366
-r
I
I
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·-··-··-··-·· -··-·-�
3 8 °
Fig. 11.26. Evolution of fluvial dispersal systems in Utah
from the mid-Campanian (Castlegate Formation, left) to
the late Campanian (Price River, Tuscher Formations,
righ t), based on analysis of source terranes and paleocurrents (heary arrows). The mid-Campanian pattern is
typical of transverse-oblique drainage from a fo reland
Tectonic Control of Fluvial Sedimentation
108"
fold-thrust belt. The late Campanian pattern indicates the
development of basement uplifts within the basin and
major reorganization of drainage patterns. Stratigraphic
sequences formed in the basin clearly were strongly influenced by tectonism. (Lawton 1986b, reprinted by permission)
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