Subject
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Ophiolite
1
Optics
1
Ore genesis
1
Orogeny
2
Paleozoic
1
Permian
1
Petroleum industry and trade
1
Petrology
1
Plants
1
Plastics
1
Plate boundaries
1
Plywood
1
Quartz
1
Reefs
1
Refractories
1
Regulations
1
Remote sensing
1
Research
1
Research and development
1
Rifts (Geology)
1
Roll type deposits
1
Rubbers
1
Salt deposits
1
Satellite surveys
1
Silica
2
Silica gel
1
Slag
1
Softwoods
1
Statistics
1
Stratiform deposits
1
Stratigraphy
2
Structural geology
2
Sulfides
1
Sulfur
1
Sustainable development
1
Sustainable forestry
1
Symposia
1
Technological innovations
2
Tectonics
3
Temperate zones
1
Thermal waters
1
Trade
1
Trees
3
Triassic
1
Ultramafics
1
Underground storage
1
Ungulates
1
Uranium minerals
1
Uranium ores
1
Wood products
1
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