HOME >> BIOLOGY >> NEWS
Asteroid devastation possibly worse than feared

CORVALLIS, Ore. - Researchers say in a new report that if a huge asteroid were to hit the Earth, the catastrophic destruction it causes and even the "impact winter" that follows might only be a prelude to a different, but very deadly phase that starts later on - what they call "ultraviolet spring."

In an analysis of the secondary ecological repercussions of a major asteroid impact, scientists from Oregon State University and the British Antarctic Survey have outlined some of the residual effects of ozone depletion, acid rain and increased levels of harmful ultraviolet radiation. The results were just published in the journal Ecology Letters.

The findings are frightening. As a number of popular movies have illustrated in recent years, a big asteroid or comet impact would in fact produce enormous devastation, huge tidal waves, and a global dust cloud that would block the sun and choke the planet in icy, winter-like conditions for months. Many experts believe such conditions existed on Earth following such an impact around the Cretaceous-Tertiary, or K-T boundary, when there was a massive extinction of many animals, including the dinosaurs.

Thats pretty bad. But according to Andrew Blaustein, a professor of zoology at Oregon State University, theres more to the story. "Scientists have pretty well documented the immediate destruction of an asteroid impact and even the impact winter which its dust cloud would create," Blaustein said. "But our study suggests thats just the beginning of the ecological disaster, not the end of it."

Blaustein and colleague Charles Cockell examined an asteroid impact of a magnitude similar to the one that occurred around the K-T boundary, which is believed to have hit off the Yucatan Peninsula with a force of almost one trillion megatons.

The immediate results would be catastrophic destruction and an impact winter, with widespread death of plants and the large terrestrial animals - including humans - that most direc
'"/>

Contact: Andrew Blaustein
blaustea@bcc.orst.edu
541-737-5356
Oregon State University
8-Mar-2000


Page: 1 2 3

Related biology news :

1. Study Associates Asteroid Or Comet Impact With Extinctions In Argentina
2. Scientist Finds Asteroid Fossil That May Have Caused Global Dinosaur Extinction
3. North America Hit Hard By Asteroid Strike In Yucatan 65 Million Years Ago
4. Duke ecologist finds devastation, hope in Iraqi marshes
5. Amazonian devastation: Common sense quantified to predict disaster
6. Hormone linked to obesity plays positive role in fertility & possibly male arousal
7. OHSU researchers discover brain cell mechanism possibly linked to mental retardation
8. Dinosaur ancestors vision possibly nocturnal
9. Penn team finds molecular chaperones can halt progress of Parkinsons disease in fruit flies and possibly humans
10. Yale and University of Chicago researchers discover 40-foot crocodile fossil, possibly the largest known so far
11. Schizophrenia possibly linked to early brain development

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/6/2016)... Dec. 6, 2016 Valencell , the leading ... has seen a third consecutive year of triple digit ... in 2016 with a 360 percent increase in companies ... increase was driven by sales of its wrist and ... in its technology for hearables for fitness and healthcare ...
(Date:12/2/2016)... AUSTIN, Texas , Dec. 1, 2016 /PRNewswire/ ... provider, today announced BioLock , an electrocardiogram ... and health monitoring, a key IoT asset. The ... embedded into a vehicle,s steering wheel and mobile ... a simple touch. As vehicle technology ...
(Date:11/29/2016)... , Nov. 29, 2016   ... identification and object recognition technologies, today released ... for fingerprint recognition solutions that run on ... fingerprint template using less than 128KB of ... compact devices that have limited on-board resources, ...
Breaking Biology News(10 mins):
(Date:12/8/2016)...  The Board of Directors of the Pittsburgh ... only pure life sciences investment firm, today ... succession plan developed by the Nominating and Governance Committee ... (Jim) F. Jordan is selected to serve as ... Manzetti , who is elected to the position of ...
(Date:12/8/2016)... AskLinkerReports.com has published a report on Amyloglucosidase Market ... Market Research Report. From a basic outline of the Amyloglucosidase ... covered in the report. This report projects investment feasibility analysis, ... Amyloglucosidase industry. ... , Complete report on ...
(Date:12/8/2016)... ... December 08, 2016 , ... Opal Kelly, ... essential device-to-computer interconnect using USB or PCI Express, announced the FOMD-ACV-A4, the company's ... is a small, thin, SODIMM-style module that fits a standard 204-pin SODIMM socket ...
(Date:12/8/2016)... (PRWEB) , ... December 08, ... ... announces the commercial launch of flexible packaging for their exceptionally efficient human ... bag system extends RoosterBio’s portfolio of bioprocess media products engineered to radically ...
Breaking Biology Technology:
Cached News: