|
||||||||||||||||||
|
||||||||||||||||||
Australite Cores - The formation of a flange on an australite seems to be a very stressful process to the glass body as it is fall back to Earth. In most cases the tektite can not make it to the ground with its flange intact. At some point the entire front of the tektite will detach. Several theories have been presented to acount for this detachment of the ablated surface and flange. Among most reasonable is that there is thermal stress between the hot melted surface and the cold glass of the remainder of the body. Cracks form and the aerodynamially shaped portion spalls away. What is left is referred to as a core. It is very easy to distinguish a core visually. It will have the remains of the location of the flange as a bump running around its perimeter, The curved posterior side will look just as it does on the unablated side of a flanged button. However there will be numerous flats around the perimeter of the core where aerodynamically shaped material has broken away in sections. The surface that had ringwaves is of course by definition gone as well. Cores
|
|||||||||||||||
NewsArticlesVideosSpecial |
Your CartLoginCatalog Updates
September Updates
Last on 9/06/10 Mt Padbury Meteorite NWA 5080 Meteorite Meteorite Jewelry Moon Rocks Mars Rocks Recent Updates Libyan Desert Glass Taza Meteorite Tatahouine Meteorite Sikhote-Alin Individuals Holbrook Meteorite Canyon Diablo Irons Zagami Mars Rock Claxton Meteorite Mundrabilla Meteorite NWA 869 Meteorite Sikhote-Alin Shrapnel Dhofar 700 Diogenite Glorieta Mountain New Meteorite Book Bediasite Tektites Allende Meteorite Tagish Lake Meteorite Gao-Guenie Meteorite Moldavites Tektites LA 002 Mars Meteorite Chergach Meteorite Rizalite Tektites Darwin Glass Juancheng Meteorite Camel Donga Meteorite Henbury Meteorite Previous news  
|
||||||||||||||
|
|||||||||||||||
Ask
Backflip
BallHype
Bebo
BlinkList
BlogMarks
del.icio.us
Digg
Diigo
Facebook
Fark
Faves
FriendFeed
Google
Kaboodle
Link-a-Gogo
LinkedIn
Live
Mister Wong
Mixx
Multiply
myAol
MySpace
Netvouz
Newsvine
Propeller
reddit
Segnalo
Simpy
SlashDot
Spurl
Squidoo
StumbleUpon
Tailrank
Technorati
Twitter
Yahoo
Yardbarker
Home •
Store •
Meteorites For Sale •
Tektites For Sale •
Impactites •
Libyan Desert Glass
|
