Schist (/ ˈ ʃ ɪ s t / SHIST) is a medium-grained metamorphic rock showing pronounced schistosity.This means that the rock is composed of mineral grains easily seen with a low-power hand lens, oriented in such a way that the rock is easily split into thin flakes or plates.This texture reflects a high content of platy minerals, such as micas, talc, chlorite, or graphite.

The Fahrenheit scale (/ ˈ f æ r ə n ˌ h aɪ t, ˈ f ɑː r-/) is a temperature scale based on one proposed in 1724 by the physicist Daniel Gabriel Fahrenheit (1686–1736). It uses the degree Fahrenheit (symbol: °F) as the unit.Several accounts of how he originally defined his scale exist, but the original paper suggests the lower defining point, 0 °F, was established as the freezing ...

Chennakeshava Temple, also referred to as Keshava, Kesava or Vijayanarayana Temple of Belur, is a 12th-century Hindu temple in the Hassan district of Karnataka state, India. It was commissioned by King Vishnuvardhana in 1117 CE, on the banks of the Yagachi River in Belur also called Velapura, an early Hoysala Empire capital. The temple was built over three …

The St. Francis Dam was a concrete gravity dam located in San Francisquito Canyon in Los Angeles County, California, United States, built from 1924 to 1926 to serve Los Angeles's growing water needs. It catastrophically failed in 1928 due to a defective soil foundation and design flaws, triggering a flood that claimed the lives of at least 431 people. The collapse of the dam is …

Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place. The particles that form a sedimentary rock are called sediment, and may be composed of geological detritus (minerals) …

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The geology of the Grand Canyon area includes one of the most complete and studied sequences of rock on Earth. The nearly 40 major sedimentary rock layers exposed in the Grand Canyon and in the Grand Canyon National Park area range in age from about 200 million to nearly 2 billion years old. Most were deposited in warm, shallow seas and near ancient, long …

Prince Thutmose served as a priest of Ptah in ancient Memphis. His full royal titles were "Crown Prince, Overseer of the Priests of Upper and Lower Egypt, High Priest of Ptah in Memphis and Sm-priest (of Ptah)."He is known from a relatively small number of objects. A small schist statuette in the Louvre Museum shows the prince as a miller and another small schist statue …

Nebbiolo (/ ˌ n ɛ b i ˈ oʊ l oʊ /, Italian: [nebˈbjɔːlo]; Piedmontese: nebieul) is an Italian red wine grape variety predominantly associated with its native Piedmont region, where it makes the Denominazione di Origine Controllata e Garantita (DOCG) wines of Barolo, Barbaresco, Roero, Gattinara, Carema and Ghemme.Nebbiolo is thought to derive its name from the Italian nebbia …

Blueschist (/ ˈ b l uː ʃ ɪ s t /), also called glaucophane schist, is a metavolcanic rock that forms by the metamorphism of basalt and rocks with similar composition at high pressures and low temperatures (200–500 °C (392–932 °F)), approximately corresponding to a depth of 15–30 km (9.3–18.6 mi). The blue color of the rock comes from the presence of the predominant minerals ...