Labels:text | diagram | sketch OCR: PLATE 2 45' 65 . 3 67 . 15' 67 .00 15 66 .00 45 30 .. + 18 30 16 30 + 0.28 15' 15 3/3 0 · EXPLANATION Gravity station ( ) Shoreline of Puerto Rico 18 00 18 00 + Contours showing filtered Bouguer gravity in milligals. Contour intervals 1 and 5 mGal. Hachures indicate closed gravity lows. 57 Computed from the Complete Bouguer Gravity Map of Puerto Rico using a filter that retains wavelengths of less than 13 km. See text for fuller explanation. 65 45 30' Scale 1:200,000 15' 66 .00 45 67 º 15' FILTERED BOUGUER GRAVITY MAP OF PUERTO RICO By Andrew Griscom and Nami E. Kitchen
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