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(Redirected from Apacará-tepui)
Fragmented complex of tepuis in Venezuela
The Chimantá Massif is a highly fragmented complex of tepuis in Bolívar state, Venezuela. The massif comprises around 11 tepuis and has a total summit area of 615 km (237 sq mi) and an estimated slope area of 915 km (353 sq mi). It is divided in two by the Río Tírica, with the northern section being both larger and higher. The massif is notable for its high species richness and for its varied habitat types. It reaches an elevation of 2,698 metres (8,852 ft) on its highest peak, Murey-tepui (also known as Eruoda-tepui). The massif is situated entirely within the bounds of Canaima National Park. It hosts extensive cave systems, including the world's largest known quartzite cave, Cueva Charles Brewer, named after discoverer Charles Brewer-Carías. The processes behind their speleogenesis are the subject of some debate.
The isolated southern peaks of Angasima-tepui and Upuigma-tepui are sometimes considered part of the Chimantá Massif.
Tepuis
The major tepuis of the northern and southern parts of the Chimantá Massif are listed below. Coordinates given correspond to the approximate centre points of the tepui summit plateaus. Unless otherwise indicated, all information in the tables is sourced from Flora of the Venezuelan Guayana.
^ Nogué, S., V. Rull, E. Montoya, O. Huber & T. Vegas-Vilarrúbia (October 2009). Paleoecology of the Guayana Highlands (northern South America): Holocene pollen record from the Eruoda-tepui, in the Chimantá massif. Palaeogeography, Palaeoclimatology, Palaeoecology281(1–2): 165–173. doi:10.1016/j.palaeo.2009.07.019
Briceño, H., C. Schubert & J. Paolini (1990). Table-mountain geology and surficial geochemistry: Chimantá Massif, Venezuelan Guayana Shield. Journal of South American Earth Sciences3(4): 179–194. doi:10.1016/0895-9811(90)90002-I
Aubrecht, R., C. Brewer-Carías, B. Šmída, M. Audy & Ľ. Kováčik (30 January 2008). Anatomy of biologically mediated opal speleothems in the world's largest sandstone cave: Cueva Charles Brewer, Chimantá Plateau, Venezuela. Sedimentary Geology203(3–4): 181–195. doi:10.1016/j.sedgeo.2007.10.005
Aubrecht, R., T. Lánczos, M. Gregor, J. Schlögl, B. Šmída, P. Liščák, C. Brewer-Carías & L. Vlček (15 September 2011). Sandstone caves on Venezuelan tepuis: return to pseudokarst? Geomorphology132(3–4): 351–365. doi:10.1016/j.geomorph.2011.05.023
Sauro, F., L. Piccini, M. Mecchia & J. De Waele (2013). Comment on "Sandstone caves on Venezuelan tepuis: return to pseudokarst?" by R. Aubrecht, T. Lánczos, M. Gregor, J. Schlögl, B. Smída, P. Liscák, Ch. Brewer-Carías, L. Vlcek, Geomorphology 132 (2011), 351–365. Geomorphology, published online on 29 November 2012. doi:10.1016/j.geomorph.2012.11.015
Aubrecht, R., T. Lánczos, M. Gregor, J. Schlögl, B. Šmída, P. Liščák, C. Brewer-Carías & L. Vlček (2013). Reply to the comment on "Sandstone caves on Venezuelan tepuis: return to pseudokarst?". Geomorphology, published online on 30 November 2012. doi:10.1016/j.geomorph.2012.11.017
(in Spanish) Huber, O. (ed.) (1992). El Macizo del Chimantá, Escudo de Guayana, Venezuela. Un ensayo ecológico tepuyano. Oscar Todtmann Editores, Caracas. ISBN980-6028-16-3
List sourced from volume 1 of Flora of the Venezuelan Guayana; includes landforms that may not strictly conform to the definition of a tepui or table mountain. Poorly known sites or lower mountains treated as tepuis for historical reasons.