Organic carbon in marine sediments is a critical component of the global carbon cycle, and
its degradation influences a wide range of phenomena, including the magnitude of carbon …

The vast majority of freshly produced oceanic dissolved organic carbon (DOC) is derived
from marine phytoplankton, then rapidly recycled by heterotrophic microbes. A small fraction …

Abstract The Yangtze River, the largest river in Asia, plays a crucial role in linking
continental and oceanic ecosystems. However, the impact of natural and anthropogenic …

Iron (Fe) minerals constitute a major control on organic carbon (OC) storage in soils and
sediments. While previous research has mainly targeted Fe (oxyhydr) oxides, the impact of …

Although sulfur cycling in acid mine drainage (AMD)-contaminated rice paddy soils is critical
to understanding and mitigating the environmental consequences of AMD, potential sources …

Complexes with low-molecular-weight thiols are crucial species of methylmercury (MeHg)
excreted by anaerobic Hg-methylating microbes, notably, MeHg–cysteine (MeHg–Cys). As …

The chemical nature and stability of reduced dissolved organic sulfur (DOSRed) have
implications on the biogeochemical cycling of trace and major elements across fresh and …

Abstract Ocean Anoxic Event 2 (OAE2) was a period of dramatic disruption to the global
carbon cycle when massive amounts of organic matter (OM) were buried in marine …

Sulfate inputs to the Florida Everglades stimulate sulfidic conditions in freshwater wetland
sediments that affect ecological and biogeochemical processes. An unexplored implication …

Cold seeps with methane-rich fluids leaking out of the seafloor usually support massive
biomass of chemosynthetic organisms and associated fauna. A substantial amount of …