Outline
Lecture 1:
1. Review of light stable isotopes
2. O and H isotopes: origin of hydrothermal water? Multiple fluids?
3. S isotopes: Origin of sulfur? Multiple sources?
Isotope Geochemistry Lecture 1.pdf
Lecture 2:
1.Physics of porphyry copper deposit formation
Fluid inclusion evidence
Behavior of Cl
2. Review of stable Cl isotope studies
3. Suggestions for future work
Isotope Geochemistry lecture 2.pdf
Lecture 3:
1.Seawater
2.Geochemical cycle of chlorine
3.Evolution of ocean water
4.Evaporites through time
5.Basin brines
6.A Mississippi Valley type deposit
Isotope Geochemistry lecture 3.pdf
Lecture 4:
1.Laboratory intercomparisons
2.Examples of extreme δ37Cl in continental settings
Chatham group sediments, North Carolina, USA
Salt occurrences, Atacama Desert, Chile
China Lake, California, USA
Chinese basins Jurassic and recent
Safford Basin, Arizona, USA
3. Fractionation and separation mechanisms
Isotope Geochemistry lecture 4.pdf
Lecture 5:
1. Introduction to O and H isotopes in groundwater
2. Stable isotopes and dams – a dating tool
3. Stable Isotopes reveal the influence of paleogeography on groundwater flow
Isotope Geochemistry lecture 5.pdf
Lecture 6:
1. This proved disappointing – groundwater isn’t like that!
Even for other researchers’ isoscapes?
2. Too much variation due to evaporation; no consistent geographic distribution; in some cases, relationship to depth
3. Look at general patterns in the entire dataset for each basin
4. Interpret emerging patterns in terms of recharge mechanism
5. Explain different mechanisms in terms of process
Isotope Geochemistry lecture 6.pdf
Lecture 7:
1. Review of stable O, H isotopes
2. Tucson data set
3. Amount effects in precipitation stable isotopes
4. Amount effects in Tucson precipitation, and applications
5. Amount effects at other sites
6. Conclusions
Isotope Geochemistry lecture 7.pdf