Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9526142 | Sedimentary Geology | 2005 | 25 Pages |
Abstract
To explain the organic contrast between both environments a depositional model has been developed which is based on limited water exchange between both depositional settings. The main factor which has determined black shale sedimentation is the restricted water circulation related to the presence of isolated depositional environment during Atlantic Ocean opening. Compared to present upwelling zones, the palaeoproductivity in the studied area was relatively moderate during Cenomanian-Turonian and seems not to be the only determining factor of organic matter accumulation.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Earth-Surface Processes
Authors
P. Nzoussi-Mbassani, N. Khamli, J.R. Disnar, F. Laggoun-Défarge, M. Boussafir,