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Home > Dictionary of Science Quotations > Scientist Names Index K > Phillip H. Kuenen Quotes

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Phillip H. Kuenen
(1902 - 1976)

Dutch geologist.

Science Quotes by Phillip H. Kuenen (3 quotes)

Experimental geology has this in common with all other branches of our science, petrology and palaeontology included, that in the long run it withers indoors.
— Phillip H. Kuenen
'Experiments in Geology', Transactions of the Geological Society of Glasgow (1958), 23, 25.
Science quotes on:  |  Experiment (543)  |  Geology (187)  |  Indoors (2)  |  Paleontologist (15)  |  Science (1699)

No Geology without Marine Geology!
— Phillip H. Kuenen
Title of paper, reprinted in Wolf-Christian Dullo (Ed.), Milestones in Geosciences (2003), 54.
Science quotes on:  |  Geology (187)  |  Marine Geology (2)

On the basis of the results recorded in this review, it can be claimed that the average sand grain has taken many hundreds of millions of years to lose 10 per cent. of its weight by abrasion and become subangular. It is a platitude to point to the slowness of geological processes. But much depends on the way things are put. For it can also be said that a sand grain travelling on the bottom of a river loses 10 million molecules each time it rolls over on its side and that representation impresses us with the high rate of this loss. The properties of quartz have led to the concentration of its grains on the continents, where they could now form a layer averaging several hundred metres thick. But to my mind the most astounding numerical estimate that follows from the present evaluations, is that during each and every second of the incredibly long geological past the number of quartz grains on earth has increased by 1,000 million.
— Phillip H. Kuenen
'Sand-its Origin, Transportation, Abrasion and Accumulation', The Geological Society of South Africa (1959), Annexure to Volume 62, 31.
Science quotes on:  |  Estimate (19)  |  Geology (187)  |  Layer (14)  |  Molecule (125)  |  Process (201)  |  Quartz (2)  |  Sand (25)


Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
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