Clumped and Intramolecular Isotopic Perspectives on the Behavior of Organic and Inorganic Carbon in the Shallow Crust and Deep Biosphere
<p>Although the upper crust is the most accessible swath of the subsurface, the geochemical processes therein are challenging to observe. Here, I use site-specific and ‘clumped’ isotope analyses (where multiple rare, heavy isotopes are bound in single molecules) of carbonates and organic solid...