Relative roles of monsoon driven productivity and deep-water circulation in organic carbon burial in the Arabian Sea during the last glacial cycle

Coupling of N2 Fixation and Denitrification and Their Spatial Extent in the Arabian Sea Over the Last Glacial‐Interglacial Period

The ocean nitrogen cycle is influenced by climatic conditions, which regulate atmospheric greenhouse gases and generate feedback effects. These feedbacks occur through the release of nitrous oxide and alterations in the fixed‐nitrogen inventory, which in turn regulates carbon sequestration. The Arabian Sea hosts an int...

Role of oceanic iron biogeochemistry in atmospheric CO2 variability between the last glacial maximum and the holocene

During the last glacial cycle, atmospheric CO2 varied by about 80–100 ppmv between glacial and interglacial periods. A substantial fraction of this change is thought to reflect variations in the strength of the marine biological pump, driven in part by changes in iron (Fe) supply from mineral dust to highnutrient, low-...

Biogenic silica fluxes in the seasonally ice-covered Northwind Ridge, western Arctic Ocean: drivers and implications for the biological carbon pump.

The silica cycle is intimately coupled with marine food-web dynamics, biogeochemical transformations, and the efficiency of the biological carbon pump (BCP). To elucidate the factors controlling biogenic silica (bSiO2) flux and its role in carbon export, we conducted a year-long (August 2008-September 2009) sediment tr...

Carbon and nitrogen isotopes reveal organic matter provenance and late holocene dynamics off northeastern Hainan Island

Geochemical proxy records on terrestrial input, redox conditions, and organic matter preserved in a tropical paleo-lagoon during the mid-Holocene (Laguna de Bai, Philippines)

Enhanced organic carbon burial in the Songliao paleo-lake of northeastern China facilitated Late Cretaceous global cooling

Organic carbon (OC) burial represents a major long-term sink in the global carbon cycle; however, the role of continental lakes in regulating the deep-time carbon cycle and climate remains poorly constrained. The Songliao Basin in northeastern China developed into one of the world’s largest lake systems during the Late...