Attention Deficit Disorder Prosthetic Memory Program

Pallasite

ADDPMP515
Pallasite - © Attention Deficit Disorder Prosthetic Memory Program

A class of stony-iron meteorite, mostly composed of small olivine crystals but also schreibersite, troilite, chromite, pyroxenes and phosphates. Pallasites were once thought to originate at the core-mantle boundary of differentiated asteroids that were subsequently shattered through impact. An alternative recent hypothesis is that they are impact-generated mixtures of core and mantle materials.

Pallasite is named after German naturalist Peter Pallas who, in 1772, studied a specimen previously found near Krasnoyarsk, in the mountains of Siberia. This rock had a mass of 680kg (1,500lbs) and was dissimilar to all rock or ore found in this area. However its content of native metal was similar to other finds from completely different areas. As the large piece could not have been accidentally transported to the site upon which it was found, the pallasite was consequently used to demonstrate the reality of meteorite falls on the Earth, which were, in the 1790s, considered by most scientists as fairytales.

Grackles Invade Walmart Parking Lot - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP216
Grackles Invade Walmart Parking Lot
Russian Gangsters Tombstones - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP236
Russian Gangsters Tombstones
Dennis Tito - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP135
Dennis Tito
Pareidolia - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP480
Pareidolia
The Anthropocene Era - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP073
The Anthropocene Era
The Decline of Western Civilization - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP396
The Decline of Western Civilization
Boomtown - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP054
Boomtown
Offshore Architecture - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP423
Offshore Architecture
Get Tough - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP307
Get Tough
Buttered Toast Phenomenon - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP427
Buttered Toast Phenomenon
Dis-Armor by Krzysztof Wodiczko - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP086
Dis-Armor by Krzysztof Wodiczko
Pangea Proxima - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP246
Pangea Proxima

You are using an outdated browser.
Please upgrade your browser to improve your experience.