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: Plummer, C. and McGeary, D (1991) Physical Geology, 5th edition, Chapter 1, Figure 1.11 (mid-oceanic ridge) * ... – PowerPoint PPT presentation

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Title: http://www.undersea.cn/Pages/deepsea/ds_4_oceanorigin.html


1
??????
????????
  • ???????
  • ????2011. 09.23

2
????
  • ????
  • ????????
  • ?????????

3
?????
http//www.undersea.cn/Pages/deepsea/ds_4_oceanori
gin.html
4
http//www.undersea.cn/Pages/deepsea/ds_4_seawater
1.html
5
????? (Origin of the ocean)
  • ?????,???????,??????????,??????,??????,?????????
  • ????????,????????????,???????????,????????????????
    ?????????,??,????????
  • ??????????????????HCl?HF?CO2?,??,????????????????

6
????????-??
????????????????,??H2O?????,????????????????,?????
????????? ?????????????????? 0???,?100
???,????????????????? ????????,?????????,?15?,???
??0???,?100 ???,?????????
http//tupian.hudong.com/a1_36_16_0130000017159912
1189160494036_jpg.html
7
???????????????????????????????14??????,?????97.3
, ?????2.1,????0.6,?????????????0.0001?
http//www.undersea.cn/Pages/deepsea/ds_1_waterres
ource.html
8
?? (ocean)
  • ?????????70
  • ?????3800m
  • ??? 1.4 1012 m3
  • ?????????

9
??????
  • ????
  • ????
  • ????
  • ????

10
??????
  1. ??????????97???
  2. ???????????????,??,????????????
  3. ????????,??????????,??,??????????
  4. ????????????????

11
  • 5.??????,??????,???????????,?????,???????,????????
    ,???????????

12
  • 6. ???????,??????????????,??????????,????????????,
    ???????????????????

13
????????
  • 1000???35????
  • 1902 ?,??(C., Forch,M. Knudsen, S.
    Sørensen)??????(salinity)???????-??350/00
  • P.S.U (Practical salinity unit)35 P.S.U
  • ??????34370/00 ?? 350/00
  • ??????1.?? 2.??
  • ??
  • ??????

14
(No Transcript)
15
????
  • ????????????????,??,??????????????,???????????
  • ?????????????????,???????????3538????????????????
    ????????????3537????
  • ????????????????,??,????42?????????????

16
http//www.undersea.cn/Pages/deepsea/ds_4_seawater
3.html
17
????
  • ????????,???????????????,????????????????????????
    ???,????????,????????????????,??CO2??????????????
    ??,??????????????????,???????????????,????????????
    ?

18
????????
  • ????????
  • ?????

19
http//www.undersea.cn/Pages/deepsea/ds_4_seawater
2.html
20
??????,??????????0.5,????????????????1000??????78
.5,????1000??????21?
21
???? (continental margin)
  • ?????????????????,??????????????,??????
  • ??? (continental shelf)
  • ???? (continental slope)
  • ???? (continental rise)
  • ?? ??? (trench)

22
http//www.undersea.cn/Pages/deepsea/ds_1_biospace
.html
23
????????3800??,?????????????????,??11022???????,??
??????????????????????????????????
http//www.undersea.cn/Pages/deepsea/ds_2_depth.ht
ml
24
? ? (trench)
???????????? (11020 ??),???????????? (5900 ??)
http//www.undersea.cn/Pages/deepsea/ds_2_trench.h
tml
http//www.29trip.com/jd/UploadFiles_jd/200808/200
80814214652340.jpg
25
???? (abyssal plain)
????????????,?????4600-5500??,????????????,??????,
?????1/1000??,???????????
http//www.undersea.cn/Pages/deepsea/ds_2_basin.ht
ml
26
???????
??????????????????????????,??????????????????????
??,?????????????????????,???????????,?????????????
???????????,????????????,????
???????????????????
27
????????
?????????(?????),???????????? (?????),???????????
,??????????? ???? Plummer, C. and McGeary, D
(1991) Physical Geology, 5th edition, Chapter 1,
Figure 1.11
28
??? (mid-oceanic ridge)
http//dunite.mr.nsysu.edu.tw/word-6-1.htm
29
??????
?????????? ,????23????????????,?????????????,????
????????????????????????????,??????,???????,??????
???,??????????
30
????????????????,??????????2550???,??13?????????
?U??V??????????????????????????,??????????,???????
?????????
31
????????
??????????????,???????(?)???????????,?????????????
???????,??????,?????????????????????????
32
(No Transcript)
33
(No Transcript)
34
http//www.kaiho.mlit.go.jp/info/books/report2007/
tokushu/p028b.html
35
??????
36
??????????
37
?????????
http//www1.kaiho.mlit.go.jp/KAIYO/tairiku/tairiku
.test.html
38
???????
  • ???????
  • ????2010. 10.01

39
????
  • ????????????
  • ??????
  • ????????
  • ???? ?????

40
?????
  • ????????????????????,?????????????????????????????
    ?????????????,??????,????????????????????,????,???
    ????????,????????,????????????????????,???????????
    ????????,??????????????,??????????,???????????????
    ?????????????????????,??????????? 

41
?????
  • ?????????,???????????????????????????????????,??
    ??????????????????????????????????????????????????
    ???????????????,?????????????

42
???????? (wave)
43
  • ????????????(restoring force) ??????
  • ?? (capillary wave)??(?????)?????,????1-2????????
    ?????(?????)??????
  • ??? (gravity wave) ????????????,??????????,??????
    ?????,?????????????????????,??????
  • ?? (Tsunami) ?????????,????????????,????????,????
    ??????,??????????????????,???????200??(???700??,??
    ?????)
  • ??????? (inertia-gravity wave)????(planetary
    wave )???(????)??????

44
???????? (tide)
?????????????,????????,????????(???)???(??)???????
???????????????????,???????????,????????????????,?
?????????
45
???????? (ocean current)
http//www1.kaiho.mlit.go.jp/KANKYO/KAIYO/kuroshio
/20000622/
46
  • ???????????????,?????????
  • ?? (turbulent flow) ?????????????????????????????
    ???????
  • ??????(gravity-wave induced current)
    ????????????,???????????????????????,????????????
  • ??(tidal current) ????????,??????????????????,?
    ?????????,???????????????
  • ???(wind-driven current) ????????????????wind-dri
    ven current ????????,?????(wind-driven
    circulation) ??????????????????????????

47
?????
  • ?????????????????,??????
  • Hadley cells, Ferrel cells, Polar cell????

48
???????
http//www.undersea.cn/Pages/deepsea/ds_3_surfacec
urrent.html
49
???
http//www.undersea.cn/Pages/deepsea/ds_3_surfacec
urrent.html
50
http//home.hiroshima-u.ac.jp/er/Resources/Image97
7.gif
51
http//kitchom.ed.oita-u.ac.jp/kankyo/nishigaki/c
n6/index.html
52
http//www.aoikuma.com/image/kairyu.gif
53
(No Transcript)
54
??
  • ??????????????,???????????,???????????????????????
    ?????????????,????????????????????????????????????
    ???????,????????????????

55
????(thermohaline circulation)
  • ????????????,?????????????,?????????,?????????,???
    ???????,??????????,????????????????????

56
???????
  • ?????????????,?????????????
  • ???? (?????) ????????????????,????????
    (??),???????????,??????????,??????????,??????????,
    ????????????,?????????,??????? (??)???????,???????
    ?????????????,?????????,?????????????

2016/4/26
http//www.undersea.cn/Pages/deepsea/ds_1_biospace
.html
56
57
??????
http//www.undersea.cn/image/deepsea/current.jpg
2016/4/26
57
58
??-??? (deep southerly return flow)
  • ????????????????????30????????,???????????????,???
    ???????????60???,???????????????????,?40005000???
    ??????????,??????????,??????????????

59
?????
???????? ????????
????????????????????????????,????????,????????,???
??????,?????????
60
3000???????
?????!!
  • ???????, ???????????14???????????3000????????????,
    ?????????, ????????,2000???, ????????????????????
    ????????,??????????????

61
3000????C-14??
62
??-??/???(upwelling/downwelling)
  • ??/???(upwelling/downwelling) ????????????????,??
    ????????????????????,???????????????????

63
???
  • ????????????,??????????????????????,?????????,????
    ????,????????,????????????,??????
  • ???????????????????,?????????,???????????,????????
    ???????????????

http//www.undersea.cn/Pages/deepsea/ds_3_upwellin
g.html
64
???
???????
???
http//www.undersea.cn/image/deepsea/upwelling2.jp
g
65
???????
  • ??????????????,???????????(???,????????),?????????
    ??(???),????????????????????????,?????????????
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