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Lecture 2 – Ocean Zones and Basins. Atlantic Ocean Pacific Ocean Indian Ocean Arctic Ocean Oceans of the World.

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Presentation on theme: "Lecture 2 – Ocean Zones and Basins. Atlantic Ocean Pacific Ocean Indian Ocean Arctic Ocean Oceans of the World."— Presentation transcript:

1 Lecture 2 – Ocean Zones and Basins

2 Atlantic Ocean Pacific Ocean Indian Ocean Arctic Ocean Oceans of the World

3 Northern and Southern Hemispheres Southern - 81% Ocean Northern - 61% Ocean Earth – 71% ocean

4 The World’s Water

5 Volumes of the Ocean Basins Volume (km 2 x 10 6 )

6 Single Ocean Concept - Antarctic circulation

7 Single Ocean Concept - Antarctic circulation

8 Seas of the World 1 - Mediterranean

9 Seas of the World 2 - North Sea

10 Seas of the World 3 - Caribbean

11 Seas of the World 4 - China

12 Seas of the World 5 - Sea of Okhotsk

13 Seas of the World 6 - Bering Sea

14 Other named seas Arabian Coral Tasman Greenland Norwegian Barents Kara Laptev East Siberian Chukchi Japan Yellow East China Laborador Beaufort Red Arafura Andaman Java CelebesBanda TimorSulu Black Caspian Celtic White Aegean Adriatic Sea of Cortez Phillipine Aral

15 Topographical Features of Ocean Basins

16 Epipelagic Mesopelagic Bathypelagic Abyssalpelagic NeriticOceanic Photic(200 m) Disphotic(1000 m) Aphotic (1000 m) Pelagic Benthic Littoral (intertidal) Sublittoral Bathyl Abyssal Hadal

17 Topographical Features of Ocean Basins continental shelf shelf break continental slope abyssal plain

18 Topographical Features of Ocean Basins continental shelf shelf break continental slope abyssal plain

19 Hadal Zone Mariana Trench

20 Hadal Zone Mariana Trench

21 Hadal Zone Mariana Trench Xenophyophore (protist)

22 Abyssal Plain

23

24 Other features of the abyssal plain Ridge Rift Seamount Guyot Abyssal hills Tectonic/volcanic Sedimentary Seamount - mountain in the sea, > 100 m high and not based on a continental shelf. Guyot – isolated seamount with a flat top over 200 m below the surface

25 Submarine rift on land

26 Depositional Material in the Oceans 1. Terrigenous - Components ClayQuartz

27 Depositional Material in the Oceans 1. Terrigenous - Methods of Deposition Sediment Transport

28 Depositional Material in the Oceans 1. Terrigenous - Methods of Deposition Wind Erosion

29 Depositional Material in the Oceans 1. Terrigenous - Methods of Deposition Volcanic Activity

30 Depositional Material in the Oceans 1. Terrigenous - Methods of Deposition

31 Depositional Material in the Oceans 1. Terrigenous - Methods of Deposition

32 Depositional Material in the Oceans 1. Terrigenous - Methods of Deposition Fans can be extensive

33 Depositional Material in the Oceans 1. Terrigenous - Methods of Deposition

34 Depositional Material in the Oceans 2. Biogenous CaCO 3 from Corals and Molluscs Silica (Si) from Diatoms

35 Depositional Material in the Oceans 3. Hydrogenous - Precipitated directly from seawater 4. Cosmogenous

36 Continental Slope

37 Continental Shelf

38

39 Intertidal/Littoral Zone

40 Next time Physical and Chemical Properties of Seawater

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