Marine Sediments
The History of the Ocean
Topics
• Types of Marine Sediment
• Abyssal Clays
• Biogenous Oozes
• Global Distribution of Marine
Sediments
Topics
• Types of Marine Sediment
• Abyssal Clays
• Biogenous Oozes
• Global Distribution of Marine
Sediments
Types of Marine
Sediment
Marine Sediment
Marine Sediment
Two basic types of marine sediment:
Marine Sediment
Two basic types of marine sediment:
1. Continental margin sediment
Marine Sediment
Two basic types of marine sediment:
1. Continental margin sediment
2. Deep-ocean basin sediment
Sediment Characteristics
Sediment Characteristics
See significant differences in
Sediment Characteristics
See significant differences in
1. Particle size
Sediment Characteristics
See significant differences in
1. Particle size
2.Sources
Sediment Characteristics
See significant differences in
1. Particle size
2.Sources
3.Composition
Sediment Characteristics
See significant differences in
1. Particle size
2.Sources
3.Composition
4.Deposition rates
Continental Margin Sediments
Continental Margin Sediments
Continental Margin Sediments
Wide range of particle sizes
Continental Margin Sediments
Wide range of particle sizes
Primarily lithogenous sediment
Continental Margin Sediments
Wide range of particle sizes
Primarily lithogenous sediment
Primarily Al silicates
Continental Margin Sediments
Wide range of particle sizes
Primarily lithogenous sediment
Primarily Al silicates
Relatively high deposition rate
Most sediment is transported to the ocean
by river runoff
River Transport
Marine Sedimentary Deposits
Deep-Ocean Basin Sediments
Deep-Ocean Basin Sediments
Primarily fine-grain particles
Deep-Ocean Basin Sediments
Primarily fine-grain particles
Significant amounts of lithogenous, biogenous,
and hydrogenous sediments
Deep-Ocean Basin Sediments
Primarily fine-grain particles
Significant amounts of lithogenous, biogenous,
and hydrogenous sediments
Significant amounts of siliceous, calcareous,
and Al silicates
Deep-Ocean Basin Sediments
Primarily fine-grain particles
Significant amounts of lithogenous, biogenous,
and hydrogenous sediments
Significant amounts of siliceous, calcareous,
and Al silicates
Relatively low deposition rate
Deep-Ocean Basin Sediments
Deep-Ocean Basin Sediments
Two primary types of deep-ocean basin
sediments:
Deep-Ocean Basin Sediments
Two primary types of deep-ocean basin
sediments:
1. Abyssal clays
Deep-Ocean Basin Sediments
Two primary types of deep-ocean basin
sediments:
1. Abyssal clays
2.Biogenous oozes
Abyssal Clays
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Abyssal Clays