¹⁵N/¹⁴N variations in Cretaceous Atlantic sedimentary sequences: implication for past changes in marine nitrogen biogeochemistry

Earth and Planetary Sciences

• Organic Carbon 100%
• Biogeochemistry 100%
• Sedimentary Sequence 100%
• Organic Matter 66%
• Isotopic Composition 33%
• Ocean Circulation 33%
• Terrestrial Origin 33%
• Marine Sediment 33%
• Phytoplankton 33%
• Marine Environment 33%
• Atlantic Ocean 33%
• Denitrification 33%
• Black Shale 33%
• Blue Green Algae 33%
• Euphotic Zone 33%
• Petrography 33%
• Claystone 33%
• Depositional Process 33%

Keyphrases

• Nitrogen Biogeochemistry 100%
• Terrestrial Organic Matter 33%
• Post-depositional Processes 33%
• Nitrogen Cycle 33%
• Marine Sources 33%
• Sedimentary Record 33%
• Marine-derived 33%