Computer Science
Scientific paper
Apr 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992gecoa..56.1753h&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 56, Issue 4, pp.1753-1757
Computer Science
6
Scientific paper
Although dissolved organic matter (DOM) in seawater constitutes one of the major reservoirs of reduced carbon on earth, the biochemical and geographic origins of this material and its hydrophobic humic component remain unclear. Rivers have been suggested as a potentially important source of marine DOM, but this implication has not yet been systematically tested by direct comparisons of the bulk structural characteristics of DOM isolated from representative ocean reservoirs and their major river sources. We report here such a comparison and find that dissolved humic substances isolated from surface and deep seawater in the East Equatorial and north Central Pacific are enriched in nitrogen and 13 C and depleted in unsaturated carbon with respect to counterparts from the Amazon River system. Based on these observations, riverine dissolved humic substances appear to comprise a small fraction of seawater humic substances and therefore must be efficiently and rapidly removed from the ocean.
Ertel John R.
Hatcher Patrick G.
Hedges John I.
Meyers-Schulte Kathleen J.
No associations
LandOfFree
A comparison of dissolved humic substances from seawater with Amazon River counterparts by 13 C-NMR spectrometry does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A comparison of dissolved humic substances from seawater with Amazon River counterparts by 13 C-NMR spectrometry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A comparison of dissolved humic substances from seawater with Amazon River counterparts by 13 C-NMR spectrometry will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1734995