Personal Narrative Of Travels To The Equinoctial Regions Of America During The Years 1799-1804 - Volume 3 - By Alexander Von Humboldt And Aime Bonpland.
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The Llanos Of Venezuela Furnish Examples Of Such
Eruptions Near Para(?) Like Harudje (Mons Ater, Plin.) On The Northern
Boundary Of The African Desert (The Sahara).
Hills of sandstone rising
like towers, walls and fortified castles and offering great analogy to
quadersandstein, bound the American desert
Towards the west, on the
south of Arkansas.) The basin of the steppes is itself the bottom of a
sea destitute of islands; it is only on the south of the Apure,
between that river and the Meta, near the western bank of the Sierra,
that a few hills appear, as Monte Parure, la Galera de Sinaruco and
the Cerritos de San Vicente. With the exception of the fragments of
tertiary strata above mentioned there is, from the equator to the
parallel of 10 degrees north (between the meridian of Sierra Nevada de
Merida and the coast of Guiana), if not an absence, at least a
scarcity of those petrifactions, which strikes an observer recently
arrived from Europe.
The maxima of the height of the different formations diminish
regularly in the country we are describing with their relative ages.
These maxima, for gneiss-granite (Peak of Duida in the group of
Parime, Silla de Caracas in the coast chain) are from 1300 to 1350
toises; for the limestone of Cumanacoa (summit or Cucurucho of
Turimiquiri), 1050 toises; for the limestone of Caripe (mountains
surrounding the table-land of the Guarda de San Augustin), 750 toises;
for the sandstone alternating with the limestone of Cumanacoa
(Cuchilla de Guanaguana), 550 toises; for the tertiary strata (Punta
Araya), 200 toises.
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