Sentence examples for induration from inspiring English sources

Particle size is an important textural parameter of clastic rocks because it supplies information on the conditions of transportation, sorting, and deposition of the sediment and provides some clues to the history of events that occurred at the depositional site prior to final induration.

The term quartzite implies not only a high degree of hardening (induration), or "welding," but also a high content of quartz; similar rocks that contain appreciable quantities of other minerals and rock particles are impure quartzites, more appropriately called graywacke, lithic arenite, sandstone, or the like.

Noted coal geologist James Morton Schopf defined coal as containing more than 50 percent by weight (or 70 percent by volume) carbonaceous matter produced by the compaction and induration of altered plant remains namely, peat deposits.

In addition to sedimentary structures that are normally associated with bedding planes, there are other such structures that result from deformation during or shortly after sedimentation but before induration of the sediment into rock.

Induration, hardening of rocks by heat or baking; also the hardening of sediments through cementation or compaction, or both, without the introduction of heat.

The classic example is the rock called hornfels, which is formed at contacts with igneous intrusions and in which heat and fluids from the intruding magma reconstitute the original wall rock into a hardened, flinty rock with a dense texture; it also is commonly formed by induration of carbonate sedimentary rocks and shales.