Transcription of CLAY MINERALS - USDA
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clay MINERALSCD. BartonUnited States Department of Agriculture Forest Service, Aiken,South Carolina, KarathanasisUniversity of Kentucky, Lexington, Kentucky, MINERALS refers to a group of hydrous aluminosili-cates that predominate the clay -sized (<2 |xm) fraction ofsoils. These MINERALS are similar in chemical and structuralcomposition to the primary MINERALS that originate fromthe earth 's crust; however, transformations in thegeometric arrangement of atoms and ions within theirstructures occur due to weathering. Primary MINERALS format elevated temperatures and pressures, and are usuallyderived from igneous or metamorphic rocks.
the Earth's crust; however, transformations in the geometric arrangement of atoms and ions within their structures occur due to weathering. Primary minerals form at elevated temperatures and pressures, and are usually derived from igneous or metamorphic rocks. Inside the Earth these minerals are relatively stable, but transform-
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Changes in the Earth’s Surface, Structure of the Earth, The Earth’s surface, Economics of the Coming Spaceship Earth, Structure, Earth, Eratosthenes’ Determination of Earth’s Circumference, Lecture 1 Introduction to Biochemistry Part 1, Lecture 1 - Introduction to Biochemistry, MIT OpenCourseWare, Mars 2020/Perseverance