Sunday, February 7, 2010

Black Forest (Schwarzwald)

Black Forest (Schwarzwald) is a wooded mountain range in southwestern It is bordered by the Rhine valley to the west and south. The highest peak is the mountain Feldberg with an elevation of 1,493 meters. The region is almost rectangular with a length of 200 km and breadth of 60 km.

Geologically, the Black Forest consists of a cover of sandstone on top of a core of gneiss and granites. Formerly it shared tectonic evolution with the nearby Vosges Mountains. Later during the Middle Eocene a rifting period affected the area and caused formation of the Rhine graben. During the last glacial period of the Würm glaciation, the Black Forest was covered by glaciers; several tarn lakes such as the Mummelsee are remains of this period.

The forest mostly consists of pines and firs, some of which are grown in commercial monoculture. Similar to other forested regions, the Black Forest has had areas damaged by mass logging. Due to logging and land use changes the forest proper is only a fraction of the size it used to be. The storm Lothar knocked down trees over hundreds of acres of mountaintops in 1999. This left some of the high peaks and scenic hills bare, with only primary growth shrubs and young fir trees.

The main industry is tourism. In addition to the towns and monuments noted below, the Black Forest is crossed by numerous long distance footpaths, including some of the first to be established. The European long-distance path E1 crosses the Black Forest following the routes of some of the local long-distance paths. In addition there are numerous shorter paths suitable for day walks, as well as mountain biking and cross-country skiing trails. The total network of tracks amounts to around 23,000 kilometres (14,000 mi), and is maintained and overseen by a voluntary body, the Schwarzwaldverein (Black Forest Society), which has around 90,000 members (figures from Bremke, 1999, p.9).

Source : wikipedia.org

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Monday, February 1, 2010

The Bay of Fundy

The Bay of Fundy is renown for having the highest tides on the planet (16.2 metres or 53 feet). One hundred billion tonnes of sea water flows in and out of the Bay of Fundy twice daily – more water than the combined flow of all the world’s fresh water rivers. Fundy’s extreme tides create a dynamic and diverse marine ecosystem. The Bay is renown for its coastal rock formations, extreme tidal effects (vertical, horizontal, rapids and bores) and sustainable coastal development. It is also a critical international feeding ground for migratory birds, a vibrant habitat for rare and endangered Right whales, one of the world’s most significant plant and animal fossil discovery regions. The Bay of Fundy is located between the Canadian provinces of New Brunswick and Nova Scotia on North America’s east coast.

The Bay of Fundy lies in a rift valley called the Fundy Basin; as the rift began to separate from mainland North America, volcanic activity occurred, forming volcanoes and flood basalts. These flood basalts poured out over the landscape, covering much of southern Nova Scotia. Sections of the flood basalts have been eroded away, but still form a basaltic mountain range known as North Mountain. As a result, much of the basin floor is made of tholeiitic basalts giving its brown colour. The rift valley eventually failed (see aulacogen) as the Mid-Atlantic Ridge continued to separate North America, Europe, and Africa.

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