NappeIn geology, a nappe or thrust sheet is a large sheetlike body of rock that has been moved more than or above a thrust fault from its original position. Nappes form in compressional tectonic settings like continental collision zones or on the overriding plate in active subduction zones. Nappes form when a mass of rock is forced (or "thrust") over another rock mass, typically on a low angle fault plane. The resulting structure may include large-scale recumbent folds, shearing along the fault plane, imbricate thrust stacks, fensters and klippes.
TyrolTyrol (tɪˈroʊl,_taɪˈroʊl,_ˈtaɪroʊl ; historically the Tyrole; Tirol tiˈʁoːl; Tirolo) is a historical region in the Alps of Northern Italy and western Austria. The area was historically the core of the County of Tyrol, part of the Holy Roman Empire, Austrian Empire and Austria-Hungary, from its formation in the 12th century until 1919.
AustriaAustria (Österreich), formally the Republic of Austria (Republik Österreich), is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine provinces, one of which is the capital, Vienna, the most populous city and province. Austria is bordered by Germany to the northwest, Czechia to the north, Slovakia to the northeast, Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the west. The country occupies an area of and has a population of 9 million.
Swiss AlpsThe Alpine region of Switzerland, conventionally referred to as the Swiss Alps (Schweizer Alpen, Alpes suisses, Alpi svizzere, Alps svizras), represents a major natural feature of the country and is, along with the Swiss Plateau and the Swiss portion of the Jura Mountains, one of its three main physiographic regions. The Swiss Alps extend over both the Western Alps and the Eastern Alps, encompassing an area sometimes called Central Alps.
Po ValleyThe Po Valley, Po Plain, Plain of the Po, or Padan Plain (Pianura Padana pjaˈnuːra paˈdaːna, or Val Padana) is a major geographical feature of Northern Italy. It extends approximately in an east-west direction, with an area of including its Venetic extension not actually related to the Po river basin; it runs from the Western Alps to the Adriatic Sea. The flatlands of Veneto and Friuli are often considered apart since they do not drain into the Po, but they effectively combine into an unbroken plain, making it the largest in Southern Europe.
South TyrolSouth Tyrol (Südtirol ˈsyːtiˌroːl, ˈzyːttiˌʁoːl; Alto Adige ˈalto ˈaːdidʒe; Südtirol), officially the Autonomous Province of Bolzano, is an autonomous province in Northern Italy, one of the two that make up the autonomous region of Trentino-Alto Adige/Südtirol (the other being the Autonomous Province of Trento). The province is the northernmost of Italy, the second largest, with an area of and has a total population of about 534,000 inhabitants as of 2021. Its capital and largest city is Bolzano (Bozen; Balsan or Bulsan).
