Tahamí Terrane

The Tahamí (Spanish: Terreno Tahamí, TT) or Tahamí-Panzenú Terrane is one of the geological provinces (terranes) of Colombia. The terrane, dating to the Permo-Triassic, is situated on the North Andes Plate. The contact with the Chibcha, Arquía and Quebradagrande Terranes is formed by the megaregional Romeral Fault System.[1] A tiny terrane is located at the contact with the Quebradagrande Terrane; Anacona Terrane.[2]

Tahamí Terrane
Stratigraphic range: Permo-Triassic (emplaced)
~280–230 Ma
Tahamí Terrane is enclosed by the Bucaramanga-Santa Marta Fault (orange), northernmost Oca Fault (white) and Romeral Fault System (violet)
TypeTerrane
Unit ofNorth Andes Plate
Sub-unitsSubunits
UnderliesArquía, Caribbean, La Guajira & Quebradagrande Terranes
OverliesChibcha Terrane
Lithology
PrimaryComplexes, basins
OtherVolcanoes
Location
Coordinates7°08′00″N 75°13′45″W
RegionAndean, Caribbean
Country Colombia
ExtentCentral, Macuira, SNSM
Type section
Named forTahamí, Nutabe
Tahamí Terrane (Colombia)
Tahamí Terrane (Antioquia Department)

The terrane is offset along the regional Bucaramanga-Santa Marta Fault from the Caribbean, La Guajira and Chibcha Terranes,[3] and by the regional Oca Fault with the Chibcha Terrane.[4]

Etymology
Geologic map of Colombia, Venezuela and Ecuador
(Codazzi, 1890)

The terrane is, as the Chibcha Terrane, named after an indigenous people from Antioquia; the Chibcha-speaking Tahamí, part of the greater Nutabe group. Panzenú refers to the Zenú civilization, that thrived from about 200 BCE to 1600 CE in the Sinú river basin.

Reinterpretation

A study performed by Mora Bohórquez et al. in 2017 showed no basement variation between the Chibcha Terrane San Lucas basement underlying the Lower Magdalena Valley (VIM) and the SNSM basement to the east of the Santa Marta Fault. The authors redefined the contacts between the different terranes, using the names Calima Terrane for the coastal portion of the Caribbean Terrane (San Jacinto and Sinú foldbelts) and Tahamí-Panzenú Terrane for the Tahamí Terrane.[5]

Subdivision

Complexes

  • Antioquia Batholith
    • Romeral
    • Hispania
    • Pueblito
    • Montegrande
    • Palmitas
    • Ayura Montebello
    • Medellín Dunite
    • Ceja
    • Medellín Amphibolite
    • San Isidro
  • Cambumbia
  • Úrsula
  • Amagá
  • La Honda
  • Alto de Minas
  • Norosí
  • Jonjoncito

Volcanoes

Main article: List of volcanoes in Colombia

Ranges

Basins

Faults

bounding faults in bold

  • North Andes Plate
  • Seismic activity map
  • Chibcha language distribution
    Tahamí are listed as Nutabes (14)
  • Map of Zenú civilization in NW Colombia

See also

References
  1. Paris et al., 2000, pp.20–26
  2. Gómez Tapias et al., 2015, p.209
  3. Paris et al., 2000, p.10
  4. Paris et al., 2000, p.9
  5. Mora Bohórquez et al., 2017, p.20
  6. Paris et al., 2000, p.29
  7. Paris et al., 2000, p.30
  8. Paris et al., 2000, p.49
  9. Paris et al., 2000, p.31
  10. Paris et al., 2000, p.28
  11. Paris et al., 2000, p.27

Terranes

Tahamí Terrane

Reports

Maps
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