USGS professional paper · 1952 · 23 citations · 18 references
Natural SciencesEarth SciencesGeologyGeochemistryGeomorphologyMineralogyIgneous GeochemistryIgneous MineralsPlutonic RocksSedimentary EnvironmentsSedimentary RocksSilicate MineralsClassification Of Mineral ResourcesIgneous Mineral ClassificationIgneous Mineral GeochemistryIgneous MineralogyIgneous Rock ClassificationIgneous Rock CompositionIgneous Silicate Minerals
Relation of igneous to sedimentary rocks__________ 57 Relation of igneous rocks to one another.__________ 58
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The Triassic cephalopod genera of America
Alpheus Hyatt, Joshua P. Smith · USGS professional paper · 1905 · 90 citations · Full text
Lower Cretaceous Rocky Mountain nonmarine microfossils
Raymond E. Peck · Journal of Paleontology · 1941 · 64 citations