CONTENTS. 



Chapter I. Introduction and general statements 1 



The views of Le Vender, Harker, Prior, Becke, Suess, Daly, Flett and Dewey, Smyth, Bowen. 



II. A provisional tectonico-petrographic classification of intrusive complexes of basic igneous rocks 5 



Alpine, cordilleran, laccomorphic, dolerite-sill, alkaline-plateau, alkaline- peridotite, and 

 spilitic type. 



III. The basic and ultrabasic rocks of northern Europe 9 



IV. The basic and ultrabasic rocks of the Alpine Mountain system of southern Europe and the Atlas 



Mountains 23 



V. The basic and ultrabasic rocks of Asia and the Malay Archipelago 30 



VI. The basic and ultrabasic intrusive rocks of Australasia 35 



VII. The basic and ultrabasic intrusive rocks of Africa 45 



VIII. The basic and ultrabasic intrusive rocks of America 52 



Eastern North America, the western cordillera of North America; Central and South America. 



IX. Discussion and conclusions 68 



Green-rocks of the Alpine type, the spilitic rock-suite, the alkaline-plateau group, the alkaline 

 peridotite-dikes, the dolerite-sills, the laccomorphic complexes, the cordilleran complexes, the 

 eruptibility of peridotite, a working hypothesis of tectonic petrology, subalkaline (alkali-calcic) 

 and alkaline petrographical provinces, conclusion and acknowledgments. 



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