Giant submarine landslides
Article Abstract:
Submarine landslides are not particularly uncommon, and took place particularly frequently during the late glacial period, between 15,000 thousand and 25,000 thousand years ago. They happen especially where very large piles of unstable sediment accumulate. They can produce dense, turbulent flows full of sediment that travel very rapidly down the continental slope to deposit turbidites on the abyssal plains. Large events occur very infrequently, but the far-field danger of tsunamis is widespread.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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Stable isotope evidence for entry of sewage-derived organic material into a deep-sea food web
Article Abstract:
Municipal sewage dumped 2,500 meters underwater at a site 185 km off the New Jersey coast has accumulated on the sea floor and entered the benthic food web. Dispersal and dilution of the sewage have proved inadequate to prevent the accumulation. Urchins and sea-cucumbers feeding on surface deposits provide the point of entry into the food web. The sewage was detected through analysis of the ratios of certain isotopes.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
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Origins of photosynthesis
Article Abstract:
A hydrothermal hypothesis suggests the evolution of photosynthesis through small steps such as the development of phototaxis. Thermal radiations such as infrared rays induce a chemotrophic organism to develop phototaxis through the use of molecules resembling bacteriochlorophylls. These molecules undergo long-wavelength photosynthesis and subsequently evolve to give chlorophylls.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
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