viernes, 17 de octubre de 2014

growth of the mountains

THE GROWTH OF THE MOUNTAINS



Vertical Fastest Growing Mountains than expected:

  • Mountains can experience a "growth spurt" of growth that can double its height in such a short time geologically speaking as two to four million years, much faster than suggested by tectonic commonly accepted theory.
  • The traditional method to estimate the growth of the mountains is by understanding the history of folding and some other specific processes in the upper crust of the Earth.




THERE ARE SEVERAL TYPES OF MOUNTAINS:


There are four major types of mountains:


  • FOLDED MOUNTAIN: vary greatly in complexity, but are adjusted to the base rate. The Alps, Carpathians and Himalayas folded mountains form the most extensive in the world.




  • BLOCK MOUNTAINS: are large-scale structures failed. Are formed by a deep fault or a very large horst molded by erosion.



  • DOMES: are formed by the bulging of layers. By increasing the curvature, the surface is eroded and the core is exposed granite. When they are high up mountains and vast domed.

  • VOLCANIC MOUNTAINS: grow visibly during eruptions. When her last growth has been recent, its shape is hardly affected by erosion.



martes, 7 de octubre de 2014

Types of rocks

THE TYPE OF ROCKS


Rocks are natural aggregates (homogeneous systems) that occur on our planet in large masses. They consist of one or more minerals or mineral states.


  • TYPES OF ROCKS:
Different types of rocks can be divided according to their origin, into three major groups:


  • IGNEOUS: formed from the cooling of molten rock (magma). The magma can cool quickly on the surface of the earth by volcanic activity or slowly crystallize inside, causing large masses called plutonic rocks. When crystallized in bark crevices filonianas igneous rocks form the.

  • METAMORPHIC: formed from other rocks, without mixing, have been subjected to high pressures and temperatures and transformed.



  • SEDIMENTARY: formed in surface regions of the crust from materials deposited in layers or strata. They are detrital whether they originate from pieces of other rocks. Chemical and organic if formed from precipitation of chemical compounds or accumulation remains of living organisms.