The Principle of Cross-Cutting Relationships. Sometimes magma pushes, or intrudes, into cracks in existing rocks. When the melted rock cools and solidifies, the resulting feature is called an igneous intrusion. This image shows metamorphic rock in Death Valley, California, cut by a darker igneous intrusion.
ISO stands for International Standards Organisation and it refers to the industry norm for sensitivity of emulsion based film, with 100 ISO being not so sensitive (and the standard ISO used by most people) to 1600 ISO which is extremely sensitive to light.
Iso-. Iso-. 1. (Science: prefix) a prefix that means equal or like. 2. (Science: chemistry) a prefix indicating isomer of (isomerism); e.g., isocyanate vs. cyanate. 3. (Science: immunology) a prefix designating sameness with respect to species; in recent years, the meaning has shifted to sameness with respect to genetic Constitution of individuals. Origin: g. Isos, equal. Please contribute to this project, if you have more information about this term feel free to edit this page. This page was last modified on 3 October 2005, at 21:16.This page has been accessed 7,433 times.