Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Study of Buried Basin in Copernicus Area Based on Multi Source Remote Sensing Data

Version 1 : Received: 1 June 2022 / Approved: 6 June 2022 / Online: 6 June 2022 (02:56:50 CEST)

How to cite: Xu, X.; Kang, Z.; Hu, T.; Du, X.; Zhao, L. Study of Buried Basin in Copernicus Area Based on Multi Source Remote Sensing Data. Preprints 2022, 2022060051. https://doi.org/10.20944/preprints202206.0051.v1 Xu, X.; Kang, Z.; Hu, T.; Du, X.; Zhao, L. Study of Buried Basin in Copernicus Area Based on Multi Source Remote Sensing Data. Preprints 2022, 2022060051. https://doi.org/10.20944/preprints202206.0051.v1

Abstract

Masons are often overlooked part of impact basins, but play an important role in revealing the lunar history. Previous study in masons were usually limited to gravity data. Few researches were reported on morphology features and chronology, which hampers the construction of a complete geological interpretation for the evolution of each mascons. We use multi source remote sensing data to identify the details characteristic of mascons. Result of topography, gravity and characteristic are combined to prove that a mason beside Copernicus crater is a buried peak-ring basin which is about 130km and 260km in diameter. The underground structure is of confirmed as 890m thick mare basalts by analyzing the spectral feature of the material in a geological outcrop called Copernicus H. Geology evolution analysis joint crater size-frequency distribution (CSDF) dating demonstrate that the buried basin impact event occurred in 3.6Ga. Then a hawaiian-style eruption in late Imbrian formed Sinus Aestuum Ⅰ Dark Mantling Deposit (DMD). Mare basalts filling in 3.4Ga. After that, ejecta from Copernicus impact event in about 820Ma and weathering processes cause the disappearing from lunar surface of the buried basin.

Keywords

Copernicus; buried basin; mascons; multi source remote sensing data; planetary geology; plane-tary topography; geomorphology

Subject

Environmental and Earth Sciences, Space and Planetary Science

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