14307 - nasa · 2015. 5. 28. · 14307 is a clast-rich regolith breccia with glass spheres and...

14307 Regolth Breccia

155 grams

Clast A

Figure 1: Photo of 14307. Sample is about 7 cm long. NASA S71-30361.

Figure 2: West end of 14307 is hackly.Cube is 1 cm. S71-28488.

Figure 3: East end of 14307. Cube is 1 cm. S71-28479.

Introduction 14307 was picked up at station G near the trench and one side (Horz 1972). It contains glass in the matrix, core tubes (figure 4). Its lunar orientation is known so it is a regolith breccia. It also has excess 40Ar so it from the micrometeorite removal of glass splatter on may be considered an ancient regolith breccia.

Mineral Clasts

Apollo 14

CMB (Fra Mauro)

Regolith breccias

Light matrix breccia

14307

Figure 4: Traverse map for Apollo 14 with location of 14307.

Lithic Clasts Glass

Figure 5: Simonds diagram for Apollo 14 breccias.

14307

Crys

tallin

e-M

atrix

-Bre

ccia

s

Lunar Sample Compendium C Meyer 2011

Figure 6: Photomicrograph of thin section 14307,41 with large clast of impact melt breccia. S71-38802. Field of view is ~1.5 cm.

Petrography 14307 is a clast-rich regolith breccia with glass spheres and agglutinates in the matrix (Fruland 1983). Simonds et al. (1977) classified it as a vitric matrix breccias with abundant clasts (figure 5). Simon et al. (1989) compared 14307 with other Apollo 14 regolith breccias and Delano (1987) studied the numerous glass spheres.

There are two large clasts (>5 mm). Clast A is exposed on the east end (figure 1 and 11). Clast B is rounded and was found in the slabs made through the center of the sample. One of these clasts has a portion that is mare basalt (figure 9).

Chemistry The Apollo 14 regolith breccias (vitric matrix breccias) are slightly more aluminous than the Fra Mauro breccias (crystalline matrix breccias) (figure 7). 14307 has a high content of REE (figure 8).

13

12

11

10

FeO wt. % 9

8

7

6

5

Apollo 14 breccias 14307

CMB VMB

12 13 14 15 16 17 18 19 20 21 22 23

Al2O3 wt. %

Figure 7: Composition of Apollo 14 breccias with 14307.

1000

100

sample/ chondrite

10

1

0.1

14307

KREEP

La Pr Sm Gd Dy Er Yb Ce Nd Eu Tb Ho Tm Lu

Figure 8: Normalized rare-earth-element diagram for 14307, compared with KREEP.

Other Studies Bogard and Nyquist (1972) found very high 22Ne in the dark portion of 14307. Bernatowitz et al. (1977) and Eugster et al. (2001) also studied trapped, fissionogenic and cosmogenic noble gases in 14307. There is an excess of 40Ar in the matrix (figure 10).

Mineralogical Mode for 14307 Simonds et Simon et al 1977 al. 1989

Matrix 65 % 58 Clasts Plagioclase 1.5 4.4 Mafic 3 6.1 Breccia 12 Glass 1 9.3 Agglutinate 1 2 Granulite 9 1.4 Mare basalt 6.5 1.2


Figure 9: 14307,40 scale = 2.8 mm across. Side by side photos by C Meyer.


Table 1. Chemical composition of 14307.

reference Hubbard72 Wiesmann76 Simon 89 weight Hubbard72 162 mg SiO2 % 46.9 (b) matrix TiO2 1.84 (b) 1.75 1.98 (a) 1.93 (c ) Al2O3 16.5 (b) 16.2 (c ) FeO 12.3 (b) 10.4 (c ) MnO 0.14 (b) 0.153 (c ) MgO 9.76 (b) 10.9 9.45 (a) 9.7 (c ) CaO 10.8 (b) 10.8 10.5 (a) 9.7 (c ) Na2O 0.7 (b) 0.9 0.75 (a) 0.82 (c ) K2O 0.55 (b) 0.64 0.59 (a) 0.84 (c ) P2O5 0.51 (b) S % 0.1 (b) sum

Sc ppm 21.4 (c ) V 42 (c ) Cr 1574 (b) 1290 (c ) Co 29 (c ) Ni 251 (b) 290 (c ) Cu Zn Ga Ge ppb As Se Rb 14 (b) 16 15.3 (a) 28 (c ) Sr 163 (b) 192 166 (a) 130 (c ) Y 188 (b) Zr 842 (b) 740 (c ) Nb 53 (b) Mo Ru Rh Pd ppb Ag ppb Cd ppb In ppb Sn ppb Sb ppb Te ppb Cs ppm 1.1 (c ) Ba 890 735 (a) 920 (c ) La 78.4 (c ) Ce 230 164 (a) 187 (c ) Pr Nd 138 99.2 (a) 112 (c ) Sm 38.8 28 (a) 33.4 (c ) Eu 2.74 2.25 (a) 2.5 (c ) Gd 34 (a) Tb 6.5 (c ) Dy 52 37.2 (a) 48 (c ) Ho Er 30.1 22.9 (a) Tm Yb 28 20.6 (a) 24.5 (c ) Lu 3.06 (c ) Hf 21.7 (c ) Ta 3.2 (c ) W ppb Re ppb Os ppb Ir ppb 5 (c ) Pt ppb Au ppb 5.2 (c ) Th ppm 12 (b) 13 (c ) U ppm 4.9 3.28 (a) 3.5 (c ) technique: (a) IDMS, (b) XRF, (c ) INAA

Figure 10: Excess 40Ar diagram by Eugster et al. (2001).

Berdot et al. (1972) and Poupeau et al. (1972) determined the cosmic ray tracks and discussed the solar wind gas contents of 14307.

Processing 14307 was picked up at station G, placed in bag 25N and returned in weigh bag 1031. Two slabs were cut from the middle with the wire saw (figures 11 and 12).

For some reason or other there are 30 thin sections of 14307.


Clast A

Figure 11: Two slabs cut from 14307. Cube is 1 inch. S71-30381

Clast A

Figure 12: Two slabs cut from 14307. Cube is 1 inch. S71-30383


Clast B


14307 155 grams

C Meyer 2011

,3 ,4 ,5 ,8

,12 PB

,1 16 g ,2 ,19

,19 21 g

,110 4.3 g

,23 PB

,24 0.6 g

,25 PB

,20 ,22 40 g

,107 6.3 g

,21

,26 12.8 g

,27

,28 15 g

partial

,9 ,13 ,10 ,14 ,11 ,15 TS ,16

,67 ,17 ,18 TS

References for 14307 Berdot J.L., Chetrit G.C., Lorin J.C., Pellas P. and Poupeau G. (1972) Track studies of Apollo 14 rocks and Apollo 14, Apollo 15 and Luna 16 soils. Proc. 3rd Lunar Sci. Conf. 2867-2881.

Berdot J.L., Chetrit G.C., Lorin J.C., Pellas P. and Poupeau G. (1972) Irradiation studies of lunar soils: 15100, Luna 20 and compacted soil from breccia 14307. The Apollo 15 Samples, 333-335. LPI

Bernatowitz T., Drozd R.J., Hohenberg C.M., Lugmair G., Morgan C.J. and Podosek F.A. (1977) The regolith history of 14307. Proc. 8th Lunar Sci. Conf. 2763-2783.

Bogard D.D. and Nyquist L.E. (1972) Noble gas studies on regolith materials from Apollo 14 and 15. Proc. 3rd Lunar Sci. Conf. 1797-1819.

Carlson I.C. and Walton W.J.A. (1978) Apollo 14 Rock Samples. Curators Office. JSC 14240

Chao E.C.T., Minkin J.A. and Best J.B. (1972) Apollo 14 breccias: General characteristics and classification. Proc. 3rd Lunar Sci. Conf. 645-659.

Chen H.-K., Delano J.W. and Lindsley D.H. (1982) Chemistry and phase relations of VLT volcanic glasses from Apollo 14 and Apollo 17. Proc. 13th Lunar Planet. Sci. Conf. A171-A181.

Delano J.W. (1987) Apollo 14 regolith breccias: Different glass populations and their potential for charting space/time variations. Proc. 18th Lunar Planet Sci. Conf. 59-65.

Epstein S. and Taylor H.P. (1972) O18/O16, Si30/Si28, C13/ C12 and D/H studies of Apollo 14 and 15 samples. Proc. 3rd Lunar Sci. Conf. 1429-1454.

,40 ,36

,43 ,39 ,49 ,44

,51 ,47 TSTS

Eugster O., Terribilini Dario, Polnau E. and Kramers J. (2001) The antiquity indicator argon-40/argon-36 for lunar surface camples calibrated by uranium-235-xenon-136 dating. Meteoritics & Planet. Sci. 36, 1097-1115.

Fruland R.M. (1983) Regolith Breccia Workbook. JSC 19045

Hörz F., Morrison D.A. and Hartung J.B. (1972) The surface orientation of some Apollo 14 rocks. Modern Geology 3, 93-104.

Hubbard N.J., Gast P.W., Rhodes J.M., Bansal B.M., Wiesmann H. and Church S.E. (1972) Nonmare basalts: Part II. Proc. 3rd Lunar Sci. Conf. 1161-1179.

LSPET (1971) Preliminary examination of lunar samples from Apollo 14. Science 173, 681-693.

Lugmair G.W. and Carlson R.W. (1978) The Sm-Nd history of KREEP. Proc. 9th Lunar Planet. Sci. Conf. 689-704.

Nyquist L.E., Hubbard N.J., Gast P.W., Church S.E., Bansal B.M. and Wiesmann H. (1972) Rb-Sr systematics for chemically defined Apollo 14 breccias. Proc. 3rd Lunar Sci, Conf. 1515-1530.

Phinney W.C., McKay D.S., Simonds C.H. and Warner J.L. (1976a) Lithification of vitric- and elastic-matrix breccias: SEM photography. Proc. 7th Lunar Sci. Conf. 2469-2492.

Poupeau G., Pellas P., Lorin J.C., Chetrit G.C. and Berdot J.L. (1972) Track analysis of rocks 15058, 15555, 15641 and 14307. The Apollo 15 Samples. 385-387. LPI


Simon S.B., Papike J.J., Shearer C.K., Hughes S.S. and Schmitt R.A. (1989) Petrology of Apollo 14 regolith breccias and ion microprobe studies of glass beads. Proc. 19th Lunar Planet. Sci. Conf. 1-17.

Simonds C.H., Phinney W.C., Warner J.L., McGee P.E., Geeslin J., Brown R.W. and Rhodes J.M. (1977) Apollo 14 revisited, or breccias aren’t so bad after all. Proc. 8th Lunar Sci. Conf. 1869-1893.

Sutton R.L., Hait M.H. and Swann G.A. (1972) Geology of the Apollo 14 landing site. Proc. 3rd Lunar Sci. Conf. 2738.

Swann G.A., Trask N.J., Hait M.H. and Sutton R.L. (1971a) Geologic setting of the Apollo 14 samples. Science 173, 716-719.

Swann G.A., Bailey N.G., Batson R.M., Eggleton R.E., Hait M.H., Holt H.E., Larson K.B., Reed V.S., Schaber G.G., Sutton R.L., Trask N.J., Ulrich G.E. and Wilshire H.G. (1977) Geology of the Apollo 14 landing site in the Fra Mauro Highlands. U.S.G.S. Prof. Paper 880.

Swann G.A., Bailey N.G., Batson R.M., Eggleton R.E., Hait M.H., Holt H.E., Larson K.B., McEwen M.C., Mitchell E.D., Schaber G.G., Schafer J.P., Shepard A.B., Sutton R.L., Trask N.J., Ulrich G.E., Wilshire H.G. and Wolfe E.W. (1972) 3. Preliminary Geologic Investigation of the Apollo 14 landing site. In Apollo 14 Preliminary Science Rpt. NASA SP-272. pages 39-85.

Tatsumoto M., Hedge C.E., Doe B.R. and Unruh D.M. (1972) U-Th-Pb and Rb-Sr measurements on some Apollo 14 lunar samples. Proc. 3rd Lunar Sci. Conf. 1531-1555.

von Engelhardt W., Arndt J., Stoffler D. and Schneider H. (1972) Apollo 14 regolith and fragmental rocks, their compositions and origins by impacts. Proc. 3rd Lunar Sci. Conf. 753-770.

Warner J.L. (1972) Metamophism of Apollo 14 breccias. Proc. 3rd Lunar Sci. Conf. 623-643.

Williams R.J. (1972) The lithification of metamorphism of lunar breccias. Earth Planet. Sci. Lett. 16, 250-256.

Wilshire H.G. and Jackson E.D. (1972) Petrology and stratigraphy of the Fra Mauro Formation at the Apollo 14 site. U.S. Geol. Survey Prof. Paper 785.


14307 - nasa · 2015. 5. 28. · 14307 is a clast-rich regolith breccia with glass spheres and...

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