iv_g (iv_g) wrote,

Эль-Капитан (гора, Калифорния)

Эль Капитан

Эль-Капитан — одна из крупнейших по величине горных вершин — монолитов в Северной Америке. Расположен в национальном парке Йосемити, штат Калифорния, США. Вершина находится на высоте 2307 м над уровнем моря, или примерно 910 метров над долиной Йосемити. Состоит из гранита, на восточном склоне горы находится «огненный» водопад «Лошадиный хвост» (англ. Horsetail Fall)

The formation was named "El Capitan" by the Mariposa Battalion when it explored the valley in 1851.

El Capitan is composed almost entirely of El Capitan Granite, a pale, coarse-grained granite emplaced approximately 100 mya (million years ago). In addition to El Capitan, this granite forms most of the rock features of the western portions of Yosemite Valley. A separate intrusion of igneous rock, the Taft Granite, forms the uppermost portions of the cliff face.

Along with most of the other rock formations of Yosemite Valley, El Capitan was carved by glacial action. Several periods of glaciation have occurred in the Sierra Nevada, but the Sherwin Glaciation, which lasted from approximately 1.3 mya to 1 mya, is considered to be responsible for the majority of the sculpting. The El Capitan Granite is relatively free of joints, and as a result the glacial ice did not erode the rock face as much as other, more jointed, rocks nearby.

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Tags: masterok, wikipedia.org, Калифорния, геологические объекты, горы, фото
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