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Geoscience: Home

What is Geoscience

Geoscience is the study of the Earth - its oceans, atmosphere, rivers and lakes, ice sheets and glaciers, soils, its complex surface, rocky interior, and metallic core. This includes many aspects of how living things, including humans, interact with the Earth. Geoscience has many tools and practices of its own but is intimately linked with the biological, chemical, and physical sciences.

Geoscience investigates the past, measures the present, and models the future behavior of our planet. But it also involves the study of other planets, asteroids, and solar systems, both to better understand the Earth and to expand our knowledge of the universe.

Petroleum geology is the study of origin, occurrence, movement, accumulation, and exploration of hydrocarbon fuels. It refers to the specific set of geological disciplines that are applied to the search for hydrocarbons(oil exploration).

Petroleum geosciences include the exploration and recovery of oil and gas. Hydrocarbons are formed through geological processes in the underground. In the exploration phase, geophysical methods are used, mainly seismology. In order to prove deposits, wells must be drilled. When a commercial reservoir has been proven, the reservoir and production engineers take over and plan and carry out the recovery of oil and gas. Petroleum geosciences are therefore composed of general natural science, engineering sciences and computer technology. CO2 emissions from the petroleum industry and from society in general pose a major threat to the environment. Underground CO2 deposits are an important contribution to reduce emissions, perhaps in combination with injections into the oil reservoirs to improve the recovery factor. The development of new knowledge and technology in this field is also an important element within petroleum geosciences.

Subject Classification for Geoscience

Subject Class/Call Number
Geology QE1-996.5
General. Including geographical divisions QE1-350.62
Mineralogy QE351-399.2
Petrology QE420-499
Dynamic and structural geology QE500-639.5
Volcanoes and earthquakes QE521-545
Structural geology QE601-613.5
Stratigraphy QE640-699
Paleontology QE701-760
Paleozoology QE760.8-899.2
Paleobotany QE901-996.5
Mining engineering. Metallurgy TN1-997
Mineral deposits. Metallic ore deposits. Prospecting TN263-271
Practical mining operations. Safety measures TN275-325
Mine transportation, haulage and hoisting
Mining machinery
Ore deposits and mining of particular metals TN400-580
Metallurgy TN600-799
Nonmetallic minerals TN799.5-948
Building and ornamental stones TN950-997
Chemistry QD1-999
General. Including alchemy QD1-65
Analytical chemistry QD71-142
Inorganic chemistry QD146-197
Organic chemistry QD241-441
General. Including nature conservation, 
geographical distribution
Geophysics. Cosmic physics QC801-809
Geomagnetism QC811-849

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