Opening book details…
Can I read The Oxygenation of the Atmosphere and Oceans on EtoBox?
The Oxygenation of the Atmosphere and Oceans by Heinrich D Holland is a science book available to read on EtoBox.
What is The Oxygenation of the Atmosphere and Oceans about?
The last 3.85 Gyr of Earth history have been divided into five stages. During stage 1 (3.85–2.45 Gyr ago (Ga)) the atmosphere was largely or entirely anoxic, as were the oceans, with the possible exception of oxygen oases in the shallow oceans. During stage 2 (2.45–1.85 Ga) atmospheric oxygen levels rose to values estimated to have been between 0.02 and 0.04 atm. The shallow oceans became mildly oxygenated, while the deep oceans continued anoxic. Stage 3 (1.85–0.85 Ga) was apparently rather ‘boring’. Atmospheric oxygen levels did not change significantly. Most of the surface oceans were mildly oxygenated, as were the deep oceans. Stage 4 (0.85–0.54 Ga) saw a rise in atmospheric oxygen to values not much less than 0.2 atm. The shallow oceans followed suit, but the deep oceans were anoxic, at least during the intense Neoproterozoic ice ages. Atmospheric oxygen levels during stage 5 (0.54 Ga–present) probably rose to a maximum value of__ca__0.3 atm during the Carboniferous before returning to its present value. The shallow oceans were oxygenated, while the oxygenation of the deep oceans fluctuated considerably, perhaps on rather geologically short time-scales.
Who reads The Oxygenation of the Atmosphere and Oceans?
It is typically read by self-directed learners exploring a subject in depth.
Common subject areas: history, science, philosophy, social sciences.
- Author
- Heinrich D Holland
- Publisher
- IRL Press at Oxford University Press
- Published
- 2006
- Language
- EN
- ISBN
- 9780191017339
- Category
- science
- Subjects
- Science, Philosophy, Chemistry
- Rating
- 3.89 / 5 (40 ratings)
- Updated
- 2026-03-14