Mineralogy of sulfides from certain Hawaiian basalts
Economic Geology
By: G. A. Desborough, Alfred T. Anderson, and Thomas L. Wright
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Abstract
Polymineralic sulfide grains, composed principally of Fe sulfide and Fe-Cu sulfide, with magnetite, have been studied mineragraphically and by electron probe, and interpreted in terms of experimental data for the system Fe-Ni-Cu-S. The three main phases are monosulfide solid solution, a Cu-Fe sulfide (solid solution) with composition near cubanite, and Ti-free magnetite. The grains are believed to represent phases unmixed from an immiscible liquid phase in the basalt magma. Compositions of the two main sulfide phases suggest quenching below 700 degrees C. Most of the Ni has been retained in the monosulfide solid solution by rapid quenching.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Mineralogy of sulfides from certain Hawaiian basalts |
| Series title | Economic Geology |
| DOI | 10.2113/gsecongeo.63.6.636 |
| Volume | 63 |
| Issue | 6 |
| Year Published | 1968 |
| Language | English |
| Publisher | American Geological Institute |
| Contributing office(s) | Volcano Science Center |
| Description | 9 p. |
| First page | 636 |
| Last page | 644 |
| Country | United States |
| State | Hawaii |
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