"period" in inglés with examples - Collocation dictionary inglés
- The eroded volcano has had at least four major eruptive periods during the past 15,000 years.
- Nevado del Ruiz has undergone three distinct eruptive periods, the first beginning 1.8 million years ago.
- At least one eruptive period lasted for 18 hours, creating an "exceptionally uniform" deposit.
- The second eruptive period, the Cougar Stage, started 20,000 years ago and lasted for 2,000 years.
- This eruptive period built a broad composite cone made of dacite and breccia.
- A series of pillow lavas were also deposited during this eruptive period.
- It has since alternated between eruptive and calm periods.
- The most recent eruptive period of Lassen Peak began in 1914, and lasted for about seven years (see below).
- The current volcanic cone formed during the present eruptive period, which began 150 thousand years ago.
- During its eruptive periods, population numbers can reach hundreds of individuals per square hectare.
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