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On the north coast of Spain occurs the Cantabrian zone. Then to the west and also in the Iberian Chain and Catalan Coastal Ranges is the West Asturian-Leonese zone. Then the Central Iberian zone appears near A Coruña, through the north of Portugal, and through the middle of Spain, including the Montes de Toledo.
In the Mesozoic, Late Jurassic Africa started moving east, and the Alpine Tethys opened. Subsidence related to this caused deep deposits of sediments on the east and some sediment remnants in pop downs in central parts of Spain.
The Mesozoic is the middle of the three eras since complex life evolved: the Paleozoic, the Mesozoic, and the Cenozoic. The era began in the wake of the Permian–Triassic extinction event , the largest mass extinction in Earth's history, and ended with the Cretaceous–Paleogene extinction event , another mass extinction whose victims included ...
The Triassic is the first and shortest period of the Mesozoic Era and the seventh period of the Phanerozoic Eon. Both the start and end of the period are marked by major extinction events. [10] The Triassic Period is subdivided into three epochs: Early Triassic, Middle Triassic and Late Triassic.
The Cretaceous (IPA: / k r ɪ ˈ t eɪ ʃ ə s / krih-TAY-shəss) [2] is a geological period that lasted from about 143.1 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest.
Mesozoic Era geology of Spain. Subcategories. This category has the following 2 subcategories, out of 2 total. C. Cretaceous Spain (3 C, 110 P) J. Jurassic Spain (21 ...
The middle class has been shrinking. In 1971, 61% of American households were considered to be middle class, and that number has dropped to 50% three decades later, a Pew Research Center analysis...
It marked the end of the Cretaceous period, and with it the Mesozoic era, while heralding the beginning of the current era, the Cenozoic. In the geologic record , the K–Pg event is marked by a thin layer of sediment called the K–Pg boundary, Fatkito boundary or K–T boundary , which can be found throughout the world in marine and ...