When people think of geology, they usually think of rocks and fossils. However, geology is actually a very large field of study. The knowledge of geologists ranges from rocks and fossils to the moon and other planets (Hammonds 7-8). Geologists use a variety of subjects in their work, but the sciences and math are the most important. Some of the sciences geologists study are physics and chemistry (12). English is also a subject that geologists use when communicating with other scientists, the media, and the public (12) . Because of these tasks, it is important for geologists to have a wide knowledge of these different subjects.
Besides these subjects, there are some things that every geologist should know. Most of these things are laws and rules about how the Earth is made up and how it works. These include chemical compositions, structures, and properties of a substance (Abilities from jobs.virginia.gov 1). Knowing what the magnetic, electrical, and gravitational forces are is also essential (JIST 60). Geologists have to know the methods for describing landforms, the sea, and air masses (1). This is helpful when working in the field. Geologists can describe what they see better and present it to others in a clearer way. As with anything, knowing the history of the study is also important. Geologists need to know historical events, their causes, indicators, and impact (1).
The field of geology has many different branches. Some of these areas have hardly anything in common. The one thing that they all include, though, is that each one concentrates on some part of the Earth, its makeup, or that of other planets. Mineralogy, the study of minerals above the Earth and in its crust, is different from Petrology, the st...
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...ogists in general. The median for Project Geologists is just over $80,000 (1). Geologists in the United States make a median of $65,000. Project Geologists in the U.S.A. make about $80,000 (1). Geologists working in South America also get a good pay (1). Their pay competes with the United States and Canada for senior geologists. (1).
Geology is a great profession because it has so many areas and branches. There is something for anything that you are interested in regarding the Earth and/or it's history. Geologists get to travel to cool places and see cool things. They are paid to spend time in remote and beautiful locations. They are not stuck in one place, because they work in the field, the laboratory, and the office. Being a geologist comes with a lot of work and responsibility, but there are so many rewarding aspects that it is completely worth it.
Herndon J. M, 2005, Current Science, Scientific Basis of Knowledge of Earth’s Composition, 88, 1034-1036)
One of the first people to study the xenoliths at El Joyazo was Zeck (1970); Zeck hypothesised that the xenoliths and dacitic lava of El Joyazo were derived syn-genetically from a semi-pelitic rock through anatexis. The protolith rock was thought to be separated into anatectic restites, represented by Al-rich xenoliths, and anatectic melt, represented by the dacitic lavas. The xenoliths were classified into three types: (1) almandine-biotite-sillimanite gneiss, (2) quartz-cordierite gneiss and (3) spinel-cordierite rock. Types 1 & 2 were interpreted as restite material as their structure corresponded to that of migmatitic restite, and type 3 as re-crystallised restite. It was suggested that this re-crystallisation would have taken place after that anatexis that produced types 1 & 2. Zeck described the lava, based on chemical composition, as an almandine bearing biotite-cordierite-labradorite rhyodacite. The xenoliths were described as well rounded fragments up to 40cm in diameter. The xenoliths were said to show a well developed foliation defined by biotite and sillimanite, with the exception of the spinel-cordierite rock, which exhibited a granoblastic texture. It was also noted that quartz is almost completely absent from these rocks with the exception of small, rare armoured relicts.
Basically these are the general features of the Earth and I am going to give you
Bibliography Wikipedia. The World of the. Gould, Stephen. Jay. Charles Lyell, Principles of Geology.
Mars is the planet that is the closest geologically to our own. Still we know little about the planet. All the information that we have is from what we see. We can speculate about the geology of the planet but we will never know for sure what the planet is really made of until we physicallygo there. The information is all from NASA sites or NASA related sites.
Having loved to study rock fragments under her microscope as a child, Tarbell especially enjoyed showing her students the scientific process in lab work. From science, she learned the importance of gathering sound facts before drawing conclusions.
Minerals play an important role in our day-to-day life but we often not contemplate how the minerals are obtained. Minerals are scattered all over the world just like any other resources. Due to the natural processes of magma flow, hydrothermal gradients, sedimentation, and evaporation, Minerals are concentrated in various areas of the Earth’s crust. Obtaining these minerals for human use involves four general steps:
The way that these three components interact is one of the main focuses of petrologists and volcanologists.
Remember when it was published that Pluto is no longer considered as a planet? I remember that our physics teacher was really angry about the fact that in space agency discarded the fact that was known and generally accepted by the general public. In my essay I will discuss how the “old” knowledge was affected when there were new aspects of particular knowledge discovered. I will focus on two areas of knowledge: The natural sciences and the arts and I will ask myself: To what extend can new knowledge contributes to abundance of old, generally recognised facts?
One very important piece of information is that gemstones and crystals are grown during the cooling, formative stages of Earth’s development and so it has lead me to the conclusion that they are gifts from nature. According to physics, gemstones and crystals consist of natural balances and solid sta...
So far in science class we have learned about astronomy, geology, oceanography, and the rock cycle. Astronomy is the study of the universe .Geology is the study of earths physical features. And oceanography is the study of the earths ocean. The rock cycle is the study of rocks and how they form.
...roups that have been important to astronomy are the Akkadians, Egyptians, Chinese, Polynesians, and the Greeks. They used astronomy for navigation at sea, creating accurate calendars, making new inventions, and many more things! Some modern jobs in astronomy include Educational, Private industries, National Observatories and Laboratories. Also, some technical advances because of astronomy include many telescopes, tracking programs used by FedEx, and IRAF which is used to analyze computer systems. Even though astronomy is an incredibly interesting field, there are minimum job opportunities. Some of the jobs are included in the following fields: education, national observatories and laboratories, or in private industries. Astronomy has been the key to unlocking many new inventions and by connecting things from the past, to the present, and going into the future.
Plate tectonics is the theory that landmasses on tectonic plates are in slow constant movement due to convection currents in the mantle. Plate tectonics, or the movements of plates above the lithosphere (the most upper layer of earth's crust) can cause divergent, convergent,and transform boundaries.A boundary the way two tectonic plates collide. is Continental plates are plates that the continents are formed on. Oceanic plates are plates that the ocean covers, and the oceans form on top of these plates. Convergent boundaries and divergent boundaries are ways that these oceanic and continental plates interact with each other. Landforms are formed at boundaries. The landforms formed at boundaries depends on the type of plates that collide, and
Earth system refers to the earths interacting physical, biological, and chemical processes. The system consists of land, oceans, atmosphere and poles. The earth system has four spheres, including the geosphere, the hydrosphere, the atmosphere, and the biosphere. The geosphere refers to the solid parts of the earth system, including earth’s rocky crust, mantle, and the metallic core. Within the geosphere is the lithosphere, which only refers to the uppermost layers of solid earth. The uppermost layers of solid earth are the oceanic and continental crust rocks. Just below the crust is the mantle, which is composed mostly of magnesium and iron silicate minerals. The mantle accounts for about 2/3 of the
There are lots of environmental issues going on globally. The earth faces problems such as pollution, global warming, waste disposal, and loss of biodiversity. These are just a small amount of issues out of the so many. These environmental problems pose an abundant amount of risk to the health of humans and animals. There needs to be a solution to all these problems and that is by informing others, so that way everyone can make the environment a better place.