Deep time is a term introduced and applied by John McPhee to the concept of geologic time in his book Basin and Range (1981), parts of which originally appeared in The New Yorker magazine. [1]

2024年3月7日 · Thinking in deep time means that when we talk about how different climate will be in 200 years, it doesn't seem like that long at all. It also drives the point home that humans and human civilization in particular (maybe 0.001% of Earth's history) is a blip on the timeline.

2018年8月3日 · "Deep time" refers to the time scale of geologic events, which is vastly, almost unimaginably greater than the time scale of human lives and human plans. It is one of geology's great gifts to the world's set of important ideas.

2016年10月31日 · Deep time represents a certain displacement of the human and the divine from the story of creation. Yet in the Anthropocene, ironically we humans have become that sublime force, the agents of...

The concept of deep time helps us understand processes that can last billions of years. Erosion takes eons to shape landscapes. Deep time encourages us to think on a scale large enough to imagine the forces at work.

Deep Time starts at the very beginning—4.6-billion-years ago. But it ends in the future. Along the way, visitors will travel through ancient ecosystems, experience the evolution of plant and animal life, and get up close with some 700 specimens, including an Alaskan palm tree, early insects, reptiles and mammals, and dramatically posed giants like Tyrannosaurus rex, Diplodocus and …

But what is deep time and when did it start? Deep time was a phrase introduced by the writer and journalist John McPhee in his book Basin and Range (1981), so in a sense it was a journalistic invention that offered a metaphor for the obscurity and unidirectional nature of geological time.

2018年1月3日 · The concept of ‘Deep Time’ is synonymous with geologic time, a vast and somewhat mysterious period, which chronicles the life age of the Earth. The geologic time scale is the calendar of this Deep Time, by which scientists have dated and placed in proper context the major events of the Earth’s history.

As scientists, we work with the observable part of the world, and we have no way to detect a perfect fake, so we treat this as an old world. The geologic record speaks of “deep time,” billions of years, Shakespeare’s “Dark backward and abysm of time" (from The Tempest).

2023年12月26日 · Synopsis: When most humans think of time, we tend to consider minutes, hours, days and years as represented on clocks and calendars. But when earth scientists think of time, they have to think on the scale of millions to billions of years, and their calendar is the geologic time scale.