月球南四角海玄武岩的成分填图及地质年代

IF 1.8 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Planetary and Space Science Pub Date : 2025-02-01 DOI:10.1016/j.pss.2025.106034

D. Paul , S. Dhoundiyal , A. Porwal , G. Thangjam

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引用次数: 0

摘要

利用月球矿物测绘仪（M3）高光谱数据估算的辉石光谱参数，在月球南部四边形（0°S ~ 30°S和5°W ~ 30°W）共划分了22个不同的组成单元，覆盖了东南Oceanus Procellarum、mare Humorum、mare Cognitum和mare Nubium四个海洋区域。辉石成分的变化和推断的结晶温度指示了研究区内岩浆侵位活动的对比。通过检测FeO和TiO2含量的变化，这一发现得到了进一步的证实，其中钛含量（>5.9 wt%）与钙含量（>30 wt%）相关。研究进一步揭示了两种可能的岩浆源，即高钛（Ti）高钙辉石（HCP）岩浆源和中等富钛高钙辉石（HCP）岩浆源。我们的陨石坑大小-频率分布（CSFD）研究表明，火山活动在研究区大约3.6 Ga至0.73 Ga盛行，在~ 2.9 Ga至1.5 Ga左右达到峰值。

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Compositional mapping and geological age of the mare basalts of the southern quadrangle of Moon

Spectral parameters of pyroxene estimated from the Moon Mineralogy Mapper (M³) hyperspectral data are used to delineate a total of twenty-two distinct compositional units in the southern quadrangle of the Moon (0°S to 30°S and 5°W to 30°W) covering four mare regions, namely, south-east Oceanus Procellarum, Mare Humorum, Mare Cognitum, and Mare Nubium. The compositional variation of pyroxenes and inferred crystallization temperatures indicate contrasting magmatic emplacement activity in the studied area. This finding is further strengthened by examining the variations in the FeO and TiO₂ content where units with titanium content (>5.9 wt%) are associated with calcium content (>30 wt%). The study further reveals two possible sources of magma, namely, a high titanium (Ti) high calcium pyroxene (HCP) magma source and a moderately titanium-rich high calcium pyroxene (HCP) magma source. Our crater size-frequency distribution (CSFD) study indicates that the volcanism prevailed in the study area from approximately 3.6 Ga to 0.73 Ga, peaking around ∼2.9 Ga to 1.5 Ga.

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来源期刊

Planetary and Space Science 地学天文-天文与天体物理

CiteScore

5.40

自引率

4.20%

发文量

126

审稿时长

15 weeks

期刊介绍： Planetary and Space Science publishes original articles as well as short communications (letters). Ground-based and space-borne instrumentation and laboratory simulation of solar system processes are included. The following fields of planetary and solar system research are covered: • Celestial mechanics, including dynamical evolution of the solar system, gravitational captures and resonances, relativistic effects, tracking and dynamics • Cosmochemistry and origin, including all aspects of the formation and initial physical and chemical evolution of the solar system • Terrestrial planets and satellites, including the physics of the interiors, geology and morphology of the surfaces, tectonics, mineralogy and dating • Outer planets and satellites, including formation and evolution, remote sensing at all wavelengths and in situ measurements • Planetary atmospheres, including formation and evolution, circulation and meteorology, boundary layers, remote sensing and laboratory simulation • Planetary magnetospheres and ionospheres, including origin of magnetic fields, magnetospheric plasma and radiation belts, and their interaction with the sun, the solar wind and satellites • Small bodies, dust and rings, including asteroids, comets and zodiacal light and their interaction with the solar radiation and the solar wind • Exobiology, including origin of life, detection of planetary ecosystems and pre-biological phenomena in the solar system and laboratory simulations • Extrasolar systems, including the detection and/or the detectability of exoplanets and planetary systems, their formation and evolution, the physical and chemical properties of the exoplanets • History of planetary and space research