Texture N°14 - Oriented meteorite

Texture 14-1

Effects of mechanical abrasion (corrasion) caused by continual attack sand on a meteor travels through the Earth's atmosphere, the heat generated ablates material away. .........the meteor is able to achieve stable flight rather than tumbling sporadically, then the material will ablate in an even manner creating what is known as a shield or nose-cone shape. .

Oriented Meteorites


a meteor travels through the Earth's atmosphere, the heat generated ablates material away. If the meteor is vehicles were designed from this natural shape which. A meteor travels through the Earth's atmosphere, the heat generated ablates material away.
. the Gao-Guenie pieces below. Oriented meteorites are quite rare and can differ widely in shape and size but perfectly shaped specimens such as the 277g Australian Iron are extremely rare!

– avec Hervé JP Chotard.

Oriented Meteorites
here are examples various oriented (or orientated) meteorites from the Meteorites Australia Collection. three views of each meteorite starting with the Trailing Side (Rear) on the left, the Leading Side (Front) in the centre and a side view on the right-hand column.a meteor travels through the Earth's atmosphere, the heat generated ablates material away. the meteor is able to achieve stable flight rather than tumbling sporadically, then the material will ablate in an even manner creating what is known as a shield or nose-cone shape. In fact, ideas for space re-entry vehicles were designed from this natural shape which tends to dissipate the high amounts of energy better. The leading side (front) and sides often have flow-lines in the surface which indicates the direction the material was being ablated. The rear edges of the trailing side can create a 'roll-over' rim or 'lip' where the ablating/melting material has started to roll-over onto the back side. Sometimes specimens will also have 'frothing' on the trailing side where the crust has literally bubbled. This is evident in the Gao-Guenie pieces below. Oriented meteorites are quite rare and can differ widely in shape and size but perfectly shaped specimens such as the 277g Australian Iron are extremely rare!

Trailing Side Leading Side Side View
Millbillillie (Eucrite) 10.35g Oriented Individual
Unclassified Australian Iron - 277g Individual
Individual Unclassified Australian Iron - 277g
Gao-Guenie - (H5) 12.97g Individual
Individual Gao-Guenie (H5) 12.97g
Individual Unclassified NWA - 133.2g Individual
Sikhote-Alin (IIAB) - 159.5g Oriented Individual
Unclassified Saharan - 39g Individual
Gao-Guenie (H5) 2.70g Individual
Thuathe (H4-5) 3.36g Oriented Individual
Sikhote-Alin - (IIAB) 233.3g Individual
Taza (NWA 859) - (Ungrouped Plessitic) 2.84g Dual Oriented Individual
Seymchan - (Pallasite) 43.0g Individual
Sikhote-Alin - (IIAB) 12.40g Individual

thank's http://www.meteorites.com.au/odds&ends/oriented.html meteorite-mars.com
meteorite-mars.com THANK'S

05 novembre 2012 Météorite Chizé de NASA’s Curiosity Mars Rover NASA's OSIRIS-REx Asteroid Sample Return Mission ASTEROIDE VH 77 Du 05 Novembre 2012 !!

Texture 14-2

Mechanical abrasion (corrasion) caused by continual attack OF Picture

14/02 cub indique epaisseur de plus de 3 mm de fresh crust de fusion very hight température !! celà indique un long parcours dans l 'atmosphére terrestre sur plus de de 18 témoins in the night 18h45 november 05 year 2012 700 kms !!! véry rare !!

Oriented Meteorites
examples of various oriented (or orientated) meteorites from the Meteorites Australia Collection. There are three views of each meteorite starting with the Trailing Side (Rear) on the left, the Leading Side (Front) in the centre and a side view on the right-hand column.

IF THE meteor travels through the Earth's atmosphere, the heat generated ablates material away. If the meteor is able to achieve stable flight rather than tumbling sporadically, then the material will ablate in an even manner creating what is known as a shield or nose-cone shape. In fact, ideas for space re-entry vehicles were designed from this natural shape which tends to dissipate the high amounts of energy better. The leading side (front) and sides often have flow-lines in the surface which indicates the direction the material was being ablated. The rear edges of the trailing side can create a 'roll-over' rim or 'lip' where the ablating/melting material has started to roll-over onto the back side. Sometimes specimens will also have 'frothing' on the trailing side where the crust has literally bubbled. This is evident in the Gao-Guenie pieces below. Oriented meteorites are quite rare and can differ widely in shape and size but perfectly shaped specimens such as the 277g Australian Iron are extremely rare!

– avec Hervé JP Chotard.

various oriented (or orientated) meteorites from the Meteorites Australia Collection. three views of each meteorite starting with the Trailing Side (Rear) on the left, the Leading Side (Front) in the centre and a side view on the right-hand column.a meteor travels through the Earth's atmosphere, the heat generated ablates material away. the meteor is able to achieve stable flight rather than tumbling sporadically, then the material will ablate in an even manner creating what is known as a shield or nose-cone shape. In fact, ideas for space re-entry vehicles were designed from this natural shape which tends to dissipate the high amounts of energy better. The leading side (front) and sides often have flow-lines in the surface which indicates the direction the material was being ablated. The rear edges of the trailing side can create a 'roll-over' rim or 'lip' where the ablating/melting material has started to roll-over onto the back side. Sometimes specimens will also have 'frothing' on the trailing side where the crust has literally bubbled. This is evident in the Gao-Guenie pieces below. Oriented meteorites are quite rare and can differ widely in shape and size but perfectly shaped specimens such as the 277g Australian Iron are extremely rare!