Role of plagioclase crystal chains in the differentiation of partly crystallized basaltic magma
Article Abstract:
Melting experiments have been undertaken on samples os basaltic rock from a thick lava flow. Feldpsar crystals are revealed to have linked together to form a continuous three-dimensional network of chains when the lava originally started to crystallize. Compositional variations in igneous rocks are mostly the result of separation of liquid from crystals, and the process has affected according to whether crystals are separate or formed in networks.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Generation of sodium-rich magmas from newly underplated basaltic crust
Article Abstract:
Plutonic and volcanic rocks from the Cordillera Blanca complex in Peru are described. These rocks resemble the high-aluminum trondhjemite-tonalite-dacite suite, but were produced above a subduction zone zone containing a 60-Myr-old slab. It is suggested that the complex was formed by partial melting of newly underplated basaltic crust. Furthermore, this mechanism is proposed as a general process for generating sodium-rich arc magmas.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1993
User Contributions:
Comment about this article or add new information about this topic:
The formation of plagioclase chains during convective transfer in basaltic magma
Article Abstract:
Research is presented concerning the three-dimensional chain formation of feldspar crystals in the basaltic rock layer of the Holyoke lava flow in Massachusetts and Connecticut. The stage of crystallization at which the network formed is discussed.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Review of ecological effects of roads on terrestrial and aquatic communities. On the future of conservation biology
- Abstracts: A photoionization instability in the early intergalactic medium. Cosmic upsilon-ray background from structure formation in the intergalactic medium
- Abstracts: A 1,000-year chain of thinkers. A different kind of Universe. The microscope's coat of arms
- Abstracts: Bcl-2 promotes regeneration of severed axons in mammalian CNS. Cortex-restricted disruption of NMDAR1 impairs neuronal patterns in the barrel cortex
- Abstracts: Diversity suppresses growth. Quasi-planar nucleus structure in apoferritin crystallization. Catching crystals at birth