Fig. 11

Calcite in dust particles. a Fibrous calcite aggregates filling the cracks of dust particles collected in Korea, 18 Mar 2014. SEM image. Long needles are borosilicate fibers of dust filter. b Fibrous calcite mixed with ISCMs and discrete illite in Asian dust (11 Mar 2004). TEM image of particle loaded on lacey carbon. c Radiating columns of gypsum replacing calcite in a calcareous Asian dust particle (18 Mar 2014). TEM image of FIB lamella. d Gypsum and calcite in a composite Asian dust particle (18 Mar 2014). TEM image of FIB lamella. Ab = albite, Cal = calcite, Chl = chlorite, Dol = dolomite, Gp = gypsum, Ilt = illite, Kfs = K-feldspar, Qz = Quartz