Nitrogen isotope ratios of Cretaceous Atlantic sedimentary sequences

• Main Authors: Rau, Greg H, Arthur, Michael A, Dean, Walter E
• Format: Dataset
• Language: English
• Published: PANGAEA 1987
• Subjects: 41-367; 75-530A; 93-603B; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg41; Leg75; Leg93; North Atlantic/BASIN; South Atlantic/RIDGE; North Atlantic
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.714244; https://doi.org/10.1594/PANGAEA.714244

At two locations in the Atlantic Ocean (DSDP Sites 367 and 530) early to middle Cretaceous organic-carbon-rich beds (black shales) were found to have significantly lower delta15N values (lower 15N/14N ratios) than adjacent organic-carbon-poor beds (white limestones or green claystones). While these...