Luis W Alvarez
Biographic Data
| ID | 10737814 |
|---|---|
| NAME | Luis W Alvarez |
| GIVEN NAMES | Luis W |
| FAMILY NAME | Alvarez |
| SIGNATURE | ALVAREZ L W |
| AFFILIATIONS | Professor emeritus of physics at Lawrence Berkeley Laboratory, University of California, Berkeley 94720 |
| VERIFIED | No |
| TOTAL WORKS | 1 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 1 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1980 |
| LATEST PUBLICATION YEAR | 1980 |
| H-INDEX | 0 |
Extraterrestrial Cause for the Cretaceous-Tertiary Extinction
Platinum metals are depleted in the earth's crust relative to their cosmic abundance; concentrations of these elements in deep-sea sediments may thus indicate influxes of extraterrestrial material. Deep-sea limestones exposed in Italy, Denmark, and New Zealand show iridium increases of about 30, 160, and 20 times, respectively, above the background level at precisely the time of the Cretaceous-Tertiary extinctions, 65 million years ago. Reasons a…
No prominent works on this page.
Extraterrestrial Cause for the Cretaceous-Tertiary Extinction
Platinum metals are depleted in the earth's crust relative to their cosmic abundance; concentrations of these elements in deep-sea sediments may thus indicate influxes of extraterrestrial material. Deep-sea limestones exposed in Italy, Denmark, and New Zealand show iridium increases of about 30, 160, and 20 times, respectively, above the background level at precisely the time of the Cretaceous-Tertiary extinctions, 65 million years ago. Reasons a…
Abundance (ecology) (1 works) · Asteroid (1 works) · Astro and Planetary Science (1 works) · Astrobiology (1 works) · Biological dispersal (1 works) · Chondrite (1 works) · Cretaceous (1 works) · Earth science (1 works) · Ecology (1 works) · Extinction (optical mineralogy) (1 works)