Bholghati meteorite, Deoli pargana, Mayurbhanj district, Odisha, Indiai
Regional Level Types | |
---|---|
Bholghati meteorite | Meteorite Fall Location |
Deoli pargana | - not defined - |
Mayurbhanj district | District |
Odisha | State |
India | Country |
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Latitude & Longitude (WGS84):
22° 4' 59'' North , 86° 54' 0'' East
Latitude & Longitude (decimal):
Locality type:
Meteorite Class:
Meteoritical Society Class:
KΓΆppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
JhΔrgrΔm | 57,796 (2018) | 42.3km |
KalaΔ«kunda | 3,232 (2014) | 44.0km |
Jaleshwar | 23,280 (2014) | 45.7km |
ChΔkuliΔ | 14,952 (2014) | 48.2km |
Kharagpur | 219,665 (2014) | 52.2km |
Fall, 29 Oct 1905; 2.5 kg, 2 stones
Howardite with eucritic, diogenitic and carbonaceous clasts
After detonations, two stones fell only 500 meters apart at the village of Bholghati. Like all Howardites, Bholghati is a breccia composed primarily of eucritic and diogenitic fragments, which were incompletely mixed by impacts and metamorphism after their original formation ~4.5 billion years ago on their ancient home world. Highly variable, but anorthite-rich eucritic components account for just over half of Bholghati's bulk, while orthopyroxene-rich diogenitic material accounts for most of the rest. Minute monomineralic fragments abound, but larger single mineral clasts and multi-mineral aggregates are found as well. While most larger clasts are readily recognized as eucrite and diogenite fragments, a few carbonaceous chondrite-like fragments are also present. Indeed, the carbonaceous material accounts for ~ 3% of the meteorite - including clasts rich in CM and CR2 material. Minor silicates and opaques found in most HED meteorites are found, but the meteorite's total mineralogical inventory is further enriched by the addition of phyllosilicates, Ni-bearing sulfides, and other low temperature phases found in the carbonaceous clasts. Very small amounts of Fe-rich metal are found - some is ordinary meteoritic Fe-Ni metal (mostly kamacite), but Ni-poor iron is also reported.
As is true of most igneously derived meteorites in the Howardite-Eucrite-Diogenite clan (HED meteorites) most of the Bholgati eucritic and matrix material crystallized ~4.5 billion yeas ago. However, K-Ar ages and disturbed Rb-Sr patterns indicate subsequent important event(s) occurring < three billion yeas ago [presumably impact(s)]. At some point, a moderately small asteroidal fragment was launched into space. Cosmic ray ages suggest that sometime in the past ~20 million years or so, Bholghati became part of an even smaller meteoroid with an orbit designed for an impact with earth. Oxygen isotope systematics and Fe-Mn ratios indicate that Bholgati is one of the many 'normal' HED meteorites apparently derived from a single parent body. At the present time, Vesta appears to have been that parent body. [A few meteorites (e.g., Ibitira, Pasamonte) are apparent HED 'look-a-likes' from a separate parent body, but Bholgati is not one of them.]
Bholgati photos available at the Meteoritical Bulletin Database provide a nice visual match for the mineralogy and geochemistry summarized here. Most areas are dominated by milky white plagioclase, accompanied by translucent pyroxenes. The various clasts of different colors and sizes include a few greenish pyroxenites and smaller, much darker carbonaceous clasts.
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Standard Detailed Gallery Strunz Chemical ElementsMineral List
16 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 Antigorite Formula: Mg3(Si2O5)(OH)4 Reference: Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990) |
β Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 Reference: Mason B., Jarosewich, E. & Nelen, J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45. ; Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990) |
β Chromite Formula: Fe2+Cr3+2O4 Reference: Fuhrman, M. & Papike, J. J. (1982) Howardites and polymict eucrites: Regolith samples from the eucrite parent body - Petrology of Bholgati, Bununu, Kapoeta, and ALHA 76005. Lunar and Planetary Science Conference XIII: 1257-1279. (March 1982); Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990); Buchanan, P. C., Zolensky, M. E., & Reid, A. M. (1993) Carbonaceous chondrite clasts in the howardites Bholghati and EET87513: Meteoritics 28 (5): 659-669. (Dec 1993) |
β Clinoenstatite Formula: MgSiO3 Reference: Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990) |
β 'Clinopyroxene Subgroup' Reference: Buchanan, P. C., Zolensky, M. E., & Reid, A. M. (1993) Carbonaceous chondrite clasts in the howardites Bholghati and EET87513: Meteoritics 28 (5): 659-669. (Dec 1993) |
β Enstatite Formula: Mg2Si2O6 Description: Enstatite (En99-100) found in carbonaceous clasts Reference: Buchanan, P. C., Zolensky, M. E., & Reid, A. M. (1993) Carbonaceous chondrite clasts in the howardites Bholghati and EET87513: Meteoritics 28 (5): 659-669. (Dec 1993) |
β 'Fayalite-Forsterite Series' Description: While olivine can occasionally be highly forsteritic, Reid et al. (1990) report an overall range of (Fo72-Fo89) and Buchanan et al., (1993) found rim Olivine in C-clasts could be as low as Fo63. Reference: Mason B., Jarosewich, E. & Nelen, J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45. ; Fuhrman, M. & Papike, J. J. (1982) Howardites and polymict eucrites: Regolith samples from the eucrite parent body - Petrology of Bholgati, Bununu, Kapoeta, and ALHA 76005. Lunar and Planetary Science Conference XIII: 1257-1279. (March 1982); Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990); Buchanan, P. C., Zolensky, M. E., & Reid, A. M. (1993) Carbonaceous chondrite clasts in the howardites Bholghati and EET87513: Meteoritics 28 (5): 659-669. (Dec 1993) |
β Forsterite Formula: Mg2SiO4 Description: In Carbonaceous Clasts - Fo>99 at times. Reference: Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990); Buchanan, P. C., Zolensky, M. E., & Reid, A. M. (1993) Carbonaceous chondrite clasts in the howardites Bholghati and EET87513: Meteoritics 28 (5): 659-669. (Dec 1993) |
β Ilmenite Formula: Fe2+TiO3 Reference: Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990) |
β Iron Formula: Fe Reference: Hewins, R. H. (1979) The composition and origin of metal in howardites: Geochimica et Cosmochimica Acta 43: 1663-1673. (Oct 1979) |
β Iron var. Kamacite Formula: (Fe,Ni) Reference: Hewins, R. H. (1979) The composition and origin of metal in howardites: Geochimica et Cosmochimica Acta 43: 1663-1673. (Oct 1979); Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990) |
β Magnetite Formula: Fe2+Fe3+2O4 Description: small grains, esp. in carbonaceous clasts Reference: Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990) |
β 'Orthopyroxene Subgroup' Description: Orthopyroxene is the dominant pyroxene and is quite prominent among clasts Reference: Mason B., Jarosewich, E. & Nelen, J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45. |
β Pentlandite Formula: (NixFey)Ξ£9S8 Description: In carbonaceous clasts Reference: Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990); Buchanan, P. C., Zolensky, M. E., & Reid, A. M. (1993) Carbonaceous chondrite clasts in the howardites Bholghati and EET87513: Meteoritics 28 (5): 659-669. (Dec 1993) |
β Pigeonite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 Description: a decidedly minor constituent Reference: Mason B., Jarosewich, E. & Nelen, J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45. |
β 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 Description: Within Eucrite clasts fine-grained texture is dominated by subhedral cloudy plagioclase (An 88.5-93) Reference: Mason B., Jarosewich, E. & Nelen, J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45. ; Fuhrman, M. & Papike, J. J. (1981) Howardites: Samples of the Regolith of the Eucrite Parent-Body Petrology of Bholgati, Bununu, and Kapoeta (abstract). Lunar and Planetary Science XII: 309-311. (March 1981); Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990) |
β 'Pyroxene Group' Formula: ADSi2O6 Description: Quite variable, including Ca-rich & Ca-poor varieties; Mason et al., (1979) provides a range of Fs23-62;Fuhrman & Papike (1981)give En26-85 Reference: Mason B., Jarosewich, E. & Nelen, J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45. ; Fuhrman, M. & Papike, J. J. (1981) Howardites: Samples of the Regolith of the Eucrite Parent-Body Petrology of Bholgati, Bununu, and Kapoeta (abstract). Lunar and Planetary Science XII: 309-311. (March 1981); Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990) |
β Pyrrhotite Formula: Fe1-xS Description: In carbonaceous clasts Reference: Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990); Buchanan, P. C., Zolensky, M. E., & Reid, A. M. (1993) Carbonaceous chondrite clasts in the howardites Bholghati and EET87513: Meteoritics 28 (5): 659-669. (Dec 1993) |
β Saponite Formula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O Reference: Buchanan, P. C., Zolensky, M. E., & Reid, A. M. (1993) Carbonaceous chondrite clasts in the howardites Bholghati and EET87513: Meteoritics 28 (5): 659-669. (Dec 1993) |
β 'Silica' Reference: Mason B., Jarosewich, E. & Nelen, J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45. ; Fuhrman, M. & Papike, J. J. (1982) Howardites and polymict eucrites: Regolith samples from the eucrite parent body - Petrology of Bholgati, Bununu, Kapoeta, and ALHA 76005. Lunar and Planetary Science Conference XIII: 1257-1279. (March 1982); Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990) |
β Spinel Formula: MgAl2O4 Reference: Buchanan, P. C., Zolensky, M. E., & Reid, A. M. (1993) Carbonaceous chondrite clasts in the howardites Bholghati and EET87513: Meteoritics 28 (5): 659-669. (Dec 1993) |
β Taenite Formula: (Fe,Ni) Description: Taenite sometimes present in Kamacite-taenite intergrowths Reference: Hewins, R. H. (1979) The composition and origin of metal in howardites: Geochimica et Cosmochimica Acta 43: 1663-1673. (Oct 1979) |
β Troilite Formula: FeS Description: Some Troilite found in small eutectic metal melts Reference: Hewins, R. H. (1979) The composition and origin of metal in howardites: Geochimica et Cosmochimica Acta 43: 1663-1673. (Oct 1979); Reid, A. M., Buchanan, P. C., Zolensky, M. E., Nicols, R. H. & Barrett, R. A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA 54 (8): 2161-2166. (Aug 1990) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
β | Iron | 1.AE.05 | Fe |
β | var. Kamacite | 1.AE.05 | (Fe,Ni) |
β | Taenite | 1.AE.10 | (Fe,Ni) |
Group 2 - Sulphides and Sulfosalts | |||
β | Pentlandite | 2.BB.15 | (NixFey)Ξ£9S8 |
β | Pyrrhotite | 2.CC.10 | Fe1-xS |
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 | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
β | Spinel | 4.BB.05 | MgAl2O4 |
Group 9 - Silicates | |||
β | Antigorite | 9.ED.15 | Mg3(Si2O5)(OH)4 |
β | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
β | Clinoenstatite | 9.DA.10 | MgSiO3 |
β | Enstatite | 9.DA.05 | Mg2Si2O6 |
β | Forsterite | 9.AC.05 | Mg2SiO4 |
β | Pigeonite | 9.DA.10 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
β | Saponite | 9.EC.45 | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 Β· nH2O |
Unclassified Minerals, Rocks, etc. | |||
β | 'Clinopyroxene Subgroup' | - | |
β | 'Fayalite-Forsterite Series' | - | |
β | 'Orthopyroxene Subgroup' | - | |
β | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
β | 'Pyroxene Group' | - | ADSi2O6 |
β | 'Silica' | - |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | β Antigorite | Mg3(Si2O5)(OH)4 |
H | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
O | Oxygen | |
O | β Pyroxene Group | ADSi2O6 |
O | β Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
O | β Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
O | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
O | β Chromite | Fe2+Cr23+O4 |
O | β Antigorite | Mg3(Si2O5)(OH)4 |
O | β Clinoenstatite | MgSiO3 |
O | β Forsterite | Mg2SiO4 |
O | β Ilmenite | Fe2+TiO3 |
O | β Magnetite | Fe2+Fe23+O4 |
O | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
O | β Enstatite | Mg2Si2O6 |
O | β Spinel | MgAl2O4 |
Na | Sodium | |
Na | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Mg | Magnesium | |
Mg | β Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Mg | β Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Mg | β Antigorite | Mg3(Si2O5)(OH)4 |
Mg | β Clinoenstatite | MgSiO3 |
Mg | β Forsterite | Mg2SiO4 |
Mg | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
Mg | β Enstatite | Mg2Si2O6 |
Mg | β Spinel | MgAl2O4 |
Al | Aluminium | |
Al | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Al | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
Al | β Spinel | MgAl2O4 |
Si | Silicon | |
Si | β Pyroxene Group | ADSi2O6 |
Si | β Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Si | β Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Si | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Si | β Antigorite | Mg3(Si2O5)(OH)4 |
Si | β Clinoenstatite | MgSiO3 |
Si | β Forsterite | Mg2SiO4 |
Si | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
Si | β Enstatite | Mg2Si2O6 |
S | Sulfur | |
S | β Troilite | FeS |
S | β Pentlandite | (NixFey)Ξ£9S8 |
S | β Pyrrhotite | Fe1-xS |
Ca | Calcium | |
Ca | β Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Ca | β Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Ca | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Ca | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
Ti | Titanium | |
Ti | β Ilmenite | Fe2+TiO3 |
Cr | Chromium | |
Cr | β Chromite | Fe2+Cr23+O4 |
Fe | Iron | |
Fe | β Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Fe | β Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Fe | β Iron var. Kamacite | (Fe,Ni) |
Fe | β Taenite | (Fe,Ni) |
Fe | β Iron | Fe |
Fe | β Troilite | FeS |
Fe | β Chromite | Fe2+Cr23+O4 |
Fe | β Ilmenite | Fe2+TiO3 |
Fe | β Magnetite | Fe2+Fe23+O4 |
Fe | β Pentlandite | (NixFey)Ξ£9S8 |
Fe | β Pyrrhotite | Fe1-xS |
Fe | β Saponite | Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O |
Ni | Nickel | |
Ni | β Iron var. Kamacite | (Fe,Ni) |
Ni | β Taenite | (Fe,Ni) |
Ni | β Pentlandite | (NixFey)Ξ£9S8 |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Mason B., Jarosewich, E., Nelen, J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45.
Hewins, R.H. (1979) The composition and origin of metal in howardites: Geochimica et Cosmochimica Acta: 43: 1663-1673.
Delaney, J.S., Nehru, C.E., Prinz M. (1980) Olivine Clasts from mesosiderites and howardites: Clues to the nature of achondritic parent bodies. Lunar Planetary Science Conference XI: 1037-1087.
Fuhrman, M., Papike, J.J. (1981) Howardites: Samples of the Regolith of the Eucrite Parent-Body Petrology of Bholgati, Bununu, and Kapoeta (abstract). Lunar and Planetary Science: XII: 309-311.
Fuhrman, M., Papike, J. J. (1982) Howardites and polymict eucrites: Regolith samples from the eucrite parent body - Petrology of Bholgati, Bununu, Kapoeta, and ALHA 76005. Lunar and Planetary Science Conference XIII: 1257-1279.
Mayeda, T.K., Clayton, R.N. (1989) Oxygen Isotopes in the Bholghati Howardite (abstract): Lunar and Planetary Science Conference XX: 648.
Reid, A.M., Buchanan, P.C., Zolensky, M.E., Nicols, R.H., Barrett, R.A. (1990) The Bholgati Howardite: Petrography and mineral chemistry. G&CA: 54(8): 2161-2166.
Buchanan, P.C., Zolensky, M.E., Reid, A.M. (1993) Carbonaceous Chondrite clasts in the howardites Bholghati and EET87513. Meteoritics: 28(5): 659-668.
Grady, M.M. (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town, 690 pages.
External Links
http://www.lpi.usra.edu/meteor/metbull.php = Meteoritical Bulletin Database
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