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For more than half a century the theory of continental drift was widely derided. Innovators developing the radical theory were labelled as unscientific by well-known science authorities. But then, in the space of a few years, virtually all opposition dramatically collapsed. Continental drift transformed into plate tectonics and became widely acknowledged as one of the most profound scientific revolutions of the twentieth century. Yet a number of science innovators who had been closely involved with creating this new theory of the Earth continued to research an even more radical theory. They saw evidence that the new geological theory was incomplete, arguing that continental drift was caused ...
Erstmals wird hier die Fulle der englischsprachigen Athiopienliteratur geordnet dargeboten. In 100 Sections fuhrt der Autor alle fur die wissenschaftliche Beschaftigung mit Athiopien wichtigen Buch- und Zeitschriftenbeitrage zum Beispiel zur "Historyof Research", "Archaeology", "Religion", aber auch Fragen der "Sociology", "Agriculture", "Zoology" und "Medical Sciences" auf. Wie im Falle der deutschsprachigen Literatur ("Bibliographia Aethiopica: Die athiopienkundliche Literatur des deutschsprachigenRaumes" = Aethiopistische Forschungen 9 [1982]) berucksichtigt der Autor auch alle ihm zuganglichen Besprechungen, womit bei einer Aufnahme von mehr als 24.000 Titeln eine Art "Bibliographic Enzyclopedia" entstanden ist.
Chapter 24. The distribution of Pt-group elements and the Pt-group minerals in the basic and ultrabasic rocks -- Chapter 25. The mineralogical and geochemical distribution of sulphides in basic and ultrabasic bodies -- Chapter 26. The significance of magnetite and magnetite with titaniferous "ex-solution" in basic and ultrabasic rocks -- Chapter 27. On the alteration and weathering of basic and ultrabasic rocks -- Chapter 28. Textures of olivine serpentinisation -- Chapter 29. The reaction chromite-serpentine -- Chapter 30. Differential leaching of elements from ultrabasic rocks and birbiritisation of dunites -- Chapter 31. Low-temperature mobilisation of the Pt-group elements in lateritic covers (Synoptical discussion) -- Chapter 32. Alteration of dunite, magnesite formation -- Chapter 33. Lateritisation processes of serpentine and altered dunitic rocks -- Chapter 34. Metasomatic alterations of ultrabasics (e.g. Rodingites) -- Illustrations -- Fig. 1-Fig. 258 -- Fig. 259-Fig. 515 -- Fig. 516-Fig. 733b -- References -- Author Index -- Subject Index to the Text Part -- Subject Index to the Illustrations
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Mineralogical abstracts issued as a separately paged supplement, 1920-
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