The Barrier Zones in the Ocean

Mechanical (Hydrodynamic) Barriers....Pages 7-13
Physicochemical Barriers....Pages 15-24
Salinity Barriers....Pages 25-28
Temperature, Density and Dynamic Barriers....Pages 29-33
Geochemical Barriers That Exist Independently of Their Position in Space (Autonomic Barriers)....Pages 35-36
Geochemical Barrier Zones....Pages 37-65
Geochemical Landscapes....Pages 67-68
River-Sea....Pages 71-135
Coast-Sea....Pages 137-162
Hydrofronts....Pages 163-181
Front of Coastal Upwelling....Pages 183-200
Ice-Water Boundary....Pages 201-219
Hydrothermal Fluid-Seawater Barrier Zone....Pages 221-248
Ocean-Atmosphere....Pages 249-261
Photic Layer....Pages 263-285
The Thermocline and Pycnocline as GBZs....Pages 287-302
Oxygen Minimum Layer....Pages 303-312
Redox (Eh) Barrier in Seawater....Pages 313-334
Salinity Barrier....Pages 335-343
Calcium Carbonate Compensation Depth (CCD)....Pages 345-361
The Water-Bottom Interface....Pages 363-411
Redox (Eh) Barrier in Sediments....Pages 413-423
The Upper Active Sediment Layer....Pages 425-435
Lithogeochemical Areas, Regions and Provinces....Pages 437-439
General....Pages 443-445
Mechanical Barriers and Placer Formation....Pages 447-453
River-Sea GBZs and Formation of Oil Hydrocarbons....Pages 455-456
River-Sea GBZs and Formation of Pseudo-oolitic and Oolitic Hydrogoethite-Chamosite Ferruginous Ores and Glauconite....Pages 457-473
Front of Coastal Upwelling and Accumulation of Phosphorites....Pages 475-484
Hydrofronts and Ore Formation in Pelagic Areas of the Ocean....Pages 485-487
The Halocline (Pycnocline) and Accumulation of Shallow-water Ferromanganese Crusts and Nodules....Pages 489-494
The Oxygen Minimum Layer and Development of Cobalt-Manganese Crusts....Pages 495-505
Geochemical Barrier Zones and Processes of Accumulation of Carbonate-Oxic Manganese Ores....Pages 507-524
Ore Formation at the Redox (Eh) Barrier in Sediments....Pages 525-542
Geochemical Barrier Zones and Formation of Siderite....Pages 543-545
Hydrothermal Process and Ore Formation....Pages 547-556
Calcium Carbonate Compensation Depth and Formation of FMNs....Pages 557-558
Geochemical Barrier Zones and Formation of Sapropel....Pages 559-564
Predicting and Prospecting for Ores of Marine Genesis....Pages 565-568
Second-Order Boundaries....Pages 571-572
First-Order Boundaries....Pages 573-590
Internal Boundaries....Pages 591-593