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ซากดึกดำบรรพ์  PowerPoint PPT Presentation


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ซากดึกดำบรรพ์ . ซากดึกดำบรรพ์  ซากดึกดำบรรพ์ คือ ซากหรือร่องรอยของสิ่งมีชีวิตทั้งพืชและสัตว์ที่เคยอาศัยอยู่ในบริเวณนั้น  เมื่อตายซากจะถูกทับถมและฝังตัวอยู่ในชั้นหินตะกอน

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(SiO2)


(index fossil)


(Mollusca)


. .

290


. .

. 250


3,500


2


(petrifaction)

  • 4.

1.

2.

3.


16 0.7 . .

. . 1 7


(distillation carboni -zation)

  • (graptolite) (arthropods)

  • (impression)

(carbonization)


(refrigeration)

1 40,000

67


(preservation)

  • (peat) (tar) (asphalt)

  • (amber)

40

26-112


(mummification)

2

Mummified baboon


(fossil traces)

1. (mold) (impression) ()

(Bryozoa) Mold 416-359

(Bivalve)

Mold

359-299


2. (cast) ()

(Brachiopod) Mold 416-359


3. (tracks and trails)

10,000

.

.


4. (coprolites)

14,000 13,000

12,000-100,000


5. (gastrolites) (Gizzard stone)


6. (feeding burrow)

cyanobacteria

(worm) 1.2


200 100


4 130 15-20


: 2 2 130 6.5


2 1-2 130


4 209 13-15


"" (25 ..54)

200 100


1. 4,600

3,000

2. 2 ()

3. (Species)


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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