Ocean chemistry and deep-sea sediments

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A large part of the decomposed materialis recycled to the area above thethermocline.1% only fo the sinking particles reach theseabed and from this only a fractionsurvives.
Marine snowThe marine snow is composedof aggregates of smallparticles.Due to the larger size it is amechanisms to get particlessinking faster to the seabed.Marine snow is mostly foundwhere there is a highbiological productivity.
Page 1 and 2: Ocean chemistryanddeep-sea sediment
Page 3 and 4: 1. Introduction - Type of deep-sea
Page 5 and 6: Biogenic sedimentsBeneath high-prod
Page 7 and 8: Sediments in the open ocean are cal
Page 9: Carbonate oozePhytoplankton - Cocco
Page 12 and 13: Gastropod molluscs- pteropodsAragon
Page 15 and 16: Cold-water coral reefsExamples of d
Page 17 and 18: Zooplankton - Radiolaria
Page 20 and 21: Calcareous and Siliceousmicrofossil
Page 22 and 23: Nutrients and δ 13 C13δ C =1313(
Page 24: Modern and glacial Atlantic interme
Page 28 and 29: Clay mineralsKaolinite is formed by
Page 30: Turbidites
Page 33: LGM ice sheet extentIRD input
Page 37: Sedimentation rates
Page 40 and 41: 2. Chemical cycles in the Oceans
Page 42 and 43: Steady state oceanWhat do the nutri
Page 44 and 45: Dissolved constituents arecoming fr
Page 48 and 49: Phosphate distribution in oceansat
Page 50 and 51: Upper right: Nutrients areenriched
Page 52 and 53: 3. Accumulation of pelagic biogenic
Page 54 and 55: Preservation of pelagic carbonatese
Page 56 and 57: 1 2Ca 2+ concentrations inseawater
Page 58 and 59: Preservation of pelagic carbonatese
Page 60 and 61: The Lysoclineand the Carbonate Comp
Page 62 and 63: SUMMARY:• The solubility of calci
Page 64 and 65: Transport and deposition of dissolv
Page 66 and 67: Water mass stratification hinderpar
Page 68 and 69: Sedimentation ratesdetermine time r
Page 70: What causes the Gulfstream?Circulat
Page 73 and 74: • Transport of sediments to the o
Page 75 and 76: Sediment drifts• A major step in
Page 78 and 79: Sediment waves or mud waves
Page 81 and 82: Bottom currents and sediment drifto
Page 83 and 84: Downslope transport by gravitation
Page 85 and 86: IntroductionTwo factors are crucial
Page 87 and 88: Tsunami deposits on landIcelandStor
Page 89 and 90: Continental margin slope failuresDo
Page 91 and 92: Slide headwalls ArcticShelf
Page 93 and 94: Rotational slumps/faults at Stornes
Page 95 and 96: Glide planes and sediment typesThe
Page 97 and 98:
Debris flow
Page 101 and 102:
Downslopesedimenttransport•TMF•
Page 103 and 104:
Sidescan Sonar and Seismic Images
Page 105 and 106:
Continental margin slope failuresDo
Page 107 and 108:
Solsikke - Seabed topographySlide d
Page 109 and 110:
Key questions for the understanding
Page 111 and 112:
Slope angles - Section B
Page 113 and 114:
Summary•Geological, morphological
Page 115 and 116:
Mienert, J. & Weaver, P.P.W., eds.,
Page 117 and 118:
Ice margin 18 000 BPGrand BanksSour
Page 119 and 120:
Scotian Slope multibeamDownloaded f
Page 121 and 122:
From Pickrill et al., 2001. OTC pap
Page 123 and 124:
Upper and middle slope canyonseast
Page 125 and 126:
Single channel airgun profile over
Page 127:
Slope canyon incisions and sediment
Page 130 and 131:
Diagenesisof sediments after burial
Page 132:
Page 136 and 137:
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Ocean chemistry and deep-sea sediments

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