Environmental effects of an impact-generated dust cloud: Implications for the cretaceous-tertiary extinctions
Science, ISSN: 0036-8075, Vol: 219, Issue: 4582, Page: 287-289
1983
- 77Citations
- 16Captures
- 1Mentions
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations77
- Citation Indexes77
- CrossRef77
- 72
- Captures16
- Readers16
- 16
- Mentions1
- References1
- Wikipedia1
Article Description
A model of the evolution and radiative effects of a debris cloudfrom a hypothesized impact event at the Cretaceous-Tertiary boundary suggests that the cloud could have reduced the amount of light at the earth's surface below that required for photosynthesis for several months and, for a somewhat shorter interval, even below that needed for many animals to see. For 6 months to 1 year, the surface would cool; the oceans would cool only a few degrees Celsius at most, but the continents might cool a maximum of 40 Kelvin. Extinctions in the ocean may have been caused primarily by the temporary cessation of photosynthesis, but those on land may have been primarily induced by a combination of lowered temperatures and reduced light.
Bibliographic Details
American Association for the Advancement of Science (AAAS)
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