Christian Hill 8/21/2013 PHYSICAL GEOLOGY CHAPTER 1 – STUDY GUIDE TERMS- Define Physical geology- studies the earths materials‚ processes and structures within plate tectonics framework‚ and understand the processes that operates beneath and upon its surface. Historical geology- examines the origin of the Earth and how Earth changed through time. Catastrophism- meaning the Earth’s landscape was shaped mainly of great catastrophes. Uniformitarianism- "the present is the key"‚ the
Premium Plate tectonics Earth Geology
plate tectonics; which is the study of the plates that makeup the lithosphere‚ their movements and how these movements has influenced changes in the surface’s topography (Strahler‚ 2011‚ 389). These plates either sink in to the mantle creating subduction zones which occurs at convergent plate margins or move away from each other causing magma to rise and spread this occurs at divergent plate margins. These plate margins create various relief elements such as volcanoes‚ Fold Mountains‚ sea floors and
Premium Plate tectonics
more fascinating to me. There are many amazing things about the ocean and what lives in it some things that are amazing to me are that Earth is the only known planet or moon to have large bodies of liquid water on its surface. Our planet lies in the zone that’s not too hot‚ not too cold and with enough atmospheric pressure to prevent liquid surface water from evaporating into space. Although scientists and explorers don’t know of any other planets or moons with liquid water oceans‚ it’s likely that
Premium Ocean Water Oceanography
Destructive boundaries are between two plates that are colliding. One type is where the oceanic plate collides with a less dense continental plate. As the oceanic plate is subducted into the upper layers of the mantle‚ various features form. Subduction causes friction to be created by the descending slab of ocean floor‚ generating a lot of heat leading to a partial melting of a plate. The basaltic magma from this old ocean floor is less dense than the magma of the mantle and rises through fissures
Premium Plate tectonics
Sound‚ 75 miles east of Anchorage. This earthquake was and still is the second larges earthquake ever recorded (Christensen). The plates involved In this major earthquake were the Pacific plate and North American plate. This subduction zone is know as Aleutian-Alaska megathrust zone (Sokolowski). This region was known for its active plate tectonics‚ but this earthquake did come as a surprise to the public and scientists in the area. About 200-250‚000 kilometers squared of the earths crust were vertically
Free Earthquake Plate tectonics
1. A ________ is a well-tested and widely accepted view that best explains certain scientific observations. Answer | | hypothesis | | | generalization | | | law | | | theory | 2 points Question 2 1. What are the basic differences between the disciplines of physical and historical geology? Answer | | physical geology is the study of fossils and sequences of rock strata; historical geology is the study of how rocks and minerals were used in the past |
Premium Plate tectonics
In the early 1960s‚ the emergence of the theory of plate tectonics started a revolution in the earth sciences. Since then‚ scientists have verified and refined this theory‚ and now have a much better understanding of how our planet has been shaped by plate-tectonic processes. We now know that‚ directly or indirectly‚ plate tectonics influences nearly all geologic processes‚ past and present. Indeed‚ the notion that the entire Earth’s surface is continually shifting has profoundly changed the way
Premium Earth Climate Natural environment
The subduction zone is defined as an area where one plate tectonic with higher density overlays the plate with the lowest density. As the underlying plate descends into the magma‚ pressure accumulates and the magma is then pushed upwards towards the surface where
Premium Ancient Egypt Iron Egypt
more erosion literally combined the volcanoes into one mass of rocky land * Step 4: the mass of land is now a hard smooth plate‚ the Canadian Shield * Step 5: the Atlantic plate crashed into the east side of Canada and the area of subduction formed the Appalachian mountains * Step 6: erosion moved sand and dirt into the pacific ocean and the atlantic ocean * Step 7: the Pacific plate collided with the west side of Canada‚ forming the Rocky Mountains * Step 8: the
Premium Plate tectonics Earth Water
Tsunamis A tsunami is a series of waves created when a body of water‚ such as an ocean‚ is rapidly displaced on a massive scale. Earthquakes‚ mass movements above or below water‚ volcanic eruptions and other underwater explosions‚ landslides‚ large meteorite impacts and testing with nuclear weapons at sea all have the potential to generate a tsunami. The effects of a tsunami can range from unnoticeable to devastating. The term tsunami comes from the Japanese words(津波、つなみ) meaning harbor ("tsu"‚
Premium Tsunami 2004 Indian Ocean earthquake