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ซากดึกดำบรรพ์  PowerPoint PPT Presentation


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ซากดึกดำบรรพ์ . ซากดึกดำบรรพ์  ซากดึกดำบรรพ์ คือ ซากหรือร่องรอยของสิ่งมีชีวิตทั้งพืชและสัตว์ที่เคยอาศัยอยู่ในบริเวณนั้น  เมื่อตายซากจะถูกทับถมและฝังตัวอยู่ในชั้นหินตะกอน

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2424566


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(SiO2)


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(index fossil)


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(Mollusca)


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. .

290


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. .

. 250


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3,500


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2


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(petrifaction)

  • 4.

1.

2.

3.


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16 0.7 . .

. . 1 7


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(distillation carboni -zation)

  • (graptolite) (arthropods)

  • (impression)

(carbonization)


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(refrigeration)

1 40,000

67


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(preservation)

  • (peat) (tar) (asphalt)

  • (amber)

40

26-112


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(mummification)

2

Mummified baboon


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(fossil traces)

1. (mold) (impression) ()

(Bryozoa) Mold 416-359

(Bivalve)

Mold

359-299


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2. (cast) ()

(Brachiopod) Mold 416-359


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3. (tracks and trails)

10,000

.

.


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4. (coprolites)

14,000 13,000

12,000-100,000


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5. (gastrolites) (Gizzard stone)


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6. (feeding burrow)

cyanobacteria

(worm) 1.2


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200 100


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4 130 15-20


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: 2 2 130 6.5


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2 1-2 130


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4 209 13-15


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"" (25 ..54)

200 100


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1. 4,600

3,000

2. 2 ()

3. (Species)


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http://www.youtube.com/watch?v=d_GosnrTAew

http://www.youtube.com/watch?v=puEkrAP8HdM

http://www.youtube.com/watch?v=d_GosnrTAew

http://www.obeclms.com/scorm/science/4/4_11/intro.swf

http://www.baanjomyut.com/library_2/fossil/02.html

http://www.thaigoodview.com/library/contest2553/type2/science04/01/p3.html

http://www.learnbytechno.com/


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