geological time


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Noun1.geological time - the time of the physical formation and development of the earth (especially prior to human history)geological time - the time of the physical formation and development of the earth (especially prior to human history)
time - the continuum of experience in which events pass from the future through the present to the past
eon, aeon - the longest division of geological time
geological period, period - a unit of geological time during which a system of rocks formed; "ganoid fishes swarmed during the earlier geological periods"
geological era, era - a major division of geological time; an era is usually divided into two or more periods
epoch - a unit of geological time that is a subdivision of a period and is itself divided into ages
References in classic literature ?
"I will add," I continued, "that a similar barrier exists between Gibraltar and Ceuta, which in geological times formed the entire Mediterranean."
Man only came into being yesterday so far as geological times goes.
Principal investigator, Professor Hurst explains: 'Evolution has historically been thought of as a slow process, happening over geological time periods.
Researchers compiled data on the temperatures and depths at which the metamorphic rocks formed and then evaluated how these conditions have changed through geological time.
Greg Dipple has shown that silicate mineral residue, when exposed to the atmosphere, absorbs CO[sub.2] and converts it to carbonate minerals, and the CO[sub.2] would remain locked in the carbonates over geological time scales.
"Mesozoic Calendar" includes spreads showing the positions of the continents at different geological time periods and reconstructions of creatures from each period.
The aim of the research was to test the hypothesis that the evolutionary importance of the non-biological environment had declined through geological time.
The climate has always fluctuated over geological time-scales; during the last Ice Age there wasn't much countryside in Britain anyway, and before that, in deep geological time, as what became Britain wandered across the globe on tectonic plates, the coal, gas and oil measures were laid down at a time when carbon dioxide levels were vastly higher than they are now.
This is the first formally ratified marker of a geological time period in India.
But the landscape is older than people and geological time is mindboggling.
RE: reader Stewart Mann's letter condemning the children who walked out of school in protests last week, as a retired geophysical technician I am aware of there having been many occurrences of climate change throughout geological time.
The researchers conjectured it was at this point in the geological time scale--or sometime shortly after--that the inner core began to form, giving strength to the geodynamo.

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