Which mineral cycle is most accelerated when coastal upwelling weakens due persistent high-pressure systems?

💡 Explanation

When upwelling weakens, less deep, nutrient-rich water reaches the surface, which reduces primary productivity, leading to soluble phosphate accumulating at the bottom sediment because fewer phytoplankton incorporate it. Therefore phosphate retention increases, rather than calcium dissolution, iron sedimentation or seafloor nitrate reduction, that rely on sustained surface productivity and redox interfaces.

• Which consequence results when wind-deposited loess deposits experience prolonged saturation?
• Which mechanism causes increased sediment deposition in the cutoff area of a forming oxbow lake?
• Which phenomenon frequently results when tectonic plates slide past each other along a transform fault?
• Which process limits cirque glacier downcutting rates significantly?
• Which landscape feature primarily results due to solifluction processes in regions with permafrost?
• Near subduction plate boundaries, which risk increases when fault locking intensifies?