Results 141 to 150 of about 188 (175)

Rheology of subliquidus magmas: 1. Picritic compositions

Journal of Geophysical Research: Solid Earth, 1988
The relationship between the rheology and phase equilibria of a picritic basalt from Kilauea Iki has been investigated at 1 atm along the QFM buffer. Between 1270° and 1180°C olivine and minor spinel are the only liquidus phases, and the melt volume decreases from 85 to 74 vol %.
F. J. Ryerson, H. C. Weed, A. J. Piwinskii   +2 more
openaire   +1 more source

New petrographical data on the Shiant Isles picrite

Mineralogical Magazine and Journal of the Mineralogical Society, 1965
SummaryA recent bore-hole through the Shiant Isles picrite established the existence of 45 feet more of the picritic facies, and also the lower margin of the silt, at a point almost vertically below the exposed 35 feet previously investigated. In the light of new field and laboratory information the pieritic facies is briefly re-examined and its origin
H. I. Drever, R. Johnston
openaire   +1 more source

A Note on the Field Relations of the Shiant Isles' Picrite

Geological Magazine, 1953
AbstractThe picrite of the Garbh Eilean–Eilean an Tighe sill occurs at a number of points not previously recorded. Its junction with the overlying picrodolerite is not gradational and it does not maintain a uniform level in the sill.
openaire   +1 more source

The Dioritic Picrite of White Hause and Great Cockup

Quarterly Journal of the Geological Society of London, 1892
This rock is exposed on both sides of Hause Gill, which separates White Hause from Great Cockup; the exposure on the former measures from 12 to 15 yards square, that on the latter mountain being somewhat smaller. The two masses are about mile apart, and are doubtless connected beneath ...
openaire   +1 more source

picrite, n.

2023
openaire   +1 more source

Genesis of High K Picrites in Eastern Kamchatka

Journal of Volcanology and Seismology, 2022
Z. G. Badredinov, B. A. Markovsky, I. A. Tararin   +2 more
openaire   +1 more source

PGE geochemistry of the Macquarie Island basalts and picrites

Goldschmidt2022 abstracts, 2022
Gyuchan Park, Jung-Woo Park, Vadim Kamenetsky   +2 more
openaire   +1 more source

Major and Trace Element Geochemistry of Olivine From an ENE-Trending Picrite Dyke, Genetically Linked to the ca. 1.89–1.88 Ga Hampi Swarm, Western Dharwar Craton: Implications for Plume Induced Melting of a Mixed Peridotite-Pyroxenite Source

Chemie Der Erde, 2022
Amiya K Samal, Rajesh K Srivastava, Jiten Pattnaik   +2 more
exaly  

Olivine xenocrysts in picritic magmas

Contributions to Mineralogy and Petrology, 1991
openaire   +1 more source

Picrite Sills and Crystal-Melt Reactions in the Honningsvåg Intrusive Suite, Northern Norway

Mineralogical Magazine, 1996
Christian Tegner
exaly