Bajo de Véliz Formation, Geological formation in Junín Department, Argentina
The Bajo de Véliz Formation is a geological sequence in Junín Department made up of different rock layers stacked on top of each other. It reaches roughly 168 meters thick and shows how sediments accumulated in an ancient basin over millions of years.
Scientists named this formation in 1969 and identified it as deposits from roughly 300 million years ago. It records a transition between two major time periods in Earth's history and holds traces of plants and animals from that distant era.
The formation remains an active site for geological research, attracting scientists who study ancient plant and insect interactions from late Carboniferous periods.
The site is best visited during drier months when paths are easier to access. Coming prepared for outdoor conditions and bringing suitable gear for fieldwork is important for safely exploring the area.
The formation divides into three distinct sections, each with its own rock characteristics and types of fossils. Each section preserves different clues about life from 300 million years ago.
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