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A geochemical and isotopic (Nd-Pb) comparison of volcanic rocks erupted during the last 3,550 yrs. B.P. of interplinian activity of Somma-Vesuvius volcano, southern Italy [microform] / R. Somma, R.A. Ayuso, B. De Vivo (Open file report ; 99-365)

A geochemical and isotopic (Nd-Pb) comparison of volcanic rocks erupted during the last 3,550 yrs. B.P. of interplinian activity of Somma-Vesuvius volcano, southern Italy [microform] / R. Somma, R.A. Ayuso, B. De Vivo (Open file report ; 99-365)
マイクロ図書
1999<YCA-I 19.76:99-365>
国立国会図書館
  • 著者標目Somma, Renato Ayuso, Robert A De Vivo, B. (Benedetto) Geolo...

White mica geochemistry of the Catheart Mountain porphyry copper deposit, Maine / by Robert A. Ayuso (U.S. Geological Survey bulletin ; 1803)

White mica geochemistry of the Catheart Mountain porphyry copper deposit, Maine / by Robert A. Ayuso (U.S. Geological Survey bulletin ; 1803)
マイクロ図書
1987<YCA-I 19.3:1803>
国立国会図書館
  • 著者標目Ayuso, Robert A Geological Survey (U.S.)

Field relations, crystallization, and petrology of reversely zoned granitic plutons in the Bottle Lake Complex, Maine / by Robert A. Ayuso (U.S. Geological Survey professional paper ; 1320)

Field relations, crystallization, and petrology of reversely zoned granitic plutons in the Bottle Lake Complex, Maine / by Robert A. Ayuso (U.S. Geological Survey professional paper ; 1320)
マイクロ図書
1984<YCA-I 19.16:1320>
国立国会図書館
  • 著者標目Ayuso, Robert A Geological Survey (U.S.)

Significance of tourmaline-rich rocks in the Grenville Complex of St. Lawrence County, New York : a study of tourmaline compositions and their possible use as indices of mineralization / by C. Ervin Brown and Robert A. Ayuso (Contributions to the geology of mineral deposits) (U.S. Geological Survey bulletin ; 1626)

Significance of tourmaline-rich rocks in the Grenville Complex of St. Lawrence County, New York : a study of tourmaline compositions and their possible use as indices of mineralization / by C. Ervin Brown and Robert A. Ayuso (Contributions to the geology of mineral deposits) (U.S. Geological Survey bulletin ; 1626)
マイクロ図書
1985<YCA-I 19.3:1626-C>
国立国会図書館
  • 著者標目Brown, C. Ervin (Clarence Ervin) , 1925- Ayuso, Robert A Geological Survey (U.S.)

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