Geologic Formation: A body of rock strata (layers) that consists of a certain type or combination of types of rock with the same characteristics such as grain size, or mineral content, or mode of deposition. A formation is usually visually distinguishable from the rock above and below.
👇 ស្វែងរកឯកសាររៀននិងការងារគ្រប់ប្រភេទនៅទីនេះ៖
👇 ស្វែងរកពាក្យផ្សេងទៀតនៅប្រអប់នេះ៖