TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A texture, often found in certain types of mineral deposits, where crystals have grown in a radiating and concentric manner which may reflect underlying geochemical controls. Lead-zinc deposits of sedimentary origin often show colloform banding of pyrite and sphalerite ...  2, record 1, English, - colloform%20banding

Record number: 1, Textual support number: 1 CONT

... colloform banding... is a very fine scale banding involving one or more sulphides very like the banding in agate. Some workers believe that it results from colloidal deposition and that the banding is analogous to the Liesegang rings formed in some gels. This banding is very susceptible to destruction by recrystallization and may be partially or wholly destroyed by diagenesis or low grade metamorphism, producing a granular ore.  3, record 1, English, - colloform%20banding

Record number: 1, Textual support number: 2 CONT

Textures vary with the degree of recrystallization. The dominant original textures appear to be colloform banding of the sulphides with much development of framboidal pyrite, perhaps reflecting colloidal deposition. Commonly however, recrystallization, often due to some degree of metamorphism, has destroyed the colloform banding and produced a granular ore.  3, record 1, English, - colloform%20banding

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 OBS

Voir «rubanement» et «colloforme».  1, record 1, French, - rubanement%20colloforme

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Historic Structures : Cleaning Historic Masonry... Use clean potable water free from contaminants. Appearance of iron and copper stains, possibly in regions in which local water supply has relatively high metal content, is more easily avoided with introduction of complexing agents into water. Stones with high metal content are susceptile to development of Liesegang rings which can accelerate decay of corners and edges. Some municipal water is highly chlorinated; if used on limestone, it can make it more soluble or cause corrosion of metal ties.  2, record 2, English, - Liesegang%20ring

Record number: 2, Textual support number: 2 CONT

Technology of Humid Walls Drying with Crystalline Injection Technology. The Palace complex in Lowicz near Warsaw is on top of a long list of over 2550 buildings structures in that number over 100 in Cracow thus far treated in Poland by the crystalline injection technique. The work of dampness removal in these 18th century historical buildings was carried out in july 1987... The crystalline injection technique developed by Wojciech Nawrot is covered by patent... Crystallisation of the substance injected occurs by the effect referred to in the specialist literature as the periodic precipitation process or ageing sol. During this specific crystallisation self-organisation of crystals takes place. The effect is also thermodynamically explained. The structure thus formed resembles some narrow rings which may be encountered in nature in geological systems(known as the Liesegang rings).  3, record 2, English, - Liesegang%20ring

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

[...] la distance entre molécules de sucre hydratées étant très faible et leur hydratation de nature électrostrictive assez forte, on voit mal comment les molécules d'eau peuvent diffuser dans ce milieu. Le mode de migration pourrait alors être dû à la rotation des molécules de sucre et un transfert molécule à molécule du type de celui qui est proposé dans la publication d'English et Dole [...] le développement des faces présentant des moitiés fructose comme les faces (1-10) et (110) semble plus rapide. Ceci serait dû à la plus grande mobilité de l'eau au contact du fructose par rapport aux molécules hydratant le glucose. L'alignement des molécules de façon à présenter une conformation compatible avec la rupture des liaisons H avec l'eau et l'incorporation des molécules de saccharose désolvatées peut prendre un certain temps. Cela se traduit par une cristallisation par pulsations, présentant une allure rythmique semblable aux anneaux de Liesegang.  1, record 2, French, - anneau%20de%20Liesegang

Record 2,  Textual support,  Spanish