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Carbonate platform‐to‐basin correlation by means of grain‐composition logs: an example from the Vercors (Cretaceous, SE France) by ARNOUT J. W. EVERTS; WOLFGANG SCHLAGER; JOHN J. G. REIJMER is a Earth and Planetary Sciences article available to read on EtoBox.

What is Carbonate platform‐to‐basin correlation by means of grain‐composition logs: an example from the Vercors (Cretaceous, SE France) about?

Quantitative logs of grain composition for several sections of platform top and flank of the Vercors carbonate platform (Early Cretaceous, SE France) provide platform‐to‐basin correlation with a resolution of a few metres over an area of 70 km^2^. Grain composition was determined by point‐counting thin sections. Point‐count groups that characterize palaeoenvironmental realms (i.e. open sea, platform margin) were defined for the platform–basin trajectory. Grain‐composition logs revealed marked peaks in the number of open‐sea biota and peaks in ooid abundance. The peaks in open‐sea biota correspond to back‐stepping intervals and deepening upward facies successions at the platform margin. These peaks probably relate to incipient drowning of the platform and may be used to delineate marine‐flooding surface‐bounded sequences. Peaks in ooid occurrence show no relationship with the progradation, aggradation or retreat of the platform. Apparently, the oolitic sands were not part of a facies tract that shifted up and down the platform. Instead, they represent a depositional mode that was either on or off. Times of prolific ooid production and shedding probably occurred during wide but shall

Who reads Carbonate platform‐to‐basin correlation by means of grain‐composition logs: an example from the Vercors (Cretaceous, SE France)?

Author

ARNOUT J. W. EVERTS; WOLFGANG SCHLAGER; JOHN J. G. REIJMER

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 1469-3496)

Published

1999

Language

EN

Field

Earth and Planetary Sciences (Physical Sciences)