The concept of the 'Anthropocene' has gained significant traction in geological and environmental circles, positing that human activity has become a dominant force shaping Earth's systems. Proponents argue that markers such as nuclear fallout, plastic pollution, and elevated carbon dioxide levels constitute a distinct stratigraphic signature, warranting a new geological epoch. However, critics within the geological community contend that the term lacks formal precision, as these markers are not globally synchronous and may not persist over geological timescales. They suggest that the Anthropocene is more aptly described as an ongoing historical event rather than a formal chronostratigraphic unit. This debate underscores a fundamental tension between the need for scientific rigor and the desire to highlight humanity's profound and lasting impact on the planet.
❓ Según el pasaje, ¿cuál es la razón principal por la que algunos geólogos se oponen a definir formalmente el Antropoceno como una nueva época geológica?
A. Los marcadores de la actividad humana son demasiado sutiles para ser detectados en las capas de roca.
B. Los marcadores propuestos no son globalmente consistentes y pueden no perdurar durante largos períodos geológicos.
C. El concepto solo ha sido promovido por ambientalistas, no por geólogos.
D. El impacto humano en la Tierra es demasiado reciente para ser estudiado científicamente.
✅ 正确答案
The proposed markers are not globally consistent and may not endure over long geological periods.
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