Changes

  | isbn    = 0-89181-602-X

  | isbn    = 0-89181-602-X

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In basin depocenters, much of the stratigraphic record consists of deposits accumulated during relative lowstand of sea level. These lowstand deposits are separated by condensed intervals containing the distal aspects of the transgressive and highstand systems tracts. Because most of the section is claystone and silty claystone, fossil abundance patterns provide regionally applicable criteria for recognizing systems tracts within a depositional sequence. Upward-increasing fossil abundance suggests rising relative sea level with consequent fossil concentration due to decreasing sediment input. Upward-decreasing fossil abundance suggests falling relative sea level with consequent fossil dilution due to increasing sediment input. Because these strata are largely basinal depocenter deposits of lowstand and condensed section sedimentation, the falling and rising phase of relative sea level changes are correlated to the early phase of lowstand fall and the late phase of low-stand to transgressive rise, respectively.

In basin [[depocenter]]s, much of the stratigraphic record consists of deposits accumulated during relative lowstand of sea level. These lowstand deposits are separated by condensed intervals containing the distal aspects of the transgressive and highstand systems tracts. Because most of the section is claystone and silty claystone, fossil abundance patterns provide regionally applicable criteria for recognizing systems tracts within a depositional sequence. Upward-increasing fossil abundance suggests rising relative sea level with consequent fossil concentration due to decreasing sediment input. Upward-decreasing fossil abundance suggests falling relative sea level with consequent fossil dilution due to increasing sediment input. Because these strata are largely basinal depocenter deposits of lowstand and condensed section sedimentation, the falling and rising phase of relative sea level changes are correlated to the early phase of lowstand fall and the late phase of low-stand to transgressive rise, respectively.

==Example==

==Example==