Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Oceans history

Paleoenvironmental Indicators Elements or compounds that reflect ocean history. [Pg.134]

Despite these caveats, oxygen isotopic ratios are probably the most widely used climate proxy in ocean history research. Reasons for this widespread use relate to the history of oxygen isotopes in geological research (see Section 6.14.2), the fact that they can be measured quite precisely by mass spectrometry and are relatively immune, at least in younger deposits, to secondary effects, the fact that records tend to be quite reproducible and clearly record climate variability, and finally, because records have proven so useful for stratigraphic and chronological purposes. [Pg.3215]

Schneider R. R., Muller P. J., and Acheson R. (1999) Atlantic alkenone sea surface temperature records. In Reconstructing Ocean History A Window into the Past (eds. Abrantes and A. C. Mix). Academic Press, New York, pp. 33-55. [Pg.3277]

Figure 8 Methane variations during the most reeent glaeial period as recorded in ice cores from Greenland (GRIP) and Antarctica (Byrd, Vostok) (Blunier et al, 1998 Stauffer et aL, 1998). The records were correlated by statistical matching of the variations shown (Blunier et al. (1999) reproduced by permission of Kluwer Academic/Plenum Publishers from Reconstructing Ocean History A Window into the Future, 1999, pp. 121-138 (figure 1)). Figure 8 Methane variations during the most reeent glaeial period as recorded in ice cores from Greenland (GRIP) and Antarctica (Byrd, Vostok) (Blunier et al, 1998 Stauffer et aL, 1998). The records were correlated by statistical matching of the variations shown (Blunier et al. (1999) reproduced by permission of Kluwer Academic/Plenum Publishers from Reconstructing Ocean History A Window into the Future, 1999, pp. 121-138 (figure 1)).
Blunier T., Stocker T. F., Chappellaz J., and Raynaud D. (1999) Phase lag of Antarctic and Greenland temperature in the last glacial and link between CO2 variations and Heinrich events. In Reconstructing ocean history A window into the future Proceedings of the Sixth International Conference on Paleoceanograpky) (eds. F. Abrantes and A. Mix). Kluwer Academic/Plenum, New York,pp. 121-138. [Pg.4327]

Wefer, G., Berger, W. H., Bijma, J. Fischer, G. 1999. Clues to ocean history A brief overview of proxies. 7n FISHER, G. WEFER, G. (eds) Uses of Proxies in Paleoceanography Examples from the South Atlantic. Springer-Verlag, Berlin Heidelberg, 1-68. [Pg.2]

Diester-Haass, L. Zahn, R. 1996. Eocene-Oligocene transition in the Southern Ocean history of water mass circulation and biological productivity. Geology, 24, 163-166. [Pg.70]

Clues to Ocean History a brief overview of proxies. In FISCHER, G. WEFER, G. (eds) Use of... [Pg.172]

The dissolved oxygen content of surface oceanic water is mainly determined by its biological history it always tends, by solution from the air, towards... [Pg.367]

The Earth is a highly unusual planet because life did evolve on it and it thrived to the extent that the surface and atmosphere of the planet were greatly modified. The Earth is unique in this respect relative to all known astronomical bodies (Taylor, 1999). The Earth s location, composition, and evolutionary history are all significant factors in the planet s success in nurturing life. Critical factors include its temperature, its atmosphere, its oceans, its long-term stability and its "just right" abundance of water and other light element compounds. [Pg.27]

It is now widely accepted that the compositions of the atmosphere and world ocean are dynamically controlled. The atmosphere and the ocean are nearly homogeneous with respect to most major chemical constituents. Each can be viewed as a reservoir for which processes add material, remove material, and alter the compositions of substances internally. The history of the relative rates of these processes determines the concentrations of substances within a reservoir and the rate at which concentrations change. Commonly, only a few processes predominate in determining the flux of a substance between reservoirs. In turn, particular features of a predominant process are often critical in controlling the flux of a phase through that process. These are rate-controlling steps. [Pg.195]

MSA and SOl histories from Antarctica (Legrand et al, 1991) imply a very different response (Fig. 18-18) for the southern oceans than for those of the north. While not... [Pg.486]

Miller (1989) is the question of how such an ancient organism has come to exist on a comparatively new oceanic island. Long-distance dispersal is an unlikely explanation for the present situation. Dispersal over shorter distances from island to island seems a reasonable possibility, with subsequent disappearance of many, or apparently all in the present case, of the intermediate stepping stones. Invocation of island hopping, after all, has many precedents. As Miller (1989) pointed out, obviously some vascular plant lineages have survived, some of which may have histories that reach back to the Antarctic flora. Needless to say, deep phylogenetic analyses would be helpful in addressing this question. [Pg.263]

Tajika, E. (1992) Evolution of the atmosphere and ocean of the Earth global geochemical cycles of C,H,0,N, and S, and degassing history coupled with thermal history. Doctoral Thesis, University Tokyo, 416 pp. [Pg.447]

R. G. B. Brown, G. Curl, Jr., H. Curl, S. Christopherson, D. Dale, C. Hall, L. Harris, J. Kaperick, D. Kennedy, E. Levine, D. Mattson, B. McFarland, J. McGee, C. L. Merriam, J. Morris, J. Murphy, R. Pavia, E. Shaw, J. Snider, M. Straub, and I. C. White. Oil spill case histories 1967-1991. Summaries of significant U.S. and international oil spills. National Oceanic and Atmospheric Administration HMRAD 92-11, NOAA Hazardous Material Response and Assessment Division, Seattle, Washington, 1992. [Pg.364]

Muhs DR, Kermedy G, Rockwell TK (1994) Uranitun-series ages of marine terrace corals from the Pacific coast of North America and implications for last-interglacial sea level history. Qrrat Res 42 72-87 Nozaki Y, Nakanishi T (1985) Pa and °Th profiles in the open ocean water coltrrrm. Deep-Sea Res 32 1209-1220... [Pg.403]

Eppley RW (1989) New production history, methods, problems. In Productivity of the ocean Present and past. Berger WH, Smetacek VS, Wefer G (eds) John Wiley Sons, Chichester, p 85-97 Feely RA, Sabine CL, Takahashi T, Wanninfhof R (2001) Uptake and storage of carbon dioxide in the ocean The Global CO2 Survey. Oceanogr 14 18-32... [Pg.489]


See other pages where Oceans history is mentioned: [Pg.1]    [Pg.3]    [Pg.593]    [Pg.3258]    [Pg.3396]    [Pg.4070]    [Pg.967]    [Pg.1]    [Pg.3]    [Pg.593]    [Pg.3258]    [Pg.3396]    [Pg.4070]    [Pg.967]    [Pg.286]    [Pg.287]    [Pg.40]    [Pg.118]    [Pg.10]    [Pg.3]    [Pg.51]    [Pg.600]    [Pg.192]    [Pg.14]    [Pg.23]    [Pg.24]    [Pg.25]    [Pg.25]    [Pg.26]    [Pg.459]    [Pg.461]    [Pg.469]    [Pg.486]    [Pg.489]    [Pg.32]    [Pg.292]    [Pg.60]   
See also in sourсe #XX -- [ Pg.247 ]




SEARCH



© 2024 chempedia.info