alginite

(redirected from Amorphous organic matter)

alginite

[′al·jə‚nīt]
(petrology)
References in periodicals archive ?
The groundmass surrounding the glass clasts and crystal fragments seem to be flushed with organic matter with different sizes and structures showing different degrees of biodegradation and alteration to amorphous organic matter (AOM).
Amorphous organic matter consisted predominantly of nondescript, brownish material that might have included lining of the stomach, mucous, or ingested materials in advanced stages of digestion and beyond visual identification.
Type I kerogen mainly originated from planktonic green algae or amorphous organic matter [21].
We made smear slides every 15 cm along the core and estimated percentages of clastic, authigenic, and biogenic components, organic matter, and aquatic amorphous organic matter to determine the core's composition and to establish where changes in the core's composition occurred.
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.
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).
And not only did the deep ocean flux of biogenic materials - skeletal parts of microscopic plants and animals, fecal pellets, and amorphous organic matter - vary seasonally.
The Zaluch Gorge Section is composed of 45-50% phytoclasts, 35-30% playnomorphs, 5-10% amorphous organic matter and 5-10% with rare occurrences of sporangial mass and leaf epidermal tissues.
Marine amorphous organic matter, Zaluch section, Sample ZK2,