Talk:Tepui
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[edit] Insurmountable?
More information please. The article says "Kukenam Tepui...can no longer be climbed, as the precipice and the high plateau are particularly insurmountable." Either it is or it isn't insurmountable -- no qualifier is possible here. Is there a reason why it can no longer be climbed (a law, perhaps) or just that folks have given up trying (unlikely)? Xuehxolotl 23:17, 11 February 2007 (UTC)
[edit] Is it or is it not?
Some of the most outstanding tepuis are Autana, Pico da Neblina (the highest one, on the Venezuelan-Brazil border)
But, the Pico da Neblina article states it is NOT a tepui. Anyone can solve this? 85.243.174.167 19:19, 25 October 2007 (UTC)
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Pico da Neblina is most definitely NOT a tepui, and I have just edited the page to remove that incorrect information. See some pictures in this gallery, especially this picture, the third from the top in the rightmost column, titled "Acampamento Base" ("base camp" in Portuguese). One can see that Pico da Neblina is far from being a tabletop mountain - it has a rather sharp and steep pyramid-like shape. It is part of a "conventional" massif in an also "conventional" mountain range, the Serra do Imeri (as it is called in Brazil) or Serranía de la Neblina (as it is known in Venezuela), and does not share the unique features of a tepui. (The range is rather unconventional, though, in the sense that it has an unusually high altitude that interrupts an otherwise very low-lying plain on both sides of the range.)
If you have a look at a good map of South America that shows the political divisions of both Venezuela and Brazil, tepuis are almost exclusively found in the Venezuelan state of Bolívar, north of the Brazilian state of Roraima. The Imeri/Neblina range, while still belonging to the Guiana Highlands, is hundreds of kilometres or miles away, between the Brazilian and Venezuelan homonymous states of Amazonas, closer to Colombia. The two areas are very different from each other, and tepuis are not typical of the Neblina area's relief. There are other differences: for example, the area where tepuis are found is a savannah or open grassland (known as Gran Sabana in Venezuela), while the area around Neblina is covered with Amazon rainforest.
Please check again the Pico da Neblina article, because I have added new information to it. (I have always been fascinated by that mountain, so sheer and strange, and inaccessible to mere urbanite out-of-shape mortals like me, and I collect all information I can get about it.)
--UrsoBR (talk) 11:15, 20 November 2007 (UTC)
[edit] Oldest Rocks?
"They are typically composed of sheer blocks of Precambrian sandstone or quartzite rocks" If the Tepuis are comprised of sedimentary rocks then they are certainly not the "oldest exposed rocks in the world", as the article claims. Exposed granites in Canada are likely older. Any Geologists care to correct? —Preceding unsigned comment added by 84.173.195.29 (talk) 19:54, 4 January 2008 (UTC)
