Paraguayan polka Paraguayan polka Paraguayan polka, also known as Danza Paraguaya (Paraguayan dance), is a style of music created in Paraguay in the 19th century. The Paraguayan polka is very different from the traditional polka, mainly because the Paraguayan version combines ternary and binary rhythms, whereas the European only uses binary. The juxtaposition of the mentioned rhythms gives the peculiar sound that characterizes this style. There are several variants of the Paraguayan polka such as "polca syryry", "polca kyre'y", "polca popo", "polca saraki", "polca galopa", "polca jekutu". All of them are slightly different because of the different influences and styles adopted by
Types of volcanic eruptions Types of volcanic eruptions Several types of volcanic eruptions—during which lava, tephra (ash, lapilli, volcanic bombs and volcanic blocks), and assorted gases are expelled from a volcanic vent or fissure—have been distinguished by volcanologists. These are often named after famous volcanoes where that type of behavior has been observed. Some volcanoes may exhibit only one characteristic type of eruption during a period of activity, while others may display an entire sequence of types all in one eruptive series. There are three different types of eruptions. The most well-observed are magmatic eruptions, which involve the decompression of gas within magma that