File:057Tyrrhena Patera.png
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[编辑]描述057Tyrrhena Patera.png |
English: Tyrrhenus Mons lies on the northeast edge of the Hellas impact basin. It numbers among a handful of similar low volcanic structures (originally called paterae, after the Latin word for dish) in the cratered highlands next to Hellas. The others are Hadriaca (also on the northeast) and Amphitrites, Peneus, and Pityusa (all on the southwest of Hellas). Tyrrhenus and its neighbors also show a different volcanic style than later volcanos such as Olympus Mons and the others in Tharsis and Elysium. Tyrrhenus's low slopes, wide structure, and heavily scored flanks suggest that it is made of easily eroded materials. Scientists call such volcanic debris "pyroclastic," from the Greek meaning fire-broken. The image is a mosaic of infrared frames taken during daytime by the Thermal Emission Imaging System (THEMIS) on NASA's Mars Odyssey orbiter. Circling Mars every two hours, THEMIS scans the surface in five visible and 10 infrared bands. The smallest details it can record at infrared wavelengths are 100 meters (330 feet) wide; at visible wavelengths, THEMIS has imaged selected regions at 18-meter (59 feet) resolution.
Location: 21.4°S, 106.6°E |
日期 |
在2011年之前 date QS:P,+2011-00-00T00:00:00Z/7,P1326,+2011-00-00T00:00:00Z/9 -05-18 |
来源 | http://themis.asu.edu/node/5427 |
作者 | NASA / JPL-Caltech / Arizona State University |
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[编辑]Public domainPublic domainfalsefalse |
本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。) | ||
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