Roundness is the degree of smoothing due to abrasion of sedimentary particles. It is expressed as the ratio of the average radius of curvature of the edges or corners to the radius of curvature of the maximum inscribed sphere.
⭐ In the context of geometric measurement, roundness is considered…
Roundness focuses on the circularity of a two-dimensional cross-section, making it the counterpart to sphericity, which assesses the three-dimensional closeness to a sphere.
Teacher's Corner
Free Curriculum ToolsInstantly generate materials for this topic. No login required.
___Sphericity_q.jpg "In the context of geometric measurement, roundness is considered…")
HINT: Roundness focuses on the circularity of a two-dimensional cross-section, making it the counterpart to sphericity, which assesses the three-dimensional closeness to a sphere.
👉 Roundness (geology) in the context of Sphericity
Sphericity is a measure of how closely the shape of a physical object resembles that of a perfect sphere. For example, the sphericity of the balls inside a ball bearing determines the quality of the bearing, such as the load it can bear or the speed at which it can turn without failing. Sphericity is a specific example of a compactness measure of a shape.
Sphericity applies in three dimensions; its analogue in two dimensions, such as the cross sectional circles along a cylindrical object such as a shaft, is called roundness.
In this Dossier
- ⭐ Core Definition: Roundness (geology)
- 👉 Roundness (geology) in the context of Sphericity
- Roundness (geology) in the context of Breccia
Roundness (geology) in the context of Breccia
Breccia (/ˈbrɛ(t)ʃiə/ BRETCH-ee-ə, BRESH-; Italian: [ˈbrettʃa]; Italian for 'breach') is a clastic rock composed of large angular broken fragments of minerals or rocks cemented together by a fine-grained matrix.
The word has its origins in the Italian language, in which it means 'rubble'. A breccia may have a variety of different origins, as indicated by the named types including sedimentary breccia, fault or tectonic breccia, igneous breccia, impact breccia, and hydrothermal breccia.
View the full Wikipedia page for Breccia