Talampaya meteorite, Talampaya National Park, Coronel Felipe Varela Department, La Rioja Province, Argentinai
Regional Level Types | |
---|---|
Talampaya meteorite | Meteorite Fall Location |
Talampaya National Park | National Park |
Coronel Felipe Varela Department | Department |
La Rioja Province | Province |
Argentina | Country |
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Latitude & Longitude (WGS84):
29° South , 67° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~45km
Locality type:
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Eucrite, cumulate-brecciated
Fell 1995; 1421 g
After being frightened by a sonic boom, a mountain climber recovered the somewhat unusual Talampaya eucrite. The meteorite is composed almost entirely of pyroxene and anorthitic, somewhat variable plagioclase. The pyroxene host is predominantly Ca-poor, but minor augite (<10 vol%) is also present. Chromite (<1 vol%) appears to be the most abundant of several minor and rare accessory phases which also include silica, ilmenite, troilite, and Fe-rich metal. The meteorite contains both unbrecciated and brecciated, sometimes cataclastic, areas. Uncommon depletions of refractory elements (e.g., La, Sm, Eu, Lu) are found, but the oxygen isotope signatures are typical for HED meteorites.
Talampaya is one of only 35 witnessed eucrite falls [as of Aug 2014] and ~500 g is stored with the American Museum of Natural History. References to it in the literature, however, are quite sparse. Talampaya is in Coronel Felipe Varela department, La Rioja province, but the actual fall could have been in the Jáchal department, San Juan province.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
6 valid minerals.
Meteorite/Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
ⓘ Anorthite Formula: Ca(Al2Si2O8) Description: Amoeboidal Anorthite composition reaches An95 Reference: Grossman, J. N. (1999). The Meteoritical Bulletin, No. 85, 1999 July. Meteoritics & Planetary Science 34(4-Supplement): A169-A186. (July 1999).; Kaneda, K., Warren, P. H. & Miyamoto, M. (2000) Petrology and Thermal History of Mg-rich Pyroxene Bearing Cumulate Eucrite, Talampaya: Lunar Planetary Science Conference XXXI, abstract no. 2069 (March 2000) |
ⓘ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 Reference: Kaneda, K., Warren, P. H. & Miyamoto, M. (2000) Petrology and Thermal History of Mg-rich Pyroxene Bearing Cumulate Eucrite, Talampaya: Lunar Planetary Science Conference XXXI, abstract no. 2069 (March 2000) |
ⓘ Chromite Formula: Fe2+Cr3+2O4 Reference: Grossman, J. N. (1999). The Meteoritical Bulletin, No. 85, 1999 July. Meteoritics & Planetary Science 34(4, Supplement): A169-A186. (July 1999); Kaneda, K., Warren, P. H. & Miyamoto, M. (2000) Petrology and Thermal History of Mg-rich Pyroxene Bearing Cumulate Eucrite, Talampaya: Lunar Planetary Science Conference XXXI, abstract no. 2069 (March 2000) |
ⓘ Ilmenite Formula: Fe2+TiO3 Reference: Kaneda, K., Warren, P. H. & Miyamoto, M. (2000) Petrology and Thermal History of Mg-rich Pyroxene Bearing Cumulate Eucrite, Talampaya: Lunar Planetary Science Conference XXXI, abstract no. 2069 (March 2000) |
ⓘ Iron Formula: Fe Description: Cited sources do not provide the Ni abundance of the Fe-metal. Fe-Ni metal is normal in almost all meteorite types and in many eucrites. However, Ni-poor Fe (Ni <1%)is found in a number of eucrites Reference: Kaneda, K., Warren, P. H. & Miyamoto, M. (2000) Petrology and Thermal History of Mg-rich Pyroxene Bearing Cumulate Eucrite, Talampaya: Lunar Planetary Science Conference XXXI, abstract no. 2069 (March 2000) |
ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 Description: Mostly anorthitic An89-95 Reference: Grossman, J. N. (1999). The Meteoritical Bulletin, No. 85, 1999 July. Meteoritics & Planetary Science 34(4-Supplement): A169-A186. (July 1999). |
ⓘ 'Pyroxene Group' Formula: ADSi2O6 Description: Low-Ca Pyroxene - En58.6–60.0 Reference: Grossman, J. N. (1999). The Meteoritical Bulletin, No. 85, 1999 July. Meteoritics & Planetary Science 34(4-Supplement): A169-A186. (July 1999). |
ⓘ 'Silica' Reference: Kaneda, K., Warren, P. H. & Miyamoto, M. (2000) Petrology and Thermal History of Mg-rich Pyroxene Bearing Cumulate Eucrite, Talampaya: Lunar Planetary Science Conference XXXI, abstract no. 2069 (March 2000) |
ⓘ Troilite Formula: FeS Reference: Kaneda, K., Warren, P. H. & Miyamoto, M. (2000) Petrology and Thermal History of Mg-rich Pyroxene Bearing Cumulate Eucrite, Talampaya: Lunar Planetary Science Conference XXXI, abstract no. 2069 (March 2000) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
ⓘ | Iron | 1.AE.05 | Fe |
Group 2 - Sulphides and Sulfosalts | |||
ⓘ | Troilite | 2.CC.10 | FeS |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
Group 9 - Silicates | |||
ⓘ | Anorthite | 9.FA.35 | Ca(Al2Si2O8) |
ⓘ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Unclassified Minerals, Rocks, etc. | |||
ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
ⓘ | 'Pyroxene Group' | - | ADSi2O6 |
ⓘ | 'Silica' | - |
List of minerals for each chemical element
O | Oxygen | |
---|---|---|
O | ⓘ Pyroxene Group | ADSi2O6 |
O | ⓘ Anorthite | Ca(Al2Si2O8) |
O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
O | ⓘ Chromite | Fe2+Cr23+O4 |
O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
O | ⓘ Ilmenite | Fe2+TiO3 |
Na | Sodium | |
Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Mg | Magnesium | |
Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Al | Aluminium | |
Al | ⓘ Anorthite | Ca(Al2Si2O8) |
Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Si | Silicon | |
Si | ⓘ Pyroxene Group | ADSi2O6 |
Si | ⓘ Anorthite | Ca(Al2Si2O8) |
Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
S | Sulfur | |
S | ⓘ Troilite | FeS |
Ca | Calcium | |
Ca | ⓘ Anorthite | Ca(Al2Si2O8) |
Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Ti | Titanium | |
Ti | ⓘ Ilmenite | Fe2+TiO3 |
Cr | Chromium | |
Cr | ⓘ Chromite | Fe2+Cr23+O4 |
Fe | Iron | |
Fe | ⓘ Chromite | Fe2+Cr23+O4 |
Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Fe | ⓘ Ilmenite | Fe2+TiO3 |
Fe | ⓘ Troilite | FeS |
Fe | ⓘ Iron | Fe |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Grossman, J.N. (1999) The Meteoritical Bulletin, No. 85, 1999 July. Meteoritics & Planetary Science: 34(4-Supplement): A169-A186 (July 1999).
Kaneda, K., Warren, P.H., Miyamoto, M. (2000) Petrology and Thermal History of Mg-rich Pyroxene Bearing Cumulate Eucrite, Talampaya: Lunar Planetary Science Conference XXXI: abstract no. 2069 (March 2000).
Grady, M.M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages.
External Links
https://www.lpi.usra.edu/meteor/metbull.php?code=23791
http://www.encyclopedia-of-meteorites.com/test/Talampaya.jpg [Talampaya foto]
https://meteorites.asu.edu/meteorites/talampaya
http://www.encyclopedia-of-meteorites.com/test/Talampaya.jpg [Talampaya foto]
https://meteorites.asu.edu/meteorites/talampaya
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