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Barbotan meteorite, Barbotan, Gers, Occitanie, Francei
Regional Level Types
Barbotan meteoriteMeteorite Fall Location
Barbotan- not defined -
GersDepartment
OccitanieRegion
FranceCountry

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Key
Latitude & Longitude (WGS84):
43° 56' 23'' North , 0° 3' 55'' West
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Cazaubon1,628 (2016)0.7km
Larée244 (2016)3.9km
Monclar162 (2016)4.0km
Lagrange206 (2016)4.6km
Parleboscq552 (2016)5.3km
Other/historical names associated with this locality:
, Midi-Pyrénées


Ordinary chondrite, veined (H5)
Fell, 24 July 1790, 21:00 hrs; 6.4 kg

After a fireball moved from South to north, detonations were heard and a shower of stones fell. The largest stone recovered stone was 9 kg. Olivine (Fa19) and orthopyroxene ('Bronzite') are characteristic of the H-chondrite geochemical group. Mineralogically, the meteorite consists primarily of dominant olivine and somewhat lesser amounts of low-Ca pyroxene along with minor amounts of Fe-Ni metal (kamacite, taenite), troilite, plagioclase, and diopside. Accessory chromite, copper, ilmenite, and phosphates are also reported. Multiple shock features include undulose and mosaic extinction in olivine and orthopyroxene, polycrystalline kamacite, and troilite droplets in melt pockets.

A Pb,Th:He age of 2.02 Ga and a cosmic-ray exposure age of 6.7 Ma are reported. The CRE age is similar to many other H5 CRE ages, suggesting that as the Barbotan pre-impact meteoroid may have been involved in a collision which produced other H5 meteoroids which have also produced meteorites.

The H (relatively high in total iron) chondrites are the second largest group of ordinary chondrite falls and represent over 35% of well-classified, witnessed falls. Barbotan was only the 3rd meteorite fall recovered which is currently classified exactly as an 'H5' chondrite. Only Tabor (F:1773) and Eichstädt (F:1785) were recovered earlier. Today a total of 174 meteorite falls have now been classified exactly as H5 chondrites (May 2017).

Several masses in the 100 g-1 kg range are still extant with the largest at Tübingen University (as of 2000).

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


7 valid minerals.

Meteorite/Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

'Albite-Anorthite Series'
Reference: Tschermak, G., Wood, J.A. & Wood, K.M. (1964) The Microscopic Properties of Meteorites by Gustav Tschermak (Die Mikroskopische Beschaffenheit der Meteoriten, translated by John A. Wood and K Mathilde Wood). Smithsonian Contributions to Astrophysics, Vol. 4: 137-239.
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: Reed, S.J.B. & Smith, D.G.W. (1985) Ion probe determinations of rare earths in merrillite and apatite in chondrites: Earth and Planetary Science Letters 72: 238-244.
Chromite
Formula: Fe2+Cr3+2O4
Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.; Semenenkov, V.P., Kolesov, G.M. & Ljul, A.Y. (1992) Composition and structure of black veins in Barbotan (H5) and Charsonville (H6) chondrites: Lunar and Planetary Conference XXIII:1263-1264. (March 1992).
'Clinopyroxene Subgroup'
Description: Small amounts of Ca-poor clinopyroxene are partially, at least, due to shock.
Reference: Semenenkov, V.P., Kolesov, G.M. & Ljul, A.Y. (1992) Composition and structure of black veins in Barbotan (H5) and Charsonville (H6) chondrites: Lunar and Planetary Conference XXIII:1263-1264. (March 1992).
Copper
Formula: Cu
Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
'Fayalite-Forsterite Series'
Description: Olivine Composition (Fa19) characteristic of H-group chondrites (Fa~17-20 mol%).
Reference: Merrill, G. P. (1916) Handbook and Descriptive Catalogue of the Meteorite Collections in the U.S. National Museum. Bull. U. S. Natl. Museum, No.94, Washington. 207 pp., 41 pls.; Keil, K. & Fredriksson, K. (1964) The Fe, Mg, and Ca Distribution in Coexisting Olivines and Rhombic Pyroxenes of Chondrites. Journal of Geophysical Research Atmospheres 69 (16): 3487-3515. (August 1964).; Mason, B. (1967) Olivine Composition in Chondrites—a supplement: Geochimica et Cosmochimica Acta 31(6):1100-1103. (June 1967).; Semenenkov, V.P., Kolesov, G.M. & Ljul, A.Y. (1992) Composition and structure of black veins in Barbotan (H5) and Charsonville (H6) chondrites: Lunar and Planetary Conference XXIII:1263-1264. (March 1992).
Ilmenite
Formula: Fe2+TiO3
Reference: Semenenkov, V.P., Kolesov, G.M. & Ljul, A.Y. (1992) Composition and structure of black veins in Barbotan (H5) and Charsonville (H6) chondrites: Lunar and Planetary Conference XXIII:1263-1264. (March 1992).
Iron
Formula: Fe
Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Iron var: Kamacite
Formula: (Fe,Ni)
Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.; Semenenkov, V.P., Kolesov, G.M. & Ljul, A.Y. (1992) Composition and structure of black veins in Barbotan (H5) and Charsonville (H6) chondrites: Lunar and Planetary Conference XXIII:1263-1264. (March 1992).
Merrillite
Formula: Ca9NaMg(PO4)7
Reference: Reed, S.J.B. & Smith, D.G.W. (1985) Ion probe determinations of rare earths in merrillite and apatite in chondrites: Earth and Planetary Science Letters 72: 238-244.
'Orthopyroxene Subgroup'
Reference: Keil, K. & Fredriksson, K. (1964) The Fe, Mg, and Ca Distribution in Coexisting Olivines and Rhombic Pyroxenes of Chondrites. Journal of Geophysical Research Atmospheres 69 (16): 3487-3515. (August 1964).; Semenenkov, V.P., Kolesov, G.M. & Ljul, A.Y. (1992) Composition and structure of black veins in Barbotan (H5) and Charsonville (H6) chondrites: Lunar and Planetary Conference XXIII:1263-1264. (March 1992).
Taenite
Formula: (Fe,Ni)
Reference: Semenenkov, V.P., Kolesov, G.M. & Ljul, A.Y. (1992) Composition and structure of black veins in Barbotan (H5) and Charsonville (H6) chondrites: Lunar and Planetary Conference XXIII:1263-1264. (March 1992).
Troilite
Formula: FeS
Reference: Merrill, G. P. (1916) Handbook and Descriptive Catalogue of the Meteorite Collections in the U.S. National Museum. Bull. U. S. Natl. Museum, No.94, Washington. 207 pp., 41 pls.; Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.; Semenenkov, V.P., Kolesov, G.M. & Ljul, A.Y. (1992) Composition and structure of black veins in Barbotan (H5) and Charsonville (H6) chondrites: Lunar and Planetary Conference XXIII:1263-1264. (March 1992).

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Iron1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Taenite1.AE.10(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Ilmenite4.CB.05Fe2+TiO3
Group 8 - Phosphates, Arsenates and Vanadates
Merrillite8.AC.45Ca9NaMg(PO4)7
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Orthopyroxene Subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Iron
var: Kamacite
1.1.11.1(Fe,Ni)
Taenite1.1.11.2(Fe,Ni)
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Troilite2.8.9.1FeS
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
(AB)3(XO4)2
Merrillite38.3.4.4Ca9NaMg(PO4)7
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
Iron-Fe
'Orthopyroxene Subgroup'-

List of minerals for each chemical element

HHydrogen
H ApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
O ChromiteFe2+Cr23+O4
O ApatiteCa5(PO4)3(Cl/F/OH)
O MerrilliteCa9NaMg(PO4)7
O IlmeniteFe2+TiO3
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na MerrilliteCa9NaMg(PO4)7
MgMagnesium
Mg MerrilliteCa9NaMg(PO4)7
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
P MerrilliteCa9NaMg(PO4)7
SSulfur
S TroiliteFeS
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
CaCalcium
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca MerrilliteCa9NaMg(PO4)7
TiTitanium
Ti IlmeniteFe2+TiO3
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe TroiliteFeS
Fe ChromiteFe2+Cr23+O4
Fe Iron (var: Kamacite)(Fe,Ni)
Fe IronFe
Fe IlmeniteFe2+TiO3
Fe Taenite(Fe,Ni)
NiNickel
Ni Iron (var: Kamacite)(Fe,Ni)
Ni Taenite(Fe,Ni)
CuCopper
Cu CopperCu

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Merrill, G. P. (1916) Handbook and Descriptive Catalogue of the Meteorite Collections in the U.S. National Museum. Bull. U. S. Natl. Museum, No.94, Washington. 207 pp., 41 pls.
Keil, K. & Fredriksson, K. (1964) The Fe, Mg, and Ca Distribution in Coexisting Olivines and Rhombic Pyroxenes of Chondrites. Journal of Geophysical Research Atmospheres 69 (16): 3487-3515. (August 1964).
Tschermak, G., Wood, J.A. & Wood, K.M. (1964) The Microscopic Properties of Meteorites by Gustav Tschermak (Die Mikroskopische Beschaffenheit der Meteoriten, translated by John A. Wood and K Mathilde Wood). Smithsonian Contributions to Astrophysics, Vol. 4: 137-239.
Mason, B. (1967) Olivine Composition in Chondrites—a supplement: Geochimica et Cosmochimica Acta 31(6):1100-1103. (June 1967).
Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Reed, S.J.B. & Smith, D.G.W. (1985) Ion probe determinations of rare earths in merrillite and apatite in chondrites: Earth and Planetary Science Letters 72: 238-244.
Wasson, J. & Wang, S. (1991) The histories of ordinary chondrite parent bodies: U,Th-He age distributions. Meteoritics 26(2): 161-167. (June 1991).
Semenenkov, V.P., Kolesov, G.M. & Ljul, A.Y. (1992) Composition and structure of black veins in Barbotan (H5) and Charsonville (H6) chondrites: Lunar and Planetary Conference XXIII:1263-1264. (March 1992).
Graf, Th. & Marti K. (1995) Collisional history of H chondrites. J. Geophys. Res. (Planets) 100: 21247–21263. (Oct 1995).
Grady, M.M. (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge; New York; Oakleigh; Madrid; Cape Town. 689 pages.
Grady, M.M., Pratesi, G. & Moggi-Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages.

External Links


Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent

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