| Reference Type | Journal (article/letter/editorial) |
|---|
| Title | The Idea of Contrasted Differentiation |
|---|
| Journal | Geological Magazine |
|---|
| Authors | Holmes, Arthur | Author |
|---|
| Year | 1936 (May) | Volume | 73 |
|---|
| Issue | 5 |
|---|
| Publisher | Cambridge University Press (CUP) |
|---|
| DOI | doi:10.1017/s0016756800097417 |
|---|
| Generate Citation Formats |
|---|
| Mindat Ref. ID | 246643 | Long-form Identifier | mindat:1:5:246643:3 |
|---|
|
| GUID | 0 |
|---|
| Full Reference | Holmes, Arthur (1936) The Idea of Contrasted Differentiation. Geological Magazine, 73 (5) 228-238 doi:10.1017/s0016756800097417 |
|---|
| Plain Text | Holmes, Arthur (1936) The Idea of Contrasted Differentiation. Geological Magazine, 73 (5) 228-238 doi:10.1017/s0016756800097417 |
|---|
| In | (1936, May) Geological Magazine Vol. 73 (5) Cambridge University Press (CUP) |
|---|
| Abstract/Notes | As early as 1915, it was made clear by Bowen that, given continuous separation of crystals from the successive residual liquids of a consolidating magma which was initially basaltic in composition, the inevitable result would be a gabbroic rock in depth, a granitic one above, and “various intermediate types in the intermediate layers”. As a necessary condition to the evolution of a magmatic residuum of granitic composition, this process of progressive crystallization differentiation involves the generation of intermediate rock-types from residual liquids of intermediate composition. Certain investigators, however, led by the authors of the Mull memoir (1924), have entirely overlooked the necessity of this condition. Faced with the association of contrasted acid and basic rocks, which is a conspicuous characteristic of many continental central complexes, they have attempted to account for the facts by introducing a modified conception of crystallization differentiation for which Nockolds has recently proposed the name contrasted differentiation. According to this conception, the residual liquid of consolidating basaltic magma is of granitic composition and can be separated in bulk from a crystalline gabbroic phase. |
|---|
These are possibly similar items as determined by title/reference text matching only.
