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58 Geosciences
2
Algae
2
Correlations
2
Fossils
2
Paleontology
2
Palynology
2
Progress Report
2
Rift Zones
2
Stratigraphy
2
Usa
2
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1
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1
Geologic Structures
1
Geology
1
Geosciences
1
Multidisciplinary
1
North America
1
Plants 580000* -- Geosciences
1
Tectonics
1
Tectonics 580000
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University of North Texas: UNT Digital Library
2
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
1
Harvard University: DASH - Digital Access to Scholarship at Harvard
1
NASA Technical Reports Server (NTRS)
1
ScholarsArchive@OSU (Oregon State University)
1
Springer Nature (via Crossref)
1
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