Pacificite, an anemousite basalt
- Author:
- Barth, Tom F.W.
- Title:
- Pacificite, an anemousite basalt
- Periodical:
- Journal of the Washington Academy of Sciences
- Year:
- 1930
- Volume:
- 20
- Pages:
- 60-68
- Subject:
- Basalt Geology Mauna Kea
- Summary:
- Barth gives modal and normative data for rocks, and optical properties of minerals, for samples from Haleakala and Mauna Kea. The author concludes that normative nepheline is present in many lavas of Pacific islands, but is not recognized in the mode, and that some of the apparently normal plagioclase actually is anemousite, a feldspar containing the triclinic form of nepheline in solid solution. Rocks containing this are termed pacificite. He describes in detail a rock collected by Washington, in Kaula Gulch, above Ookala.
- Label:
- Geology
- Date:
- 1930
- Collection:
- Periodicals