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Maridi meteorite, Maridi, Western Equatoria, South Sudani
| Regional Level Types | |
|---|---|
| Maridi meteorite | Meteorite Fall Location |
| Maridi | Town |
| Western Equatoria | State |
| South Sudan | Country |
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Latitude & Longitude (WGS84):
4° 40' North , 29° 15' East
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Maridi | 14,224 (2017) | 36.9km |
Ordinary chondrite (H6)
Fell, Autumn 1941, 15 hrs; 3.2 kg, single stone
A single stone fell near the source of the Sueh river. Textures and composition of equilibrated Olivine (Fa19) and low Ca-orthopyroxene ('bronzite') in chondrules and matrix are characteristic of H6 ordinary chondrites. Mineralogically the meteorite consists primarily of dominant olivine and orthopyroxene along with minor amounts of Fe-Ni metal (both kamacite and taenite) and troilite. Accessory chromite and copper are also reported.
A Pb,Th:He age of 3.92 Ga and a cosmic-ray exposure (CRE) age of 15.5 Ma are reported.
The H (relatively high in total iron) chondrites are the second largest group of ordinary chondrite falls and represent nearly 40% of well-classified and witnessed meteorite falls. The H6 petrologic type constitutes ~25 % of the group. Maridi is one of 94 meteorite falls currently classified exactly as an H6 [May 2017].
The main mass has been kept at the Museum of the Geological Survey of Sudan (Khartoum). A small fragment (labelled as 'Esu') was obtained by the United States National Museum (Washington).
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:
| ⓘ Chromite Formula: Fe2+Cr3+2O4 |
| ⓘ 'Fayalite-Forsterite Series' Description: Olivine Composition (Fa19) characteristic of H-group chondrites (Fa~17-20 mol%). |
| ⓘ Isocubanite Formula: CuFe2S3 |
| ⓘ Native Copper Formula: Cu |
| ⓘ Native Iron Formula: Fe |
| ⓘ Native Iron var. Kamacite Formula: (Fe,Ni) |
| ⓘ 'Orthopyroxene Subgroup' Description: Orthopyroxene is a primary constituent of all relatively equilibrated meteorites classified as a 'Olivine-bronzite' chondrites. |
| ⓘ Taenite Formula: (Fe,Ni) |
| ⓘ Troilite Formula: FeS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| ⓘ | Native Iron | 1.AE.05 | Fe |
| ⓘ | var. Kamacite | 1.AE.05 | (Fe,Ni) |
| ⓘ | Taenite | 1.AE.10 | (Fe,Ni) |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Isocubanite | 2.CB.55b | CuFe2S3 |
| ⓘ | Troilite | 2.CC.10 | FeS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
| Unclassified | |||
| ⓘ | 'Fayalite-Forsterite Series' | - | |
| ⓘ | 'Orthopyroxene Subgroup' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Chromite | Fe2+Cr23+O4 |
| O | ⓘ Fayalite-Forsterite Series | |
| Mg | Magnesium | |
| Mg | ⓘ Fayalite-Forsterite Series | |
| Si | Silicon | |
| Si | ⓘ Fayalite-Forsterite Series | |
| S | Sulfur | |
| S | ⓘ Isocubanite | CuFe2S3 |
| S | ⓘ Troilite | FeS |
| Cr | Chromium | |
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | Iron | |
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | ⓘ Native Iron | Fe |
| Fe | ⓘ Isocubanite | CuFe2S3 |
| Fe | ⓘ Native Iron var. Kamacite | (Fe,Ni) |
| Fe | ⓘ Taenite | (Fe,Ni) |
| Fe | ⓘ Troilite | FeS |
| Fe | ⓘ Fayalite-Forsterite Series | |
| Ni | Nickel | |
| Ni | ⓘ Native Iron var. Kamacite | (Fe,Ni) |
| Ni | ⓘ Taenite | (Fe,Ni) |
| Cu | Copper | |
| Cu | ⓘ Native Copper | Cu |
| Cu | ⓘ Isocubanite | CuFe2S3 |
Other Regions, Features and Areas containing this locality
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References
www.nhm.ac.uk (n.d.) https://www.nhm.ac.uk/our-science/data/metcat/search/detail.dsml?Key=M870&passed_Name=Maridi&index=&sort=Name&Country=Sudan&beginIndex=5&listPageURL=list%2Edsml%3Fsort%3DName%26Country%3DSudan&
Mason, Brian (1963) Olivine composition in chondrites. Geochimica et Cosmochimica Acta, 27 (10) 1011-1023 doi:10.1016/0016-7037(63)90062-0
