biogenous - silecous

Biogenous - Silecous• Found near Upwelling Areas

SeaWifs Satellite

Biogenous - Silecous• Found near Upwelling Areas

SeaWifs Satellite

Biogenous - Silecous• Found near Upwelling Areas South Africa: southwest coast

Biogenous - Silecous

Biogenous - Carbonate

Foram (animal)

Coccolithophore

Biogenous - Carbonate

Southern England: White Cliffs of Dover

Biogenous - Carbonate

Biogenous - Carbonate

Biogenous

Fecal Pellet: 0.008 in

• How long do they take to settle?

Biogenous• Are source of oceanic hydrocarbons

Lithogenous and BiogenousDeep ocean floor sediments (beyond continental margin)

Clay is most abundant in Pacific

CaCO3 ooze most abundant in Atlantic

CaCO3 ooze most abundant in Indian

World: Oceans: ~ 48% CaCO3, 38% clay, 14% silica ooze

Hydrogenous Sediments• Comes from dissolved material in the water

Manganese Nodules

Hydrogenous Sediments• Manganese Nodules

Hydrogenous Sediments• Manganese Nodules

Hydrogenous Sediments• Manganese Nodules

Hydrogenous Sediments• Phosphorites