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Hace 3 días · We further thank B. Diekmann for commenting on an earlier version of this manuscript and S. Schumacher for PANGAEA data curation. ... G.K. and J.P.K. carried out the grain-size and -shape analyses. J.T. led the CT scanning, processing, and visualization. ... Stratigraphic potential of Bolboforma significantly increased by new finds in the North ...
Hace 4 días · NASA scientists have spotted unusual shapes in the Earth's ionosphere, hundreds of miles above the Earth's surface. The ionosphere stretches from 50 to 400 miles above the planet and marks the...
Hace 4 días · The NAHP is characterized by the occurrence of extremely strong and variable Nile floods. In particular, the dominance of thick flood layers between 9.2 and 8.6 kyr bp (Fig. 2a) depicts a period ...
Hace 5 días · Fluid dynamics play a major role in the development of thrust in a rocket engine, and in the generation of aerodynamic drag for flight within the atmosphere. To better understand these interactions, we need to know some things about gases.
Hace 4 días · This feeds volcanism. The cycle of water into and out of the mantle is also involved in generating new continental crust. A clue to the dominance of erosion is that the continent edges are almost exactly at sea level since erosion is more effective under air than under the ocean surface. Figure 5.4 sketches all the factors affecting continents.
Hace 5 días · Three principal factors control the features of South America’s climate. The first and most important of them are the subtropical high-pressure air masses over the South Atlantic and South Pacific oceans and their seasonal shifts in position, which determine both large-scale patterns of wind circulation and the location of the rain-bearing ...
Hace 3 días · Pangaea’s large size limited the stabilizing effect of the global ocean; its continental climate was highly seasonal, with very hot summers and cold winters. Jurassic 145.5 - 199.6 ma. By the beginning of the Jurassic period, the supercontinent Pangaea had split into two landmasses, Laurasia to the north and Gondwana to the south.
