OSCILLATIONS OR NOT OSCILLATIONS, THAT IS THE QUESTION - COMMENT ON ANGULO,R.J. AND LESSA,C.C. THE BRAZILIAN SEA-LEVEL CURVES - A CRITICAL-REVIEW WITH EMPHASIS ON THE CURVES FROM THE PARANAGUA AND CANANEIA REGIONS [MAR. GEOL. 140, 141-166]

Relative sea level fluctuation curves, during the last seven thousand years, have been delineated for several sectors of the Brazilian coast . These curves have shown that the central Brazilian coast has been su bject to submergence until approximately 5100 yr BP and to emergence s ince then. However, the emergence after 5100 yr BP was interrupted by two high-frequency oscillations with amplitude of approximately 2-3 m and duration of about 300 yr. Angulo and Lessa, [Mar. Geol. 140 (1997) 141-166] have recently questioned the existence of these oscillations . However, several different lines of evidence strongly confirm the ex istence of these high-frequency oscillations. (C) 1998 Elsevier Scienc e B.V. All rights reserved.