The concretion matrix is dominantly an interlocking mosaic of calcite, ferroan dolomite and quartz. |
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Figure 6 shows examples of both a complete concretion and a polished cutaway section that shows the radial structure and dark center. |
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In Smithson's work, seriality involves not pure repetition or reiteration but rather accretion, concretion, and diminution. |
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Rhombs of ferroan dolomite occur both in the fringe around the fossils and within the matrix of the concretion. |
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Asbestos bodies are asbestos fibers that have been coated with an iron-rich, proteinaceous concretion. |
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Recently, one of us saw a bin of silicified barite concretion fragments in a Utah rock shop that were being sold as cycad specimens. |
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Coal balls are a particular type of carbonate concretion that has been long known for the superb preservation of plant material. |
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Limited dolomitization of the calcite around the edges of the fossils and in the matrix of the concretion occurred at a later stage. |
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In its conception and concretion, the Otter Creek feeding facility was a monument to Horace Albright's philosophy of aesthetic conservation. |
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The concern with material concretion begins with Bernstein's title, With Strings. |
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Taken together, they impart a kind of tenuous concretion to the vague concept of nationhood. |
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A nodule is a type of concretion with a rough and knobby surface. |
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Nodule, rounded mineral concretion that is distinct from, and may be separated from, the formation in which it occurs. |
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A revalidation of this commitment, with further steps towards its progressive concretion, may be the right way to proceed. |
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The presence of an ammonite is generally disclosed by a bit of iridescent shell material visible on the edge of the concretion. |
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Besides removing the concretion and converting the corrosion products to magnetite, the treatment removed a large quantity of chloride. |
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To conserve the cannon, the concretion and the salts were removed using a technique called electrolysis. |
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This type of concretion is rare, especially in the profusion found in the Maxange Caves. |
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Strenuous efforts at concretion confront the inevitability of mutability. |
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The incessant search for a hero is what has made the concretion of the tasks of comprehension about changes, and of everything that will vanish in the next number of years impossible. |
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The pearl is a spherical protruding concretion, produced by certain molluscs, which covered a foreign body with mother-of-pearl in successive coats. |
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The surface is textured as if it had suffered a concretion. |
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A certain dramaturgy is developed by this increasing concretion, which in turn is intended to serve the stronger identification of the examinee with the vocational situation. |
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The manner of its concretion is by concentrical rings, like those of an onion about the first kernel. |
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And all of them have failed because of the true conservatism, not latent but powerful, of those who, through opportunism and lack of concretion, cheat the voters. |
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On the contrary from politics, which only needs to give correct concretion to problems regarding the levelling of a socially diverse humanity and one that is now conscious of its genomic equality. |
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Sedgwick investigated the phenomena of metamorphism and concretion, and was the first to distinguish clearly between stratification, jointing, and slaty cleavage. |
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Where it remains even after the passage of time, the iron or steel hull is often fragile with no remaining metal within the layer of concretion and corrosion products. |
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