|
For Email Marketing
you can trust
|
You Are On: Meteorites Page 2 Click To Go To:
Custom Search
TABLE OF CONTENTS ON PAGE 1 Contents: Meteorites from Russia and Argentina Sikhote Alin Meteorites from RussiaThis group of meteorites fell Feb. 12, 1947 at 31,000 mph and was one of the most spectacular falls in recorded history - the fireball it created was brighter than the sun. At an altitude of 3.5 miles, it broke up, creating a spectacular strewn field a half a mile long. The fragments were created so violently, they're called "meteorite shrapnel". One crater pit was 85’ across x 20’ deep, the total meteorite weight was just under 1000 tons. The largest meteorite fragment is 1745 kilograms and is on display in Moscow. Location: Sikhote-Alin Mountains, Maritime Province, Russia, about 270 miles northeast of Vladivostok. Latitude 46 degrees 9.6 minutes North, Longitude 134 degrees 39.2 minutes West. Structural class: Coarsest octahedrite, Ogg, Widmanstatten bandwidth 9 ±5 mm Chemical class: Group IIB, 5.9% Ni, 0.42% Co, 0.46% P, about 0.28% S, 52 ppm Ga, 161 ppm Ge, 0.03 ppm Ir. Authentication card, and map with more information is included with each purchase.
The Campo del Cielo
meteorite strewn site (name means "On the Field of Heaven",
a fitting name by the Indians, named for the meteorite fall) was
first discovered by the Spanish in 1576 in the Gran Chaco Gualamba region
of
Argentina, about 500 miles N-NE of Buenos Aires. The area is an open
brush-covered plain with little water and no other rocks. The largest
crater is 78x65 meters (meteorite measures 38 tons) ..a total of 12 craters in
the area were caused by the meteorites, which were intact in each of the
craters. The fall is dated as between 3950 and 5800 years ago,
consistent with oral Indian legends. These meteorites are a
polycrystalline coarse octahedrite of austenite crystals that broke up upon
entering the atmosphere. Composition is: 6.68% Nickel, 0.43% Cobalt,
0.25% Phosphorus, 87 ppm Gallium, 407 ppm Germanium, 3.6 ppm Iridium (some of
which are extremely rare on Earth), the majority element is iron.
Click To Go To: TABLE OF CONTENTS ON PAGE 1
|
|