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Earth and Planetary Sciences
Spherule
100%
Regolith
93%
Landing Site
89%
Lunar Soil
54%
Mare Basalt
52%
Volcanic Glass
48%
Aluminum Oxide
43%
Trace Element
39%
Basalt
28%
Zirconium
22%
Source Rock
21%
Rapakivi
20%
Sedimentary Sequence
20%
Solar System
20%
Batholith
20%
Svecofennian
20%
Isotopic Composition
20%
Magma
15%
Rare Earth Element
15%
Fractionation
14%
Terrane
13%
Transportation
12%
Peridotite
12%
Precambrian
10%
Granitoid
10%
Cratering
10%
Nucleation
10%
Ejecta
10%
Isotopic Analysis
10%
Pyroclastic Deposit
10%
Ballistics
10%
Magnetite
10%
Volatile Element
9%
Lithophile Element
9%
Sedimentary Rock
8%
Quartzite
8%
Lithic Fragment
8%
Depositional Environment
8%
Volcanism
8%
Zincblende
7%
Xenolith
7%
Indium
7%
Secondary Ion Mass Spectrometry
7%
Volcanic Eruption
6%
Lunar Crust
6%
Impact Melt
6%
Age Distribution
5%
Probability Theory
5%
Anorthosite
5%
Volcanic Rock
5%
Keyphrases
Spherules
41%
Impact Glass
27%
Volcanic Glass
27%
Lunar Soil
27%
Lunar Regolith
27%
Apollo 11
20%
Solar System
20%
Glass Beads
20%
Volcanic History
20%
Apollo 17
20%
Mare Basalt
13%
Lunar Glass
13%
U-Pb Age
13%
Regolith
13%
Pb Isotopes
13%
Landing Site
13%
Lithic Fragment
8%
Mare
6%
Highlands
6%
Impact Melt
6%
Impact Event
6%
U-Th-Pb
6%
Volcanic Lava
6%
Lava Fountaining
6%
Impact Processes
6%
Soil Samples
6%
High-Ti
6%
Compositional Evolution
6%
Volcanic Eruption
6%
Impact Flux
6%
Tiny Particles
6%
Lunar Interior
6%
Soil Cover
6%
Mantle Composition
6%
Regolith Processes
6%
Lunar Chronology
6%
Low-Ti Basalts
6%
Two-directional
6%
Element Element
6%
Well-defined
6%
Trace Element Composition
6%
Isotopic Analysis
6%
SIMS U-Pb
6%
Pyroclastic Deposits
6%
U-Pb Chronology
6%
Slow Cooling
6%
Glassy Particles
6%
Lava
6%
Rapidly Quenching
6%
Lunar Crust
6%