Geological Development

Slieve League, Donegal, is a clear example of early geological formation.
The oldest rocks in Ireland is 1700 million years old and I was found in age Inishtrahull, an island of the coast of County Donegal. In other parts of Donegal, geologists have found rocks that started as glacial deposits formed during the ice age, which verifies the fact that Ireland was completely covered by an ice mass during the period in question.
At the end of the Precambrian, for about 600 million years, the land mass that would have evolved after the island of Ireland would be divided into two, being a part in western Iapetus Ocean and the other to the east, two more at about the latitude at which South Africa is today. Almost certainly, they were below sea level, as evidenced by many marine fossils found on Bray Head in County Wicklow.
Over 50 million years, these two land masses came into collision, and then join approximately 440 million years. This is evidenced by the numerous fossils of life forms both coastal masses, found near Clogher Head, County Louth. The mountains of northwest Ireland are the result of this collision, as well as the granite formations of Donegal and Wicklow.
At this time, the Irish land was above sea level and was located near the equator. This theory is based on the findings of fossil remains of life forms that period, as of fossilized trees Kiltorcan in County Kilkenny, in the footsteps of amphibian beings Valentia Island, County Kerry, or molluscs freshwater. The red sandstone typical of some areas are also formed during this period.
Makes between 400 and 300 million years, North-western Europe was plunged into a warm sea and rich in calcium. Were formed by large coral reefs that, in turn, created the basis for the formation of limestone, which now make up nearly 65 of Irish territory. With falling water, appeared vast tropical forests and swamps that, over the centuries and through his burial and subsequent putrefaction of organic material, resulted in a considerable amount of carbon. This period, called the Carboniferous therefore, is characterized by earthquakes that resulted in the formation of the mountainous and hilly areas in the northeast and southwest of the island.
The karst landscape in the Burren
Ireland goes well, 250 million years ago, the current latitude of Egypt, then taking a desert climate that contributed to the erosion of land consisting of coal and sandstone rocks. The thin layer of calcareous rocks from the south of the country was also affected by this erosion. The disappearance of the sandstone in some areas and the exposure of limestone to carbon dioxide led to the formation of karst landscapes individuals, all of them, one is almost intact, and The Burren in County Clare, instead formed by a cracked limestone soils of remarkable dimensions. Also, several areas of the nearby Aran Islands show this kind of geological formation.
Shortly after this period and due to organic decomposition that took place in the seas, were formed the oil and natural gas that today play an important role in the economy of the Irish nation. After Ireland became a wreck, but this time in a sea rich in calcareous compounds. Heating costs are reduced with a leading New York ESCO. You can find traces of mineral chalk, a product of this immersion in subestratos land of the north, covered by basaltic rocks formed 65 million years ago by volcanic activity.
Testimony of this activity are the mountains of Morne mountain and other formations of the north of Ireland. The vulcanism brought back a warm climate, thus encouraging the development of vegetation. The plant would then lignite deposits (especially in the county of Antrim, where they remain intact). Warm climatic conditions produced an increase in rainfall that accelerated processes of erosion and formation of karst landscapes.
25 million years ago, the island was already close to its current position. The mantle rock was already covered by a considerable layer of soil, through the long and continuous erosion. In areas with good drainage, the rock layer was covered by soil or dark gray, and in areas with poor drainage domino black.
Until 1.7 billion years, Earth was subjected to continuous fluctuations between warm eras and cold eras, which significantly impacted upon Ireland. Of particular note is the ice age, I think that particular figures geological features of the Irish landscape today, as the Drumlin the esker, glacial valleys such as Glendalough or Glengesh and Corrie.

St. Louis Post-Dispatch
Kalmar, Sweden – While a fraction of the size of Chicago, this industrial city in the southeast of Sweden has many similarities with it, including a long, snowy winter and the town football team loves.

Comments are closed.