-
1
-
-
0020970297
-
-
2: Natural Variations Archean to Present, E. T. Sundquist and W. S. Broecker, Eds. (American Geophysical Union, Washington, DC, 1985), pp. 397-411; R. A. Berner and D. E. Canfield, Am. J. Sci. 289, 333 (1989); M. I. Budyko, A. B. Ronov, A. L. Yanshin, History of the Earth's Atmosphere (Springer-Verlag, Berlin, 1987); R. A. Berner, Science 249, 1382 (1990).
-
(1983)
Am. J. Sci.
, vol.283
, pp. 641
-
-
Berner, R.A.1
Lasaga, A.C.2
Garrels, R.M.3
-
2
-
-
0022236642
-
-
E. T. Sundquist and W. S. Broecker, Eds. American Geophysical Union, Washington, DC
-
2: Natural Variations Archean to Present, E. T. Sundquist and W. S. Broecker, Eds. (American Geophysical Union, Washington, DC, 1985), pp. 397-411; R. A. Berner and D. E. Canfield, Am. J. Sci. 289, 333 (1989); M. I. Budyko, A. B. Ronov, A. L. Yanshin, History of the Earth's Atmosphere (Springer-Verlag, Berlin, 1987); R. A. Berner, Science 249, 1382 (1990).
-
(1985)
2: Natural Variations Archean to Present
, pp. 397-411
-
-
Lasaga, A.C.1
Berner, R.A.2
Garrels, R.M.3
-
3
-
-
0024856908
-
-
2: Natural Variations Archean to Present, E. T. Sundquist and W. S. Broecker, Eds. (American Geophysical Union, Washington, DC, 1985), pp. 397-411; R. A. Berner and D. E. Canfield, Am. J. Sci. 289, 333 (1989); M. I. Budyko, A. B. Ronov, A. L. Yanshin, History of the Earth's Atmosphere (Springer-Verlag, Berlin, 1987); R. A. Berner, Science 249, 1382 (1990).
-
(1989)
Am. J. Sci.
, vol.289
, pp. 333
-
-
Berner, R.A.1
Canfield, D.E.2
-
4
-
-
85040870062
-
-
Springer-Verlag, Berlin
-
2: Natural Variations Archean to Present, E. T. Sundquist and W. S. Broecker, Eds. (American Geophysical Union, Washington, DC, 1985), pp. 397-411; R. A. Berner and D. E. Canfield, Am. J. Sci. 289, 333 (1989); M. I. Budyko, A. B. Ronov, A. L. Yanshin, History of the Earth's Atmosphere (Springer-Verlag, Berlin, 1987); R. A. Berner, Science 249, 1382 (1990).
-
(1987)
History of the Earth's Atmosphere
-
-
Budyko, M.I.1
Ronov, A.B.2
Yanshin, A.L.3
-
5
-
-
0025197828
-
-
2: Natural Variations Archean to Present, E. T. Sundquist and W. S. Broecker, Eds. (American Geophysical Union, Washington, DC, 1985), pp. 397-411; R. A. Berner and D. E. Canfield, Am. J. Sci. 289, 333 (1989); M. I. Budyko, A. B. Ronov, A. L. Yanshin, History of the Earth's Atmosphere (Springer-Verlag, Berlin, 1987); R. A. Berner, Science 249, 1382 (1990).
-
(1990)
Science
, vol.249
, pp. 1382
-
-
Berner, R.A.1
-
7
-
-
85046385451
-
-
B. Aston, Nature 114, 786 (1924); H. Brown, in The Atmospheres of the Earth and Planets, G. P. Kuiper, Ed. (Univ. of Chicago Press, Chicago, 1952), pp. 258-266.
-
(1924)
Nature
, vol.114
, pp. 786
-
-
Aston, B.1
-
8
-
-
0009661873
-
-
G. P. Kuiper, Ed. Univ. of Chicago Press, Chicago
-
B. Aston, Nature 114, 786 (1924); H. Brown, in The Atmospheres of the Earth and Planets, G. P. Kuiper, Ed. (Univ. of Chicago Press, Chicago, 1952), pp. 258-266.
-
(1952)
The Atmospheres of the Earth and Planets
, pp. 258-266
-
-
Brown, H.1
-
10
-
-
0002353427
-
-
F. Buddington, A. E. J. Engel, H. L. James, B. F. Leonard, Eds. Geological Society of America, New York
-
H. D. Holland, in Petrologic Studies: A Volume to Honor A. F. Buddington, A. E. J. Engel, H. L. James, B. F. Leonard, Eds. (Geological Society of America, New York, 1962), pp. 447-477.
-
(1962)
Petrologic Studies: A Volume to Honor A
, pp. 447-477
-
-
Holland, H.D.1
-
11
-
-
0001962281
-
-
D. Black and M. S. Matthews, Eds. Univ. of Arizona Press, Tucson, AZ
-
V. S. Safronov and T. V. Ruzmaikina, in Protostars and Protoplanets II, D. Black and M. S. Matthews, Eds. (Univ. of Arizona Press, Tucson, AZ, 1986), pp. 959-980.
-
(1986)
Protostars and Protoplanets II
, pp. 959-980
-
-
Safronov, V.S.1
Ruzmaikina, T.V.2
-
13
-
-
85034941292
-
-
in (9), pp. 519-550
-
_, in (9), pp. 519-550.
-
-
-
-
14
-
-
0004210181
-
-
Lunar and Planetary Institute, Houston, TX
-
W. K. Hartmann, R. J. Phillips, G. J. Taylor, Origin of the Moon (Lunar and Planetary Institute, Houston, TX, 1986).
-
(1986)
Origin of the Moon
-
-
Hartmann, W.K.1
Phillips, R.J.2
Taylor, G.J.3
-
15
-
-
0025590336
-
-
H. E. Newsom and J. H. Jones, Eds. Oxford Univ. Press, New York
-
D. J. Stevenson, in Origin of the Earth, H. E. Newsom and J. H. Jones, Eds. (Oxford Univ. Press, New York, 1990), pp. 231-249.
-
(1990)
Origin of the Earth
, pp. 231-249
-
-
Stevenson, D.J.1
-
17
-
-
85034937981
-
-
note
-
The issue of whether the oxidation state of volcanic gases has remained constant is not yet resolved. See (13) and discussion below.
-
-
-
-
20
-
-
0003041160
-
-
A. Benlow and A. J. Meadows, Astrophys. Space Sci. 46, 293 (1977); M. A. Lange and T. J. Ahrens, Icarus 51, 96 (1982).
-
(1982)
Icarus
, vol.51
, pp. 96
-
-
Lange, M.A.1
Ahrens, T.J.2
-
21
-
-
0022554985
-
-
T. Matsui and Y. Abe, Nature 319, 303 (1986); K. J. Zahnle, J. F. Kasting, J. B. Pollack, Icarus 74, 62 (1988).
-
(1986)
Nature
, vol.319
, pp. 303
-
-
Matsui, T.1
Abe, Y.2
-
22
-
-
0024274905
-
-
T. Matsui and Y. Abe, Nature 319, 303 (1986); K. J. Zahnle, J. F. Kasting, J. B. Pollack, Icarus 74, 62 (1988).
-
(1988)
Icarus
, vol.74
, pp. 62
-
-
Zahnle, K.J.1
Kasting, J.F.2
Pollack, J.B.3
-
24
-
-
0001110195
-
-
M. Ozima and K. Nakazawa, Nature 284, 313 (1980); K. J. Zahnle, J. B. Pollack, J. F. Kasting, Geochim. Cosmochim. Acta 54, 2577 (1990).
-
(1980)
Nature
, vol.284
, pp. 313
-
-
Ozima, M.1
Nakazawa, K.2
-
25
-
-
0025573930
-
-
M. Ozima and K. Nakazawa, Nature 284, 313 (1980); K. J. Zahnle, J. B. Pollack, J. F. Kasting, Geochim. Cosmochim. Acta 54, 2577 (1990).
-
(1990)
Geochim. Cosmochim. Acta
, vol.54
, pp. 2577
-
-
Zahnle, K.J.1
Pollack, J.B.2
Kasting, J.F.3
-
26
-
-
0041509672
-
-
S. K. Atreya, J. B. Pollack, M. S. Matthews, Eds. Univ. of Arizona Press, Tucson, AZ
-
M. Ozima and G. Igarashi, in Origin and Evolution of Planetary and Satellite Atmospheres, S. K. Atreya, J. B. Pollack, M. S. Matthews, Eds. (Univ. of Arizona Press, Tucson, AZ, 1989), pp. 306-327.
-
(1989)
Origin and Evolution of Planetary and Satellite Atmospheres
, pp. 306-327
-
-
Ozima, M.1
Igarashi, G.2
-
27
-
-
0025697718
-
-
K. Zahnle, J. F. Kasting, J. B. Pollack, Icarus 84, 502 (1990),
-
(1990)
Icarus
, vol.84
, pp. 502
-
-
Zahnle, K.1
Kasting, J.F.2
Pollack, J.B.3
-
28
-
-
0000134619
-
-
V. M. Canuto, J. Levine, T. Augustsson, C. Imhoff, Nature 296, 816 (1982); K, J, Zahnle and J. C. G. Walker, Rev. Geophys Space Phys. 20, 280 (1982).
-
(1982)
Nature
, vol.296
, pp. 816
-
-
Canuto, V.M.1
Levine, J.2
Augustsson, T.3
Imhoff, C.4
-
29
-
-
0020136814
-
-
V. M. Canuto, J. Levine, T. Augustsson, C. Imhoff, Nature 296, 816 (1982); K, J, Zahnle and J. C. G. Walker, Rev. Geophys Space Phys. 20, 280 (1982).
-
(1982)
Rev. Geophys Space Phys.
, vol.20
, pp. 280
-
-
Zahnle, K.J.1
Walker, J.C.G.2
-
30
-
-
85034942384
-
-
R. G. Prinn and B. Fegley, Jr., in (18), pp. 78-136
-
It has been argued that solar EUV energy would have been blocked out by interplanetary dust during the main accretion period [R. G. Prinn and B. Fegley, Jr., in (18), pp. 78-136], but this may not have been true once the planetesimals had aggregated into relatively large bodies. This happens relatively early during accretion, according to Wetherill (8).
-
-
-
-
33
-
-
85034940594
-
-
G. Dreibus and H. Wänke, in (18), pp. 268-288
-
G. Dreibus and H. Wänke, in (18), pp. 268-288.
-
-
-
-
34
-
-
85034940713
-
-
note
-
Actually, if impacts were large and sporadic, as suggested by Weatherill (7), the steam atmosphere may have condensed out and reevaporated several times.
-
-
-
-
38
-
-
0008648330
-
-
A. B. Ronov and A. A. Yaroshevskiy, Geochemistry 11, 1041 (1967), H. D. Holland, The Chemistry of the Atmosphere and Oceans ( Wiley, New York, 1978).
-
(1967)
Geochemistry
, vol.11
, pp. 1041
-
-
Ronov, A.B.1
Yaroshevskiy, A.A.2
-
41
-
-
0000033493
-
-
E. Anders and T. Owen, ibid 198, 453 (1977); C. F. Chyba, Nature 330, 632 (1987); ibid. 343, 129 (1989).
-
(1977)
Science
, vol.198
, pp. 453
-
-
Anders, E.1
Owen, T.2
-
42
-
-
36849147660
-
-
E. Anders and T. Owen, ibid 198, 453 (1977); C. F. Chyba, Nature 330, 632 (1987); ibid. 343, 129 (1989).
-
(1987)
Nature
, vol.330
, pp. 632
-
-
Chyba, C.F.1
-
43
-
-
85143005377
-
-
E. Anders and T. Owen, ibid 198, 453 (1977); C. F. Chyba, Nature 330, 632 (1987); ibid. 343, 129 (1989).
-
(1989)
Nature
, vol.343
, pp. 129
-
-
-
45
-
-
0022554986
-
-
B. Fegley, R. G. Prinn, H. Hartman, G. H. Watkins, Nature 319, 305 (1986).
-
(1986)
Nature
, vol.319
, pp. 305
-
-
Fegley, B.1
Prinn, R.G.2
Hartman, H.3
Watkins, G.H.4
-
49
-
-
0024857198
-
-
N. H. Sleep, K. J. Zahnle, J. F. Kasting, H. J. Morowitz, ibid. 342, 139 (1989).
-
(1989)
Nature
, vol.342
, pp. 139
-
-
Sleep, N.H.1
Zahnle, K.J.2
Kasting, J.F.3
Morowitz, H.J.4
-
50
-
-
85034935440
-
-
note
-
A 100-km-diameter impactor, equal in size to the ones that produced the craters Imbrium and Orientale on the Moon, would evaporate the top 30 m of the ocean (37). Impactors of twice this diameter would have vaporized the entire photic zone.
-
-
-
-
51
-
-
37049243502
-
-
S. L. Miller, Science 117, 528 (1953); _ and H. C. Urey, ibid. 130, 245 (1959).
-
(1953)
Science
, vol.117
, pp. 528
-
-
Miller, S.L.1
-
52
-
-
33748637711
-
-
S. L. Miller, Science 117, 528 (1953); _ and H. C. Urey, ibid. 130, 245 (1959).
-
(1959)
Science
, vol.130
, pp. 245
-
-
Urey, H.C.1
-
53
-
-
85034941254
-
-
note
-
rd ACS Meeting GEOC 149 (American Chemical Society, San Francisco, 1992)] has discovered a possible alternative source for ammonia involving formation of nitrate or nitrite in the atmosphere, followed by reaction with dissolved ferrous iron in the ocean.
-
-
-
-
55
-
-
85034933504
-
-
S. Chang, D. DesMarais, R. Mack, S. L. Miller, G. E. Strathearn, in (34), pp. 53-92
-
S. Chang, D. DesMarais, R. Mack, S. L. Miller, G. E. Strathearn, in (34), pp. 53-92.
-
-
-
-
56
-
-
85034939399
-
-
personal communication
-
J. Delano, personal communication.
-
-
-
Delano, J.1
-
57
-
-
85034944401
-
-
in preparation
-
D. H. Eggler, J. W. Harris, N. V. Sobolev, E. S. Yefimova, J. P. Lorand, in preparation.
-
-
-
Eggler, D.H.1
Harris, J.W.2
Sobolev, N.V.3
Yefimova, E.S.4
Lorand, J.P.5
-
58
-
-
0000998171
-
-
Even if methane and ammonia were released from volcanos, they would have been minor atmospheric constituents because they are rapidly destroyed by photolysis [W. R. Kuhn and S. K. Atreya, Icarus 37, 207 (1979); see also (46)]. But they could still have played an important role in the chemistry of life's origins.
-
(1979)
Icarus
, vol.37
, pp. 207
-
-
Kuhn, W.R.1
Atreya, S.K.2
-
60
-
-
0018395129
-
-
Y. L. Yung and M. B. McElroy, Nature 203, 1002 (1979); J. S. Levine, J. Mol. Evol. 18, 161 (1982).
-
(1979)
Nature
, vol.203
, pp. 1002
-
-
Yung, Y.L.1
McElroy, M.B.2
-
61
-
-
0020023966
-
-
Y. L. Yung and M. B. McElroy, Nature 203, 1002 (1979); J. S. Levine, J. Mol. Evol. 18, 161 (1982).
-
(1982)
J. Mol. Evol.
, vol.18
, pp. 161
-
-
Levine, J.S.1
-
64
-
-
36949090450
-
-
J. Oro, Nature 190, 389 (1961); C. F. Chyba, P. J. Thomas, L. Brookshaw, C. Sagan, Science 249, 366 (1990).
-
(1961)
Nature
, vol.190
, pp. 389
-
-
Oro, J.1
-
65
-
-
0025573714
-
-
J. Oro, Nature 190, 389 (1961); C. F. Chyba, P. J. Thomas, L. Brookshaw, C. Sagan, Science 249, 366 (1990).
-
(1990)
Science
, vol.249
, pp. 366
-
-
Chyba, C.F.1
Thomas, P.J.2
Brookshaw, L.3
Sagan, C.4
-
66
-
-
0002721057
-
-
J. B. Corliss, J. A. Baross, S. E. Hoffman, Ocean Acta 4 (suppl.), 59 (1981); E. L. Shock, Orig. Life 20, 331 (1990).
-
(1981)
Ocean Acta
, vol.4
, Issue.SUPPL.
, pp. 59
-
-
Corliss, J.B.1
Baross, J.A.2
Hoffman, S.E.3
-
67
-
-
33750986723
-
-
J. B. Corliss, J. A. Baross, S. E. Hoffman, Ocean Acta 4 (suppl.), 59 (1981); E. L. Shock, Orig. Life 20, 331 (1990).
-
(1990)
Orig. Life
, vol.20
, pp. 331
-
-
Shock, E.L.1
-
68
-
-
85034942950
-
-
Special issues dealing with the comet theory and the hydrothermal vent theory have been published recently as Orig. Life 21, Nos. 5 and 6, (1991-1992) and ibid. 22, Nos. 1 to 4 (1992).
-
(1991)
Orig. Life
, vol.21
, Issue.5-6
-
-
-
69
-
-
85034945105
-
-
Special issues dealing with the comet theory and the hydrothermal vent theory have been published recently as Orig. Life 21, Nos. 5 and 6, (1991-1992) and ibid. 22, Nos. 1 to 4 (1992).
-
(1992)
Orig. Life
, vol.22
, Issue.1-4
-
-
-
70
-
-
0000115160
-
-
M. J. Newman and R. T. Rood, Science 198, 1035 (1977); D. O. Gough, Sol. Phys. 74, 21 (1981); R. L. Gilliland, Global Planet. Change 1, 35 (1989).
-
(1977)
Science
, vol.198
, pp. 1035
-
-
Newman, M.J.1
Rood, R.T.2
-
71
-
-
0002751925
-
-
M. J. Newman and R. T. Rood, Science 198, 1035 (1977); D. O. Gough, Sol. Phys. 74, 21 (1981); R. L. Gilliland, Global Planet. Change 1, 35 (1989).
-
(1981)
Sol. Phys.
, vol.74
, pp. 21
-
-
Gough, D.O.1
-
72
-
-
45249129669
-
-
M. J. Newman and R. T. Rood, Science 198, 1035 (1977); D. O. Gough, Sol. Phys. 74, 21 (1981); R. L. Gilliland, Global Planet. Change 1, 35 (1989).
-
(1989)
Global Planet. Change
, vol.1
, pp. 35
-
-
Gilliland, R.L.1
-
76
-
-
84893394905
-
-
The faint young sun problem could also be solved if the early sun was more massive than it is today [T. E. Graedel, I.-J. Sackmann, A. I. Boothroyd, Geophys. Res. Lett. 18, 1881 (1991)], but such nonstandard solar models have yet to be accepted by the astronomical community.
-
(1991)
Geophys. Res. Lett.
, vol.18
, pp. 1881
-
-
Graedel, T.E.1
Sackmann, I.-J.2
Boothroyd, A.I.3
-
77
-
-
0018688151
-
-
A. Henderson-Sellers, Nature 279, 786 (1979); W. B. Rossow, A. Henderson-Sellers, S. K. Weinreich, Science 217, 1245 (1982).
-
(1979)
Nature
, vol.279
, pp. 786
-
-
Henderson-Sellers, A.1
-
78
-
-
0020367944
-
-
A. Henderson-Sellers, Nature 279, 786 (1979); W. B. Rossow, A. Henderson-Sellers, S. K. Weinreich, Science 217, 1245 (1982).
-
(1982)
Science
, vol.217
, pp. 1245
-
-
Rossow, W.B.1
Henderson-Sellers, A.2
Weinreich, S.K.3
-
80
-
-
0020969450
-
-
L. A. Frakes, Climates Throughout Geologic Time (Elsevier, New York, 1979); T. J. Crowley, Rev. Geophys. Space Phys. 21, 828 (1983).
-
(1983)
Rev. Geophys. Space Phys.
, vol.21
, pp. 828
-
-
Crowley, T.J.1
-
81
-
-
0020862816
-
-
A possible earlier glaciation recorded in the Witwatersrand sequence in South Africa is discussed by J. C. Crowell [Trans. Geol. Soc. S. Afr. 86, 237 (1983)].
-
(1983)
Trans. Geol. Soc. S. Afr.
, vol.86
, pp. 237
-
-
Crowell, J.C.1
-
84
-
-
85034939073
-
-
J. W. Schopf and C. Klein, Eds. Cambridge Univ. Press, Cambridge
-
_, in The Proterozoic Biosphere: A Multidisciplinary Study, J. W. Schopf and C. Klein, Eds. (Cambridge Univ. Press, Cambridge, 1992), pp. 165-168.
-
(1992)
The Proterozoic Biosphere: A Multidisciplinary Study
, pp. 165-168
-
-
-
85
-
-
0027009337
-
-
D. J. DesMarais, H. Strauss, R. E. Summons, J. M. Hayes, Nature 359, 605 (1992).
-
(1992)
Nature
, vol.359
, pp. 605
-
-
DesMarais, D.J.1
Strauss, H.2
Summons, R.E.3
Hayes, J.M.4
-
89
-
-
0026304055
-
-
C. P. Sonett, M. S. Giampapa, M. S. Matthews, Eds. Univ. of Arizona Press, Tucson, AZ
-
J. F. Kasting and D. H. Grinspoon, in The Sun in Time, C. P. Sonett, M. S. Giampapa, M. S. Matthews, Eds. (Univ. of Arizona Press, Tucson, AZ, 1991), pp. 447-462.
-
(1991)
The Sun in Time
, pp. 447-462
-
-
Kasting, J.F.1
Grinspoon, D.H.2
-
92
-
-
0001715918
-
-
and references therein
-
P. E. Cloud, Am. J. Sci. 272, 537 (1972), and references therein.
-
(1972)
Am. J. Sci.
, vol.272
, pp. 537
-
-
Cloud, P.E.1
-
93
-
-
85034936846
-
-
C. Klein and N. J. Beukes, in (63), pp. 139-146
-
C. Klein and N. J. Beukes, in (63), pp. 139-146.
-
-
-
-
94
-
-
85034935010
-
-
note
-
A few anomalous BIFs, including the Urucum in Brazil and the Rapitan in Canada, were formed much later near the end of the Proterozoic [see (72)]. Their possible significance is discussed in (74).
-
-
-
-
98
-
-
85034936270
-
-
J. C. G. Walker, C. Klein, M. Schidlowski, J. W. Schopf, D. J. Stevenson, M. R. Walter, in (34), pp. 260-290
-
J. C. G. Walker, C. Klein, M. Schidlowski, J. W. Schopf, D. J. Stevenson, M. R. Walter, in (34), pp. 260-290.
-
-
-
-
99
-
-
85034935105
-
-
J. F. Kasting, in (63), pp. 1185-1187
-
J. F. Kasting, in (63), pp. 1185-1187.
-
-
-
-
109
-
-
85034944519
-
-
J. M. Hayes, in (34), pp. 291-301
-
J. M. Hayes, in (34), pp. 291-301.
-
-
-
-
110
-
-
0026614460
-
-
R. Buick, Science 255, 74 (1992).
-
(1992)
Science
, vol.255
, pp. 74
-
-
Buick, R.1
-
111
-
-
0019705987
-
-
K. M. Towe, Precambrian Res. 16, 1 (1981); ibid. 20, 161 (1983); Nature 348, 54 (1990).
-
(1981)
Precambrian Res.
, vol.16
, pp. 1
-
-
Towe, K.M.1
-
112
-
-
0020974776
-
-
K. M. Towe, Precambrian Res. 16, 1 (1981); ibid. 20, 161 (1983); Nature 348, 54 (1990).
-
(1983)
Precambrian Res.
, vol.20
, pp. 161
-
-
-
113
-
-
0019705987
-
-
K. M. Towe, Precambrian Res. 16, 1 (1981); ibid. 20, 161 (1983); Nature 348, 54 (1990).
-
(1990)
Nature
, vol.348
, pp. 54
-
-
-
117
-
-
85034944767
-
-
M. Schidlowski, J. M. Hayes, I. R. Kaplan, in (34), pp. 149-186
-
M. Schidlowski, J. M. Hayes, I. R. Kaplan, in (34), pp. 149-186.
-
-
-
-
118
-
-
85034946375
-
-
note
-
2.
-
-
-
-
119
-
-
84918265986
-
-
E. Hesstvedt, S. Henrikson, H. Hjartarson, Geophys. Norv. 31, 1 (1974); A. J. Blake and J. H. Carver, J. Atmos. Sci. 34, 720 (1977); J. S. Levine, P. B. Hays, J. C. G. Walker, Icarus 39, 295 (1979); J. F. Kasting, H. D. Holland, J. P. Pinto, J. Geophys. Res. 90, 10,497 (1985).
-
(1974)
Geophys. Norv.
, vol.31
, pp. 1
-
-
Hesstvedt, E.1
Henrikson, S.2
Hjartarson, H.3
-
120
-
-
0041900471
-
-
E. Hesstvedt, S. Henrikson, H. Hjartarson, Geophys. Norv. 31, 1 (1974); A. J. Blake and J. H. Carver, J. Atmos. Sci. 34, 720 (1977); J. S. Levine, P. B. Hays, J. C. G. Walker, Icarus 39, 295 (1979); J. F. Kasting, H. D. Holland, J. P. Pinto, J. Geophys. Res. 90, 10,497 (1985).
-
(1977)
J. Atmos. Sci.
, vol.34
, pp. 720
-
-
Blake, A.J.1
Carver, J.H.2
-
121
-
-
0013167964
-
-
E. Hesstvedt, S. Henrikson, H. Hjartarson, Geophys. Norv. 31, 1 (1974); A. J. Blake and J. H. Carver, J. Atmos. Sci. 34, 720 (1977); J. S. Levine, P. B. Hays, J. C. G. Walker, Icarus 39, 295 (1979); J. F. Kasting, H. D. Holland, J. P. Pinto, J. Geophys. Res. 90, 10,497 (1985).
-
(1979)
Icarus
, vol.39
, pp. 295
-
-
Levine, J.S.1
Hays, P.B.2
Walker, J.C.G.3
-
122
-
-
0022264385
-
-
E. Hesstvedt, S. Henrikson, H. Hjartarson, Geophys. Norv. 31, 1 (1974); A. J. Blake and J. H. Carver, J. Atmos. Sci. 34, 720 (1977); J. S. Levine, P. B. Hays, J. C. G. Walker, Icarus 39, 295 (1979); J. F. Kasting, H. D. Holland, J. P. Pinto, J. Geophys. Res. 90, 10,497 (1985).
-
(1985)
J. Geophys. Res.
, vol.90
-
-
Kasting, J.F.1
Holland, H.D.2
Pinto, J.P.3
-
123
-
-
85034942427
-
-
note
-
2 levels could therefore be viable regardless of one's interpretation of the C isotopic data.
-
-
-
-
124
-
-
0022554928
-
-
12C ratios occur also between 650 and 800 million years ago [A. H. Knoll, J. M. Hayes, A. J. Kaufman, K. Swett, I. B. Lambert, Nature 321, 832 (1986)], but concurrently measured Sr isotope ratios imply that the organic carbon burial rate was low during this time. The isotope shift may have been caused by a temporary return to anoxic conditions in the deep ocean (74).
-
(1986)
Nature
, vol.321
, pp. 832
-
-
Knoll, A.H.1
Hayes, J.M.2
Kaufman, A.J.3
Swett, K.4
Lambert, I.B.5
-
125
-
-
0008359193
-
-
J. R. Nursall, Nature 183, 1170 (1959); L. V. Berkner and L. C. Marshall, J. Atmos. Sci. 22, 225 (1965).
-
(1959)
Nature
, vol.183
, pp. 1170
-
-
Nursall, J.R.1
-
128
-
-
0003805675
-
-
NASA Solar System Exploration Division, Washington, DC
-
TOPS: Toward Other Planetary Systems (NASA Solar System Exploration Division, Washington, DC, 1992).
-
(1992)
TOPS: Toward Other Planetary Systems
-
-
-
129
-
-
85034938512
-
-
note
-
This NASA project, formerly known as the Search for Extraterrestrial Intelligence (SETI), has been renamed the High Resolution Microwave Survey (HRMS).
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