Metastable Growth Patterns in Some Terrestrial and Lunar Rocks

@article{Drever1972MetastableGP,
  title={Metastable Growth Patterns in Some Terrestrial and Lunar Rocks},
  author={Harald Irving Drever and Robert Johnston},
  journal={Meteoritics},
  year={1972},
  volume={7},
  pages={327-340}
}
With reference to new information on the textures in some terrestrial mafic and ultramafic igneous rocks of Tertiary age, textural patterns attributable to metastable crystallization are described, illustrated and reviewed. The igneous textural terminology, employed in the descriptive text, is reviewed and the use of certain new terms is advocated. Compared with these textural patterns are the skeletal crystal growth and intergrowth in igneous rock samples obtained, mainly by the Apollo 12… Expand
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References

SHOWING 1-10 OF 15 REFERENCES
Some textures in Apollo 12 lunar igneous rocks and in terrestrial analogs.
The interpretation of immature crystallization and some lunar textures characterized by it are the principal objectives of this investigation. A comparative and selective approach is adopted, andExpand
The layered ultrabasic tocks of Rhum, Inner Hebrides
  • G. M. Brown
  • Biology
  • Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
  • 1956
TLDR
The ultrabasic rocks of Rhum were re-mapped over an area of 3 square miles, including Hallival and Askival, the highest mountains of the island, to reconsider its manner of origin in the light of modern petrological research, especially recent work on layered intrusions. Expand
Erratum: Contrasting Archean ultramafic igneous bodies in Dundonald and Clergue Townships, Ontario
A differentiated sill of ultramafic and gabbroic rocks in Dundonald and Clergue Townships (25 miles northeast of Timmins, Ontario) may be classed as a "stratiform intrusion", whereas severalExpand
XXII.—The Petrology of Picritic Rocks in Minor Intrusions—a Hebridean Group.
The results are presented of a detailed petrological reconnaissance of a group of picritic minor intrusions in the Hebrides. A substantial amount of new factual data is subjected to a unifiedExpand
GEOLOGY OF THE ELKHORN MOUNTAINS, NORTHEASTERN OREGON: PART 2. WILLOW LAKE INTRUSION
The Willow Lake intrusion is funnel-shaped with contacts inclined inward at 60°-70° and has a sheetlike appendage to the southwest, inclined northwest at 50°. The pluton lies athwart the southernExpand
The System CaO-MgO-FeO-SiO_2 and its Bearing on the Origin of Ultrabasic and Basic Rocks
Experimental data in the system CaO-MgO-FeO-SiO_2 suggest that there may be a plateau on the liquidus and solidus of the multicomponent system basalt-peridotite. If this is so, fusion of peridotiteExpand
Spherulitic textures in glassy and crystalline rocks
Spherulites are clusters of confocally radiating crystals that, contrary to the implication of their name, are not commonly spherical but usually resemble sheaves of wheat tied at the center. TheExpand
The layered ultrabasic rocks of south-west Rhum, Inner Hebrides
  • W. Wadsworth
  • Biology
  • Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
  • 1961
TLDR
The present study was initiated in the Harris area, which covers the south-western part of the ultrabasic tract, because it was believed that the rocks exposed there represented a different level in the original intrusion, and that they would provide further evidence of the mode of formation. Expand
Effects of the changes in slope occurring on liquidus and solidus paths in the system diopside-anorthite-albite
Liquidus and solidus paths in the system diopside-anorthitc-albite exhibit changes in slope. When plagioclase crystallizes alone from a ternary liquid both paths arc steeper than in the systemExpand
Differing Powers of Crystal Nucleation as a Factor Producing Diversity in Layered Igneous Intrusions
"To account for a type of rhythmic unit found in the Bushveld complex of South Africa and probably in other layered intrusions, a hypothesis is put forward dependent on the different powers ofExpand
...
1
2
...