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geological

Archean OR TRAINING (for more than 4000 million years)

Precambrian

& Azo: has no life, begins to cool the earth's crust is called Archaic intensa.También volcanic activity began with the appearance of the Earth 4600 million years ago.

& Archean: Exes water vapor in the atmosphere, shields are formed feoescandinavos, ciberianos, Canadian minerals and metamorphic rocks, rocks are graphite as indirect evidence of life.

& Proterozoic: raining hard, oceans form, is completed cool the Earth, fauna unicellular algae, some multicellular animals like protozoa.

OR PRIMARY Paleozoic (600 million years ago) .

Age of Trilobites:

& Cambrian : At this time there glaceaciones at the beginning of period, intense volcanic activity, formation of folds, Appalachian and Ural, marine animals such as Trilobites (no vertebrate) was characterized by the appearance of ferns, moss, coral, scorpions, sponges, etc.

& Ordovician: Pangea (large land mass), won volcanic activity, period of formation of reefs, dominated by limestone, and begin the first vertebrates.

fish was :

& Silurian : it appeared salamanders tracheids amphibians, arachnids and fish early. Still the Earth is formed in pangea, had a uniform climate throughout the Earth, tectonic movements were strong, folding and elevation of sediments, first fish, first land plants, and at the end of the first period began forests.

& Devonian : life ceased to be predominantly marine and amphibians appeared, pangea, had desert climate, lots of fish, amphibians and seaweed first .

Age of amphibians:

& Carboniferous : Vegetation, by decomposing, giving rise to coal deposits. During this period the emergence of large scale dragonflies and trees, formed dosmasas continental inmensom formed a sea on the mainland of Russia, had a hot and humid climate, coal formation layers from Britain to Germany, given early reptiles and insects , giant ferns, horsetails and swamp forests.

& Permian: the first reptiles appeared, Great Continent Southern, in the southern hemisphere is cold weather, while in the northern hemisphere climate is desert, is that time formed the mountains, Appalachians and Urals, large vertebrate amphibian tetrapods, and at the end of this period appear conifers.

OR HIGH Mesozoic Era (160 million years ago) .

Age of reptiles

& Triassic : Small continents, there was a dry-warm climate, rise up large tracts of land, there was very low volcanic activity, formed deposits of oil and flee, many reptiles (lizards) fin fish, palm trees and conifer cones.

& Jurassic : In this period the sea turns to Europe in a large archipelago, form the seasons, the alpine furrow sinks and fills with sediments appear gigantentes lizards (dinosaurs), giant reptiles, flying reptiles, birds and primitive mammals, plants fanaerogamas as Magnolia and Tulip.

& Cretaceous or Cretaceous : At this time dominated the seas, there are the Pyrenees, Carpathians, Andes and Rocky Mountains, this epocaa dinosaurs extinguirieron.A middle of this period were formed more than 50% of global oil reserves.

Cenozoic Era (more than 70 million years)

Tertiary

In this age of mammals appeared while the intense volcanic activity changed the earth's crust. Is divided into five geologic periods: Pliocene, Miocene, Oligocene, Eocene and Paleocene.

features of this era are: the successive advances of the sea retreats, first frost, folding, alpine Malaysian was that created the mountains, Alps, Balkans, Caucasus, to the Himalayas, intense volcanic activity, eroded the Grand Canyon, beaked birds, mammals and insects, primitive four-toed horses, mammoths, mastodons, whales, seals were adapted to marine life, and appear to the apes.

Quaternary

& Pleistocene diluvial: The continents and oceans have the same features that have now formed four separate glacial periods with very warm intervals which favor the things that led to man (from Australopithecus to modern man.) The distribution of the plates and volcanoes tectonnicas is currently known, existing plants and animals, evolution of hominids, it appears the man a million years ago.

& Holocene: Distribution of current land and water, current weather seasons, the glaciers retreated to the polar regions and high mountains, intensifies erosion, plants and animals present, current life.