The mystery of the sapropels
Article Abstract:
Recent research has made it possible to develop a scheme of events that seems to resolve contradictions surrounding sapropels, sediment layers in the Mediterranean Sea with high concentrations of organic carbon. It has been shown that sapropels are made up of regularly alternating pairs of laminae, one containing almost monospecific colonial diatoms and the other a mixed diatom assemblage with other minor components. This structure is thought to result from a seasonal cycle, with the mixed-composition laminae representing normal winter-spring production.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
Instabilities in sand ripples
Article Abstract:
Issues are presented concerning the instabilities which affect the perfect pattern formation of sand ripples in shallow water causing them to form deformations which are transverse or parallel to their crests.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2001
User Contributions:
Comment about this article or add new information about this topic:
Formation of coastline features by large-scale instabilities induced by high-angle waves
Article Abstract:
Large scale instabilities induced by high angle waves were studied using a numerical model.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2001
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Give in the filaments. Formation of 'bullets' by hydrodynamical instabilities in stellar outflows. Flexible filaments in a flowing soap film as a model for one-dimensional flags in a two-dimensional wind
- Abstracts: The nature of the solar wind. Rapid acceleration of the polar solar wind
- Abstracts: Calcium-independent potentiation of insulin release by cyclic AMP in single beta-cells. Neuropeptide Y functions as a neuroproliferative factor
- Abstracts: A stop-codon mutation in the BRI gene associated with familial British dementia. Pathways to neuronal injury and apoptosis in HIV-associated dementia
- Abstracts: Knocking out memory's door. Essential role of neocortical acetylcholine in spatial memory. Repression revisited