Page 34 - Petroleum Geology
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                                                                               108  Fig. 1-5.  Mean sea-surface topography. Contour interval: 2 m. (Courtesy NASA/Goddard Space Flight Center.)






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                        298.257
                    1.8 x lo6  OBSERVATIONS  GRID, 2M CONTOUR   M.  l/f=  a,=6378137  (GSFC PGS S4 ORBITS)   36








                      lo
                                                                             -  72   a
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