Rotating lunar globules

Bastin, J. A.

doi:10.1038/283108a0

Cited by 6 publications

(5 citation statements)

References 6 publications

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“…However, we believe that the discussion given by Bastin (1980) constitutes very strong evidence in favour of the rotational hypothesisevidence whch is strengthened by the results of the analysis given in the present paper.…”

Section: Introductionsupporting

confidence: 77%

Interferometric studies of lunar globules

Ross

Bastin

1984

Geophysical Journal International

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The theory of rotating liquid masses under the action of centrifugal and surface tensional forces is discussed. The theory is then compared with an interferogram of a %nar globule published by Tolansky. The comparison gives strong support for the rotational hypothesis for the formation of the smooth elongated shapes of lunar globules. It is further suggested that many of the apparently perfect spheres whose photographs have appeared in the literature are in fact not spheres, but oblate objects which, on a flat surface, appear circular when photographed from above. The advantages of the use of interferometry which gives sets of coordinates in three dimensions for points on the surfaces of globules are emphasized.

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Section: Introductionsupporting

confidence: 77%

Interferometric studies of lunar globules

Ross

Bastin

1984

Geophysical Journal International

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“…One of the contentious debates concerning glassy lunar particles in the 1970s was whether rod, teardrop, and dumbbell morphologies were formed as a result of (1) the translational breakup of a spray or thin jet of molten regolith (e.g., Chernyak & Nussinov, 1976) or (2) spray droplets gaining rotational momentum and subsequently undergo centrifugation causing their breakup (e.g., Pugh, 1972; Bastin & Volborth, 1974; Bastin, 1980). There is experimental evidence in the literature to support both mechanisms.…”

Section: Resultsmentioning

confidence: 99%

“…While numerous monochrome light micrographs of lunar soil particles can be found throughout the literature (e.g., Burlingame et al, 1970; Mueller & Hinsch, 1970; Bastin, 1980), few high magnification color micrographs have been published. The quality of the image obtained with an optical microscope is typically limited by the depth of field of the objective lens.…”

Section: Introductionmentioning

confidence: 99%

A New Look at Lunar Soil Collected from the Sea of Tranquility during the Apollo 11 Mission

2010

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Complementary state-of-the-art optical, scanning electron, and X-ray microscopy techniques have been used to study the morphology of Apollo 11 lunar soil particles (10084-47). The combination of innovative lighting geometries with image processing of a through focal series of images has allowed us to obtain a unique collection of high-resolution light micrographs of these fascinating particles. Scanning electron microscopy (SEM) stereo-pair imaging has been exploited to illustrate some of the unique morphological properties of lunar regolith. In addition, for the first time, X-ray micrographs with submicron resolution have been taken of individual particles using X-ray ultramicroscopy (XuM). This SEM-based technique lends itself readily to the imaging of pores, cracks, and inclusions and allows the internal structure of an entire particle to be viewed. Rotational SEM and XuM movies have also been constructed from a series of images collected at sequential angles through 360°. These offer a new and insightful view of these complex particles providing size, shape, and spatial information on many of their internal features.

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“…月球火山喷发在流出大量岩浆形成玄武岩的同时, 还会由于气体发生剧烈释放, 产生的形态来区分他们的成因 [46] . 但是陨石的高速撞击会给液体带来剧烈的溅射效果, 使得液体在飞出的时候同时产生旋转, 旋转产生的离心力便会将液体拉长直至液体冷却至黏度足以和离心力相抗衡 (图3(q)), 最终导致拉长至不同阶段的液体被固定保存了下来 [46][47][48][49] .…”

Section: 在月球上火山活动和陨石撞击是产生熔融液体的unclassified

Lunar glass

Zhao,

Shen,

Chang

et al. 2023

Acta Phys. Sin.

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Lunar glass, a significant component of lunar soil, is produced by non-equilibrium processes on the Moon, such as volcanic eruptions, meteorite impacts, solar wind, and cosmic radiation. Lunar glasses with different origins have abilities to record historical information of the Moon's formation and evolution. This article presents a comprehensive review of the research progress on lunar glass found within the CE-5 lunar soil. Delving into its fundamental physical properties and microstructure, we explore the specific mechanisms underlying the formation of lunar glass. Furthermore, the investigation focuses on the diverse roles lunar glass plays in lunar evolution studies, such as acting as a "natural camera" that captures the moon's internal and surface changes over different epochs, encompassing lunar origin, magma activity, impact events, space weathering, and the origin of water, etc. The ultra-stable lunar glasses with disordered atomic structure allow for the enduring preservation of lunar resources. Remarkably, it is estimated to harbor substantial reserves of <sup>3</sup>He, approximately 260,000 tons, and an astounding 27 billion tons of water. Moreover, lunar glass serves as an invaluable lunar chronometer, providing a reliable temporal framework for dating volcanic activity and impact events. This temporal framework, in turn, serves as a vital tool for investigating the evolution of lunar water, magnetic fields, and reconstructing an extensive billion-year history of lunar impacts.

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Rotating lunar globules

Cited by 6 publications

References 6 publications

Interferometric studies of lunar globules

Interferometric studies of lunar globules

A New Look at Lunar Soil Collected from the Sea of Tranquility during the Apollo 11 Mission

Lunar glass

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