Method and system for estimating thickness of lunar sea basalt based on multi-source remote sensing data

Abstract

The invention provides a method and a system for estimating the thickness of lunar sea basalt based on multi-source remote sensing data. The method comprises the following steps that a distribution range of the lunar sea basalt is determined; within the determined range, the relation between the impact crater in the lunar sea area and the lunar sea basalt stratum is determined according to the spectral data and the topographic data; different types of impact craters are determined based on the relation, and then the thickness and the thickness range of the lunar sea basalt are determined according to the shapes of the impact craters. The result can integrally reflect the basalt thickness distribution characteristics of the lunar sea area, and important evidence and clues are provided for evaluating the lunar sea basalt eruption scale and the lunar magma evolution degree.

Description

technical field [0001] The invention belongs to the technical field of planetary remote sensing, in particular to a method and system for estimating the thickness of mare basalt based on multi-source remote sensing data. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The moon is the only natural satellite of the earth. It was formed about 4.5 billion years ago and is an important participant and recorder of the evolution of the solar system. The moon retains the evidence of its own geological processes, including magma activity and impact history. It is also the most beneficial object for us to trace the evolution of the moon, the earth and the relationship between the earth and the moon. It is also a window for us to understand the evolution of terrestrial planets. From the 1960s to the present, many countries have launched multiple ser...

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Problems solved by technology

[0010] (1) Due to the different spatial and temporal resolutions of the data used, the thickness of mare basalts obtained by existing methods varies greatly, ranging from tens of meters to several kilometers;

[0011] (2) For the impact crater shape method, the relationship between the impact crater and the mare basalt formation is not considered, for example, some impact craters do not penetrate the mare basalt formation;

[0012] (3) Since most of the mare basalts are distributed in impact basins, and the number and distribution of mare basalt lava tongues are relatively limited, it is impossible to estimate the thickness of basalts in a large range

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