Currents in the Earth's System

The heat generated by the radioactive decay of elements deep in the earth creates magma (lavas) in the aesthetic ring

The aesthetics area (70 - 250 km) is part of the mantle and the middle zone of the earth is 2900 km. In contrast to the harder lithosphere, the outer shell (0 - 70 km) of the earth contains the continental crust (made of dense granite) and oceanic crust (dense basalt). Rigid plate

Large convection in the atmosphere conveys heat to the surface where the low density magma separates the plate at the diffusion center and creates different plate boundaries.

When the plate leaves the center of diffusion, the plate is cooled and high density basalt which constitutes the oceanic crust is consumed in the oceanic groove / subduction zone. The crust is recycled back to the aesthetic circle

Since oceanic plates are more dense than continental plates, as the two plates converge, the oceanic plate sank below the continental plate. Subduction zones and grooves are tapered. Collision of the plate usually accompanies earthquakes and volcanoes

The teacher is asked to draw a change in the heat distribution from the equator to the pole, paying attention to the difference between the incident angle and the latitude and the effect this has on the heating

This causes a discussion and spark of multiple current / batteries driven by a non-vertical heating drive current (by generating a high pressure system and a low pressure system by rising and falling air mass)

Focus: If the hydrosphere is a closed system with only external heat from the sun, what kind of simple temperature pattern do you expect to see in the ocean basin?

There are two large convection units between the equator and the pole because the temperature is high in the equator and the temperature is low in the polar.

Focus: How does this simple basin model explain the actual convection unit in the ocean-atmosphere system?

Current research on the Earth and the solar system clearly shows that the crash case is an obvious part of the present and the past. In July 1994, the multiple effect of the comet against the Jupiter - Comet Levy 9 (Spencer and Mitton, 1995) provided a wonderful demonstration of the whole world even after 4.5 by the formation of the solar system, space bomb processing It was still in progress. The catastrophic influence of the influence of Jupiter shows a graphical and annoying example. It can happen if a similar object collides with the earth.

Several features of the current solar system indicate that the affecting events - whether actual or potential - are part of the current state of the Earth. (1) tens of thousands of the Earth in the solar system, perhaps millions of random moving kilometers objects some of which may collide with the Earth in the future; (2) small external objects collide constantly with the Earth and larger objects Have conflicted recently. The earth is accompanied by many other solids in the solar system. In addition to planets and satellites, the solar system contains a number of smaller universe fragments ranging from microscopic dust particles to objects of size tens of kilometers. And they each circle the sun. Collision events in the range of several tens of meters to several tens of kilometers can distinguish between two objects, asteroids and comets.

In the early days of our solar system history, Mars has become a much loved life than the Earth. As the planet forms, there are plenty of interplanetary exchange substances. As these objects pass through the solar system, a large amount of ice and rocks are drawn toward the planet of the interior rock and they are blown into organic fragments. On the surface of Mars, the resulting heat and pressure of the impact catalyze many amino acid reactions that fuse carbon and other basic elements to form more complex molecules. These global impacts evaporate frozen comets filled with organic peptides and form storm clouds in vast areas of the Earth.