Figure 6From: Polyphosphates as a source of enhanced P fluxes in marine sediments overlain by anoxic waters: Evidence from 31P NMRSolid-state CP-MAS 31P NMR spectra of demineralized sediments from Site 2 stacked according to depth. Asterisks denote spinning side-bands. NMR operating parameters: Contact time 1 ms; recycle delay 4 s; 32 780 transients.Back to article page