scholarly journals Measured stratigraphic sections of Lower Cretaceous Blackleaf Formation and lower Upper Cretaceous Frontier Formation (lower part) in Beaverhead and Madison counties, Montana

1985 ◽  
Author(s):  
T.S. Dyman
1891 ◽  
Vol 8 (10) ◽  
pp. 456-458 ◽  
Author(s):  
A. J. Jukes-Browne

Until recently no outcrop of the Vectian or Lower Greensand was known to occur between Lulworth on the coast of Dorset and the neighbourhood of Devizes in Wiltshire. It was supposed that, with the exception of a small area of Wealden in the Vale of Wardour, the whole of the Lower Cretaceous Series in Dorset and South Wilts was concealed and buried beneath the overlapping Upper Cretaceous strata. A recent examination of this district however has revealed two areas where the Vectian sands emerge from beneath the Gault. One of these has already been indicated in the pages of the Geological Magazine; the other is the subject of the present communication.


1964 ◽  
Vol S7-VI (3) ◽  
pp. 305-308
Author(s):  
Jean Claude Griffon ◽  
J. Magne ◽  
Jacques Sigal

Abstract The limestone dorsal of the northern part of the Rif mountains near Tetuan, Morocco, exposes Permian clastics, Triassic dolomite, Jurassic and lower Cretaceous limestone, upper Cretaceous to Eocene marl, transgressive upper Eocene conglomerate, and Oligocene flysch. The microfauna of the upper Cretaceous and the Paleogene formations are particularly useful in correlations. Major tectonic movements occurred in the Miocene.


Sign in / Sign up

Export Citation Format

Share Document