What does the term cementation mean?

What does the term cementation mean?

1 : a process of surrounding a solid with a powder and heating the whole so that the solid is changed by chemical combination with the powder. 2 : the act or process of cementing : the state of being cemented.

What is cementation example?

Cementation is a type of precipitation, a heterogeneous process in which ions are reduced to zero valence at a solid metallic interface. Cementation of copper is a common example. Copper ions in solution, often from an ore leaching process, are precipitated out of solution in the presence of solid iron.

What is the meaning of cementation in geography?

i. The diagenetic process by which coarse clastic sediments become lithified or consolidated into hard, compact rocks, usually through deposition or precipitation of minerals in the spaces among the individual grains of the sediment.

What is the role of cementation?

Cementation reduces the porosity and permeability of a sand. In some cases, however, solution of cement or grains can reverse this trend.

What is cementation and compaction?

cementation: When fluids deposit ions to create a cement that hardens loose sediments. compaction: When sediments are squeezed together by the weight of sediments and rocks on top of them.

How do you use cementation in a sentence?

Cementation sentence example The conversion of the silver into the chloride may be effected by means of salt – the ” cementation ” process – or other chlorides, or by free chlorine – Miller’s process. Oil filled the crest of the reservoir first and prevented extensive quartz cementation .

What is cementation 12th standard?

Cementation process is the hardening of cement during the process of construction. The process starts after adding water to the mixture of cement, sand and small stone pieces. In this, a gel type of product is formed which gets thickened and hardened gradually. So cementation is the process of gel formation.

What is cementation process in mining?

Cementation is the process of extracting the metals from a solution based on the electrochemical reaction between the cementing metal and the ion of the precipitated metal.

What does compaction and cementation mean?

Cementation. A sedimentary rock-forming process in which sediment grains are held together by natural cements that are produced when water moves through rock and soil. Compaction. The process that forms sedimentary rocks when layers of sediments are compressed by the weight of the layers above them.

What is needed for cementation?

Cementation involves ions carried in groundwater chemically precipitating to form new crystalline material between sedimentary grains. Large volumes of pore water must pass through sediment pores for new mineral cements to crystallize and so millions of years are generally required to complete the cementation process.

What is cementation short answer?

cementation, in geology, hardening and welding of clastic sediments (those formed from preexisting rock fragments) by the precipitation of mineral matter in the pore spaces. It is the last stage in the formation of a sedimentary rock.

What is cementation value?

The range of values for the cementation exponent is relatively small. Most porous arenaceous sediments have cementation exponents between 1.5 and 2.5 (Glover et al., 1997). Values higher than 2.5, and as high as 5, are generally found in carbonates where the pore space is less well connected (Tiab and Donaldson, 1994).