Igneous petrology

https://www.wikidata.org/wiki/Q16000119

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Parent
Biology 36M papers	Geology 10.4M papers	Paleontology 5.5M papers	Seismology 758k papers
Tectonics 462k papers	Volcanism 31.9k papers	Engineering geology 7,986 papers
Current
Igneous petrology 2,203 papers
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History