Possible pingo fields in the Utopia basin, Mars: Geological and climatical implications
Possible pingo fields in the Utopia basin, Mars: Geological and climatical implications
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火星乌托邦盆地可能存在的平戈场：地质和气候影响
DOI：
10.1016/j.icarus.2008.09.007
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发表时间：
2009
期刊：
影响因子：
3.2
通讯作者：
G. Komatsu
中科院分区：
文献类型：
--
作者：
M. Pablo;G. Komatsu
The presence of pingos on Mars has been hypothesized since the period of the Viking mission. In fact, a diverse range of pingo-like features has been found at various martian sites including Elysium, Chryse and Utopia Planitiae in the northern lowlands. Due to the morphology and the geological setting, some of those features were interpreted in different ways, creating some controversies, as happened in Athabasca Valles. This reflects the complexity of interpreting these features by remote sensing and multiple plausible interpretations of the same feature. With the objective of identifying new possible pingos or rootless cones on Mars, we selected a study area in Utopia Planitia (10–55° N, 210–260° W) where the presence of both features is possible due to its geological history (volcanic and hydrological). We analyzed more than 2100 Mars Orbiter Camera (MOC)-narrow angle images in addition to Viking, Thermal Emission Imaging System (THEMIS), and High Resolution Stereo Camera (HRSC) images, together with Mars Orbiter Laser Altimeter (MOLA)-derived Digital Elevation Models (DEMs) with a Geographic Information System (GIS). We found in 94 MOC-narrow angle images dome, cone, and ring-shaped features. We analyzed them from morphological and morphometrical points of view in order to compare them with relevant features on Mars and Earth. We tested different possible origins for those features following the approach of multiple working hypotheses. We conclude that the dome, cone, and ring-shaped features could be pingos, which is in agreement with their geological settings. Regarding the driving heat source for the formation of the purported pingos, we propose the existence of a heat source, possibly a magma chamber, underneath the surface of the Utopia basin. Together with possible climatic shifts, the past activities of the heat source may have caused melting of ground ice. The pingo growth due to freezing of the water would have occurred during the following cold climatic conditions.
Harada M：“人类大脑图谱的最新进展”ELSEVIER。
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控制撞击坑断裂系统对地下水文、地面沉降和塌陷的影响
DOI：
--
发表时间：
2005
期刊：
Journal of Geophysical Research Planets (In press)
影响因子：
--
作者：
Jose Alexis Palmero;Rodriguez
通讯作者：
Rodriguez
火星西南 Chryse Planitia 含水层的形成和破坏
DOI：
--
发表时间：
2007
期刊：
Icarus 191
影响因子：
--
作者：
Rodriguez;J. A. P.;et. al.
通讯作者：
et. al.