Barea meteorite, Varea, Entrena, La Rioja, Spaini
| Regional Level Types | |
|---|---|
| Barea meteorite | Meteorite Fall Location |
| Varea | - not defined - |
| Entrena | Municipality |
| La Rioja | Autonomous Community |
| Spain | Country |
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Latitude & Longitude (WGS84):
42° 22' 59'' North , 2° 30' 0'' West
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Entrena | 1,248 (2012) | 2.6km |
| Albelda de Iregua | 2,644 (2012) | 3.6km |
| Sojuela | 113 (2012) | 4.0km |
| Medrano | 201 (2012) | 4.4km |
| Sorzano | 252 (2012) | 5.1km |
Mindat Locality ID:
262013
Long-form identifier:
mindat:1:2:262013:1
GUID (UUID V4):
c23dfa1e-8de3-4f1d-9964-5b688f61c16d
Name(s) in local language(s):
Meteorito Barea, Varea, LogroΓ±o, La Rioja, EspaΓ±a
Mesosiderite, A-1
Fall, 4 July 1841, 3.2 kg
The Barea stone fell near LogroΓ±o, Spain. With a volume more than 50% silicate and a mass more than 50% Fe-Ni metal [plus ~1-2% other phases], it was quickly recognized as a stony-iron and, in time, classified as a part of the Mesosiderite class. Mesosiderites are complex mixtures of one or more particularly violent and ancient impacts which may have involved either a metal-rich projectile or the deep penetration by an impactor into the upper core of an ancient asteroid. In any case, Barea was the first of only 7 witnessed mesosiderite falls (~ .5% of all falls). Over a century after its fall, portions of the meteorite were carefully observed by several masters of the mineralogical trade (Mason, Ramdohr, and others) and its major, minor, and several trace constituents have been both identified and studied. The predominant silicate is pyroxene (Fs30) ('hypersthene' in the meteoritic literature), but minor and frequently variable plagioclase (Ca-rich) and olivine (Fo68-80) as well as tridymite are observed. Metal is mostly kamacite, but taenite is present. Other minor phases usually found in mesosiderites β troilite, ilmenite, and merrillite β are also present. Very small amounts of copper, graphite, schreibersite, and rutile are reported. Barea's petrologic type 1 designation indicates that its brecciated components have been mildly recrystallized since their original fragmentation.
Inconclusive attempts to determine the cosmic ray exposure age are reported in the literature. Difficulties appear to be rooted in accounting for the different shielding factors of the metal and silicates. The main mass (1.7 kg) is held in Spain's National Science Museum in Madrid.
Official coordinates: 42ΒΊ 23' N, 2ΒΊ 30' W
Unofficial coordinates: 42ΒΊ 27' 47'' N, 2ΒΊ 24' 27'' W
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
13 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:
| β Anorthite Formula: Ca(Al2Si2O8) Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973) |
| β Anorthite var. Bytownite Formula: (Ca,Na)[Al(Al,Si)Si2O8] Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973) |
| β Chromite Formula: Fe2+Cr3+2O4 Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.; Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071. |
| β 'Clinopyroxene Subgroup' Reference: Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071.; Mittlefehldt, D. W., McCoy, T. J., Goodrich, C. A. & Kracher, A. (1998). Non-chondritic meteorites from asteroidal bodies. In: Planetary Materials (Papike, J. J., Editor): Chapter 4, 195 pages (Table 41). Mineralogical Society of America: Washington, DC, USA. (1998) |
| β Copper Formula: Cu Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. |
| β 'Fayalite-Forsterite Series' Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973); Delaney, J. S., Nehru, C. E. & M. Prinz, M. (1980) Olivine Clasts from mesosiderites and Howardites: Clues to the nature of achondritic parent bodies. Proceedings of the Lunar and Planetary Science Conference XI: 1073-1087.; Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071.; Mittlefehldt, D. W., McCoy, T. J., Goodrich, C. A. & Kracher, A. (1998). Non-chondritic meteorites from asteroidal bodies. In: Planetary Materials (Papike, J. J., Editor): Chapter 4, 195 pages (Table 41). Mineralogical Society of America: Washington, DC, USA. (1998) |
| β Graphite Formula: C Description: very minor, Mason & Jarosewich (1973) Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973) |
| β 'Hypersthene' Formula: (Mg,Fe)SiO3 Description: Pyroxene composition (Fs30)- 'hypersthene' in the meteoritic literature Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973) |
| β Ilmenite Formula: Fe2+TiO3 Description: very minor, Mason & Jarosewich (1973) Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.; Mittlefehldt, D. W., McCoy, T. J., Goodrich, C. A. & Kracher, A. (1998). Non-chondritic meteorites from asteroidal bodies. In: Planetary Materials (Papike, J. J., Editor): Chapter 4, 195 pages (Table 41). Mineralogical Society of America: Washington, DC, USA. (1998) |
| β Iron Formula: Fe Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. |
| β Iron var. Kamacite Formula: (Fe,Ni) Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. |
| β Merrillite Formula: Ca9NaMg(PO4)7 Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973); Mittlefehldt, D. W., McCoy, T. J., Goodrich, C. A. & Kracher, A. (1998). Non-chondritic meteorites from asteroidal bodies. In: Planetary Materials (Papike, J. J., Editor): Chapter 4, 195 pages (Table 41). Mineralogical Society of America: Washington, DC, USA. (1998) |
| β 'Orthopyroxene Subgroup' Reference: Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071.; Mittlefehldt, D. W., McCoy, T. J., Goodrich, C. A. & Kracher, A. (1998). Non-chondritic meteorites from asteroidal bodies. In: Planetary Materials (Papike, J. J., Editor): Chapter 4, 195 pages (Table 41). Mineralogical Society of America: Washington, DC, USA. (1998) |
| β 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973); Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071.; Mittlefehldt, D. W., McCoy, T. J., Goodrich, C. A. & Kracher, A. (1998). Non-chondritic meteorites from asteroidal bodies. In: Planetary Materials (Papike, J. J., Editor): Chapter 4, 195 pages (Table 41). Mineralogical Society of America: Washington, DC, USA. (1998) |
| β 'Pyroxene Group' Formula: ADSi2O6 Description: (En~50-80) Prinz et al. (1980)'Modal studiesβ¦' Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973); Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071. |
| β Rutile Formula: TiO2 Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. |
| β Schreibersite Formula: (Fe,Ni)3P Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. |
| β Taenite Formula: (Fe,Ni) Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. |
| β Tetrataenite Formula: FeNi Reference: Yang, C. W., Williams, D. B. & Goldstein, J. I. (1994) AEM Study of the Tetrataenite Rim of Metal Phases in Meteorites (abstract). Lunar and Planetary Science Conference XXV, Abstracts: page 1529. |
| β Tridymite Formula: SiO2 Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973); Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071.; Mittlefehldt, D. W., McCoy, T. J., Goodrich, C. A. & Kracher, A. (1998). Non-chondritic meteorites from asteroidal bodies. In: Planetary Materials (Papike, J. J., Editor): Chapter 4, 195 pages (Table 41). Mineralogical Society of America: Washington, DC, USA. (1998) |
| β Troilite Formula: FeS Reference: Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973); Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| β | Copper | 1.AA.05 | Cu |
| β | Graphite | 1.CB.05a | C |
| β | Iron | 1.AE.05 | Fe |
| β | var. Kamacite | 1.AE.05 | (Fe,Ni) |
| β | Schreibersite | 1.BD.05 | (Fe,Ni)3P |
| β | Taenite | 1.AE.10 | (Fe,Ni) |
| β | Tetrataenite | 1.AE.10 | FeNi |
| Group 2 - Sulphides and Sulfosalts | |||
| β | Troilite | 2.CC.10 | FeS |
| Group 4 - Oxides and Hydroxides | |||
| β | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
| β | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| β | Rutile | 4.DB.05 | TiO2 |
| β | Tridymite | 4.DA.10 | SiO2 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| β | Merrillite | 8.AC.45 | Ca9NaMg(PO4)7 |
| Group 9 - Silicates | |||
| β | Anorthite | 9.FA.35 | Ca(Al2Si2O8) |
| β | var. Bytownite | 9.FA.35 | (Ca,Na)[Al(Al,Si)Si2O8] |
| Unclassified Minerals, Rocks, etc. | |||
| β | 'Clinopyroxene Subgroup' | - | |
| β | 'Fayalite-Forsterite Series' | - | |
| β | 'Hypersthene' | - | (Mg,Fe)SiO3 |
| β | 'Orthopyroxene Subgroup' | - | |
| β | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| β | 'Pyroxene Group' | - | ADSi2O6 |
List of minerals for each chemical element
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Mason, B. & Jarosewich, E. (1973) The Barea, Dyarrl Island, and Emery meteorites, and a review of the mesosiderites: Mineralogical Magazine 39 (302): 204-215. (June 1973)
Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.
Floran, R. J. (1978) Silicate petrography, classification, and origin of the mesosiderites - Review and new observations. In: Lunar and Planetary Science Conference IX, Proceedings. Volume 1: New York, Pergamon Press, Inc.. pp. 1053-1081.
Prinz, M., Nehru, C. E., Delaney, J. S., Harlow, G. E. & Bedell, R. L. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219. Proceedings of the Lunar and Planetary Science Conference XI: 1055-1071.
Delaney, J. S., Nehru, C. E. & M. Prinz, M. (1980) Olivine Clasts from mesosiderites and Howardites: Clues to the nature of achondritic parent bodies. Proceedings of the Lunar and Planetary Science Conference XI: 1073-1087.
Delaney, J. S., Nehru, C. E., Prinz, M. & Harlow, G. E. (1981) Metamorphism in mesosiderites: Proceedings of the Lunar and Planetary Science Conference, 12B: 1315-1342.
Mittlefehldt, D. W., McCoy, T. J., Goodrich, C. A. & Kracher, A. (1998). Non-chondritic meteorites from asteroidal bodies. In: Planetary Materials (Papike, J. J., Editor): Chapter 4, 195 pages (viz:Table 41). Mineralogical Society of America: Washington, DC, USA. (1998)
Yang, C. W., Williams, D. B., & Goldstein, J. I. (1994) AEM Study of the Tetrataenite Rim of Metal Phases in Meteorites (abstract). Lunar and Planetary Science Conference XXV, Abstracts: page 1529.
External Links
http://www.lpi.usra.edu/meteor/metbull.php = Meteoritical Bulletin Database
http://www.lpi.usra.edu/meteor/get_original_photo.php?recno=5665880
http://www.lpi.usra.edu/meteor/get_original_photo.php?recno=5628097
http://www.solosequenosenada.com/meteorito/index3.php (in spanish)
http://www.minersoc.org/pages/Archive-MM/Volume_39/39-302-204.pdf
http://www.lpi.usra.edu/meteor/get_original_photo.php?recno=5665880
http://www.lpi.usra.edu/meteor/get_original_photo.php?recno=5628097
http://www.solosequenosenada.com/meteorito/index3.php (in spanish)
http://www.minersoc.org/pages/Archive-MM/Volume_39/39-302-204.pdf
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