strato etymology

Etymology

The word "strato" is derived from the Greek word "στρωμα" (stroma), meaning "layer" or "bed."

Meaning

In geology, a strato is a distinct layer of rock that is formed by the accumulation of volcanic ash, lava, and pyroclastic material. Stratos are commonly associated with volcanoes and are formed during volcanic eruptions.

Origin

The concept of a strato was first introduced by the Italian geologist Giuseppe Mercalli in 1873. Mercalli used the term to describe the distinct layers of volcanic rock that he observed in the Somma-Vesuvius volcanic complex in Italy. Since then, the term "strato" has been widely used in geology to describe similar layers of volcanic rock found in various geological settings.

Examples

  • Stratos are found in the caldera of Mount St. Helens, Washington, USA.
  • The Columbia River Basalt Group in the Pacific Northwest of the United States is composed of numerous lava flows and ash-fall deposits that form distinct stratos.
  • The Deccan Traps in India, one of the largest volcanic features on Earth, is made up of multiple lava flows and ash-fall deposits that have formed a thick sequence of stratos.

strato relate terms

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  • nuance

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  • present

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  • heel

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  • discourse

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