Surface horizons of both profiles contain primarily a mixture of yellowish, amorphous organic matter (highly decomposed organic matter) and recognisable organic tissues and plant organs (less decomposed fibre).
fibres) and more yellow, gelatinous, amorphous organic matter (Figs 2a, b and 3a, b).
A common characteristic is the high Na, Cl, and S contents, indicating the capacity of the amorphous organic matter to scavenge and retain these elements from seawater.
12m abundance of pores of organic Very fine sand of organic tissues, residues and quartz, equant, granular in areas organic material, angular, fresh, richer in amorphous up to several cm <2% of volume organic matter, long (65%); some moderately planar voids in separated, granules polymorphic organic of medium sand size material, fine sand size, accommodated (5%); compound packing voids and star-shaped vughs due to welding of amorphous organic matter aggregates (10%) Granular in areas 80%, packing pores of Oat, depth 0.
Nine palynodebris categories were identified using a transmitted light microscope: amorphous organic matter, marine palynomorphs, black debris, yellow-brown debris, brown-black debris, cuticles, plant tissues, wood, and sporomorphs (spores and pollen) (Table 2).
The organic debris recovered in the lime mudstones appeared as very fine-grained, unidentifiable specks under the microscope (palynofacies 1), while the wackestones and packstones contained identifiable, larger palynodebris in addition to amorphous organic matter (palynofacies 2).
The latter group of sediments are characterized by an abundance of wood and black debris, unlike the marine sediments which have abundant amorphous organic matter (Figure 6).