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"Pristine" aragonitic shells are geochemically altered
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Classroom Contents
Salty Tales of Diagenesis in Antarctica
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- 1 Intro
- 2 Stratigraphy, sedimentology, petrography, and geochemi
- 3 Ross Sea WAIS
- 4 McMurdo Dry Valleys
- 5 Lithofacies record subglacial to open mari environments Ice contact
- 6 Recurring stratigraphic motifs reflect clima conditions
- 7 Origin of cement: isotopic insights
- 8 "Pristine" aragonitic shells are geochemically altered
- 9 Some answers from ANDRILL First drilling project to include routine pore water sampling
- 10 Pore water profiles (AND-2A)
- 11 Ratios of conservative elements indicate by derived from seawater
- 12 Brine exclusion during sea ice formatios
- 13 Evaporation and freezing produce distinct relationships among Na-S04-Br
- 14 Data indicate that the brine is a product of seawater freezing
- 15 Clumped isotope paleothermometry
- 16 Temperature calibration using synthetic carbonates
- 17 Did cement in AND-2A precipitate from brig
- 18 How extensive is the brine?
- 19 Potential sites of brine formation in the McMurdo region
- 20 Mirabilite is present along coastlines in SMA Contains inclusions of marine sediment Sulfate isotopes consistent with marine origin
- 21 Timing of brine formation, cement precipite
- 22 Brine formation associated with Middle Miocene Climate Transition?
- 23 Ongoing work
