BIOGRIP – Isotope Course
Isotope Geochemistry and Instrumental Applications
This course introduces the conceptual and analytical foundations of isotope geochemistry, focusing on the physical basis of isotopic variation, measurement principles, and the significance of isotopic systems in understanding Earth and environmental processes.
DAY 1 β Theoretical Foundations
Session 1: Introduction to Isotope Geochemistry
π 12:30 β 14:00
- What are isotopes?
- Chemical Elements/Natural Abundances/atomic mass vs. isotope mass
- Radiogenic vs Stable Isotopes
Break β 14:00 β 14:15
Session 2: Isotopes in Earth Systems
π₯ 14:15 β 16:00
- Stable Isotopes – Overview
- Sr isotopes β principles and fractionation
- Delta Notation
- C and O isotopes/mass fractionation and isotope notation (Ξ΄, Ξ΅, ratios)
π DAY 2 β Radiogenic Isotopes, Trace Elements & Applications
Session 3: Radiogenic Isotope Systems
π 9:00 β 10:30
- U-Pb, Rb-Sr, Sm-Nd, Lu-Hf: decay, closure, applications
- Isochrons, Concordia diagrams
- Application to geochronology, provenance, and tectonics
Break β 10:30 β 11:00
Session 4: Analytical Techniques β Theory
π 11:00 β 12:00
- Overview: TIMS, MC-ICP-MS, SIMS, LA-ICP-MS
- Sample prep & chemical separation basics
- Matrix effects, isobaric interferences, and correction strategies
Lunch β 12:00 β 13:00
Session 5: U-Pb Carbonate and Accessory Mineral Dating
π 13:00 β 14:30
- U-Pb in calcite, titanite, zircon: methods & challenges
- Common Pb correction (Tera-Wasserburg, 204Pb vs 207Pb)
- Case study: Orthoceras, RioM-1, or South Atlantic carbonate sequences
Break β 14:30 β 14:45
Session 6: Trace Element Analyses and Quantification
π₯ 14:45 β 16:30
- LA-ICP-MS trace element: resolution, calibration, standards
- Equipment, Instrumentation
- Applications: Minerals and Fusion Discs
- Trace Element Mapping
- Data processing workflows
π DAY 3 β Biogrip Launch and Talks with Invited Speakers
Session 7: Speakers
π₯ 9:00 β 12:00
- Ryan Tucker 9 – 9:30 – Surviving a Super Greenhouse
- John Clemens 9:45 – 10:15 – Dating Magmatic Events at Ultra-High Spatial Resolution
- Break 10:15 – 10:30
- Ryan Cloete 10:30 -11:00 – From Source to Sink: Tracing Oceanic Processes with Iron (Fe) Isotopes
- Chris Harris 11:15 – 11:45 – Oxygen isotope evidence for recycling of the crust into the mantle
