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THE SEDIMENTARY CYCLES AND THEIR MEANING IN THE DEVELOPMENT OF THE ALBIAN Different sedimentary cycle's scales detected in geophysical profiles helped to detail the stratigraphic and the genetic interpretation ofAlbian carbonates of the Campos Basin, offshore of Brazil. The study has defined ten Large Composed Sequence Scale (SCGE's), involving 1.4 to 0.3 My periods, and more than seventy Small Composed Sequence Scale (SCPE's) of shorter periods. The halocinetic control is shown as most effective factor in the creation of space for the third order cyclotems. On the order hand, orbital parameters constrain the modulation of the faciologic succession of the allostratigraphic units of higher frequencies, being short eccentricity orbital cycles (1OOka of duration) the best developed. Based on wire-line log patterns of the SCGE's, it was possible to distinguish variations in the cyclothems formed in flat carbonate platform environments from those ofdeeper waters. It was recognized a difference in one order of magnitude in the accumulation rates between these two depositional environments. As consequence of the high resolution stratigraphy obtained, the detection of hiatus in the succession became more obvious, this will help in improove the precision of the geologic record.

OS CICLOS SEDIMENTARES E SEUS SIGNIFICADOS NA FORMAÇÃO DAS SEQÜÊNCIAS DEPOSICIONAIS CARBONÁTICAS ALBIANAS DA BACIA DE CAMPOS