-
505.
Rocks analysis
Subjects
Analytical geochemistry
-
506.
Rodents fossil
Subjects
Fossil mammals
-
507.
Roques ferruginoses
Subjects
Sedimentary rocks
-
508.
Rubies
Subjects
CorundumPrecious stones
-
509.
Runoff
Subjects
Water
-
510.
Rural land use
Subjects
Soils
-
511.
Sal tectonics
Subjects
Geodynamics
-
512.
Saline waters
Subjects
-
513.
Salines
Subjects
Mines and mineral resources
-
514.
Salt
Subjects
Marine resources
-
515.
Salt deposits
Subjects
Mineral deposits
-
516.
Salts
Subjects
Chemistry
-
517.
Saltwater encroachment
Subjects
Saline waters
-
518.
Sand
Subjects
Aggregates (Building materials)Sediments (Geology)
-
519.
Sand dunes
Subjects
Natural areasBeachesReclamation of landLandforms
-
520.
Sandstones
Subjects
Sedimentary rocks
-
521.
Sandworts
Subjects
Caryophyllaceae
-
522.
Sapphires
Subjects
CorundumPrecious stones
-
523.
Scheelite
Subjects
Tungstate minerals
-
524.
Schists
Subjects
Sedimentary rocksMetamorphic rocks
-
525.
Scleractinia fossil
Subjects
Corals fossil
-
526.
Sea level
Subjects
Oceanography
-
527.
Seas
Subjects
Natural areas
-
528.
Seashore
Subjects
Landforms
Last updated dated: 05/07/2025