unit of geological time

См. также в других словарях:

• geological period — noun a unit of geological time during which a system of rocks formed ganoid fishes swarmed during the earlier geological periods • Syn: ↑period • Hypernyms: ↑geological time, ↑geologic time • Hyponyms: ↑ice age, ↑ …   Useful english dictionary

• Time — This article is about the measurement. For the magazine, see Time (magazine). For other uses, see Time (disambiguation). The flow of sand in an hourglass can be used to keep track of elapsed time. It also concretely represents the present as… …   Wikipedia

• Geological history of Earth — impacting the Earth in a glancing blow. [cite journal | last = R. Canup and E. Asphaug | title = Origin of the Moon in a giant impact near the end of the Earth s formation | journal = Nature | volume = 412 | pages = 708–712 | date = 2001 | url =… …   Wikipedia

• Unit of selection — A unit of selection is a biological entity within the hierarchy of biological organisation (e.g. genes, cells, individuals, groups, species) that is subject to natural selection. For several decades there has been intense debate among… …   Wikipedia

• Geological unit — A geological unit is a volume of rock or ice of identifiable origin and age range that is defined by the distinctive and dominant, easily mapped and recognizable petrographic, lithologic or paleontologic features (facies) that characterize it.… …   Wikipedia

• Geological history of India — The geological history of India started with the geological evolution of rest of the Earth i.e. 4.57 bya (billion years ago). India has a diverse geology. Different regions in India contain rocks of all types belonging to different geologic… …   Wikipedia

• Geologic time scale — This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga.[1] Other… …   Wikipedia

• Decimal time — French decimal clock from the time of the French Revolution Decimal time is the representation of the time of day using units which are decimally related. This term is often used to refer specifically to French Revolutionary Time, which divides… …   Wikipedia

• Portal:Time — 08:58, November 24, 2011 (UTC) (update) WELCOME TO THE TIME PORTAL Time …   Wikipedia

• Metric time — is the measure of time interval using the metric system, which defines the second as the base unit of time, and multiple and submultiple units formed with metric prefixes, such as kiloseconds and milliseconds. It does not define the time of day,… …   Wikipedia

• Solar time — On a prograde planet like the Earth, the sidereal day is shorter than the solar day. At time 1, the Sun and a certain distant …   Wikipedia