Terrigenous sediment
Geology
Isotopes of carbon
Isotope-ratio mass spectrometry
Organic matter
Gas chromatography
Cretaceous
Environmental chemistry
Stable isotope ratio
Mass spectrometry
Sedimentary depositional environment
Isotope analysis
Total organic carbon
Paleontology
Structural basin
Chromatography
Chemistry
Oceanography
Organic chemistry
Physics
Quantum mechanics
