Results 261 to 270 of about 297,000 (310)
Some of the next articles are maybe not open access.
2014
Deep-sea sediments typically have sedimentation rates less than 30 m/10 years, and rates as low 0.1 m/10 years have been reported. The slow sedimentation rates and unusual sediment compositions reflect the low fluxes of aluminosilicates eroded from continents. The terrigenous material that does deposit is often windblown dust.
openaire +1 more source
Deep-sea sediments typically have sedimentation rates less than 30 m/10 years, and rates as low 0.1 m/10 years have been reported. The slow sedimentation rates and unusual sediment compositions reflect the low fluxes of aluminosilicates eroded from continents. The terrigenous material that does deposit is often windblown dust.
openaire +1 more source
2020
Mining the extensive accumulations of minerals on the seafloor of the deep ocean might provide important resources, but it also has the potential to lead to widespread environmental impacts. Some of these impacts are unknown, and some may differ for the three main resource types: polymetallic nodules, seafloor massive sulphides, and polymetallic ...
Jones, Daniel +2 more
openaire +2 more sources
Mining the extensive accumulations of minerals on the seafloor of the deep ocean might provide important resources, but it also has the potential to lead to widespread environmental impacts. Some of these impacts are unknown, and some may differ for the three main resource types: polymetallic nodules, seafloor massive sulphides, and polymetallic ...
Jones, Daniel +2 more
openaire +2 more sources
Deep-Sea Pleistocene Biostratigraphy
Science, 1966The first detailed paleontological analysis of a deep-sea pistoncore from the Caribbean Sea has been completed. The core, P6304-8, was raised from 3927 meters, east of Beata Ridge at 14°59′N, 69°20′W. Formerly, stratigraphic works in this area were based on studies of paleotemperature, measured by the oxygen isotope mass spectrometry method, or on ...
openaire +2 more sources
Deep sea navigation techniques
Marine Geophysical Researches, 1990Accurate navigation forms an essential part of all research at sea and the deep ocean imposes it’s own unique problems. This chapter discusses several of the techniques in current use on the research vessels of the Natural Environment Research Council (NERC), concentrating on those systems which provide global navigation facilities, as opposed to the ...
openaire +1 more source
Science, 1966
In the northeastern Pacific Ocean, north of 22°N and east of 180°W, a deep-sea p H maximum of 7.9 exists near 4000 meters. The effect of hydrostatic pressure on the dissociation constants of carbonic acid in sea water appears to be important in its formation.
openaire +2 more sources
In the northeastern Pacific Ocean, north of 22°N and east of 180°W, a deep-sea p H maximum of 7.9 exists near 4000 meters. The effect of hydrostatic pressure on the dissociation constants of carbonic acid in sea water appears to be important in its formation.
openaire +2 more sources
Biogenous Deep-Sea Sediments: Fractionation by Deep-Sea Circulation
Geological Society of America Bulletin, 1970There are two types of marginal seas: the lagoonal type with deep water outflow, and the estuarine type with deep water inflow. Lagoonal basins are characterized by waters that have low nutrient concentrations and high salinity and are well aerated; their sediments are rich in calcium carbonate.
openaire +1 more source
Integrating QSAR modelling and deep learning in drug discovery: the emergence of deep QSAR
Nature Reviews Drug Discovery, 2023Artem Cherkasov +2 more
exaly