The term organophosphate (OP) refers to a diverse group of chemicals that are found in
hundreds of products worldwide. As pesticides, their most common use, OPs are clearly …

Abstract Models test our understanding of processes and can reach beyond the spatial and
temporal scales of measurements. Multi-component Reactive Transport Models (RTMs) …

The base of Earth's critical zone (CZ) is commonly shielded from study by many meters of
overlying rock and regolith. Though deep CZ processes may seem far removed from the …

Headwater catchments are the fundamental units that connect the land to the ocean.
Hydrological flow and biogeochemical processes are intricately coupled, yet their respective …

INTRODUCTION Oxidative weathering of pyrite, the most abundant sulfide mineral in Earth's
crust, is coupled to the biogeochemical cycles of sulfur, oxygen, carbon, and iron. Pyrite …

The shallow and deep hypothesis suggests that stream concentration‐discharge (CQ)
relationships are shaped by distinct source waters from different depths. Under this …

Trees, the most successful biological power plants on earth, build and plumb the critical
zone (CZ) in ways that we do not yet understand. To encourage exploration of the character …

Rivers carry the dissolved and solid products of silicate mineral weathering, a process that
removes CO 2 from the atmosphere and provides a key negative climate feedback over …

Much work has been undertaken quantifying the abundance of phyllosilicate clay minerals
in soils, sediments and rocks of Earth's crust. However, no detailed global compilation of …

Lateral carbon flux through river networks is an important and poorly understood component
of the global carbon budget. This work investigates how temperature and hydrology control …