Tongo Maaré Diabal (Horizon 4)
Basic information
Sample name: Tongo Maaré Diabal (Horizon 4)
Reference: N. Gestrich and K. C. MacDonald. 2018. On the margins of Ghana and Kawkaw: four seasons of excavation at Tongo Maaré Diabal (AD 500-1150), Mali. Journal of African Archaeology 16(1):1-30 [ER 3767]
Geography
Country: Mali
State: Mopti
Coordinate: 15° 0' N, 2° 57' W
Coordinate basis: based on nearby landmark
Time interval: Holocene
Section: 3767
Unit number: 4
Unit order: below to above
Max Ma: 0.00105
Min Ma: 0.00095
Age basis: radiocarbon (calibrated)
Geography comments: "Tongo Maaré Diabal (TMD) lies in a narrow strip of flatland between two sheer sandstone escarpments (Bandiagara and Dyoundé), 1 km north of the modern town of Douentza, Mali" (basis of coordinate).
"Seven radiocarbon dates provide a 650 year time span for the excavation’s discrete sequence of building events (horizons)". Horizon 4 ranges from AD 900-1000.
"Seven radiocarbon dates provide a 650 year time span for the excavation’s discrete sequence of building events (horizons)". Horizon 4 ranges from AD 900-1000.
Environment
Lithology: not described
Taphonomic context: human accumulation,settlement
Archaeology: buildings,ceramics,hearths,metal tools,stone tools,other artifacts,other structures
Habitat comments: "Tongo Maaré Diabal is a settlement mound, 9 ha in extent, and approximately 3 to 4.5 m in elevation above the surrounding plain. The site is at a crossroads on land routes connecting Timbuktu and Gao to the Malian interior, as well as north-western Burkina Faso to the Niger Bend. The sequence of archaeological deposits contains five horizons of superimposed earthen buildings. The occupation appears to have been continuous from the site’s foundation to its abandonment".
"Horizon 4 witnesses a repair of the southern wall of the western structure with coursed earth and the building of a second concession wall, apparently isolating the two structures from one another. It is also at this time that a small pit is dug beneath the doorway of the eastern structure, containing ash and the broken remains of a terracotta equestrian statuette. To the north, a clear zone of fine layers of burnt earth, charcoal and working slag demarcates an area of iron working. Dense evidence for metallurgy remains in the northern concession throughout the rest of the sequence. Two technically and visually distinctive pottery traditions occurred at the site from the beginning of its occupation. Large stone grinding basins were found in some rooms, along with frequent finds of hand grinders throughout the sequence, evidencing the processing of grains in and around the buildings".
"Horizon 4 witnesses a repair of the southern wall of the western structure with coursed earth and the building of a second concession wall, apparently isolating the two structures from one another. It is also at this time that a small pit is dug beneath the doorway of the eastern structure, containing ash and the broken remains of a terracotta equestrian statuette. To the north, a clear zone of fine layers of burnt earth, charcoal and working slag demarcates an area of iron working. Dense evidence for metallurgy remains in the northern concession throughout the rest of the sequence. Two technically and visually distinctive pottery traditions occurred at the site from the beginning of its occupation. Large stone grinding basins were found in some rooms, along with frequent finds of hand grinders throughout the sequence, evidencing the processing of grains in and around the buildings".
Methods
Life forms: carnivores,rodents,ungulates,other small mammals,birds,fishes
Sampling methods: quarry,screenwash
Sample size: 76 specimens
Years: 1993, 1995, 1996, 2010
Sampling comments: "In 1993, 1995 and 1996 two 4 x 4 m units were excavated, termed A and B, joined by a 1 x 4 m baulk (C). This area was excavated to a maximum depth of 4 m before reaching sterile soil. A further 4 x 4 m unit (D) located on the western part of the site, was only excavated to a depth of 1.3 m".
"The main exposure of the 2010 excavations was positioned directly adjacent to units A, B and C. An initial 9 x 5 m trench (unit E) was extended to the northwest by a further 7 x 5 m area (unit F) for a total excavated area of 125 m2 (Exposure 1). In these two units, only the uppermost occupation horizon was excavated, 50 to 80 cm below the surface. A 7 x 4 m unit (Exposure 2) was also excavated on the eastern part of the site".
"The main exposure of the 2010 excavations was positioned directly adjacent to units A, B and C. An initial 9 x 5 m trench (unit E) was extended to the northwest by a further 7 x 5 m area (unit F) for a total excavated area of 125 m2 (Exposure 1). In these two units, only the uppermost occupation horizon was excavated, 50 to 80 cm below the surface. A 7 x 4 m unit (Exposure 2) was also excavated on the eastern part of the site".
Metadata
Sample number: 4033
Contributor: Benjamin Carter
Enterer: Benjamin Carter
Created: 2022-10-27 13:36:11
Modified: 2023-05-30 02:58:00
Abundance distribution
14 species
5 singletons
total count 76
geometric series index: 26.6
Fisher's α: 5.041
geometric series k: 0.7973
Hurlbert's PIE: 0.8628
Shannon's H: 2.2356
Good's u: 0.9342
Each square represents a species. Square sizes are proportional to counts.
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