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Acfer 059/El Djouf 001 meteorites, Tanezrouft, Tamanghasset Province, Algeriai
Regional Level Types
Acfer 059/El Djouf 001 meteoritesMeteorite Fall Location
Tanezrouft- not defined -
Tamanghasset ProvinceProvince
AlgeriaCountry

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Key
Latitude & Longitude (WGS84):
23° 25' 59'' North , 1° 25' 0'' West
Latitude & Longitude (decimal):
Köppen climate type:


Paired CR2 chondrite meteorites.
El Djouf 001 [Adrar], 1.25 kg, 30 fragments
Acfer [Tamanghasset] 059,087,097,114,139,186,187,209,270,311;~1.8 kg

In 1993 with the aid of a number of coworkers, A. Bischoff spearheaded an effort which established to the satisfaction of the meteoritical community that a fragmented 1 kg meteorite found in Adrar, Algeria and a set of 10 small, somewhat scattered meteorites found in Tamanghasset, Algeria — 500 km away — were pieces of the same meteorite fall. The El Djouf 001 meteorite and the 10 Acfer meteorite fragments are still given separate listings at The Meteoritical Society's 'Meteorite Bulletin Database, but they are considered as a single meteorite in the literature. The meteorite is characterized by abundant chondrules and chondrule fragments (~ 60 vol%), very-fine grained matrix (~ 25 vol%), Fe-Ni metal (8-10 vol%), small dark clasts (~ 3-4 vol%) and rare CAI inclusions. Common properties of the chondrules, serpentine-rich phyllosilicate matrices, ubiquitous dark inclusions, unusual nitrogen isotopes, similar weathering histories, and cosmic ray exposure ages combine to set the fragments apart from other somewhat CR chondrites.

While the fragments share a plenitude of common properties, the detailed specifics of the dark inclusions are both intriguing and diverse. Hundreds have been studied and they usually represent 2-4 vol% of any given (numbered) fragment. The smectite-, magnetite-, and pyrrhotite-rich dark inclusions appear to have existed before the chondrules, metal, and matrix were brought together to form the CR parent body/bodies.

The comparatively large complement of solar wind components found in the meteorite suggest that the Acfer-El Djouf meteoroid itself appears to have existed as a very small object for about 6 million years before encountering the earth.

Regions containing this locality

African PlateTectonic Plate
Sahara Desert, North AfricaDesert
Northwest Africa MeteoritesMeteorite Fall Location

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


14 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:

Anorthite
Formula: Ca(Al2Si2O8)
Reference: Weber, D., & Bischoff, A. (1992, March). Mineralogy and chemistry of refractory inclusions in CR-like chondrites from the Sahara desert. In Lunar and Planetary Institute Science Conference Abstracts (Vol. 23, p. 1505).
'Clinopyroxene Subgroup'
Description: Clinopyroxene-Orthopyroxene intergrowths due to quenching at high T
Reference: Greshake, A., Krot, A. N. & Keil, K. (2004) Mineralogy and Chemistry of Fine-grained Matrices, Rims, and Dark Inclusions in the CR Carbonaceous Chondrites Acfer/El Djouf 001 and the Ungrouped Carbonaceous Chondrites Acfer 094 and Adelaide. Workshop on Chondrites and Protoplanetary Disk, pdf.9041. (Nov 2004)
Enstatite
Formula: MgSiO3
Description: Most chondrule pyroxene is Mg-rich orthopyroxene (Fs1-3).
Reference: Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).
'Fayalite-Forsterite Series'
Description: Olivine - In chondrules and matrix, normally Mg-rich, but variable (Fa0-50). Undulose extinction due to severe shock.
Reference: Weisberg, M. K. & Prinz, M. (1991) El Djouf 001: A new CR2 chondrite. Meteoritics 26 (4): 406-407. (Dec 1991).; Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).; Greshake, A., Krot, A. N. & Keil, K. (2004) Mineralogy and Chemistry of Fine-grained Matrices, Rims, and Dark Inclusions in the CR Carbonaceous Chondrites Acfer/El Djouf 001 and the Ungrouped Carbonaceous Chondrites Acfer 094 and Adelaide. Workshop on Chondrites and Protoplanetary Disk, pdf.9041. (Nov 2004)
Forsterite
Formula: Mg2SiO4
Description: Most chondrule olivine is quite Mg-rich (Fa1-4).
Reference: Weber, D., & Bischoff, A. (1992, March). Mineralogy and chemistry of refractory inclusions in CR-like chondrites from the Sahara desert. In Lunar and Planetary Institute Science Conference Abstracts (Vol. 23, p. 1505).; Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).
'Glass'
Reference: Varela, Maria Eugenia, Kurat, Gero, Hoppe, Petter & Brandstätter, Franz. (2002) Chemistry of glass inclusions in olivines of the CR chondrites Renazzo, Acfer 182, and El Djouf 001. Geochimica et Cosmochimica Acta 66 ( 9): 1663-1679. (May 2002).
Grossite
Formula: CaAl4O7
Reference: Weber D, Bischoff A (1994) Grossite (CaAl4O7) - a rare phase in terrestrial rocks and meteorites, European Journal of Mineralogy 6, 591-594 ; Weber, D., & Bischoff, A. (1992, March). Mineralogy and chemistry of refractory inclusions in CR-like chondrites from the Sahara desert. In Lunar and Planetary Institute Science Conference Abstracts (Vol. 23, p. 1505).
Hibonite
Formula: CaAl12O19
Reference: Weber D, Bischoff A (1994) Grossite (CaAl4O7) - a rare phase in terrestrial rocks and meteorites, European Journal of Mineralogy 6, 591-594 ; Weber, D., & Bischoff, A. (1992, March). Mineralogy and chemistry of refractory inclusions in CR-like chondrites from the Sahara desert. In Lunar and Planetary Institute Science Conference Abstracts (Vol. 23, p. 1505).
Ilmenite
Formula: Fe2+TiO3
Reference: Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Weisberg, M. K. & Prinz, M. (1991) El Djouf 001: A new CR2 chondrite. Meteoritics 26 (4): 406-407. (Dec 1991).
Magnesite
Formula: MgCO3
Reference: Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).
Magnesite var: Breunnerite
Formula: (Mg,Fe)CO3
Reference: Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).; Greshake, A., Krot, A. N. & Keil, K. (2004) Mineralogy and Chemistry of Fine-grained Matrices, Rims, and Dark Inclusions in the CR Carbonaceous Chondrites Acfer/El Djouf 001 and the Ungrouped Carbonaceous Chondrites Acfer 094 and Adelaide. Workshop on Chondrites and Protoplanetary Disk, pdf.9041. (Nov 2004)
'Melilite Group'
Formula: Ca2M(XSiO7)
Description: Prominent Melilite, Perovskite, Spinel, Hibonite associated in some dark inclusions in El Djouf 001 and Acfer 087 fragments.
Reference: Weber D, Bischoff A (1994) Grossite (CaAl4O7) - a rare phase in terrestrial rocks and meteorites, European Journal of Mineralogy 6, 591-594 ; Weber, D., & Bischoff, A. (1992, March). Mineralogy and chemistry of refractory inclusions in CR-like chondrites from the Sahara desert. In Lunar and Planetary Institute Science Conference Abstracts (Vol. 23, p. 1505).
'Meteoritic Iron'
Description: Fe-Ni metal is quite variable in nickel content (4-48%), but predominantly of kamacite composition.
Reference: Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).
'Orthopyroxene Subgroup'
Reference: Greshake, A., Krot, A. N. & Keil, K. (2004) Mineralogy and Chemistry of Fine-grained Matrices, Rims, and Dark Inclusions in the CR Carbonaceous Chondrites Acfer/El Djouf 001 and the Ungrouped Carbonaceous Chondrites Acfer 094 and Adelaide. Workshop on Chondrites and Protoplanetary Disk, pdf.9041. (Nov 2004)
Pentlandite
Formula: (FexNiy)Σ9S8
Reference: Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).
Perovskite
Formula: CaTiO3
Reference: Weber D, Bischoff A (1994) Grossite (CaAl4O7) - a rare phase in terrestrial rocks and meteorites, European Journal of Mineralogy 6, 591-594 ; Weber, D., & Bischoff, A. (1992, March). Mineralogy and chemistry of refractory inclusions in CR-like chondrites from the Sahara desert. In Lunar and Planetary Institute Science Conference Abstracts (Vol. 23, p. 1505).
'Pyroxene Group'
Reference: Weisberg, M. K. & Prinz, M. (1991) El Djouf 001: A new CR2 chondrite. Meteoritics 26 (4): 406-407. (Dec 1991).; Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).; Greshake, A., Krot, A. N. & Keil, K. (2004) Mineralogy and Chemistry of Fine-grained Matrices, Rims, and Dark Inclusions in the CR Carbonaceous Chondrites Acfer/El Djouf 001 and the Ungrouped Carbonaceous Chondrites Acfer 094 and Adelaide. Workshop on Chondrites and Protoplanetary Disk, pdf.9041. (Nov 2004)
Pyrrhotite
Formula: Fe7S8
Description: Pyrrhotite unusually prominent in dark inclusion F1B1 of Acfer 059.
Reference: Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).
Saponite
Formula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Description: Saponite-serpentine intergrowths in some dark inclusions indicative of disequilibrium.
Reference: Greshake, A., Krot, A. N. & Keil, K. (2004) Mineralogy and Chemistry of Fine-grained Matrices, Rims, and Dark Inclusions in the CR Carbonaceous Chondrites Acfer/El Djouf 001 and the Ungrouped Carbonaceous Chondrites Acfer 094 and Adelaide. Workshop on Chondrites and Protoplanetary Disk, pdf.9041. (Nov 2004)
Schreibersite
Formula: (Fe,Ni)3P
Reference: Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Description: Serpentine most abundant in matrix,
Reference: Weisberg, M. K. & Prinz, M. (1991) El Djouf 001: A new CR2 chondrite. Meteoritics 26 (4): 406-407. (Dec 1991).; Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).; Greshake, A., Krot, A. N. & Keil, K. (2004) Mineralogy and Chemistry of Fine-grained Matrices, Rims, and Dark Inclusions in the CR Carbonaceous Chondrites Acfer/El Djouf 001 and the Ungrouped Carbonaceous Chondrites Acfer 094 and Adelaide. Workshop on Chondrites and Protoplanetary Disk, pdf.9041. (Nov 2004)
'Smectite Group'
Formula: A0.3D2-3[T4O10]Z2 · nH2O
Description: Smectite slightly more abundant in dark inclusions, serpentine more abundant in matrix.
Reference: Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).
Spinel
Formula: MgAl2O4
Description: CAI Spinel in spinel-pyroxene aggregates.
Reference: Weber D, Bischoff A (1994) Grossite (CaAl4O7) - a rare phase in terrestrial rocks and meteorites, European Journal of Mineralogy 6, 591-594 ; Weber, D., & Bischoff, A. (1992, March). Mineralogy and chemistry of refractory inclusions in CR-like chondrites from the Sahara desert. In Lunar and Planetary Institute Science Conference Abstracts (Vol. 23, p. 1505).; Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R. N. & Mayeda, T. K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite: Meteoritics 29 (1): 26-40. (Jan 1994).

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Schreibersite1.BD.05(Fe,Ni)3P
Group 2 - Sulphides and Sulfosalts
Pentlandite2.BB.15(FexNiy)Σ9S8
Pyrrhotite2.CC.10Fe7S8
Group 4 - Oxides and Hydroxides
Grossite4.CC.15CaAl4O7
Hibonite4.CC.45CaAl12O19
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Perovskite4.CC.30CaTiO3
Spinel4.BB.05MgAl2O4
Group 5 - Nitrates and Carbonates
Magnesite5.AB.05MgCO3
var: Breunnerite5.AB.05(Mg,Fe)CO3
Group 9 - Silicates
Anorthite9.FA.35Ca(Al2Si2O8)
Enstatite9.DA.05MgSiO3
Forsterite9.AC.05Mg2SiO4
Saponite9.EC.45Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Unclassified Minerals, Rocks, etc.
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Glass'-
'Limonite'-(Fe,O,OH,H2O)
'Melilite Group'-Ca2M(XSiO7)
'Meteoritic Iron'-
'Orthopyroxene Subgroup'-
'Pyroxene Group'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Schreibersite1.1.21.2(Fe,Ni)3P
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 9:8
Pentlandite2.7.1.1(FexNiy)Σ9S8
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
Perovskite4.3.3.1CaTiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Spinel7.2.1.1MgAl2O4
(AB)10X14
Grossite7.3.2.1CaAl4O7
AB12X19
Hibonite7.4.1.1CaAl12O19
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Magnesite14.1.1.2MgCO3
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Enstatite65.1.2.1MgSiO3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 clays
Saponite71.3.1b.2Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Unclassified Minerals, Mixtures, etc.
Anorthite-Ca(Al2Si2O8)
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Glass'-
'Limonite'-(Fe,O,OH,H2O)
Magnesite
var: Breunnerite
-(Mg,Fe)CO3
'Melilite Group'-Ca2M(XSiO7)
'Meteoritic Iron'-
'Orthopyroxene Subgroup'-
'Pyroxene Group'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
H Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
H Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
H SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
CCarbon
C Magnesite (var: Breunnerite)(Mg,Fe)CO3
C MagnesiteMgCO3
OOxygen
O GrossiteCaAl4O7
O Melilite GroupCa2M(XSiO7)
O HiboniteCaAl12O19
O SpinelMgAl2O4
O PerovskiteCaTiO3
O ForsteriteMg2SiO4
O AnorthiteCa(Al2Si2O8)
O Limonite(Fe,O,OH,H2O)
O Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
O Magnesite (var: Breunnerite)(Mg,Fe)CO3
O EnstatiteMgSiO3
O IlmeniteFe2+TiO3
O MagnetiteFe2+Fe23+O4
O Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
O SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
O MagnesiteMgCO3
NaSodium
Na SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
MgMagnesium
Mg SpinelMgAl2O4
Mg ForsteriteMg2SiO4
Mg Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Mg Magnesite (var: Breunnerite)(Mg,Fe)CO3
Mg EnstatiteMgSiO3
Mg SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Mg MagnesiteMgCO3
AlAluminium
Al GrossiteCaAl4O7
Al HiboniteCaAl12O19
Al SpinelMgAl2O4
Al AnorthiteCa(Al2Si2O8)
Al Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Al SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
SiSilicon
Si Melilite GroupCa2M(XSiO7)
Si ForsteriteMg2SiO4
Si AnorthiteCa(Al2Si2O8)
Si Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Si EnstatiteMgSiO3
Si SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
PPhosphorus
P Schreibersite(Fe,Ni)3P
SSulfur
S Pentlandite(FexNiy)Σ9S8
S PyrrhotiteFe7S8
CaCalcium
Ca GrossiteCaAl4O7
Ca Melilite GroupCa2M(XSiO7)
Ca HiboniteCaAl12O19
Ca PerovskiteCaTiO3
Ca AnorthiteCa(Al2Si2O8)
Ca SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
TiTitanium
Ti PerovskiteCaTiO3
Ti IlmeniteFe2+TiO3
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe Limonite(Fe,O,OH,H2O)
Fe Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Fe Magnesite (var: Breunnerite)(Mg,Fe)CO3
Fe IlmeniteFe2+TiO3
Fe MagnetiteFe2+Fe23+O4
Fe Pentlandite(FexNiy)Σ9S8
Fe PyrrhotiteFe7S8
Fe Schreibersite(Fe,Ni)3P
Fe SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
NiNickel
Ni Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Ni Pentlandite(FexNiy)Σ9S8
Ni Schreibersite(Fe,Ni)3P
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Weisberg, M.K., Prinz, M. (1991) El Djouf 001: A new CR2 chondrite. Meteoritics, 26(4), 406-407 (Dec 1991).
Weber, D., Bischoff, A. (1992) Mineralogy and chemistry of refractory inclusions in CR-like chondrites from the Sahara desert. Lunar and Planetary Institute Science Conference Abstracts, 23, 1505 (Mar 1992).
Bischoff, A., Beckerling, W., Weber, D., Zinner, E. (1992) Calcium-Dialuminate-bearing Inclusions from the Saharan Meteorites ACFER 182, ACFER 087 and El Djouf 001: an Ion Probe Study. Meteoritics, 27(3), 204 (July 1992).
Bischoff, A. et al. (1993) Paired Renazzo-type (CR) carbonaceous chondrites from the Sahara. Geochimica et Cosmochimica Acta, 57(7), 1587-1603 (Apr 1993).
Endress, M., Keil, K., Bischoff, A., Spettel, B., Clayton, R.N., Mayeda, T.K. (1994) Origin of dark clasts in the ACFER 059/El Djouf 001 CR2 chondrite. Meteoritics, 29(1), 26-40 (Jan 1994).
Weber, D., Bischoff, A. (1994) Grossite (CaAl4O7) - a rare phase in terrestrial rocks and meteorites. European Journal of Mineralogy, 6, 591-594.
Werner, M., Ott, U., Begemann, F. (1995) C, N and SI Isotopes from the El Djouf 001 (CR) Meteorite: Comparison with Murchison SiC. Meteoritics, 30(5), 598 (Sep 1995).
Varela, Maria Eugenia, Kurat, Gero, Hoppe, Petter, Brandstätter, Franz (2002) Chemistry of glass inclusions in olivines of the CR chondrites Renazzo, Acfer 182, and El Djouf 001. Geochimica et Cosmochimica Acta, 66(9), 1663-1679 (May 2002).
Greshake, A., Krot, A.N., Keil, K. (2004) Mineralogy and Chemistry of Fine-grained Matrices, Rims, and Dark Inclusions in the CR Carbonaceous Chondrites Acfer/El Djouf 001 and the Ungrouped Carbonaceous Chondrites Acfer 094 and Adelaide. Workshop on Chondrites and Protoplanetary Disk, pdf 9041 (Nov 2004).

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