100 Greatest discoveries Earth science

100 Greatest discoveries Earth science

http:// FACEBOOK /ScienceReason … The American Geological Institute (AGI) is a nonprofit federation of 45 geoscientific and professional associations that represents more than 120,000 geologists, geophysicists, and other earth scientists.


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Founded in 1948, AGI provides information services to geoscientists, serves as a voice of shared interests in our profession, plays a major role in strengthening geoscience education, and strives to increase public awareness of the vital role the geosciences play in society’s use of resources, resilience to natural hazards, and the health of the environment.

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Earth science (also known as geoscience, the geosciences or the Earth sciences), is an all-embracing term for the sciences related to the planet Earth. It is arguably a special case in planetary science, the Earth being the only known life-bearing planet. There are both reductionist and holistic approaches to Earth science.

There are four major disciplines in earth sciences, namely geography, geology, geophysics and geodesy. These major disciplines use physics, chemistry, biology, chronology and mathematics to build a quantitative understanding of the principal areas or spheres of the Earth system.

The following fields of science are generally categorized within the geosciences:

– Geology describes the rocky parts of the Earth’s crust (or lithosphere) and its historic development. Major subdisciplines are mineralogy and petrology, geochemistry, geomorphology, paleontology, stratigraphy, structural geology, engineering geology and sedimentology.

– Geophysics and Geodesy investigate the figure of the Earth, its reaction to forces and its magnetic and gravity fields. Geophysicists explore the Earth’s core and mantle as well as the tectonic and seismic activity of the lithosphere.

– Soil science covers the outermost layer of the Earth’s crust that is subject to soil formation processes (or pedosphere). Major subdisciplines include edaphology and pedology.

– Oceanography and hydrology (includes limnology) describe the marine and freshwater domains of the watery parts of the Earth (or hydrosphere). Major subdisciplines include hydrogeology and physical, chemical, and biological oceanography.

– Glaciology covers the icy parts of the Earth (or cryosphere).

– Atmospheric sciences cover the gaseous parts of the Earth (or atmosphere) between the surface and the exosphere (about 1000 km). Major subdisciplines are meteorology, climatology, atmospheric chemistry and atmospheric physics.

– A very important linking sphere is the biosphere, the study of which is biology. The biosphere consists of all forms of life, from single-celled organisms to pine trees to people. The interactions of Earth’s other spheres – lithosphere/geosphere, hydrosphere, atmosphere and/or cryosphere and pedosphere – create the conditions that can support life.

• http://en.wikipedia.org/wiki/Earth_science
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20 thoughts on “100 Greatest discoveries Earth science”

  1. This is officially the BIGGEST turn on I have ever received from planet earth. I came for days, and won't stop beating my fabulous meat until either my little pee pee stops working, or my computer breaks. Damn… but really… I jacked off to this shit. 10/10 would fuck again. Thanks for the sweet, sexy, and sassy content FFreeThinker! <3

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  2. I am considering getting a bachelor's degree in Earth Sciences because I find it interesting, but I would like a job where I can either work in a lab or an office, and not be obligated to travel or do field-work. I know it's a pretty versatile degree, so I'm hoping there are a few careers that fit my needs? Thanks.

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  3. Maybe the rotation is a direct indication of what Earth Science is all about. To look back and recognize changes that the earth has made over time. So it's backwards rotation is a metaphor to simulate reversing the process of change in earth. You just didn't get it. You recognized something that most people wouldn't see but didn't think further to the possible why.

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  4. Evolution is based on naturalism (belief that nature is all that is). Naturalists use logic and reason to support their theory. But there is a problem. Logic isn't part of nature. You cant point your telescope and see a law of logic. They are immaterial, universal, invariant, & abstract entities that govern all possible conceptual relationships. So, the naturalist is trying to use something that cant exist to support his position. The fact that he is able to make an argument proves he is wrong.

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