Into the forbidden zone
Abstract
Very low temperatures at high pressures have long been believed to constitute a not realized in Earth. However, recent studies of ultrahigh pressure (UHP) terranes indicate that these rocks have experienced such forbidden zone conditions. Liou et al. discuss the implications of these observations for plate tectonics.
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The low-dT/dP limit of metamorphism on Earth is ~150 °C/GPa, with geothermal gradients below this value defining the 'Forbidden Zone'.
“The low-dT/dP limit of metamorphism on Earth is ~150 °C/GPa, with geothermal gradients below this value defining the 'Forbidden Zone'”
From Secular change and the onset of plate tectonics on Earth (2020) · cites this paper as Liou et al., 2000
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References 25 · Cited by 137
- Authors
- Liou, J. G., Hacker, B. R., & Zhang, R. Y.
- Affiliations
- Stanford University (US)
- University of California, Santa Barbara (US)
- Venue
- Science
- Published
- 2000-02-18
- Volume
- 287
- Issue
- 5456
- Pages
- 1215-1216
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1512836224
- Cited by
- 137
- References
- 25
- Citations by year
- 2026: 3 · 2025: 6 · 2024: 3 · 2023: 3 · 2022: 3 · 2021: 5 · 2020: 2 · 2019: 1 · 2018: 9 · 2017: 3 · 2016: 4 · 2015: 3 · 2014: 4 · 2013: 4 · 2012: 1
- FWCI
- 7.47
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Science (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Geophysics › Geological and Geochemical Analysis
- Physical Sciences › Earth and Planetary Sciences › Geophysics › High-pressure geophysics and materials
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
- Keywords
- ultrahigh-pressure metamorphism, forbidden zone, high pressure, low temperature, plate tectonics, Earth's interior
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