Explore the principles and applications of clumped isotope geochemistry in this 29-minute AGU conference talk. Delve into the classic problems of isotope geochemistry and discover how clumping in carbonates provides a solution. Examine the reaction mechanisms, temperature dependence, and historical context of this technique. Learn about similar geothermometers and understand the limitations of clumped isotope analysis. Gain insights into the methodology, power, and modern applications of carbonate clumped isotopes, including their use in Phanerozoic temperature reconstructions. Discuss the challenges faced in the field over the past 13 years and explore future directions in clumped isotope geochemistry research.
Overview
Syllabus
Intro
Outline for today
Let's begin with a classic problem in isotope geochemistry
How do we get around this?
Clumping in carbonates
Exam this reaction more carefully
Why is clumping a function of temperature?
What is going on?
Thermometer?
History
Similar Geothermometers
When is clumping not a geothermometer/paleothermometer
Carbonate clumped isotopes: Methodology
Power of carbonate clumped isotopes
The modern start
Carbonate clumping: 2006
Example application: Phanerozoic T and
Challenges over the past 13 years
Double-edged sword
On the horizon
Taught by
AGU
