Society for Creative Anachronism activities century) fencing manuals. Archery activities in the SCA include both target archery and combat archery, using equipment modified for safety in conjunction with armoured combat during melee scenarios. Armoured Combat (sometimes referred to as "Heavy Combat", "Heavy List", or "Heavy Fighting") using weapons fashioned to generally approximate the sword-and-shield, greatsword, spear, glaive and halberd of the High Middle Ages. Fencing or Rapier Combat, generally approximating the lightly armored "swashbuckling" of the 15th century and the 16th century, emphasizing the rapier over cutting swords. Many members of the Society study and practice period manuals from the salons of Western Europe whose
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