Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Alastair H. Ruffell"'
Autor:
Alastair H. Ruffell
Publikováno v:
Proceedings of the Geologists' Association. 103:273-291
Autor:
Alastair H. Ruffell, Paul B. Wignall
Publikováno v:
Proceedings of the Geologists' Association. 102:149-152
Autor:
Alastair H. Ruffell, David J. Batten
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 80:197-212
Evidence is presented from nine areas in western Europe (Speeton, Yorkshire; southern North Sea; Channel and Weald Basins, southern England; Jeanne d'Arc, Lusitanian and Aquitanian Basins of the North Atlantic continental margins; Lower Saxony Basin,
Autor:
Alastair H. Ruffell, Paul B. Wignall
Publikováno v:
Journal of the Geological Society. 147:365-371
A sudden change from humid style to semi-arid style deposition markedly affected the accumulation of the Upper Kimmeridge Clay in southern England. Many of the changes appear to be related to a change in sedimentation rate at this time. Thus softgrou
Autor:
Michael J. Simms, Alastair H. Ruffell
Publikováno v:
Geology. 17:265
Although the Late Triassic was a time of widespread aridity, evidence exists for a significant increase in rainfall during the middle to late Carnian. Upper Triassic playa-lake sediments were interrupted by late Carnian fluviatile sandstones with ero