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Archaean   Listen
adjective
Archaean  adj.  Ancient; pertaining to the earliest period in geological history.






Collaborative International Dictionary of English 0.48








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"Archaean" Quotes from Famous Books



... the Nascaupee River flows through an ancient valley, which is from a few hundred yards to a mile wide and cut deep into the old Archaean rocks, affording an excellent example of river erosion. The banks are of sand, and in some places clay, extending back to the foot of the precipitous hills. Apparently the ancient river valley has been partly filled with drift, down through which ...
— The Long Labrador Trail • Dillon Wallace

... eight pages. He was evidently led to take this view from his assumption that everything, every natural object, organic or inorganic, undergoes a change. But it may be objected that this view will not apply to minerals, because those of the archaean rocks do not differ, and have undergone no change since then to the present time, unless we except such minerals as are alteration products due to metamorphism. The primary laws of nature, of physics, and of chemistry are unchangeable, while change, progression from the ...
— Lamarck, the Founder of Evolution - His Life and Work • Alpheus Spring Packard



Words linked to "Archaean" :   early, geology, archean



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