Composite ultramafic xenoliths were collected at Peridot Mesa, San Carlos, Arizona. These nodules were analyzed petrographically, by electron microprobe, and for intrinsic oxygen fugacity (IOF). Textures proved to be transitional between those of igneous and those of metamorphic petrogenetic environments. Phase chemistry interpretations were not totally consistent with either igneous or metamorphic models of formation. IOF data could not be used to unravel equilibrium relationships between solid phases, but were overprinted by reactions with volatiles contained in the minerals, chiefly CO2. These results indicate that the nodules were derived from a complex upper-mantle source region characterized by multi-phase igneous events with important intervening, probably sub-solidus, i.e. metamorphic, reactions between phases. / Earth and Environmental Science / Accompanied by one .pdf file: 1) Weiss-Supplemental-1984.pdf
| Identifer | oai:union.ndltd.org:TEMPLE/oai:scholarshare.temple.edu:20.500.12613/8630 |
| Date | January 1984 |
| Creators | Weiss, David S. |
| Contributors | Ulmer, Gene Carleton, 1937-2015, Grandstaff, David E., Goodwin, Peter W. |
| Publisher | Temple University. Libraries |
| Source Sets | Temple University |
| Language | English |
| Detected Language | English |
| Type | Thesis/Dissertation, Image |
| Format | 111 pages |
| Rights | IN COPYRIGHT- This Rights Statement can be used for an Item that is in copyright. Using this statement implies that the organization making this Item available has determined that the Item is in copyright and either is the rights-holder, has obtained permission from the rights-holder(s) to make their Work(s) available, or makes the Item available under an exception or limitation to copyright (including Fair Use) that entitles it to make the Item available., http://rightsstatements.org/vocab/InC/1.0/ |
| Relation | http://dx.doi.org/10.34944/dspace/8594, Digital copy of print original., Theses and Dissertations |
Page generated in 0.0017 seconds