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FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW: How And Why The Last Lunar Samples Were Collected Harrison H. Schmitt Lunar Science For Landed Missions Workshop Ames Research Center January 10, 2018

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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

Page 2: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

Page 3: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

Page 4: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

70001-9,70011-295

Page 5: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

Station1Boulder

AgeGa

71040-175

Page 6: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

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

Page 8: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

72315-395

Page 9: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

10 CM

72415

72435

72440,460

Page 10: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

73130-134

Page 11: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

73220-80

Page 12: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

73001/2

Page 13: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

74220-60

74001/2

Page 14: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

PlanarTopRearofboulder

shadow75075

75055ACB

Page 15: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

PlanarTopRearofboulder

x75075

75055AB

Page 16: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

75055

Page 17: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

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

Page 18: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

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

Page 19: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

76500

Page 20: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

78235-8

Page 21: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

78420-80

Page 22: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

79115-195

Page 23: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

79001/2

79215

Page 24: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

Orientationof70019

Page 25: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

70215

Page 26: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

Page 27: FIELD GEOLOGY IN THE VALLEY OF TAURUS-LITTROW · Tranquilitatis (?) Clasts/Tracks 72255,72275 4.08±0.08 Ga Rb-Sr Procellarum(?) Zircons 72215, 73217 4.333±0.007 Ga Pb-Pb Reported

76535BSEImagesfromElardoetal.2012

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