Petroleum
Some geologists believe petroleum to be of inorganic origin.
But most geoscientists consider petroleum to be of organic origin. It results from the decomposition of organic matter (plants and animals), which has been deposited and buried over hundreds of millions of years ago. Petroleum forms in marine sedimentary rocks that contain organic remains. This material lithifies into a source rock, and the increased pressure, high temperature, bacteria, chemical reactions convert the organic material into hydrocarbons.
Petroleum is an organic substance consisting of a mixture of hydrocarbons that are made up of the two chemical elements carbon and hydrogen. Oxygen, sulphur, and nitrogen are also usually found in petroleum composition.
Petroleum is not found where it was generated, but instead may have migrated from its source rock. Under the pressure differential petroleum moves to zones of increased permeability to a reservoir rock and accumulates there. Oil pool is a porous rock saturated with oil and covered with an impermeable layer.
The term “petroleum” includes both liquid crude oil and gaseous natural gas. Crude oil often has more or less natural gas associated with it, but in some places gas may exist alone.
Investigation into petroleum genesis is not purely academic exercise. When we can determine under what conditions deposits of oil are formed, we can confine our exploration for oil to places that have these conditions and traps of oil at the proper time.
Geoecology
The word “geoecology” is derived from the Greek “ge” meaning “earth”, “oikos” meaning “house”, and “logos” meaning “study” and was first used by Carl Troll in 1930s.
Geoecology deals with ecology of the geological environment. It studies the natural connections of geological environment with the other components of the natural environment - atmosphere, hydrosphere, biosphere. Geoecology assesses the impact of human activities in all diverse forms and is considered to be the science at the junction of geology, geochemistry, biology and ecology.
Geoecologists aim at a deeper complex understanding of environmental functions and processes, related to finding solutions for anthropogenically-induced issues.
Geoecologists work in the industry, regional or federal authorities, in universities and research institutes, and as freelance consultants or engineers.
Broad education combined with high-quality specialized training allows me to work in fields such as petroleum industry, environmental analytics, waste disposal, contaminated sites remediation as well as agriculture and forestry.