Imilac

Imilac

Meteorite
Name= Imilac


Image_caption= 3747g full slice from the Imilac main mass
Image_width=
Type= Stony-iron
Class= Pallasite
Group= Main Group Pallasite (MGP)
Structural_classification=
Composition= 90% Fe, 9.9% Ni, 21.1 ppm Ga, 46.0 ppm Ge, 0.071 ppm Ir
Shock=
Weathering=
Country= Chile
Region= Atacama Desert, Atacama Region
Lat_Long= coord|24|12|12|S|68|48|24|W|display=inline,title
Observed_fall= No
Fall_date=
Found_date= 1822
TKW= 920 kg


Image2_caption=

Imilac is the name given to a meteorite found in the Atacama Desert of Northern Chile in 1822.

Classification

Imilac is classified as a stony-iron pallasite. Imilac specimens are highly prized by meteorite collectors due to its high concentration of beautiful olivine grains.

Strewn field

Numerous masses were found in a valley to the SW of Imilac. The total weight of the Imilac fall is estimated to be around 1000 kg. The primary strewn field is long about 8 km [ [http://articles.adsabs.harvard.edu/full/1989LPICo.712..192P Pedersen, H., Lindgren, H., & Canut de Bon, C. "Strewn-fields of Imilac and Vaca Muerta".] ] .

Specimens

Due weathering, intact olivine grains are present only on large specimens (over 1 kg). Smaller samples contains darker alterated olivine cristals. On the market there are also a lot of very small (few grams) Imilac individuals called "metal skeletons": they are severely weathered and lack olivine grains.

External links

[http://tin.er.usgs.gov/meteor/metbull.php?sea=imilac&sfor=names&ants=&falls=&stype=contains&lrec=50&
]

Notes


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Salar de Imilac — Sp Imilãko druskóžemis Ap Salar de Imilac L Š Čilėje …   Pasaulio vietovardžiai. Internetinė duomenų bazė

  • Meteorite Men — Meteorite hunters Steve Arnold and Geoff Notkin. Genre Documentary / Reality Presented by …   Wikipedia

  • Pallasite — A slice of the Esquel pallasite, clearly showing the large olivine crystals suspended in the metal matrix. A pallasite is a type of stony–iron meteorite. Contents 1 Structure and compositi …   Wikipedia

  • Salares de Chile — Anexo:Salares de Chile Saltar a navegación, búsqueda Esta es una lista de los salares en Chile Nombre Área (km²) Altitud (msnm) Región de Chile Coordenadas Agua Amarga Atacama Aguas Calientes 1 …   Wikipedia Español

  • Anexo:Salares de Chile — Esta es una lista de los salares en Chile Nombre Área (km²) Altitud (msnm) Región de Chile Coordenadas Agua Amarga Atacama Aguas Calientes 1 Antofagasta …   Wikipedia Español

  • Tranvía de Antofagasta — Este artículo o sección se refiere o está relacionado con una infraestructura futura o en desarrollo. La información de este artículo puede cambiar frecuentemente. Por favor, no agregues datos especulativos y recuerda colocar referencias a… …   Wikipedia Español

  • Imilako druskožemis — Sp Imilãko druskóžemis Ap Salar de Imilac L Š Čilėje …   Pasaulio vietovardžiai. Internetinė duomenų bazė

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”