It has no prerequisites and is not required for any other course. It can serve as an entry into the Geology major.
And the Spirit of God moved upon the face of the waters. Let there be a firmament in the midst of the waters, and let it divide the waters from the waters. And the evening and the morning were the second day.
And then were created: It is interesting to note that, according to the chapter Genesis, heaven and earth with the seas were created in one swoop at the very first step, yet again in the second and third day.
The cooling atmosphere The knowledge that the earth must once have been red hot, judged by lava spewing from volcanoes, made people think that the oceans must have originated from steam in the atmosphere.
As the world cooled, it rained for thousands of years until the oceans were formed, so they thought. The pull of gravity of this planet is just enough to keep an atmosphere together whose weight is no more than ten metres of water.
So even if the old atmosphere consisted entirely of steam, the oceans would have filled only to a mere ten metres, rather than Scientist estimate the amount of water escaping from the early hot planet at 1. Steam from the interior Today most authors believe that early steam from the hot mantle but already cool atmosphere, caused the oceans in the very early stages of the planet.
They reason from studies of chondrites space rocks in space that under compression, enough water could be released to form an ocean. Today one can observe the gases escaping from active volcanoes, and these too contain water.
In this scenario, the oceans would still be increasing in size, a gradual process that would never really end. But why did the continental crust expand suddenly about 3 eons ago? Debris from space From the ratios of certain elements, scientists now agree that earth and the other planets in our solar system were formed by accretion from interstellar or cosmic debris dustleft over from the explosion of a supernova star in our galaxy.
Look at the moon and its many craters, each a remnant of a collision with a large object. The sun gathered most of it, growing to a size sufficiently large to become a nuclear fusion reactor.
Our planet grew in size and started to heat up due to the falling apart radio activity of heavy elements and due to compression. At one stage the planet became just liquid enough for lighter materials to migrate to its surface, and heavy elements to migrate to its core.
Continents formed, and an ocean crust. Quite a reasonable idea, since the volume of the earth islarger than that of the ocean. But all the time that the earth formed, it was too hot for an ocean. In fact, the oldest rocks found are about million years My old Rocks from the moon Mywhereas the age of this planet is estimated at million years.
By the time the earth had cooled enough, most of the cosmic impact that formed it, had also ceased. Why is it that the only planet with life is also the only planet with an ocean? And why is it that other planets, that were formed in the same way as ours, do not have oceans?
Co-evolution of climate, oceans and life Independent scientist James Lovelock, as part of his Gaia hypothesis, made us look at the world as if it were a single organism.omics group has scheduled its , and international and scientific conferences, meetings, events, workshops and symposiums in america, europe, asia.
INTRODUCTION TO OCEANOGRAPHY GEOL TUESDAY/FRIDAY, HUNTER WEST In addition to providing a good introduction to aspects of the scientific world, it is a foundational course for Environmental Studies, Geography and BA/MA Earth the ocean.
Each case study highlights various content and themes within the discipline. Introduction to Oceanography and the Scientific Method I. Oceanography: Technically it means “mapping of the ocean”. a. Oceanography is the descriptive study of the ocean and the location and status of its physical, chemical, geological and biological systems.
Laboratory Exercise #6 - Introduction to Oceanography A. Introduction. Oceanography is obviously the study of the oceans. However, there are many different branches within the science of oceanography that draw knowledge and expertise from every major scientific discipline.
Laboratory Exercise #6 - Introduction to Oceanography A. Introduction Oceanography is obviously the study of the oceans. However, there are many different branches within the science of oceanography that draw knowledge and expertise from every major scientific discipline.
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