| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,756,591,872 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
Caloris Basin |
Also found in: Wikipedia, Hutchinson | 0.01 sec. |
|
Caloris Basin [kə′lȯr·əs ′bā·sən] (astronomy) A large depression on Mercury, about 1300 kilometers in diameter. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | |
|---|---|---|
Some researchers concluded that Mercury's thin atmosphere of sodium and potassium may have formed from material that diffused up through fractures in the planet's crust rather than from meteorite impacts, judging from spectral measurements showing that more of these elements seemed to be present when a huge surface feature called Caloris Basin was in view (136: 311). that about ten times as much potassium showed up in Mercury's spectrum when Caloris was in view as when the big basin was out of sights. |
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|