Decoding the Tweet _ Practical Criticism in the Age of Hashtag.pptx
Carbonates overview
1. GEOL 325: Stratigraphy & Sedimentary Basins University of South Carolina Spring 2005 Professor Chris Kendall EWS 304 kendall@sc.edu 777.2410 An Overview of Carbonates
96. Influx of Magnesium Rich Continental Ground Waters Influx of sea water Evaporation of mixed Waters 1. Aragonite 2. Gypsum 3. Anhydrite 4. Dolomite 5. Halite accumulate in this order
113. Global Climate Cycles Global climatic cycles, referenced to geologic periods (yellow), megasequences (light purple), sea level cycles (blue), & volcanic output (dark purple). (Redrawn & modified L. Waite, 2002 after Fischer, 1984)
114. Frakes et al. (1992) have alternating cold & warm states ("cool" & "warm" modes) at comparable time scales to Fischer (1984) cycles but propose older portion of Mesozoic greenhouse (Middle Jurassic to Early Cretaceous) has a cool climate, & presence of seasonal ice at higher latitudes (after L. Waite, 2002) Phanerozoic Global Climate History