SCOPUS 정보 검색 플랫폼

Science

Volumn 280, Issue 5369, 1998, Pages 1580-1582

Atmosphere-surface interactions on Mars: Δ 17O measurements of carbonate from ALH 84001

(3) Farquhar, James a Thiemens, Mark H a Jackson, Teresa a

a UNIVERSITY OF CALIFORNIA (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CARBON DIOXIDE; CARBONIC ACID; MINERAL; OXYGEN; OZONE; SILICATE; WATER;

MARS; MARTIAN METEORITE; OXYGEN ISOTOPE;

ARTICLE; ASTRONOMY; ATMOSPHERE; CHEMICAL COMPOSITION; MEASUREMENT; METEOROLOGY; OZONE LAYER; PHOTOCHEMISTRY; PHOTODEGRADATION; PRIORITY JOURNAL; PYROLYSIS; STRATOSPHERE;

ATMOSPHERE; CARBON DIOXIDE; CARBONATES; DEUTERIUM; EXTRATERRESTRIAL ENVIRONMENT; HEAT; HYDROGEN; MARS; METEOROIDS; OXIDATION-REDUCTION; OXYGEN ISOTOPES; OZONE; PHOTOLYSIS; WATER;

EID: 0032486194 PISSN: 00368075 EISSN: None Source Type: Journal
DOI: 10.1126/science.280.5369.1580 Document Type: Article

Times cited : (119)

References (84)

1
- 0008776371
- A. O. Nier, M. B. McElroy, Y. L. Yung, Science 194, 68 (1976); M. B. McElroy, Y. L. Yung, A. O. Nier, ibid., p. 70; A. O. Nier and M. B. McElroy, J. Geophys. Res. 82, 4341 (1977); M. K. Wallis, Planet. Space. Sci. 26, 949 (1978); Earth Planet. Sci. Lett. 93, 321 (1989); T. K. Owen, D. R. Biemann, J. E. Rushneck, D. W. Biller, Science 240, 1767 (1988); G. L. Bjoraaker, M. J. Mumma, H. P. Larson, Bull. Am. Astron. Soc. 29, 991 (1989); V. A. Krasnopolsky, M. J. Mumma, G. L. Bjoraker, D. E. Jennings, Icarus 553, 124 (1996).
- (1976) Science , vol.194 , pp. 68
- Nier, A.O.¹ McElroy, M.B.² Yung, Y.L.³

2
- 0001893957
- A. O. Nier, M. B. McElroy, Y. L. Yung, Science 194, 68 (1976); M. B. McElroy, Y. L. Yung, A. O. Nier, ibid., p. 70; A. O. Nier and M. B. McElroy, J. Geophys. Res. 82, 4341 (1977); M. K. Wallis, Planet. Space. Sci. 26, 949 (1978); Earth Planet. Sci. Lett. 93, 321 (1989); T. K. Owen, D. R. Biemann, J. E. Rushneck, D. W. Biller, Science 240, 1767 (1988); G. L. Bjoraaker, M. J. Mumma, H. P. Larson, Bull. Am. Astron. Soc. 29, 991 (1989); V. A. Krasnopolsky, M. J. Mumma, G. L. Bjoraker, D. E. Jennings, Icarus 553, 124 (1996).
- Science , pp. 70
- McElroy, M.B.¹ Yung, Y.L.² Nier, A.O.³

3
- 0008776371
- A. O. Nier, M. B. McElroy, Y. L. Yung, Science 194, 68 (1976); M. B. McElroy, Y. L. Yung, A. O. Nier, ibid., p. 70; A. O. Nier and M. B. McElroy, J. Geophys. Res. 82, 4341 (1977); M. K. Wallis, Planet. Space. Sci. 26, 949 (1978); Earth Planet. Sci. Lett. 93, 321 (1989); T. K. Owen, D. R. Biemann, J. E. Rushneck, D. W. Biller, Science 240, 1767 (1988); G. L. Bjoraaker, M. J. Mumma, H. P. Larson, Bull. Am. Astron. Soc. 29, 991 (1989); V. A. Krasnopolsky, M. J. Mumma, G. L. Bjoraker, D. E. Jennings, Icarus 553, 124 (1996).
- (1977) J. Geophys. Res. , vol.82 , pp. 4341
- Nier, A.O.¹ McElroy, M.B.²

4
- 0007507931
- A. O. Nier, M. B. McElroy, Y. L. Yung, Science 194, 68 (1976); M. B. McElroy, Y. L. Yung, A. O. Nier, ibid., p. 70; A. O. Nier and M. B. McElroy, J. Geophys. Res. 82, 4341 (1977); M. K. Wallis, Planet. Space. Sci. 26, 949 (1978); Earth Planet. Sci. Lett. 93, 321 (1989); T. K. Owen, D. R. Biemann, J. E. Rushneck, D. W. Biller, Science 240, 1767 (1988); G. L. Bjoraaker, M. J. Mumma, H. P. Larson, Bull. Am. Astron. Soc. 29, 991 (1989); V. A. Krasnopolsky, M. J. Mumma, G. L. Bjoraker, D. E. Jennings, Icarus 553, 124 (1996).
- (1978) Planet. Space. Sci. , vol.26 , pp. 949
- Wallis, M.K.¹

5
- 0024583451
- A. O. Nier, M. B. McElroy, Y. L. Yung, Science 194, 68 (1976); M. B. McElroy, Y. L. Yung, A. O. Nier, ibid., p. 70; A. O. Nier and M. B. McElroy, J. Geophys. Res. 82, 4341 (1977); M. K. Wallis, Planet. Space. Sci. 26, 949 (1978); Earth Planet. Sci. Lett. 93, 321 (1989); T. K. Owen, D. R. Biemann, J. E. Rushneck, D. W. Biller, Science 240, 1767 (1988); G. L. Bjoraaker, M. J. Mumma, H. P. Larson, Bull. Am. Astron. Soc. 29, 991 (1989); V. A. Krasnopolsky, M. J. Mumma, G. L. Bjoraker, D. E. Jennings, Icarus 553, 124 (1996).
- (1989) Earth Planet. Sci. Lett. , vol.93 , pp. 321

6
- 37049182906
- A. O. Nier, M. B. McElroy, Y. L. Yung, Science 194, 68 (1976); M. B. McElroy, Y. L. Yung, A. O. Nier, ibid., p. 70; A. O. Nier and M. B. McElroy, J. Geophys. Res. 82, 4341 (1977); M. K. Wallis, Planet. Space. Sci. 26, 949 (1978); Earth Planet. Sci. Lett. 93, 321 (1989); T. K. Owen, D. R. Biemann, J. E. Rushneck, D. W. Biller, Science 240, 1767 (1988); G. L. Bjoraaker, M. J. Mumma, H. P. Larson, Bull. Am. Astron. Soc. 29, 991 (1989); V. A. Krasnopolsky, M. J. Mumma, G. L. Bjoraker, D. E. Jennings, Icarus 553, 124 (1996).
- (1988) Science , vol.240 , pp. 1767
- Owen, T.K.¹ Biemann, D.R.² Rushneck, J.E.³ Biller, D.W.⁴

7
- 0008776371
- A. O. Nier, M. B. McElroy, Y. L. Yung, Science 194, 68 (1976); M. B. McElroy, Y. L. Yung, A. O. Nier, ibid., p. 70; A. O. Nier and M. B. McElroy, J. Geophys. Res. 82, 4341 (1977); M. K. Wallis, Planet. Space. Sci. 26, 949 (1978); Earth Planet. Sci. Lett. 93, 321 (1989); T. K. Owen, D. R. Biemann, J. E. Rushneck, D. W. Biller, Science 240, 1767 (1988); G. L. Bjoraaker, M. J. Mumma, H. P. Larson, Bull. Am. Astron. Soc. 29, 991 (1989); V. A. Krasnopolsky, M. J. Mumma, G. L. Bjoraker, D. E. Jennings, Icarus 553, 124 (1996).
- (1989) Bull. Am. Astron. Soc. , vol.29 , pp. 991
- Bjoraaker, G.L.¹ Mumma, M.J.² Larson, H.P.³

8
- 0008776371
- A. O. Nier, M. B. McElroy, Y. L. Yung, Science 194, 68 (1976); M. B. McElroy, Y. L. Yung, A. O. Nier, ibid., p. 70; A. O. Nier and M. B. McElroy, J. Geophys. Res. 82, 4341 (1977); M. K. Wallis, Planet. Space. Sci. 26, 949 (1978); Earth Planet. Sci. Lett. 93, 321 (1989); T. K. Owen, D. R. Biemann, J. E. Rushneck, D. W. Biller, Science 240, 1767 (1988); G. L. Bjoraaker, M. J. Mumma, H. P. Larson, Bull. Am. Astron. Soc. 29, 991 (1989); V. A. Krasnopolsky, M. J. Mumma, G. L. Bjoraker, D. E. Jennings, Icarus 553, 124 (1996).
- (1996) Icarus , vol.553 , pp. 124
- Krasnopolsky, V.A.¹ Mumma, M.J.² Bjoraker, G.L.³ Jennings, D.E.⁴

9
- 0024274906
- Y. L. Yung et al., Icarus 76, 146 (1988).
- (1988) Icarus , vol.76 , pp. 146
- Yung, Y.L.¹

10
- 0001623078
- R. O. Pepin, ibid. 111, 289 (1994); R. M. Haberle, D. Tyler, C. P. McKay, W. L. Davis, ibid. 109, 102 (1994); D. M. Kass and Y. L. Yung, Science 268, 697 (1995); K. S. Hutchins and B. M. Jakosky, J. Geophys. Res. 101, 14933 (1996), I. P. Wright, M. M. Grady, C. T. Pillinger, ibid. 95, 14789 (1990); B. M. Jakosky, Icarus 111, 271 (1994); T. A. Scambos and B. M. Jakosky, J. Geophys. Res. 95, 14779 (1990); C. A. Barth, in The Photochemistry of Atmospheres, J. S. Levine, Ed. (Academic Press, London, 1986), pp. 337-392.
- (1994) Icarus , vol.111 , pp. 289
- Pepin, R.O.¹

11
- 0028439688
- R. O. Pepin, ibid. 111, 289 (1994); R. M. Haberle, D. Tyler, C. P. McKay, W. L. Davis, ibid. 109, 102 (1994); D. M. Kass and Y. L. Yung, Science 268, 697 (1995); K. S. Hutchins and B. M. Jakosky, J. Geophys. Res. 101, 14933 (1996), I. P. Wright, M. M. Grady, C. T. Pillinger, ibid. 95, 14789 (1990); B. M. Jakosky, Icarus 111, 271 (1994); T. A. Scambos and B. M. Jakosky, J. Geophys. Res. 95, 14779 (1990); C. A. Barth, in The Photochemistry of Atmospheres, J. S. Levine, Ed. (Academic Press, London, 1986), pp. 337-392.
- (1994) Icarus , vol.109 , pp. 102
- Haberle, R.M.¹ Tyler, D.² McKay, C.P.³ Davis, W.L.⁴

12
- 0029636491
- R. O. Pepin, ibid. 111, 289 (1994); R. M. Haberle, D. Tyler, C. P. McKay, W. L. Davis, ibid. 109, 102 (1994); D. M. Kass and Y. L. Yung, Science 268, 697 (1995); K. S. Hutchins and B. M. Jakosky, J. Geophys. Res. 101, 14933 (1996), I. P. Wright, M. M. Grady, C. T. Pillinger, ibid. 95, 14789 (1990); B. M. Jakosky, Icarus 111, 271 (1994); T. A. Scambos and B. M. Jakosky, J. Geophys. Res. 95, 14779 (1990); C. A. Barth, in The Photochemistry of Atmospheres, J. S. Levine, Ed. (Academic Press, London, 1986), pp. 337-392.
- (1995) Science , vol.268 , pp. 697
- Kass, D.M.¹ Yung, Y.L.²

13
- 0030454257
- R. O. Pepin, ibid. 111, 289 (1994); R. M. Haberle, D. Tyler, C. P. McKay, W. L. Davis, ibid. 109, 102 (1994); D. M. Kass and Y. L. Yung, Science 268, 697 (1995); K. S. Hutchins and B. M. Jakosky, J. Geophys. Res. 101, 14933 (1996), I. P. Wright, M. M. Grady, C. T. Pillinger, ibid. 95, 14789 (1990); B. M. Jakosky, Icarus 111, 271 (1994); T. A. Scambos and B. M. Jakosky, J. Geophys. Res. 95, 14779 (1990); C. A. Barth, in The Photochemistry of Atmospheres, J. S. Levine, Ed. (Academic Press, London, 1986), pp. 337-392.
- (1996) J. Geophys. Res. , vol.101 , pp. 14933
- Hutchins, K.S.¹ Jakosky, B.M.²

14
- 0001623078
- R. O. Pepin, ibid. 111, 289 (1994); R. M. Haberle, D. Tyler, C. P. McKay, W. L. Davis, ibid. 109, 102 (1994); D. M. Kass and Y. L. Yung, Science 268, 697 (1995); K. S. Hutchins and B. M. Jakosky, J. Geophys. Res. 101, 14933 (1996), I. P. Wright, M. M. Grady, C. T. Pillinger, ibid. 95, 14789 (1990); B. M. Jakosky, Icarus 111, 271 (1994); T. A. Scambos and B. M. Jakosky, J. Geophys. Res. 95, 14779 (1990); C. A. Barth, in The Photochemistry of Atmospheres, J. S. Levine, Ed. (Academic Press, London, 1986), pp. 337-392.
- (1990) J. Geophys. Res. , vol.95 , pp. 14789
- Wright, I.P.¹ Grady, M.M.² Pillinger, C.T.³

15
- 0000665527
- R. O. Pepin, ibid. 111, 289 (1994); R. M. Haberle, D. Tyler, C. P. McKay, W. L. Davis, ibid. 109, 102 (1994); D. M. Kass and Y. L. Yung, Science 268, 697 (1995); K. S. Hutchins and B. M. Jakosky, J. Geophys. Res. 101, 14933 (1996), I. P. Wright, M. M. Grady, C. T. Pillinger, ibid. 95, 14789 (1990); B. M. Jakosky, Icarus 111, 271 (1994); T. A. Scambos and B. M. Jakosky, J. Geophys. Res. 95, 14779 (1990); C. A. Barth, in The Photochemistry of Atmospheres, J. S. Levine, Ed. (Academic Press, London, 1986), pp. 337-392.
- (1994) Icarus , vol.111 , pp. 271
- Jakosky, B.M.¹

16
- 0025628149
- R. O. Pepin, ibid. 111, 289 (1994); R. M. Haberle, D. Tyler, C. P. McKay, W. L. Davis, ibid. 109, 102 (1994); D. M. Kass and Y. L. Yung, Science 268, 697 (1995); K. S. Hutchins and B. M. Jakosky, J. Geophys. Res. 101, 14933 (1996), I. P. Wright, M. M. Grady, C. T. Pillinger, ibid. 95, 14789 (1990); B. M. Jakosky, Icarus 111, 271 (1994); T. A. Scambos and B. M. Jakosky, J. Geophys. Res. 95, 14779 (1990); C. A. Barth, in The Photochemistry of Atmospheres, J. S. Levine, Ed. (Academic Press, London, 1986), pp. 337-392.
- (1990) J. Geophys. Res. , vol.95 , pp. 14779
- Scambos, T.A.¹ Jakosky, B.M.²

17
- 0001623078
- J. S. Levine, Ed. Academic Press, London
- R. O. Pepin, ibid. 111, 289 (1994); R. M. Haberle, D. Tyler, C. P. McKay, W. L. Davis, ibid. 109, 102 (1994); D. M. Kass and Y. L. Yung, Science 268, 697 (1995); K. S. Hutchins and B. M. Jakosky, J. Geophys. Res. 101, 14933 (1996), I. P. Wright, M. M. Grady, C. T. Pillinger, ibid. 95, 14789 (1990); B. M. Jakosky, Icarus 111, 271 (1994); T. A. Scambos and B. M. Jakosky, J. Geophys. Res. 95, 14779 (1990); C. A. Barth, in The Photochemistry of Atmospheres, J. S. Levine, Ed. (Academic Press, London, 1986), pp. 337-392.
- (1986) The Photochemistry of Atmospheres , pp. 337-392
- Barth, C.A.¹

18
- 0028505157
- H. Nair, M. Allen, A. D. Anbar, Y. L. Yung, R. T. Clancy, Icarus 111, 124 (1994).
- (1994) Icarus , vol.111 , pp. 124
- Nair, H.¹ Allen, M.² Anbar, A.D.³ Yung, Y.L.⁴ Clancy, R.T.⁵

19
- 0027800498
- B. M. Jakosky, Geophys. Res. Lett. 20, 1591 (1993); Icarus 94, 14 (1991).
- (1993) Geophys. Res. Lett. , vol.20 , pp. 1591
- Jakosky, B.M.¹

20
- 0027800498
- B. M. Jakosky, Geophys. Res. Lett. 20, 1591 (1993); Icarus 94, 14 (1991).
- (1991) Icarus , vol.94 , pp. 14

21
- 0029526619
- M. H. Thiemens, T. Jackson, E. C. Zipf, P. W. Erdman, C. van Egmond, Science 270, 969 (1995).
- (1995) Science , vol.270 , pp. 969
- Thiemens, M.H.¹ Jackson, T.² Zipf, E.C.³ Erdman, P.W.⁴ Van Egmond, C.⁵

22
- 0026289716
- V. R. Baker et al., Nature 352, 589 (1991), V. C. Gulick, D. Tyler, C. P. McKay, R. M. Haberle, Icarus 130, 68 (1997).
- (1991) Nature , vol.352 , pp. 589
- Baker, V.R.¹

23
- 0031281603
- V. R. Baker et al., Nature 352, 589 (1991), V. C. Gulick, D. Tyler, C. P. McKay, R. M. Haberle, Icarus 130, 68 (1997).
- (1997) Icarus , vol.130 , pp. 68
- Gulick, V.C.¹ Tyler, D.² McKay, C.P.³ Haberle, R.M.⁴

24
- 0000786018
- M. H. Carr, Icarus 68, 187 (1986); V. C. Gulick and V. R. Baker, J. Geophys. Res. 95, 14325 (1990); J. B. Pollack, J. F. Kasting, S. M. Richardson, K. Poliakoff, Icarus 71, 203 (1987); C. Sagan and C. Chyba, Science 276, 1217 (1997); F. Forget and R. T. Pierrehumbert, ibid. 278, 1273 (1997).
- (1986) Icarus , vol.68 , pp. 187
- Carr, M.H.¹

25
- 0025660907
- M. H. Carr, Icarus 68, 187 (1986); V. C. Gulick and V. R. Baker, J. Geophys. Res. 95, 14325 (1990); J. B. Pollack, J. F. Kasting, S. M. Richardson, K. Poliakoff, Icarus 71, 203 (1987); C. Sagan and C. Chyba, Science 276, 1217 (1997); F. Forget and R. T. Pierrehumbert, ibid. 278, 1273 (1997).
- (1990) J. Geophys. Res. , vol.95 , pp. 14325
- Gulick, V.C.¹ Baker, V.R.²

26
- 0023641562
- M. H. Carr, Icarus 68, 187 (1986); V. C. Gulick and V. R. Baker, J. Geophys. Res. 95, 14325 (1990); J. B. Pollack, J. F. Kasting, S. M. Richardson, K. Poliakoff, Icarus 71, 203 (1987); C. Sagan and C. Chyba, Science 276, 1217 (1997); F. Forget and R. T. Pierrehumbert, ibid. 278, 1273 (1997).
- (1987) Icarus , vol.71 , pp. 203
- Pollack, J.B.¹ Kasting, J.F.² Richardson, S.M.³ Poliakoff, K.⁴

27
- 0031001793
- M. H. Carr, Icarus 68, 187 (1986); V. C. Gulick and V. R. Baker, J. Geophys. Res. 95, 14325 (1990); J. B. Pollack, J. F. Kasting, S. M. Richardson, K. Poliakoff, Icarus 71, 203 (1987); C. Sagan and C. Chyba, Science 276, 1217 (1997); F. Forget and R. T. Pierrehumbert, ibid. 278, 1273 (1997).
- (1997) Science , vol.276 , pp. 1217
- Sagan, C.¹ Chyba, C.²

28
- 0030657714
- M. H. Carr, Icarus 68, 187 (1986); V. C. Gulick and V. R. Baker, J. Geophys. Res. 95, 14325 (1990); J. B. Pollack, J. F. Kasting, S. M. Richardson, K. Poliakoff, Icarus 71, 203 (1987); C. Sagan and C. Chyba, Science 276, 1217 (1997); F. Forget and R. T. Pierrehumbert, ibid. 278, 1273 (1997).
- (1997) Science , vol.278 , pp. 1273
- Forget, F.¹ Pierrehumbert, R.T.²

29
- 2642633395
- note
- The martian (SNC) meteorites are a group of meteorites that are inferred to derive their origin from Mars (10). Members of this group have similar oxygen isotope compositions (11, 12).

30
- 0001393059
- C. A. Wood and L. D. Ashwal, Proc. Lunar Planet. Sci. Conf. 12, 1359 (1981); H. Y. McSween, Geology 12, 3 (1984); D. D. Bogard and P. Johnson, Science 221, 651, (1983); R. H. Becker and R. O. Pepin, Earth Planet. Sci. Lett. 69, 225 (1984); R. C. Wiens, R. H. Becker, R. O. Pepin, Earth Planet. Sci. Lett. 77, 149 (1986) J. F. Kerridge, Lunar Planet. Sci. XIX, 599 (1988); K. Marti, J. S. Kim, A. N. Thakur, T. J. McCoy, K. Kiel, Science 267, 1981 (1995).
- (1981) Proc. Lunar Planet. Sci. Conf. , vol.12 , pp. 1359
- Wood, C.A.¹ Ashwal, L.D.²

31
- 85047674789
- C. A. Wood and L. D. Ashwal, Proc. Lunar Planet. Sci. Conf. 12, 1359 (1981); H. Y. McSween, Geology 12, 3 (1984); D. D. Bogard and P. Johnson, Science 221, 651, (1983); R. H. Becker and R. O. Pepin, Earth Planet. Sci. Lett. 69, 225 (1984); R. C. Wiens, R. H. Becker, R. O. Pepin, Earth Planet. Sci. Lett. 77, 149 (1986) J. F. Kerridge, Lunar Planet. Sci. XIX, 599 (1988); K. Marti, J. S. Kim, A. N. Thakur, T. J. McCoy, K. Kiel, Science 267, 1981 (1995).
- (1984) Geology , vol.12 , pp. 3
- McSween, H.Y.¹

32
- 0020866116
- C. A. Wood and L. D. Ashwal, Proc. Lunar Planet. Sci. Conf. 12, 1359 (1981); H. Y. McSween, Geology 12, 3 (1984); D. D. Bogard and P. Johnson, Science 221, 651, (1983); R. H. Becker and R. O. Pepin, Earth Planet. Sci. Lett. 69, 225 (1984); R. C. Wiens, R. H. Becker, R. O. Pepin, Earth Planet. Sci. Lett. 77, 149 (1986) J. F. Kerridge, Lunar Planet. Sci. XIX, 599 (1988); K. Marti, J. S. Kim, A. N. Thakur, T. J. McCoy, K. Kiel, Science 267, 1981 (1995).
- (1983) Science , vol.221 , pp. 651
- Bogard, D.D.¹ Johnson, P.²

33
- 0021334324
- C. A. Wood and L. D. Ashwal, Proc. Lunar Planet. Sci. Conf. 12, 1359 (1981); H. Y. McSween, Geology 12, 3 (1984); D. D. Bogard and P. Johnson, Science 221, 651, (1983); R. H. Becker and R. O. Pepin, Earth Planet. Sci. Lett. 69, 225 (1984); R. C. Wiens, R. H. Becker, R. O. Pepin, Earth Planet. Sci. Lett. 77, 149 (1986) J. F. Kerridge, Lunar Planet. Sci. XIX, 599 (1988); K. Marti, J. S. Kim, A. N. Thakur, T. J. McCoy, K. Kiel, Science 267, 1981 (1995).
- (1984) Earth Planet. Sci. Lett. , vol.69 , pp. 225
- Becker, R.H.¹ Pepin, R.O.²

34
- 0022555061
- C. A. Wood and L. D. Ashwal, Proc. Lunar Planet. Sci. Conf. 12, 1359 (1981); H. Y. McSween, Geology 12, 3 (1984); D. D. Bogard and P. Johnson, Science 221, 651, (1983); R. H. Becker and R. O. Pepin, Earth Planet. Sci. Lett. 69, 225 (1984); R. C. Wiens, R. H. Becker, R. O. Pepin, Earth Planet. Sci. Lett. 77, 149 (1986) J. F. Kerridge, Lunar Planet. Sci. XIX, 599 (1988); K. Marti, J. S. Kim, A. N. Thakur, T. J. McCoy, K. Kiel, Science 267, 1981 (1995).
- (1986) Earth Planet. Sci. Lett. , vol.77 , pp. 149
- Wiens, R.C.¹ Becker, R.H.² Pepin, R.O.³

35
- 0040129299
- C. A. Wood and L. D. Ashwal, Proc. Lunar Planet. Sci. Conf. 12, 1359 (1981); H. Y. McSween, Geology 12, 3 (1984); D. D. Bogard and P. Johnson, Science 221, 651, (1983); R. H. Becker and R. O. Pepin, Earth Planet. Sci. Lett. 69, 225 (1984); R. C. Wiens, R. H. Becker, R. O. Pepin, Earth Planet. Sci. Lett. 77, 149 (1986) J. F. Kerridge, Lunar Planet. Sci. XIX, 599 (1988); K. Marti, J. S. Kim, A. N. Thakur, T. J. McCoy, K. Kiel, Science 267, 1981 (1995).
- (1988) Lunar Planet. Sci. , vol.19 , pp. 599
- Kerridge, J.F.¹

36
- 0028975522
- C. A. Wood and L. D. Ashwal, Proc. Lunar Planet. Sci. Conf. 12, 1359 (1981); H. Y. McSween, Geology 12, 3 (1984); D. D. Bogard and P. Johnson, Science 221, 651, (1983); R. H. Becker and R. O. Pepin, Earth Planet. Sci. Lett. 69, 225 (1984); R. C. Wiens, R. H. Becker, R. O. Pepin, Earth Planet. Sci. Lett. 77, 149 (1986) J. F. Kerridge, Lunar Planet. Sci. XIX, 599 (1988); K. Marti, J. S. Kim, A. N. Thakur, T. J. McCoy, K. Kiel, Science 267, 1981 (1995).
- (1995) Science , vol.267 , pp. 1981
- Marti, K.¹ Kim, J.S.² Thakur, A.N.³ McCoy, T.J.⁴ Kiel, K.⁵

37
- 0020541148
- R. N. Clayton and T. K. Mayeda, Earth. Planet. Sci. Lett. 62, 1 (1983).
- (1983) Earth. Planet. Sci. Lett. , vol.62 , pp. 1
- Clayton, R.N.¹ Mayeda, T.K.²

38
- 0030482461
- _, Geochim. Cosmochim. Acta 60, 1999 (1996); I. A. Franchi, A. S. Sexton, I. P. Wright, C. T. Pillinger, Lunar Planet. Sci. Conf. XXVIII, 379 (1997).
- (1996) Geochim. Cosmochim. Acta , vol.60 , pp. 1999

39
- 0030482461
- _, Geochim. Cosmochim. Acta 60, 1999 (1996); I. A. Franchi, A. S. Sexton, I. P. Wright, C. T. Pillinger, Lunar Planet. Sci. Conf. XXVIII, 379 (1997).
- (1997) Lunar Planet. Sci. Conf. , vol.28 , pp. 379
- Franchi, I.A.¹ Sexton, A.S.² Wright, I.P.³ Pillinger, C.T.⁴

40
- 0028468978
- L. L. Watson, I. D. Hutcheon, S. Epstein, E. M. Stolper, Science 265, 86 (1994); L. L. Leshin, Lunar Planet. Sci. Conf. XXIX, 1468 (1998).
- (1994) Science , vol.265 , pp. 86
- Watson, L.L.¹ Hutcheon, I.D.² Epstein, S.³ Stolper, E.M.⁴

41
- 0028468978
- L. L. Watson, I. D. Hutcheon, S. Epstein, E. M. Stolper, Science 265, 86 (1994); L. L. Leshin, Lunar Planet. Sci. Conf. XXIX, 1468 (1998).
- (1998) Lunar Planet. Sci. Conf. , vol.29 , pp. 1468
- Leshin, L.L.¹

42
- 0030456549
- L. A. Leshin, S. Epstein, E. M. Stolper, Geochim. Cosmochim. Acta 60, 2635 (1996).
- (1996) Geochim. Cosmochim. Acta , vol.60 , pp. 2635
- Leshin, L.A.¹ Epstein, S.² Stolper, E.M.³

43
- 0022180105
- R. H. Carr, M. M. Grady, I. P. Wright, C. T. Pillinger, Nature 314, 248 (1985); I. P. Wright, M. M. Grady, C. T. Pillinger, J. Geophys. Res. 95, 14789 (1990).
- (1985) Nature , vol.314 , pp. 248
- Carr, R.H.¹ Grady, M.M.² Wright, I.P.³ Pillinger, C.T.⁴

44
- 0022180105
- R. H. Carr, M. M. Grady, I. P. Wright, C. T. Pillinger, Nature 314, 248 (1985); I. P. Wright, M. M. Grady, C. T. Pillinger, J. Geophys. Res. 95, 14789 (1990).
- (1990) J. Geophys. Res. , vol.95 , pp. 14789
- Wright, I.P.¹ Grady, M.M.² Pillinger, C.T.³

45
- 0000438083
- F. P. Fanale and W. A. Cannon, Nature 230, 502 (1971); C. B. Farmer, D. W. Davies, A. L. Holland, D. D. LaPorte, P. E. Doms, J. Geophys. Res. 82, 4225 (1977); B. M. Jakosky and C. B. Farmer, ibid. 87, 2999 (1982); B. M. Jakosky, A. P. Zent, R. W. Zurek, Icarus 130, 87 (1997); R. D. Forsythe and C. R. Blackwelder, Lunar Planet. Sci. Conf. XXIX, 1410 (1998).
- (1971) Nature , vol.230 , pp. 502
- Fanale, F.P.¹ Cannon, W.A.²

46
- 0000438083
- F. P. Fanale and W. A. Cannon, Nature 230, 502 (1971); C. B. Farmer, D. W. Davies, A. L. Holland, D. D. LaPorte, P. E. Doms, J. Geophys. Res. 82, 4225 (1977); B. M. Jakosky and C. B. Farmer, ibid. 87, 2999 (1982); B. M. Jakosky, A. P. Zent, R. W. Zurek, Icarus 130, 87 (1997); R. D. Forsythe and C. R. Blackwelder, Lunar Planet. Sci. Conf. XXIX, 1410 (1998).
- (1977) J. Geophys. Res. , vol.82 , pp. 4225
- Farmer, C.B.¹ Davies, D.W.² Holland, A.L.³ LaPorte, D.D.⁴ Doms, P.E.⁵

47
- 0000438083
- F. P. Fanale and W. A. Cannon, Nature 230, 502 (1971); C. B. Farmer, D. W. Davies, A. L. Holland, D. D. LaPorte, P. E. Doms, J. Geophys. Res. 82, 4225 (1977); B. M. Jakosky and C. B. Farmer, ibid. 87, 2999 (1982); B. M. Jakosky, A. P. Zent, R. W. Zurek, Icarus 130, 87 (1997); R. D. Forsythe and C. R. Blackwelder, Lunar Planet. Sci. Conf. XXIX, 1410 (1998).
- (1982) J. Geophys. Res. , vol.87 , pp. 2999
- Jakosky, B.M.¹ Farmer, C.B.²

48
- 0031281922
- F. P. Fanale and W. A. Cannon, Nature 230, 502 (1971); C. B. Farmer, D. W. Davies, A. L. Holland, D. D. LaPorte, P. E. Doms, J. Geophys. Res. 82, 4225 (1977); B. M. Jakosky and C. B. Farmer, ibid. 87, 2999 (1982); B. M. Jakosky, A. P. Zent, R. W. Zurek, Icarus 130, 87 (1997); R. D. Forsythe and C. R. Blackwelder, Lunar Planet. Sci. Conf. XXIX, 1410 (1998).
- (1997) Icarus , vol.130 , pp. 87
- Jakosky, B.M.¹ Zent, A.P.² Zurek, R.W.³

49
- 0000438083
- F. P. Fanale and W. A. Cannon, Nature 230, 502 (1971); C. B. Farmer, D. W. Davies, A. L. Holland, D. D. LaPorte, P. E. Doms, J. Geophys. Res. 82, 4225 (1977); B. M. Jakosky and C. B. Farmer, ibid. 87, 2999 (1982); B. M. Jakosky, A. P. Zent, R. W. Zurek, Icarus 130, 87 (1997); R. D. Forsythe and C. R. Blackwelder, Lunar Planet. Sci. Conf. XXIX, 1410 (1998).
- (1998) Lunar Planet. Sci. Conf. , vol.29 , pp. 1410
- Forsythe, R.D.¹ Blackwelder, C.R.²

50
- 0000318335
- F. P. Fanale and W. A. Cannon, J. Geophys. Res. 79, 3397 (1974).
- (1974) J. Geophys. Res. , vol.79 , pp. 3397
- Fanale, F.P.¹ Cannon, W.A.²

51
- 2642622230
- note
- 2 for the acidification and gas purification steps and less than 0.2 μmol for the fluorination procedure (determined from the final oxygen yield).

52
- 0001175714
- J. M. McCrea, J. Chem. Phys. 18, 849 (1950).
- (1950) J. Chem. Phys. , vol.18 , pp. 849
- McCrea, J.M.¹

53
- 25344454551
- R. N. Clayton and T. K. Mayeda, Geochim. Cosmochim. Acta 27, 43 (1963); S. K. Bhattacharya and M. H. Thiemens, Z. Naturforsch. 44a, 435 (1989).
- (1963) Geochim. Cosmochim. Acta , vol.27 , pp. 43
- Clayton, R.N.¹ Mayeda, T.K.²

54
- 84886285201
- R. N. Clayton and T. K. Mayeda, Geochim. Cosmochim. Acta 27, 43 (1963); S. K. Bhattacharya and M. H. Thiemens, Z. Naturforsch. 44a, 435 (1989).
- (1989) Z. Naturforsch. , vol.44 A , pp. 435
- Bhattacharya, S.K.¹ Thiemens, M.H.²

55
- 0022926710
- J. Rosenbaum and S. M. F. Sheppard, Geochim. Cosmochim. Acta 50, 1147 (1986).
- (1986) Geochim. Cosmochim. Acta , vol.50 , pp. 1147
- Rosenbaum, J.¹ Sheppard, S.M.F.²

56
- 0020645140
- T. B. Coplen et al., Nature 302, 236 (1983).
- (1983) Nature , vol.302 , pp. 236
- Coplen, T.B.¹

57
- 2642634394
- note
- 0.52 is the magnitude of the difference of a measured datum relative to the terrestrial fractionation line (11, 12).

58
- 0030620644
- J. W. Valley et al., Science 275, 1633 (1997).
- (1997) Science , vol.275 , pp. 1633
- Valley, J.W.¹

59
- 0028669862
- C. S. Romanek et al., Nature 372, 655 (1994).; L. A. Leshin, K. D. McKeegan, R. P. Harvey, Lunar Planet. Sci. Conf. XXVIII, 805 (1997).
- (1994) Nature , vol.372 , pp. 655
- Romanek, C.S.¹

60
- 0028669862
- C. S. Romanek et al., Nature 372, 655 (1994).; L. A. Leshin, K. D. McKeegan, R. P. Harvey, Lunar Planet. Sci. Conf. XXVIII, 805 (1997).
- (1997) Lunar Planet. Sci. Conf. , vol.28 , pp. 805
- Leshin, L.A.¹ McKeegan, K.D.² Harvey, R.P.³

61
- 0001235829
- A. J. T. Jull, C. J. Eastoe, G. F. Herzog, Meteoritics 30, 311 (1995).
- (1995) Meteoritics , vol.30 , pp. 311
- Jull, A.J.T.¹ Eastoe, C.J.² Herzog, G.F.³

62
- 0026614945
- H. R. Karrlson, R. N. Clayton, E. K. Gibson Jr., T. K. Mayeda, Science 255, 1409 (1992).
- (1992) Science , vol.255 , pp. 1409
- Karrlson, H.R.¹ Clayton, R.N.² Gibson Jr., E.K.³ Mayeda, T.K.⁴

63
- 0029662503
- R. P. Harvey and H. Y. McSween Jr., Nature 382, 49 (1996).
- (1996) Nature , vol.382 , pp. 49
- Harvey, R.P.¹ McSween Jr., H.Y.²

64
- 0016986197
- K. Muehlenbachs and R. N. Clayton, J. Geophys. Res. 81, 4365 (1976); H. Holland, The Chemical Evolution of the Atmosphere and Oceans (Princeton Univ. Press, Princeton, NJ, 1984); R. T. Gregory, in Stable Isotope Geochemistry: A Tribute to Samuel Epstein, H. P. Taylor, J. R. O'Neil, I. R. Kaplan, Eds. (Geochemical Society Special Publication 3, San Antonio, TX, 1992), pp. 65-76.
- (1976) J. Geophys. Res. , vol.81 , pp. 4365
- Muehlenbachs, K.¹ Clayton, R.N.²

65
- 0003504076
- Princeton Univ. Press, Princeton, NJ
- K. Muehlenbachs and R. N. Clayton, J. Geophys. Res. 81, 4365 (1976); H. Holland, The Chemical Evolution of the Atmosphere and Oceans (Princeton Univ. Press, Princeton, NJ, 1984); R. T. Gregory, in Stable Isotope Geochemistry: A Tribute to Samuel Epstein, H. P. Taylor, J. R. O'Neil, I. R. Kaplan, Eds. (Geochemical Society Special Publication 3, San Antonio, TX, 1992), pp. 65-76.
- (1984) The Chemical Evolution of the Atmosphere and Oceans
- Holland, H.¹

66
- 0002353273
- H. P. Taylor, J. R. O'Neil, I. R. Kaplan, Eds. Geochemical Society Special Publication 3, San Antonio, TX
- K. Muehlenbachs and R. N. Clayton, J. Geophys. Res. 81, 4365 (1976); H. Holland, The Chemical Evolution of the Atmosphere and Oceans (Princeton Univ. Press, Princeton, NJ, 1984); R. T. Gregory, in Stable Isotope Geochemistry: A Tribute to Samuel Epstein, H. P. Taylor, J. R. O'Neil, I. R. Kaplan, Eds. (Geochemical Society Special Publication 3, San Antonio, TX, 1992), pp. 65-76.
- (1992) Stable Isotope Geochemistry: A Tribute to Samuel Epstein , pp. 65-76
- Gregory, R.T.¹

67
- 4544381480
- P. E. Geissler, R. B. Singer, G. Komatsu, S. Murchie, J. Mustard, Icarus 106, 380 (1993).
- (1993) Icarus , vol.106 , pp. 380
- Geissler, P.E.¹ Singer, R.B.² Komatsu, G.³ Murchie, S.⁴ Mustard, J.⁵

68
- 0022876143
- J. W. Valley, H. P. Taylor, J. R. O'Neil, Eds. MSA Reviews in Mineralogy, BookCrafters, Chelsea, MI
- R. E. Criss and H. P. Taylor, in Stable Isotopes in High Temperature Geological Processes, J. W. Valley, H. P. Taylor, J. R. O'Neil, Eds. (MSA Reviews in Mineralogy, BookCrafters, Chelsea, MI, 1986), vol. 16, pp. 373-424; B. M. Jakosky and J. H. Jones, Nature 370, 328 (1994); Rev. Geophys. 35, 1 (1997).
- (1986) Stable Isotopes in High Temperature Geological Processes , vol.16 , pp. 373-424
- Criss, R.E.¹ Taylor, H.P.²

69
- 0027959097
- R. E. Criss and H. P. Taylor, in Stable Isotopes in High Temperature Geological Processes, J. W. Valley, H. P. Taylor, J. R. O'Neil, Eds. (MSA Reviews in Mineralogy, BookCrafters, Chelsea, MI, 1986), vol. 16, pp. 373-424; B. M. Jakosky and J. H. Jones, Nature 370, 328 (1994); Rev. Geophys. 35, 1 (1997).
- (1994) Nature , vol.370 , pp. 328
- Jakosky, B.M.¹ Jones, J.H.²

70
- 0022920603
- R. E. Criss and H. P. Taylor, in Stable Isotopes in High Temperature Geological Processes, J. W. Valley, H. P. Taylor, J. R. O'Neil, Eds. (MSA Reviews in Mineralogy, BookCrafters, Chelsea, MI, 1986), vol. 16, pp. 373-424; B. M. Jakosky and J. H. Jones, Nature 370, 328 (1994); Rev. Geophys. 35, 1 (1997).
- (1997) Rev. Geophys. , vol.35 , pp. 1

71
- 0028975519
- T. M. Donahue, Nature 374, 432 (1995); M. T. Mellon and B. M. Jakosky, J. Geophys. Res. 100, 11781 (1995); J. Laskar and P. Robutel, Nature 361, 608 (1993); J. Tourna and J. Wisdom, Science 259, 1294 (1993); M. H. Carr, Icarus 87, 210 (1990); B. M. Jakosky, J. Geophys. Res. 95, 1475 (1990); _, B. G. Henderson, M. T. Mellon, Icarus 102, 286 (1993); J. Geophys. Res. 100, 1579 (1995).
- (1995) Nature , vol.374 , pp. 432
- Donahue, T.M.¹

72
- 0029519095
- T. M. Donahue, Nature 374, 432 (1995); M. T. Mellon and B. M. Jakosky, J. Geophys. Res. 100, 11781 (1995); J. Laskar and P. Robutel, Nature 361, 608 (1993); J. Tourna and J. Wisdom, Science 259, 1294 (1993); M. H. Carr, Icarus 87, 210 (1990); B. M. Jakosky, J. Geophys. Res. 95, 1475 (1990); _, B. G. Henderson, M. T. Mellon, Icarus 102, 286 (1993); J. Geophys. Res. 100, 1579 (1995).
- (1995) J. Geophys. Res. , vol.100 , pp. 11781
- Mellon, M.T.¹ Jakosky, B.M.²

73
- 12044250041
- T. M. Donahue, Nature 374, 432 (1995); M. T. Mellon and B. M. Jakosky, J. Geophys. Res. 100, 11781 (1995); J. Laskar and P. Robutel, Nature 361, 608 (1993); J. Tourna and J. Wisdom, Science 259, 1294 (1993); M. H. Carr, Icarus 87, 210 (1990); B. M. Jakosky, J. Geophys. Res. 95, 1475 (1990); _, B. G. Henderson, M. T. Mellon, Icarus 102, 286 (1993); J. Geophys. Res. 100, 1579 (1995).
- (1993) Nature , vol.361 , pp. 608
- Laskar, J.¹ Robutel, P.²

74
- 12044249860
- T. M. Donahue, Nature 374, 432 (1995); M. T. Mellon and B. M. Jakosky, J. Geophys. Res. 100, 11781 (1995); J. Laskar and P. Robutel, Nature 361, 608 (1993); J. Tourna and J. Wisdom, Science 259, 1294 (1993); M. H. Carr, Icarus 87, 210 (1990); B. M. Jakosky, J. Geophys. Res. 95, 1475 (1990); _, B. G. Henderson, M. T. Mellon, Icarus 102, 286 (1993); J. Geophys. Res. 100, 1579 (1995).
- (1993) Science , vol.259 , pp. 1294
- Tourna, J.¹ Wisdom, J.²

75
- 0000749029
- T. M. Donahue, Nature 374, 432 (1995); M. T. Mellon and B. M. Jakosky, J. Geophys. Res. 100, 11781 (1995); J. Laskar and P. Robutel, Nature 361, 608 (1993); J. Tourna and J. Wisdom, Science 259, 1294 (1993); M. H. Carr, Icarus 87, 210 (1990); B. M. Jakosky, J. Geophys. Res. 95, 1475 (1990); _, B. G. Henderson, M. T. Mellon, Icarus 102, 286 (1993); J. Geophys. Res. 100, 1579 (1995).
- (1990) Icarus , vol.87 , pp. 210
- Carr, M.H.¹

76
- 0028975519
- T. M. Donahue, Nature 374, 432 (1995); M. T. Mellon and B. M. Jakosky, J. Geophys. Res. 100, 11781 (1995); J. Laskar and P. Robutel, Nature 361, 608 (1993); J. Tourna and J. Wisdom, Science 259, 1294 (1993); M. H. Carr, Icarus 87, 210 (1990); B. M. Jakosky, J. Geophys. Res. 95, 1475 (1990); _, B. G. Henderson, M. T. Mellon, Icarus 102, 286 (1993); J. Geophys. Res. 100, 1579 (1995).
- (1990) J. Geophys. Res. , vol.95 , pp. 1475
- Jakosky, B.M.¹

77
- 2642598650
- T. M. Donahue, Nature 374, 432 (1995); M. T. Mellon and B. M. Jakosky, J. Geophys. Res. 100, 11781 (1995); J. Laskar and P. Robutel, Nature 361, 608 (1993); J. Tourna and J. Wisdom, Science 259, 1294 (1993); M. H. Carr, Icarus 87, 210 (1990); B. M. Jakosky, J. Geophys. Res. 95, 1475 (1990); _, B. G. Henderson, M. T. Mellon, Icarus 102, 286 (1993); J. Geophys. Res. 100, 1579 (1995).
- (1993) Icarus , vol.102 , pp. 286
- Henderson, B.G.¹ Mellon, M.T.²

78
- 0028808986
- T. M. Donahue, Nature 374, 432 (1995); M. T. Mellon and B. M. Jakosky, J. Geophys. Res. 100, 11781 (1995); J. Laskar and P. Robutel, Nature 361, 608 (1993); J. Tourna and J. Wisdom, Science 259, 1294 (1993); M. H. Carr, Icarus 87, 210 (1990); B. M. Jakosky, J. Geophys. Res. 95, 1475 (1990); _, B. G. Henderson, M. T. Mellon, Icarus 102, 286 (1993); J. Geophys. Res. 100, 1579 (1995).
- (1995) J. Geophys. Res. , vol.100 , pp. 1579

79
- 84989559276
- M. H. Thiemens, T. Jackson, K. Mauersberger, B. Schueler, J. Morton, Geophys. Res. Lett 18, 669 (1991); M. H. Thiemens and T. L. Jackson, ibid. 22, 255 (1995); J. C. Johnston and M. H. Thiemens, J. Geophys. Res. 102, 25395 (1997); K. Mauersberger, Geophys. Res. Lett. 14, 80 (1987); S. S Cliff and M. H. Thiemens, Science 278, 1774 (1997).
- (1991) Geophys. Res. Lett , vol.18 , pp. 669
- Thiemens, M.H.¹ Jackson, T.² Mauersberger, K.³ Schueler, B.⁴ Morton, J.⁵

80
- 0028831440
- M. H. Thiemens, T. Jackson, K. Mauersberger, B. Schueler, J. Morton, Geophys. Res. Lett 18, 669 (1991); M. H. Thiemens and T. L. Jackson, ibid. 22, 255 (1995); J. C. Johnston and M. H. Thiemens, J. Geophys. Res. 102, 25395 (1997); K. Mauersberger, Geophys. Res. Lett. 14, 80 (1987); S. S Cliff and M. H. Thiemens, Science 278, 1774 (1997).
- (1995) Geophys. Res. Lett , vol.22 , pp. 255
- Thiemens, M.H.¹ Jackson, T.L.²

81
- 0031426472
- M. H. Thiemens, T. Jackson, K. Mauersberger, B. Schueler, J. Morton, Geophys. Res. Lett 18, 669 (1991); M. H. Thiemens and T. L. Jackson, ibid. 22, 255 (1995); J. C. Johnston and M. H. Thiemens, J. Geophys. Res. 102, 25395 (1997); K. Mauersberger, Geophys. Res. Lett. 14, 80 (1987); S. S Cliff and M. H. Thiemens, Science 278, 1774 (1997).
- (1997) J. Geophys. Res. , vol.102 , pp. 25395
- Johnston, J.C.¹ Thiemens, M.H.²

82
- 0023524146
- M. H. Thiemens, T. Jackson, K. Mauersberger, B. Schueler, J. Morton, Geophys. Res. Lett 18, 669 (1991); M. H. Thiemens and T. L. Jackson, ibid. 22, 255 (1995); J. C. Johnston and M. H. Thiemens, J. Geophys. Res. 102, 25395 (1997); K. Mauersberger, Geophys. Res. Lett. 14, 80 (1987); S. S Cliff and M. H. Thiemens, Science 278, 1774 (1997).
- (1987) Geophys. Res. Lett. , vol.14 , pp. 80
- Mauersberger, K.¹

83
- 0030661682
- M. H. Thiemens, T. Jackson, K. Mauersberger, B. Schueler, J. Morton, Geophys. Res. Lett 18, 669 (1991); M. H. Thiemens and T. L. Jackson, ibid. 22, 255 (1995); J. C. Johnston and M. H. Thiemens, J. Geophys. Res. 102, 25395 (1997); K. Mauersberger, Geophys. Res. Lett. 14, 80 (1987); S. S Cliff and M. H. Thiemens, Science 278, 1774 (1997).
- (1997) Science , vol.278 , pp. 1774
- Cliff, S.S.¹ Thiemens, M.H.²

84
- 2642685205
- note
- We thank A. K. Huff, M. Humayun, and two reviewers for comments, and we acknowledge financial support from NSF (EAR-9704676) (J.F.) and NASA (NAG5-4574) (M.H.T.).

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