Personal Narrative Of Travels To The Equinoctial Regions Of America During The Years 1799-1804 - Volume 2 - By Alexander Von Humboldt And Aime Bonpland.
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It Rises In
The Midst Of The Plain, And Has Less Resemblance To A Tumulus Than To
Those Masses Of Granitic Stone, Which In North Holland And Germany
Bear The Name Of Hunenbette, Beds (Or Tombs) Of Heroes.
The shore, at
this part of the Orinoco, is no longer of pure and quartzose sand; but
is composed of clay and spangles of mica, deposited in very thin
strata, and generally at an inclination of forty or fifty degrees.
It
looks like decomposed mica-slate. This change in the geological
configuration of the shore extends far beyond the mouth of the Apure.
We had begun to observe it in this latter river as far off as
Algodonal and the Cano del Manati. The spangles of mica come, no
doubt, from the granite mountains of Curiquima and Encaramada; since
further north-east we find only quartzose sand, sandstone, compact
limestone, and gypsum. Alluvial earth carried successively from south
to north need not surprise us in the Orinoco; but to what shall we
attribute the same phenomenon in the bed of the Apure, seven leagues
west of its mouth? In the present state of things, notwithstanding the
swellings of the Orinoco, the waters of the Apure never retrograde so
far; and, to explain this phenomenon, we are forced to admit that the
micaceous strata were deposited at a time when the whole of the very
low country lying between Caycara, Algodonal, and the mountains of
Encaramada, formed the basin of an inland lake.
We stopped some time at the port of Encaramada, which is a sort of
embarcadero, a place where boats assemble. A rock of forty or fifty
feet high forms the shore. It is composed of blocks of granite, heaped
one upon another, as at the Schneeberg in Franconia, and in almost all
the granitic mountains of Europe. Some of these detached masses have a
spheroidal form; they are not balls with concentric layers, but merely
rounded blocks, nuclei separated from their envelopes by the effect of
decomposition. This granite is of a greyish lead-colour, often black,
as if covered with oxide of manganese; but this colour does not
penetrate one fifth of a line into the rock, which is of a reddish
white colour within, coarse-grained, and destitute of hornblende.
The Indian names of the Mission of San Luis del Encaramada, are Guaja
and Caramana.* (* All the Missions of South America have names
composed of two words, the first of which is necessarily the name of a
saint, the patron of the church, and the second an Indian name, that
of the nation, or the spot where the establishment is placed. Thus we
say, San Jose de Maypures, Santa Cruz de Cachipo, San Juan Nepomuceno
de los Atures, etc. These compound names appear only in official
documents; the Inhabitants adopt but one of the two names, and
generally, provided it be sonorous, the Indian. As the names of saints
are several times repeated in neighbouring places, great confusion in
geography arises from these repetitions.
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