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.
International Organization For Standardization - ISO. Share. DEFINITION of 'International Organization For Standardization - ISO'. The world's largest developer and published of international standards. The ISO is a network of the national standards institutes of 163 countries, coordinated by a Central Secretariat in Geneva.