| 词条 | Grindavik (crater) |
| 释义 |
| titlecolor = #FA8072 | title = Grindavik | image = Grindavik Crater.JPG | image_size = 200px | caption = Grindavik Crater, as seen by HiRISE. Scale bar is 1000 meters long. | coordinate_title = Coordinates | globe = Mars | coordinates = {{coord|25.39|N|39.07|W|globe:mars_type:landmark|display=inline,title}} | diameter = 12 km | eponym = Grindavík, Iceland }}Grindavik is an impact crater in the Oxia Palus quadrangle of Mars, located at 25.39° North and 39.07° West. It is 12 km in diameter and was named after Grindavík, a town in Iceland.[1] Impact craters generally have a rim with ejecta around them, in contrast volcanic craters usually do not have a rim or ejecta deposits. As craters get larger (greater than 10 km in diameter) they usually have a central peak.[2] The peak is caused by a rebound of the crater floor following the impact.[3] See also
References1. ^{{gpn|14190}} {{Geography of Mars}}{{portal bar|Mars}}{{Mars-stub}}{{crater-stub}}2. ^http://www.lpi.usra.edu/publications/slidesets/stones/ 3. ^{{cite book|author=Hugh H. Kieffer|title=Mars|url=https://books.google.com/books?id=NoDvAAAAMAAJ|accessdate=7 March 2011|date=1992|publisher=University of Arizona Press|isbn=978-0-8165-1257-7}} 2 : Impact craters on Mars|Oxia Palus quadrangle |
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