Mineralogy and geochemical evolution of the Little Three pegmatite-aplite layered intrusive, Ramona, California
American Mineralogist
By: L.A. Stern, Gordon E. Brown Jr., D.K. Bird, R. H. Jahns, E. E. Foord, J.E. Shigley, and L.B. Spaulding Jr.
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Abstract
Several layered pegmatite-aplite intrusives exposed at the Little Three mine, Ramona, display closely associated fine-grained to giant-textured mineral assemblages which are believed to have co-evolved from a hydrous aluminosilicate residual melt with an exsolved supercritical vapour phase. Calculations of phase relations between the major pegmatite-aplite mineral assemblages and supercritical aqueous fluid were made, assuming equilibrium and closed-system behaviour as a first-order model.-J.A.Z.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Mineralogy and geochemical evolution of the Little Three pegmatite-aplite layered intrusive, Ramona, California |
| Series title | American Mineralogist |
| Volume | 71 |
| Issue | 3-4 |
| Year Published | 1986 |
| Language | English |
| Description | 22 p. |
| First page | 406 |
| Last page | 427 |
| Country | United States |
| State | California |
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