The Surface Age of Titan
نویسندگان
چکیده
Introduction: Since its arrival at the Saturnian system, the Cassini spacecraft has made about 100 Titan flybys. The surface of Titan has been revealed almost globally by the Cassini observations in the infrared and regionally to about 25% in radar wavelengths [1,2,3] as well as locally by the Huygens optical instruments [4]. Extended dune fields, lakes, distinct landscapes of volcanic and tectonic origin, dendritic erosion patterns and deposited erosional remnants exhibit a geologically active surface indicating significant endogenic and exogenic processes leading to dynamic surface alteration. Consequently, impact craters are rare on Titan [5,6,7,8].
منابع مشابه
Infestations of Piagetiella titan (Menoponidae: Mallophaga) on juvenile white pelicans (Pelecanus nocrotalus, L.) in Urmia Lake National Park, northwest Iran.
Pelecaniformes are large water birds feeding by hunting fish and living usually in the sea and in fresh water. Ectoparasitic lice of the genus Piagetiella are interesting from an ecological standpoint as they are found in the pouches of pelicans. Unlike chewing lice, which live on the body surface of the host, P. titan lives in the oral cavity of white pelicans (Pelecanus nocrotalus, L.). This ...
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