Peering into the Crystal Fabric of Rocks

Greg Hirth , Oceanus; Woods Hole Oceanographic Institution

This Oceanus article describes the work of Greg Hirth, a geologist studying rock deformation and crystallography. It discusses how rocks deform as a function of pressure and heat (called rheology) and includes a short section about the possibility of microbial life in the heat and pressure-induced cracks between crystals. Hyperlinks to related articles are contained within the text of the article. The article also features a list of related links and color images of rocks and minerals under a microscope.

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Subject: Geoscience:Geology:Structural Geology:Microstructures, Deformation Mechanisms, Fabrics, Geoscience:Geology:Geophysics:Mineral Physics, Biology:Microbiology, Ecology:Habitats:Within Rock, Marine
Resource Type: Scientific Resources:Overview/Reference Work
Grade Level: Graduate/Professional, High School (9-12), College Upper (15-16), College Lower (13-14)
Extreme Environments: Anoxic, Extremely Hot, High Pressure
Ocean Environments: Deep Sea Floor/Abyssal:Hydrothermal Systems, Deep Sea Floor/Abyssal
Topics: Solid Earth:Structural Geology:Microstructures, Deformation Mechanisms, Fabrics, Biosphere:Microbiology, Ecology:Habitats:Within Rock, Marine
Theme: Teach the Earth:Course Topics:Structural Geology, Ecology, GeophysicsKeyword: endolith