FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275...
Transcript of FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275...
FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW:
How And Why The Last Lunar Samples Were Collected
Harrison H. SchmittLunar Science For Landed Missions Workshop
Ames Research CenterJanuary 10, 2018
5.
9.
70001-9,70011-295
Station1Boulder
AgeGa
71040-175
71500
Tranquilitatis (?)Clasts/Tracks72255,722754.08±0.08Ga
Rb-Sr
Procellarum (?)Zircons72215,73217
4.333±0.007GaPb-Pb
ReportedAgesLayeredSouthMassifBreccia - Boulder1,
Station2
Serenetatis ?ImpactMelt722553.887Ga (Ave.3)
40-39Ar
Fecunditatis (?)Micro-GraniteClasts
72255,722154.03±0.03Ga
Rb-Sr
Crisium(?)Whitlockite
722753.98±0.05Ga
Tracks
Crisium(?)GraniteClasts
72215,72255,722753.95±0.03Rb-Sr
72215-75
72315-395
10 CM
72415
72435
72440,460
73130-134
73220-80
73001/2
74220-60
74001/2
PlanarTopRearofboulder
shadow75075
75055ACB
PlanarTopRearofboulder
x
x75075
75055AB
C
75055
Crisium(?)Blue-GrayMelt-Breccia
762953.93±0.04Ga
40Ar/39Ar
Crisium(?)Intrusive/Extrusive
Tan-GrayMelt-Breccia76215
3.91±0.04Ga40Ar/39Ar
50cm
VesicularContact
MetamorphicZone
BoulderatStation6
MetamorphosedBlue-GrayMelt-Breccia
771153.84±0.02Ga
40Ar/39ArSernitatis(?)Light-GrayMelt-Breccia
771353.83±0.04Ga
40Ar/39Ar
20cm
NoriteClast4.42±0.1Ga
Pb-Pb
BoulderatStation7
ContactMetamorphicZone
76500
78235-8
78420-80
79115-195
79001/2
79215
Orientationof70019
70215
76535BSEImagesfromElardoetal.2012
OPXCPX
Relictgrainboundarymaybepre-garnet,olivine-plag boundary
Cr-SPLCPXOPX