have recently been reviewed in Science News and our item is based on that article. Shaw contends that cosmic projectiles -- asteroids and comets -- have controlled almost all features of the earth's evolution. For example: Impacts have determined the positions of the continents. They have controlled the geomagnetic field. They have created volcanoes and massive basalt flows. They have caused mass extinctions. Of course, for two centuries, other catastrophists have proposed similar dire consequences of giant impacts. But Shaw does introduce three ideas that are worth recording here. Large impact craters occur in swaths. Although this has been suggested before, Shaw has mapped out several swaths where large craters of about the same age are located. His "K -T swath" includes the Chicxulub crater (Yucatan), the Manson crater (Iowa), the Avak crater (Alaska), and three more in Russia -- all of which were gouged out about the time of the Cretaceous-Tertiary (K -T ) boundary. Shaw has plotted several other swaths of different ages. The application of chaos theory to solar system debris. Shaw hypothesizes that nonlinear gravitational effects channel asteroids and comets into the inner solar system in intermittent bursts. The bursts are then captured by the earth and other inner planets, with some of these objects grouped in like orbits. Gravitational feedback occurs from earth to orbiting debris. Shaw believes that the uneven distribution of mass inside the earth -- due probably to the impact that created the moon -- influences where asteroids and comets impact. ...
Terms matched: 1  -  Score: 13  -  15 May 2017  -  URL: /sf098/sf098g11.htm

Search powered by Zoom Search Engine