Subdivision of the Mg-suite noritic rocks into Mg-gabbronorites and Mg-norites
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
Mg-suite noritic rocks can be divided into two groups, the Mg-gabbronorites and the Mg-norites. The rocks of these groups differ in ratios of high-Ca pyroxene to total pyroxene, compositions of pyroxene and plagioclase, assemblages of Ti-, Nb-, and Zr-bearing minerals, compositions of chrome spinel, bulk-rock Ti/Sm and Sc/Sm, and measured ages. The two groups probably crystallized from different types of parent magmas. Two hypotheses are offered for the differences in composition of the parent magmas. One hypothesis ascribes the differences to compositional heterogeneity of the mantle source areas. The other hypothesis ascribes the differences to variations in extent of partial melting of the mantle source regions and variations in extent of assimilation of the anorthosite and the highly differentiated residual liquid that were produced during the primordial lunar differentiation.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Subdivision of the Mg-suite noritic rocks into Mg-gabbronorites and Mg-norites |
| Series title | Journal of Geophysical Research Solid Earth |
| DOI | 10.1029/JB088iS02p0A603 |
| Volume | 88 |
| Issue | S02 |
| Year Published | 1983 |
| Language | English |
| Publisher | American Geophysical Union |
| Description | 12 p. |
| First page | A603 |
| Last page | A614 |
| Google Analytic Metrics | Metrics page |