Fluxes, dynamics and chemistry of suspended particulate matter in a southeast Alaskan fjord

Thesis/Dissertation · Wed Jan 01 00:00:00 EST 1986

OSTI ID:5348972

Hong, G H

The weighted mean fluxes over the June 1982-October 1983 were 290, 519, 812, 1124 g m/sup -2/ yr/sup -1/, respectively, determined using sediment traps deployed at 40, 120, 300 and 375 m depth in the 380 m water column. The long-term sedimentation rate was estimated at average 589 g m/sup -2/ yr/sup -1/ from sediment /sup 210/Pb profiles. Substantial SPM input to mid-depths (below 100 m) from the side arms was noted. Thus, the flux measured at 120 m depth was designated as the primary flux of the SPM to the basin. The sediment focusing resulting from the V shaped basin does not appear to be important. Using particulate Al as a tracer, resuspension rate was estimated at some 30-80% of the vertical flux below 280 m depth. Based on the SPM dynamics, the non-conservative behavior of particulate biogenic matter, Mn and Fe was investigated using a primary-resuspended-altered flux model.

• Research Organization: Alaska Univ., Fairbanks (USA)
• OSTI ID: 5348972
• Resource Relation: Other Information: Thesis (Ph. D.)
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
IRON
WATER CHEMISTRY
LAKES
CONTAMINATION
MANGANESE
PARTICULATES
ALASKA
LEAD 210
MATHEMATICAL MODELS
SEDIMENTS
TRACER TECHNIQUES
WATER POLLUTION
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHEMISTRY
ELEMENTS
EVEN-EVEN NUCLEI
FEDERAL REGION X
HEAVY NUCLEI
ISOTOPE APPLICATIONS
ISOTOPES
LEAD ISOTOPES
METALS
NORTH AMERICA
NUCLEI
PARTICLES
POLLUTION
RADIOISOTOPES
SURFACE WATERS
TRANSITION ELEMENTS
USA
YEARS LIVING RADIOISOTOPES
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
520101 - Environment
Aquatic- Basic Studies- Radiometric Techniques- (-1989)