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Moon 2
Friday, August 2, 2024, 1:30 PM
King Baudouin Room
Chairs:
Paul Warren
Daniel Sheikh
Daniel Sheikh
1:30 PM
Hidaka H.*
Nishiizumi K.
Caffee M.
Yoneda S.
Ytterbium Isotopic Compositions of Lunar Meteorites
[#6114]
In this study, as a new attempt for better understanding the neutron energy balance occurred in planetary materials, the use of Yb isotopic variations together with Sm, Gd, and Er isotopic variations is discussed.
In this study, as a new attempt for better understanding the neutron energy balance occurred in planetary materials, the use of Yb isotopic variations together with Sm, Gd, and Er isotopic variations is discussed.
1:45 PM
Snape J. F.*
Nemchin A. A.
Whitehouse M. J.
Pb Isotope Analyses of Northwest Africa 11444 — Early Lunar Evolution Insights
[#6273]
Pb isotope analyses of clasts within lunar meteorite NWA 11444 provide a glimpse of primitive low U/Pb reservoirs of crustal rock, distinct from those observed in Apollo samples. We discuss the implications for the Moon's early evolution.
Pb isotope analyses of clasts within lunar meteorite NWA 11444 provide a glimpse of primitive low U/Pb reservoirs of crustal rock, distinct from those observed in Apollo samples. We discuss the implications for the Moon's early evolution.
2:00 PM
Che X. C.*
Nemchin A. A.
Long T.
Ban Y. Y.
Li Z. S.
et al.
Fe-Metal Grains with Associated Apatite and Zircon in Lunar Meteorites
[#6161]
The exogenous metal grains in lunar impact melts and breccias can be associated with phosphate/zircon, allowing timing constraints on the chemical information obtained from the metal grains. We tested three of the above minerals from two meteorites.
The exogenous metal grains in lunar impact melts and breccias can be associated with phosphate/zircon, allowing timing constraints on the chemical information obtained from the metal grains. We tested three of the above minerals from two meteorites.
2:15 PM
Distel A. G.*
Davidson J.
Wadhwa M.
Hervig R. L.
The H2O-δD Systematics of Nominally Anhydrous Minerals in the Shocked Lunar Basaltic Meteorites Miller Range 05035 and Asuka 881757
[#6205]
We report the water contents and hydrogen isotopes of nominally anhydrous minerals, such as pyroxene and olivine, in the shocked lunar basaltic meteorites Miller Range 05035 and Asuka 881757.
We report the water contents and hydrogen isotopes of nominally anhydrous minerals, such as pyroxene and olivine, in the shocked lunar basaltic meteorites Miller Range 05035 and Asuka 881757.
2:30 PM
Warren P. H.*
Zhang B.
Isa J.
Korotev R. L.
Diverse Iron Contents in Lunar Plagioclase, and Implications for Remote Sensing of Plagioclase Abundance
[#6227]
Remote measurement of abundance of lunar plagioclase using its 1.25 µm iron band is problematic. New EPMA data show plutonic plagioclase Fe ranging from 0.030 to 0.137 wt%. Impact melted (fast-cooled) highland rocks have even higher plagioclase Fe.
Remote measurement of abundance of lunar plagioclase using its 1.25 µm iron band is problematic. New EPMA data show plutonic plagioclase Fe ranging from 0.030 to 0.137 wt%. Impact melted (fast-cooled) highland rocks have even higher plagioclase Fe.
2:45 PM
Kling A. M.*
Rahman Z.
Thompson M. S.
Zega T. J.
Simulating Lunar Surface Processes in the Lab: Developing FIB Procedures for In Situ TEM Heating Experiments of Space Weathered Lunar Grains
[#6369]
We developed a FIB procedure to produce transmission electron microscopy (TEM) sections of lunar grains and transfer them to microelectromechanical systems chips for TEM analyses and in situ heating experiments to simulate space weathering processes.
We developed a FIB procedure to produce transmission electron microscopy (TEM) sections of lunar grains and transfer them to microelectromechanical systems chips for TEM analyses and in situ heating experiments to simulate space weathering processes.
3:00 PM
Thiemens M. M.*
Martinez M. H. N.
Thiemens M. H.
Are Micrometeorites Watering the Lunar Surface?
[#6434]
We analyzed nine Apollo lunar samples for the oxygen content of their water, finding an ordinary or enstatite source, with potential mixing from comets.
We analyzed nine Apollo lunar samples for the oxygen content of their water, finding an ordinary or enstatite source, with potential mixing from comets.
3:15 PM
Fegley B.*
Lodders K.
Chemistry of Wet BSE Material During the Moon-Forming Impact
[#6366]
We present results of chemical equilibrium calculations modeling chemistry of wet bulk silicate Earth material during the Moon-forming impact and give 50% condensation temperatures.
We present results of chemical equilibrium calculations modeling chemistry of wet bulk silicate Earth material during the Moon-forming impact and give 50% condensation temperatures.
*presenter
