MINERALOGY AND PETROLOGY OF THE INTRUSIVE COMPLEX OF THE PLINY RANGE, NEW HAMPSHIRE.

被引：48

作者：

Czamanske, Gerald K.

Wones, David R.

Eichelberger, John C.

机构：

来源：

American Journal of Science | 1977年 / 277卷 / 09期

关键词：

GEOCHEMISTRY - Analytical - GEOLOGY - New Hampshire - ORE DEPOSITS - New Hampshire - PETROLOGY - Petrography;

D O I：

10.2475/ajs.277.9.1073

中图分类号：

学科分类号：

摘要：

Field relations, major-element analyses of rocks, and microprobe analyses of minerals from the Pliny Range, N. H. suggest that the rock units represent at least four phases of igneous activity. Both whole-rock and biotite Fe/(Fe plus Mg) ratios reflect the complex magmatic history and imply significant variation in oxidation state of the separate magmas. Other support for a complex history comes from details of amphibole chemistry, the F contents of amphiboles and biotites, and the Mn contents of ilmenites. These and other data preclude a genetic model based on continuous differentiation of single parent magma.

引用

页码：1073 / 1123