A naturally occurring inorganic solid with a crystalline structure and a specific chemical composition. Over 2,000 types of minerals have been classified. Mineralization Decomposition of organic matter into its inorganic elemental components. Mississippian Geologic period that occurred roughly 320 to 360 million years ago. During this period, insects undergo major speciation and ferns first appear.
Trees become a dominant plant form on continents.
Mistral Term used to describe a katabatic wind in southern France. Mixed Tide Tides that have a higher high water and lower high water as well as higher low water and lower low water per tidal period . Mode Statistical measure of central tendency in a set of data. The mode is the most frequently occurring value in a data set. Data sets can contain two or more mode values that occur with the same frequency.