Lithosphere

The crust will be the first destination on our Journey to the Center of the Earth tour. The crust will be our shortest part of the expedition, for it is only 16 kilometers thick -- 8 below the oceans, and 40 below the continents. Make sure to pack a hat and gloves, as well as flip-flops and sunscreen, because the crust’s temperatures range from whatever the temperature is on the surface of the Earth to 870 degrees celsius! The crust is mostly made up of solid granite and basalt (volcanic lava…

Question: Describe in detail the three theories that were the predecessors to plate tectonic theory. Provide evidence of how features of the surface support the current, theory of plate tectonics describing the ways the tectonic plates interact and the result of their interactions. The Continental Drift Theory The Continental Drift can help the surface support the current by plowing through ocean basins. It also did not include seafloor spreading or subduction. So, that did not cause an…

The plate tectonic theory was developed in the 1960’s and it is extremely important to have a fond understanding of as it is an explanation of the amazing scientific feats that have happened and are still happening in our world today. For example, it explains why the land we stand on is in its place, how volcanoes, tsunamis and mountains are formed and many more scientific phenomenon. This theory is that the outer shell of Earth is separated into multiple plates, which are floating on the mantle…

Millions of years ago our Earth was called Pangea. This was the name for the Earth as it was when basically all the land/continents were attached as one giant portion of land surrounded by sea. As millions of years passed, the portion of land known as Pangea began to spread apart into several portions of land until it could no longer be called Pangea. Finally today, we know Earth as being a vast planet with several continents that are a result of the spread of Pangea. This is understood to be…

How do scientists known what the center of the earth is? There 4 ways how scientist found out about the center of the earth ( aka inner core and outer core). Answer 1: Geologists hypothesize that the Earth's center is composed of predominantly iron. The outer portion of the center, known as the "outer core", is thought to be liquid iron. While the interior portion of the center, known as the "inner core" is thought to be solid iron. Answer 2: The main evidence for the structure of the Earth…

four spheres responsible for life on earth: lithosphere, atmosphere, hydrosphere and biosphere; and their interaction with each other is called Geosphere (Fig. 1.). Another sphere that isn’t included among the rest for its different property is Pedosphere. Pedosphere is basically the interaction between the lithosphere, atmosphere, hydrosphere and biosphere. We can even say pedosphere is the layer that lies below the biosphere and above the lithosphere and hydrosphere which is the soil. Not…

1. Outline Alfred Wegener’s hypothesis of Continental Drift Alfred Wegener believed all Earth’s continents were once joined together but gradually moved apart for millions of years by cracking and dividing due to slow currents of magna beneath it. 2. Cut out the attached Gondwana Jigsaw along the dotted lines. Fit the continents together and glue them in position. Hint, refer to other sheets for map. 3. Describe the evidence for Continental drift. All the continents fit together much like…

to live on earth. Just imagine where we would be without the atmosphere. There would be no life on earth. First, one of the most important spherical region is the geosphere. Also known as the lithosphere. The lithosphere is the outer layer of the earth. The outer layer is about 75km thick. The lithosphere is very important because this is where us living things inhabit and live on. It provides a stable source of nutrients for botanical life.If it weren't for the tectonic plates…

element neodymium. By measuring the relative abundances of the isotopes in a rock, geochemists can tell whether the rock originated in the mantle lithosphere -- the slice of the North American jelly sandwich that, according to Bird, the Farallon Plate had dragged away. When the chemists checked the neodymium, however, the rocks proclaimed that the mantle lithosphere is very much intact. The evidence was compelling; many of Bird's colleagues abandoned his version of the Laramide orogeny. "Peter…

environment (the Lithosphere, Atmosphere, Hydrosphere, and Biosphere), while they differ significantly. Although the two are located in different countries, the four spheres contribute to how distinct each country’s geography is and how they impact everyday life. To begin, the country of Columbia is located towards the upper half of the South American continent, bordering the countries of Venezuela, Peru, Ecuador, Brazil, Columbia, and the Pacific Ocean along with the Caribbean Sea. The…