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\nWhen a Billion Years Disappeared\n

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\nIn some places, the rocks below the Great Unconformity are about 1.2 billion years older than those above it. This missing chapter in Earth’s history might be linked to a fracturing supercontinent, out-of-control glaciers, and maybe the...\nIn some places, the rocks below the Great Unconformity are about 1.2 billion years older than those above it. This missing chapter in Earth’s history might be linked to a fracturing supercontinent, out-of-control glaciers, and maybe the diversification of life itself. \n
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Resource Details

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Educator Rating
Not yet Rated
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Media Length
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11:09
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Grade
12th - Higher Ed
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nPBS Eons\n\n
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Date
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2020
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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dinosaurs, fossils, erosion, rock layers, isotopes, time, paleontology, john green, geology, sediment, glaciation, weathering
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Additional Tags

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dinos, paleo, scishow, eons, pbs, pbs digital studios, hank green, complexly, natural history, grand canyon, great unconformity, earth history, unconformity, cambrian, precambrian, proterozoic, deposition, stratum, strata, rock sequence, tapeats formation, vishnu schist, grand canyon supergroup, phanerozoic, supercontinents, rodinia, snowball earth, zircon, continental crust, age difference, geological record, radiometric dating, zircon crystals, hafnium isotopes, weathering process, late proterozoic, snowball, layers, rock, life, earth, process, crust, material, history, tilted, layer, breakup, study, researchers, laid
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Best For: Explaining a topic
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