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標題: Preparing Dinosaur Fossils Inside AMNH 博物館的化石清理(視頻)  
 
fossilshk (Lung)
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Preparing Dinosaur Fossils Inside AMNH 博物館的化石清理(視頻)


美國自然歷史博物館內的化石清理介紹 Preparing Dinosaur Fossils Inside AMNH
Fossil preparators are highly skilled technicians who restore the naturally fractured bones and teeth of fossil to the original state, somewhat like art conservators restore damaged paintings and sculptures.

When fossils arrive from the field, they are encased in plaster jackets, and the rock, or matrix, which was deposited around the fossils. Fossil preparation involves cutting open the plaster jacket and removing this matrix surrounding the fossil.

The matrix may be soft and crumbly when the sand or mud is poorly cemented together, or it can be extremely hard when the sediments are well-cemented. Accordingly, a wide variety of tools is required to remove the matrix and stabilize the fossil. Commonly, dental tools are used to carefully pick away sediment near the bone, along with custom-made needles composed of carbide steel.

Preparators carefully select the materials used to strengthen or repair specimens. Adhesives, glues, and fillers must stand the test of time and not become brittle or discolored, just like the materials used to conserve works of art. The types of materials used are recorded in order to aid future preparators if further preparation or repair is required.

Watch as Justy Alicea, a senior preparator at the American Museum of Natural History, works on a specimen and then gives a tour of the Museum's fossil preparation lab.



2011-6-24 05:11 AM#1
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寒武紀
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正!正!post多點看



寒武紀:生命的伊甸園
2011-6-26 01:54 PM#2
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megalodon
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very nice preparation



WOWOWOWOWOWWOW
2011-7-4 09:32 PM#3
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Ken
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大開眼界..如果在電影裡看到的..就會以為是虛構的..
在這平台裡..真的學會好多常識..應該說是可以了解很多別人的專業知識..
我對這些化石清理很感興趣..
希望有機會再看多一些..
2011-10-7 07:24 PM#4
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