alginite

(redirected from Amorphous organic matter)

alginite

[′al·jə‚nīt]
(petrology)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The constituent Phytoclasts, Amorphous organic matter, pollen and spores were studied, and their respective percentages are used to assign depositional environment to these rhythmite deposits.
The model thought that organic matter is a kind of heterogeneity macromolecular polyelectrolyte on the composition and structure, which is made up of rubber phase (the region of soft carbon structure or amorphous organic matter) and glass phase (the region of rigid carbon structure or dense organic matter).
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).
Contents of each sample were visually examined, and the percentage of the total quantity was estimated for each of the following six categories: amorphous organic matter; inorganic matter; plant; fish; invertebrate; other.
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).
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).
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 palynofacies analysis shows a high percentage of amorphous organic matter (AOM), indicating a deep marine to an outer/middle ramp environment under suboxic-anoxic distal basin condition.
The palynofacies PFPS-1 and PFZS-1 are characterized by high percentages of phytoclasts when compared to amorphous organic matter and suggest marginal dysoxic-anoxic shelf settings.
Palynofacies analysis also indicated that Datta shales are rich in kerogen macerals, including inertinite, vitrinite, amorphinite ( Amorphous Organic Matter) with minor liptinite (i.e.