Sicily owes ita complex geological structure to a switch in tectonic regime from the Mesozoic to the Tertiary. A set of tectonic units outcrops in the northern portion of the island that originated during the Tertiary at the expense
Non-marine evidence for Paleozoic/Mesozoic Gondwana correlations: update in Gondwana Five. Selected papers and abstracts of papers.
Old correlations within and between Gondwana continents have been firmed up and new dispersal tracks linking Gondwana and USSR and China inferred. The evidence consists of accumulating Paleozoic/Mesozoic fossil conchostracan and palynomorph data
Mid-Mesozoic closure of Permo-Triassic Tethys and its implications
land during the Triassic. The Neo-Tethys may have opened partly as a back-arc basin over the Palaeo-Tethyan subduction zone and rotation of the Cimmerian continent may have been partially responsible for mid-Mesozoic block faulting in extra-Alpine
Lower Mesozoic position of southern New Zealand determined from paleomagnetism of the Glenham Porphyry, Murihiku Terrane, Eastern Southland in Gondwana Five. Selected papers and abstracts of papers.
Mesozoic ammonite faunas of Antarctica and the break-up of Gondwana in Gondwana Five. Selected papers and abstracts of papers.
While Greater Antarctica remained continental throughout Mesozoic time, the Antarctic Peninsula was partly covered by sea. Present data suggest that the break-up of Gondwana was initiated in the Middle to data Jurassic with the first significant
California ; Canyon ; Cenozoic ; Cretaceous ; Erosion rate ; Longitudinal section ; Mesozoic ; Palaeogeography ; Sierra Nevada ; Tectonics ; United States of America ; Vertical movement
and stream gradients) show that little or no uplift occured in the second half of the Cenozoic. Tectonics capable of raising the range occured in the Mesozoic era, most recently in the late Cretaceous. Uplift histories of other ranges need re-evaluation
Carbonate rock ; England ; Experimentation ; France ; Geophysics ; Limestone ; Mesozoic ; Portugal ; Salt ; Simulation ; United Kingdom ; Weathering
A total of 21 different types of British and European Mesozoic limestones have been subjected to simulated salt weathering using sodium sulphate with the following aims : assessment of the relative durabilities of different types of limestone
Australia ; Cenozoic ; Drainage network ; Geomorphology ; Mesozoic ; New South Wales ; Palaeogeography ; Sedimentary basin ; South Australia ; Tectonics ; Vertical movement ; Volcanism
provides evidence of variation in the location and extent of erosion in the highlands, and the timing of major changes in drainage direction, caused mainly by tectonic warping. The major rivers can be traced back to Mesozoic and even Permian precursors.
A record of appalachian denudation in postrift Mesozoic and Cenozoic sedimentary deposits of the U. S. Middle Atlantic continental margin in Appalachian geomorphology.
Australia ; Cenozoic ; Dating ; Duricrust ; Mesozoic ; Model ; Palaeogeography ; Palaeogeomorphology ; Palaeosurface ; Water ; Weathering
Surfaces and forms that closely simulate their earliest Cenozoic and Mesozoic precursors are preserved in many parts of the world. It is suggested that, in some circumstances, changes over time have been so slow that the essential character
Syn-orogenic extension has been recognised in Northern Sicily. Mesoscopic analysis has been carried out in three key areas, where folded-and-thrust Mesozoic-to-Tertiary rocks crop-out. The three examples are inherent to portions of tectonic units