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Alfred L. Wegener
(1 Nov 1880 - c. Nov 1930)
German geophysicist and meteorologist who presented the first complete statement of the continental drift hypothesis. He proposed that about 250 million years ago, all present-day continents existed combined in a single supercontinent which subsequently fragmented and drifted apart.
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Science Quotes by Alfred L. Wegener (7 quotes)
In the whole of geophysics there is probably hardly another law of such clarity and reliability as this—that there are two preferential levels for the world’s surface which occur in alternation side by side and are represented by the continents and the ocean floors, respectively. It is therefore very surprising that scarcely anyone has tried to explain this law.
— Alfred L. Wegener
In The Origins of Continents and Oceans (4th ed. 1929), trans. John Biram (1966), 37.
It is a strange fact, characteristic of the incomplete state of our present knowledge, that totally opposing conclusions are drawn about prehistoric conditions on our planet, depending on whether the problem is approached from the biological or the geophysical viewpoint.
— Alfred L. Wegener
In The Origins of Continents and Oceans (4th ed. 1929), trans. John Biram (1966), 5.
Scientists still do not appear to understand sufficiently that all earth sciences must contribute evidence toward unveiling the state of our planet in earlier times, and that the truth of the matter can only be reached by combing all this evidence. ... It is only by combing the information furnished by all the earth sciences that we can hope to determine 'truth' here, that is to say, to find the picture that sets out all the known facts in the best arrangement and that therefore has the highest degree of probability. Further, we have to be prepared always for the possibility that each new discovery, no matter what science furnishes it, may modify the conclusions we draw.
— Alfred L. Wegener
The Origins of Continents and Oceans
South America must have lain alongside Africa and formed a unified block which was split in two in the Cretaceous; the two parts must then have become increasingly separated over a period of millions of years like pieces of a cracked ice floe in water.
— Alfred L. Wegener
In The Origins of Continents and Oceans (4th ed. 1929), trans. John Biram (1966), 17.
The first concept of continental drift first came to me as far back as 1910, when considering the map of the world, under the direct impression produced by the congruence of the coast lines on either side of the Atlantic. At first I did not pay attention to the ideas because I regarded it as improbable. In the fall of 1911, I came quite accidentally upon a synoptic report in which I learned for the first time of palaeontological evidence for a former land bridge between Brazil and Africa. As a result I undertook a cursory examination of relevant research in the fields of geology and palaeontology, and this provided immediately such weighty corroboration that a conviction of the fundamental soundness of the idea took root in my mind.
— Alfred L. Wegener
In The Origins of Continents and Oceans (4th ed. 1929), trans. John Biram (1966), 1.
The forces which displace continents are the same as those which produce great fold-mountain ranges. Continental drift, faults and compressions, earthquakes, volcanicity, transgression cycles and polar wandering are undoubtedly connected causally on a grand scale. Their common intensification in certain periods of the earth’s history shows this to be true. However, what is cause and what effect, only the future will unveil.
— Alfred L. Wegener
In The Origins of Continents and Oceans (4th ed. 1929), trans. John Biram (1966), 179.
The Newton of drift theory has not yet appeared. His absence need cause no anxiety; the theory is still young and still often treated with suspicion. In the long run, one cannot blame a theoretician for hesitating to spend time and trouble on explaining a law about whose validity no unanimity prevails.
— Alfred L. Wegener
In The Origins of Continents and Oceans (4th ed. 1929), trans. John Biram (1966), 167.
Quotes by others about Alfred L. Wegener (5)
The Wegener hypothesis has been so stimulating and has such fundamental implications in geology as to merit respectful and sympathetic interest from every geologist. Some striking arguments in his favor have been advanced, and it would be foolhardy indeed to reject any concept that offers a possible key to the solution of profound problems in the Earth’s history.
Published while geologists remained sceptical of Alfred Wegener’s idea of Continental Drift, Though unconvinced, he published these thoughts suggesting that critics should be at least be open-minded. His patience was proven justified when two decades later, the theory of plate tectonics provided a mechanism for the motion of the continents.
Published while geologists remained sceptical of Alfred Wegener’s idea of Continental Drift, Though unconvinced, he published these thoughts suggesting that critics should be at least be open-minded. His patience was proven justified when two decades later, the theory of plate tectonics provided a mechanism for the motion of the continents.
Some Thoughts on the Evidence for Continental Drift (1944).
One day while I was teaching at Marburg a man came to me, whose fine features and penetrating, gray-blue eyes I was unable to forget. He had developed an extraordinary theory in regard to the structure of the earth. He asked me whether I, a geologist, was prepared to help him, a physicist, by contributing pertinent geological facts and concepts. I liked the man very much, even though I was skeptical of his ideas. Thus began a loose co-operation on a subject in which the Red Sea rapidly assumed a central position.
The man was Alfred Wegener.
The man was Alfred Wegener.
In Hans Cloos, Ernst Cloos (ed.) and Curt Dietz (ed.), Conversation With the Earth (1953, 1959), 395-396, as translated by E.B. Garside from the original German edition, Gespräch mit der Erde (1947). For a variant translation of this same passage, see elsewhere on this site’s webpage for Hans Cloos quotations, for the one beginning, “The war found me in Marburg.…”
In [1950 in] South Africa all the geologists were disciples of Alfred Wegener and A. L. du Toit, and were anxious to correct my failure to accept continental drift, but I remained inflexible for another nine years.
Recalling his reluctance to accept the ideas of continental drift. As quoted, without citation, in G. D. Garland, 'John Tuzo Wilson', Biographical Memoirs of Fellows of the Royal Society (Nov 1995), 41, 544. This quote’s relevance is to contrast with his later writing (1962), quoted on this webpage beginning, “…continent blocks can join and rift at random…”.
My courses in physics and chemistry showed me that science could and indeed should have precise theories, but at that time geology lacked them and all right-minded geologists scoffed at the search for any. They said that this was armchair geology and that more maps were both the aim and the method of geology. So sterile a concept baffled me, but I was too stupid to accept, until I was fifty, the explanation which Frank Taylor and Alfred Wegener had advanced in the year I was born.
In 'Early Days in University Geophysics', Annual Review of Earth and Planetary Sciences (1982), 10, 6.
In my youth scarcely anyone mentioned Wegener’s ideas of a mobile earth and moving continents. … The great impediment was that geologists only studied that one quarter of the earth’s surface not covered by ice or water; at that time no one had any means for exploring the great interior or the ocean floors.
In 'Early Days in University Geophysics', Annual Review of Earth and Planetary Sciences (1982), 10, 6.
See also:
- 1 Nov - short biography, births, deaths and events on date of Wegener's birth.
- Alfred Wegener - The Father of Continental Drift - One Minute Read
- Origin of Continents and Oceans, by Alfred Wegener. - book suggestion.
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) -- 
