Elastic Properties of Natural Sea Surface Films Incorporated with Solid Dust Particles: Model Baltic Sea Studies

Figure 10

Results of stress-relaxation experiments: Π(𝑡) decay dependence of surface pressure versus time after a step rapid (Δ𝑡=0.3 s) relative film area Δ𝐴/𝐴(=0.16) compression, for a marine film sample collected at Jelitkowo on 11.12.2006 (sample state: 𝑇=19°C, pH = 8.2) as a reference particle-free surface (a), and for composite surface (b), that is, monoparticulate talc layer covered the same seawater interface (Δ𝐴/𝐴=0.17; Δ𝑡=1.2 s).

(a)

(b)