Results 11 to 20 of about 1,508 (237)

On the survivability and detectability of terrestrial meteorites on the moon [PDF]

, 2008
Materials blasted into space from the surface of early Earth may preserve a unique record of our planet's early surface environment. Armstrong et al. (2002) pointed out that such materials, in the form of terrestrial meteorites, may exist on the Moon and
Taylor, E.A., Tsembelis, K., Crawford, Ian, Baldwin, E.C., Bailey, J.A.   +4 more
core   +1 more source

Extended chronologies of aqueous alteration in the CM2 carbonaceous chondrites: evidence from carbonates in Queen Alexandra Range 93005 [PDF]

, 2012
The Antarctic CM2 carbonaceous chondrite QUE 93005 contains four compositionally distinct carbonates, namely breunnerite, calcite, dolomite and a Ca-poor dolomite. These carbonates can form monomineralic grains, or may be intergrown as bimineralic grains
Alexander, C., Lindgren, P., Lee, M., Sofe, M., Wang, J.   +4 more
core   +1 more source

Lunar Mineralogical Spectrometer on Chang’E-5 Mission

Space Science Reviews, 2022
AbstractThe Lunar Mineralogical Spectrometer (LMS) is one of the main payloads on the Chang’E-5 (CE-5) lunar probe, belonging to the China Lunar Exploration Program. The scientific objective of the LMS is to explore the mineralogical composition and search for evidence of -OH/H2O in the sampling area.
Rui Xu, Chunlai Li, Liyin Yuan, Gang Lv, Sheng Xu, Feifei Li, Jian Jin, Zhendong Wang, Wei Pan, Rong Wang, Meizhu Wang, Jianan Xie, Jie Yang, Jianyu Wang, Zhiping He   +14 more
openaire   +1 more source

Lunar meteorite regolith breccias: an in situ study of impact melt composition using LA-ICP-MS with implications for the composition of the lunar crust

, 2010
Dar al Gani (DaG) 400, Meteorite Hills (MET) 01210, Pecora Escarpment (PCA) 02007, and MacAlpine Hills (MAC) 88104/88105 are lunar regolith breccia meteorites that provide sampling of the lunar surface from regions of the Moon that were not visited by ...
Crawford, Ian A., Katherine H. JOY, Sara S. RUSSELL, Joy, K.H., Ian A. CRAWFORD, Joy, Katherine H., Anton T. KEARSLEY, Russell, Sara S., Kearsley, Anton T., Crawford, Ian, Russell, S.S., Kearsley, A.T.   +11 more
core   +1 more source

Mineralogy, petrology, and geochemistry of the lunar samples [PDF]

Eos, Transactions American Geophysical Union, 1971
On July 24, 1969, the first extraterrestrial samples, with the exception of meteorites, were returned to earth by Apollo 11. Since then these samples and the samples returned by Apollo 12 have been subjected to scientific investigations by hundreds of scientists from many countries.
openaire   +2 more sources

A Spectrophotometric Evaluation of Lunar Catharina Crater Using Support Vector Regression Analysis for FeO and TiO₂ Estimations [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Support Vector Regression (SVR) is an extended version of the Support Vector Machine (SVM) algorithm. It is an effective machine learning tool for handling huge complex data sets. SVR algorithm is introduced to the existing lunar FeO and TiO2 concentrate
A. K. Padinharethodi, A. K. Padinharethodi, S. Kumar, Advaith C A   +3 more
doaj   +1 more source

MINERALOGICAL ANALYSIS OF LUNAR ROCK PARTICLES

Le Journal de Physique Colloques, 1976
Mössbauer measurements on 57Fe in a series of LUNA-16 and LUNA-20 coarsegrain (mostly containing two distinct minerals) as well as fine-grain rock fragments have been performed. The diameter of the particles ranges from 0.2 to 0.5 mm ; a device for their reproducible adjustment and centering has been developed.
Zemčík, T., Raclavský, K.
openaire   +2 more sources

Constraining the Protoliths of the Apollo Granulite Suite

The Planetary Science Journal
The Apollo granulite suite represents the metamorphosed products of impact-contaminated polymict and monomict lunar breccias. We combine bulk and mineral major and trace element systematics with noble gas isotopes to constrain the highland lithologies ...
J. F. Pernet-Fisher, K. H. Joy, M. Nottingham, M. E. Hartley, R. Tartèse   +4 more
doaj   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Mineralogy of the lunar crust: Results from Clementine [PDF]

Meteoritics & Planetary Science, 1999
Abstract— The central peaks of 109 impact craters across the Moon are examined with Clementine ultraviolet‐visible (UVVIS) camera multispectral data. The craters range in diameter from 40 to 180 km and are believed to have exhumed material from 5–30 km beneath the surface to form the peaks, including both upper and lower crustal rocks depending on ...
Stefanie TOMPKINS, Carlé M. PIETERS
openaire   +1 more source