Pumice Properties, Texture, Composition, Formation and Uses
Pumice is an extremely low density, frothy, form-like or highly vesicular volcanic rock with a glass texture. This rock is
Geology
Meaning of Unconformity in Geology, Formation and Types
Unconformity in geosciences, earth sciences, or geology refers to a buried surface of no deposition, erosion, or both, separating rock
Rhyolite Properties, Composition, formation and Uses
Rhyolite is a fine-grained to glassy, light-colored, silica-rich extrusive volcanic rock that often has a porphyritic texture. It forms when
What Does the Principle of Inclusions State in Geology and Why Is it Important?
The principle of inclusions states that a rock enclosing fragments of an adjacent rock is younger than the adjacent rock
What Does the Principle of Original Horizontality State and How Does It Help?
The principle of original horizontality states that sediments that form sedimentary rocks are deposited nearly flat, influenced by gravity. This basic
What Does Principle Lateral Continuity State and Why Is It important?
You are here because you want to know what the law or principle of lateral continuity states, why it is
Principle of Cross-Cutting Relationships Meaning and Examples
The law or principle of cross-cutting relationships states that a rock body, geological process or feature that disrupts, penetrates, deforms,
Norite Properties, Composition and Uses
Norite is a coarse-grained plutonic rock with mainly calcic plagioclase, orthopyroxene, and a minor amount of other minerals. Plutonic rocks
8 Modern and Historical Obsidian Uses
Obsidian uses include making prehistoric stone tools. Photo credit: Ismoon (talk) 21:26, 8 June 2018 (UTC), CC BY-SA 4.0, via Wikimedia Commons.
Dacite Properties, Composition and Uses
Dacite is a fine-grained, light-colored volcanic rock with a felsic composition. Felsic rocks are silica-rich and dominated by light-colored elements