The role of mat-forming diatoms in the formation of Mediterranean sapropels
Article Abstract:
An electron-microscope investigation of a late Quaternary laminated diatomaceous sapropel in the deepest part of the moat of the Napoli mud volcano on the Mediterranean ridge has been linked with recent progress in the understanding of the ecology of mat-forming diatoms to create a model of the formation of organic-carbon-rich sapropels. It is clear that diatoms played a key role in sapropel formation. Evidence of high diatom production has often been interpreted as upwelling-related, but a study of the diatoms involved indicates an alternative explanation, with diatoms growing under conditions of sustained seasonal stratification.
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:
Climate and the conveyor
Article Abstract:
Three separate oceanic studies have established that the operations of the Atlantic Ocean's conveyor belt underwent rapid and recurring changes during the last glaciation. Results also suggest a correlation between changes in the operations of the Atlantic conveyor and climatic changes. The instability and erratic behavior of the Atlantic's conveyor as suggested by the results is consistent with the results achieved by simulations. Possible causes for the discrepancies in the results of the three studies are discussed.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
Early Oligocene initiation of North Atlantic deep water formation
Article Abstract:
Research is presented concerning the extent of the Southeast Faeroes drift which has been shown to extend for 120-kilometers in a direction parallel to the Faeroe-Shetland basin. The onset of deposition in the Oligocene epoch is discussed.
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: The potential consequences of pollinator declines on the conservation of biodiversity and stability of food crop yields
- Abstracts: Definitions of territoriality used in the study of variation in vertebrate spacing system. Resource-based territoriality in the butterfly Lycaena hippothoe and environmentally induced behavioral shifts
- Abstracts: Movements and survival of bald eagles banded in the Greater Yellowstone Ecosystem. Estimating the total number of birds using a staging site
- Abstracts: Meet the Herod bug. Proposal for vaccine lab gets a shot in the arm. Cancer comes under scrutiny in fresh genomics initiative
- Abstracts: Breezing into town. Statistical model leaves Peru counting the cost of civil war. When the chips are down