Bulletin of the Geological Society of America . evolution and the pulsing oflife, to the peopling of the lands by the denizens of the oceans, an evolu-tion that somewhere and somehow has tended to make it possible for thealg^e of the seas to feed on the air and to clothe the land with verdure;the latter in turn yields food for the animals forced to emerge from therealm of Neptune, and thus life progresses clominantly upward until itresults in reasoning man, the controlling organism of the Psychozoic era. My labor of love is now finished. I have told you in the main of thelocalized geosynclines
Bulletin of the Geological Society of America . evolution and the pulsing oflife, to the peopling of the lands by the denizens of the oceans, an evolu-tion that somewhere and somehow has tended to make it possible for thealg^e of the seas to feed on the air and to clothe the land with verdure;the latter in turn yields food for the animals forced to emerge from therealm of Neptune, and thus life progresses clominantly upward until itresults in reasoning man, the controlling organism of the Psychozoic era. My labor of love is now finished. I have told you in the main of thelocalized geosynclines and the oceanic floodings of the continent. In thefollowing papers of this Symposium you will learn more of how geosyn-•clines are transformed into synclinorial mountain systems, or how vastexpanses of inland seas become transformed into glorious mountains,areas scenically grand, geologically most difficult, and structurally highlyinteresting and significant. From studies in depression I turn you overto studies in uplift. ILLUSTRATIONS 213. PiGURE 1.—Gcosynclines (dotted), Lands (white), and Oceans or Mediterra-neans (ruled) during late Proterozoic Time Black marks the known outcrops of Animikian, Keweenawan, Beltian. Cordilleran trough may have opened into the Arctic Ocean. 214 C. SCHUCHERT THE NORTH AMERICAN GEOSYXCLIXES
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectgeology, bookyear1890
