PETROLEUM
in scheme: sciencekeywords
definition: Petroleum is a naturally occurring flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid organic compounds, that are found in geologic formations beneath the Earth's surface. The name Petroleum covers both naturally occurring unprocessed crude oils and petroleum products that are made up of refined crude oil.
change note: 2013-03-11 12:41:33.0 [tbs1979] update Definition (U.S. Environmental Protection Agency); update Definition (Petroleum is a naturally occurring flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid organic compounds, that are found in geologic formations beneath the Earth's surface. The name Petroleum covers both naturally occurring unprocessed crude oils and petroleum products that are made up of refined crude oil.);
change note: 2013-03-05 10:15:04.0 [tbs1979] Insert Concept add narrower relation (PETROLEUM [44d0ad8f-fe22-4d17-bc47-c0b728a82baf,61687] - PETROLEUM VERTICAL/GEOGRAPHIC DISTRIBUTION [f9e3595d-29b6-462a-8eb6-a06e5a02b081,82913]);
type: Concept

MICROFOSSIL
type: Concept

PETROLEUM VERTICAL/GEOGRAPHIC DISTRIBUTION
type: Concept

EARTH GASES/LIQUIDS
type: Concept