ENVIRSC 2E03 Lecture Notes - Lecture 2: Diamictite, Breccia, Skewness
16 Oct 2018
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Document Summary
Biogenic material: different rocks may include shells, skeletal material, plant. Silicates are dominant group in igneous sedimentary and metamorphic rocks. Most rock forming sulfate minerals occur in sedimentary. Important sedimentary rocks, and can form metamorphic rock marble. Biogenic material: may include shells, skeletal material, plant debris, The mineral groups that contribute most to the rock record are the silicates and the carbonates. Silicate mineral- a silicate mineral has a silicate tetrahedron (sio4) as basic chemical property. Carbonate mineral- minerals have calcium, magnesium, iron, orother ions attached to a carbonate ion (co3. Sulfate minerals- sulfate minerals have calcium or other ions attatched to a sulfate ion (so4. Halide minerals- have positive ions such as sodium and potassium attached to negative ions such as chlorine and bromine. Oxide minerals- oxide minerals have metallic ions combined with oxygen. Sulfide minerals- have metallic ions combined with sulfur.
