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Lode Formation
The Gauja Formation is a Middle Devonian fossil locality in Estonia and Latvia. It is named after the Gauja, Gauja River, where it is exposed along the banks. Description The Gauja Formation has a maximum thickness of . It is composed of weakly to moderately cemented layers of fine-grained to very fine-grained sandstone. The layer is predominantly light to yellowish-gray in color, but can be pinkish brown or variegated. It is mostly composed of quartzose arenites. It is overlain by the thick Amata Formation and the Plavinas Formation. The Gauja Formation contains two cyclic members. The lower layers are known as the Sietiņi Member and are composed mostly of sandstone with a thin layer of siltstone at the top. The upper layers are thicker, and the lower part of it is known as the Lode Member. The Lode Member dates from the Middle Devonian and is composed of light colored sandstone. The area is indicative of a near-shore environment of retreating sea. Paleontology The Si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gauja River
The Gauja River (, ) is a river in the Vidzeme region of Latvia. It is the only large river of Latvia that begins and ends its flow in Latvia. Its length is 460 km, of which 93.5 km (approximately one-fifth) are in Gauja National Park. In this part, the Gauja River flows through the Gauja Valley, which is between 1 and 2.5 km wide, and the maximum depth near Sigulda is 85 m. Thus, the Gauja is the longest river of Latvia if only the parts of the river in the country's territory are counted. The Daugava has only 367 km in Latvia, whereas the entire length of the river is over 1,000 km. The sandstone rocks on the banks of the Gauja and its adjoining rivers started forming 370 to 300 million years ago, during the Devonian period. History Before the 13th century, the Gauja River used to serve as a trade route and border river between the Livonians, Livonian and Latgallians, Latgalian lands. In some territories, they used to live mixed together. When Livon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
