3 edition of Workshop on lunar volcanic glasses found in the catalog.
Workshop on lunar volcanic glasses
|Statement||edited by John W. Delano and Grant H. Heiken.|
|Series||LPI technical report -- 90-02., NASA CR -- 186631., NASA contractor report -- NASA CR-186631.|
|Contributions||Delano, John W., Heiken, Grant., Lunar and Planetary Institute. Lunar and Planetary Sample Team., United States. National Aeronautics and Space Administration.|
|The Physical Object|
A.L. Bush, in Encyclopedia of Materials: Science and Technology, (a) Perlite. Perlite, obsidian, and pitchstone are volcanic glasses that differ in water content: obsidian, less than 2% H 2 O; perlite, 2–5%; and pitchstone, more than 5%. The general range of composition (Bush , p. ) is 70–75% SiO 2, and about 10–15% Al 2 O water content is critical to expansion, but. Volcanic glass is unstable and tends to change spontaneously (devitrify) from the glassy to the crystalline state in periods of time that are relatively short by geologic standards; the material takes on a stony appearance due to the presence of minutely crystalline ically ancient glasses are therefore very rare, and most glassy rocks are of Paleogene age or younger (less than.
The black and orange glasses present in /2 represent pyroclastic deposits, formed by the rapid quenching of molten silicate droplets that were ejected into the lunar atmosphere during the explosive volcanic eruption of ultramafic magmas onto the lunar surface along the rim of mare Serenitatis. The source regions of these magmas may have. NASA Astromaterials Curation, an integral part of any sample return mission, comprises preparation and allocation of samples for research and education, initial characterization of new samples, and secure storage for the benefit of future generations. Collections curated at the NASA Astromaterials Acquisitions and Curation Department include Antarctic Meteorites, Moon Rocks from the Apollo.
Lunar volcanic glasses contain a huge amount of information about the lunar interior, in part because of the wide range in their chemical compositions. This compositional difference shows up in the colors of the glasses--red have the highest titanium (about 15 wt% TiO2) and green the lowest (less than 1 wt% TiO2). 1 Introduction. Lunar glasses (Figure 1) were found to be abundant in the Apollo regolith samples, constituting about half of the fines in the first Apollo 11 regolith investigations (LSPET, ).Varieties of impact glass include particles, surface coatings, and porous glassy aggregates, but only studies of glass particles, hereafter called impact glasses, will be discussed herein.
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Glasses: Scientific and Resource Potential" that was held at the Lunar and Planetary Institute on OctoberThis workshop on lunar mare volcanism was the first since to deal with the major scientific advances that have occurred in this general subject, and the first ever to deal specifically with volcanic glasses.
This workshop on lunar mare volcanism was the first since to deal with the major scientific advances that have occurred in this general subject, and the first ever to deal specifically with volcanic glasses.
Lunar volcanic glasses are increasingly being recognized as the best geochemical and petrologic probes into the lunar mantle. Workshop on Lunar Volcanic Glasses: Scientific and Resource Potential. A Lunar and Planetary Institute WorkshopCited by: 1. Workshop on lunar volcanic glasses: scientific and resource potential, held at Lunar and Planetary Institute, Houston, Texas, OctoberAuthor: John W Delano ; Grant Heiken ; Lunar and Planetary Institute.
NLSI Workshop Without Walls: Lunar Volatiles (Part 1) The NASA Lunar Science Institute announces a virtual meeting to present and discuss the latest research regarding volatiles on the Moon.
Recent data have revealed volatiles not only in permanently shadowed regions near the lunar poles, but also in near-surface cold traps and as a veneer on. Delano JW, Livi K () Lunar volcanic glasses and their constraints on mare petrogenesis. Geochim Cosmochim Acta – ADS CrossRef Google Scholar Elardo SM, Shearer CK Jr, Fagan AL et al () The origin of young mare basalts inferred from lunar Workshop on lunar volcanic glasses book Northwest Africa, and LaPaz Icefield The rover is on the rim of Shorty Crater, an impact crater m in diameter, which has excavated dark material (volcanic pryoclastic glasses) from beneath the light mantle (highlands debris).
LM Pilot Jack Schmitt prepares to study, sample, and characterize the dark ejecta deposits of this. crater. These glassy materials can be broadly classified into four groups: volcanic glasses, impact glasses, agglutinates, and “other.” At least two materials found in the lunar regolith, water and helium-3, may be important for human settlement.
A report providing improved limits on the indigenous volatile contents of the most primitive basalts in the Moon, the lunar volcanic glasses. The best estimate of. The best estimate of the pre-eruptive water content of the lunar volcanic glasses is p.p.m.
water, with a minimum of p.p.m., indicating that. Feature like cones and domes on the surface are clear indicators that volcanic activity occurred in the area. Measurements from the Orbiter’s Diviner Lunar Radiometer show evidence that the rocks are rich in silica –meaning they’re composed of hardened magma.
The vast majority of lunar volcanic activity took place between 3 – 4 billion years ago, with the commonly accepted end of lunar volcanism being 1 – billion years ago.
Some of the most recent cone, dome, IMP, and TLP activity may date as recently as a. The Lunar Science for Landed Missions workshop was held on 10–12 January, at NASA Ames Research Center and was attended by both lunar scientists and representatives from commercial companies.
The workshop was cosponsored by the Solar System Exploration Research Virtual Institute (SSERVI) and the Lunar Exploration Analysis Group (LEAG). Back inApollo 15 astronauts orbiting the Moon photographed something very odd. Researchers called it "Ina," and it looked like the aftermath of a volcanic eruption.
There's nothing odd about volcanoes on the Moon, per se. lunar volcanic glasses, and the high pre-eruptive abun-dance of water in melt inclusions from one of these samples, has provided the first definitive evidence for the accretion and retention in the Moon’s interior of one of the most volatile elements in the solar system.
The Workshop on Apollo 16 is held at the LPI. Convened by Odette James and Fred Hörz, the workshop is the first of a series of meetings organized by the Lunar and Planetary Sample Team (LAPST) as part of the Highlands Initiative, an effort aimed at the improved understanding of the early evolution of the lunar crust.
The Lunar and Planetary Sample Team (LAPST), predecessor to CAPTEM, hosted three workshops in the early 's: Workshop on the Origin of Lunar Volcanic Glasses (), Workshop on the Physics and Chemistry of Magma Oceans (), and Workshop on. The lunar volcanic glass exposed by the first and only scientist to walk on the Moon may be a signal to us, today, that this is what's truly needed if we want to uncover the truths about the rest.
The results of high-pressure and high-temperature laboratory melting experiments on lunar mare basalts and volcanic glasses, along with geochemical evidence and physical modeling, affirm that remelting of the solidified products of a deep magma ocean still provides the best explanation for lunar.
Glass Beads From Moon Hint Of Watery Past New analysis of tiny beads of volcanic glass collected by Apollo astronauts suggest the moon once contained enough water to. 85 works Search for books with subject Lunar geology.
Search. Scaling impact-melt and crater dimensions Mark J. Cintala Workshop on lunar volcanic glasses Workshop on Lunar Volcanic Gla Not In Library.
Read. Significant achievements in the planetary program, Here we make use of considerable advances in secondary ion mass spectrometry to obtain improved limits on the indigenous volatile (CO 2, H 2 O, F, S and Cl) contents of the most primitive basalts in the Moon-the lunar volcanic glasses.
Although the pre-eruptive water content of the lunar volcanic glasses cannot be precisely constrained.Volatile content of lunar volcanic glasses and the presence of water in the Moon's interior Article (PDF Available) in Nature () August with Reads How we measure 'reads'.