Petrogenesis of ultramafic xenoliths from the 1800 Kaupulehu flow, Hualalai Volcano, Hawaii
- Author:
-
Chen, Chen-Hong, Presnall, Dean C., Stern, Robert J.
- Title:
- Petrogenesis of ultramafic xenoliths from the 1800 Kaupulehu flow, Hualalai Volcano, Hawaii
- Periodical:
- Journal of Petrology
- Year:
- 1992
- Volume:
- 33
- Pages:
- p. 163-202
- Subject:
-
Hualalai
Xenoliths
Olivine
Volcanoes Hawaii Island
- Summary:
- Ultramafic and mafic xenoliths are abundant and well known from the spectacular xenolith cobble beds in the 1800 Kaupulehu alkalic basalt flow on Hualalai Volcano. These xenoliths present an excellent opportunity to examine samples of the walls of the passage through which the magma rose and to clarify some aspects of Hawaiian volcanic processes that are not evident in the lavas themselves. The most abundant xenolith types are dunite, wehrlite, and olivine clinopyroxenite with minor gabbro, troctolite, anorthosite, websterite. Bohrson & Clague (1988) studied the petrography and mineral compositions of some of the ultramafic xenoliths containing exsolved pyroxenes. This study complements the study done by Bohrson and Clague and concentrates on the abundant dunites, wherlites and olivine clinopyroxenites.
- Label:
- Geology
- Date:
- 1992
- Collection:
- Periodicals