Fluidal structure
Fluidal Flu"id*al, a. Pertaining to a fluid, or to its flowing motion. [1913 Webster]

{Fluidal structure} (Geol.), the structure characteristic of certain volcanic rocks in which the arrangement of the minute crystals shows the lines of flow of thew molten material before solidification; -- also called {fluxion structure}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Fluidal — Flu id*al, a. Pertaining to a fluid, or to its flowing motion. [1913 Webster] {Fluidal structure} (Geol.), the structure characteristic of certain volcanic rocks in which the arrangement of the minute crystals shows the lines of flow of thew… …   The Collaborative International Dictionary of English

  • fluxion structure — Fluidal Flu id*al, a. Pertaining to a fluid, or to its flowing motion. [1913 Webster] {Fluidal structure} (Geol.), the structure characteristic of certain volcanic rocks in which the arrangement of the minute crystals shows the lines of flow of… …   The Collaborative International Dictionary of English

  • Fluxional structure — Fluxional Flux ion*al, a. Pertaining to, or having the nature of, fluxion or fluxions; variable; inconstant. [1913 Webster] The merely human,the temporary and fluxional. Coleridge. [1913 Webster] {Fluxional structure} (Geol.), fluidal structure.… …   The Collaborative International Dictionary of English

  • Volcanic rock — is an igneous rock of volcanic origin. Texture Volcanic rocks are usually fine grained or aphanitic to glassy in texture. They often contain clasts of other rocks and phenocrysts. Phenocrysts are crystals that are larger than the matrix and are… …   Wikipedia

  • Fluxional — Flux ion*al, a. Pertaining to, or having the nature of, fluxion or fluxions; variable; inconstant. [1913 Webster] The merely human,the temporary and fluxional. Coleridge. [1913 Webster] {Fluxional structure} (Geol.), fluidal structure. [1913… …   The Collaborative International Dictionary of English

  • obsidian — ob*sid i*an, n. [L. Obsidianus lapis, so named, according to Pliny, after one Obsidius, who discovered it in Ethiopia: cf. F. obsidiane, obsidienne. The later editions of Pliny read Obsianus lapis, and Obsius, instead of Obsidianus lapis, and… …   The Collaborative International Dictionary of English

  • Rhyolite — Rhy o*lite, n. [Gr. rei^n to flow + lite.] (Min.) A quartzose trachyte, an igneous rock often showing a fluidal structure. {Rhy o*lit ic},, a. [1913 Webster] …   The Collaborative International Dictionary of English

  • Rhyolitic — Rhyolite Rhy o*lite, n. [Gr. rei^n to flow + lite.] (Min.) A quartzose trachyte, an igneous rock often showing a fluidal structure. {Rhy o*lit ic},, a. [1913 Webster] …   The Collaborative International Dictionary of English

  • Hornfels — (German, meaning hornstone ) is the group designation for a series of contact metamorphic rocks that have been baked and indurated by the heat of intrusive igneous masses and have been rendered massive, hard, splintery, and in some cases… …   Wikipedia

  • MORPHOGÉNIQUES (SYSTÈMES) — Les géographes appellent «système morphogénique» (ou système d’érosion) toute combinaison complexe de processus qui élabore le relief de vastes portions de continent correspondant à des ensembles morphostructuraux ou bioclimatiques. Selon les… …   Encyclopédie Universelle

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