Features on Venus generated by plate boundary processes
Features on Venus generated by plate boundary processes
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由板块边界过程产生的金星特征
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
S. Solomon
中科院分区：
文献类型：
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作者：
D. McKenzie;P. Ford;C. Johnson;B. Parsons;D. Sandwell;S. Saunders;S. Solomon
各种观测表明，金星上的一些过程产生的特征与地球上的板块边界相似。利用波长为12.6 cm的雷达拍摄的金星合成孔径雷达图像，与波长为23 cm的声源获得的GLORIA活动板块边界图像进行了比较。在金星的阿尔忒弥斯区域，可以识别出类似于转换断层和缓慢或快速扩张山脊上的深海山丘的特征，但在其他地方却不清楚。由金星13号和14号以及织女星2号宇宙飞船测量的玄武岩的成分与绝热减压的预期相对应，就像在地球上伸展的山脊下发生的那样。类似海沟的结构在金星上广泛存在，并且显示出与地球相同的曲率和不对称性。这些观察结果表明，已经成功地用于理解地球构造的简单地球物理模型也可以应用于金星。
Various observations suggest that there are processes on Venus that produce features similar to those associated with plate boundaries on Earth. Synthetic aperture radar images of Venus, taken with a radar whose wavelength is 12.6 cm, are compared with GLORIA images of active plate boundaries, obtained with a sound source whose wavelength is 23 cm. Features similar to transform faults and to abyssal hills on slow and fast spreading ridges can be recognized within the Artemis region of Venus but are not clearly visible elsewhere. The composition of the basalts measured by the Venera 13 and 14 and the Vega 2 spacecraft corresponds to that expected from adiabatic decompression, like that which occurs beneath spreading ridges on Earth. Structures that resemble trenches are widespread on Venus and show the same curvature and asymmetry as they do on Earth. These observations suggest that the same simple geophysical models that have been so successfully used to understand the tectonics of Earth can also be applied to Venus.