Marine Sediments

This introductory lecture examines the origins, classification, transport, composition, and distribution of marine sediments. It also explains how sediment cores record Earth’s climate, ocean circulation, tectonic history, and biological changes, and discusses marine sediment resources.

Syllabus

Chapter 4 Lecture
Chapter Overview
Classification of Marine Sediments
Marine Sediment Collection
Paleoceanography and Marine Sediments
Examining Ocean Sediment Cores
Marine Sediment Classification
Lithogenous Sediment Transport Mechanisms
Lithogenous Quartz and Wind Transport
Grain Size
Texture and Environment
Sorting
Sediment Distribution
Neritic Lithogenous Sediments
Pelagic Deposits
Biogenous Sediment Composition
Silica in Biogenous Sediments
Diatomaceous Earth
Calcium Carbonate in Biogenic Sediments
Distribution of Biogenous Sediments
Neritic Deposits
Carbonate Deposits
Calcareous Ooze • CCD - Calcite compensation depth Depth where Caco, readily dissolves
Sea Floor Spreading and Sediment Accumulation
Distribution of Modern Calcium Carbonate Sediments
Hydrogenous Marine Sediments
Manganese Nodules Cross Section and Accumulation
Phosphates and Carbonates
Metal Sulfides
Evaporites
Evaporative Salts in Death Valley
Cosmogenous Marine Sediments
Marine Sediment Mixtures