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Sample Type is Igneous › Volcanic › Mafic Extrusive

311 records | Download
IGSN Sample Type Notes Location Number Thin Sections Storage Location
GRD02WCS0 Basalt Plagioclase bearing California 1 Ritter 154, 29 C
GRD02WES0 Basalt Plagioclase and Olivine phenocryst bearing basalt with plag rich groundmass containing fine oxides California 1 Ritter 154, 29 C
GRD02WFS0 Mafic Extrusive GPS 011 California 1 Ritter 154, 29 C
GRD02XAS0 Basalt Basalt with plagioclase phenocrysts California 0 Ritter 154, 16 G
GRD02XGS0 Basalt Sonora Pass. Plag-phyric California 1 Ritter 154, 29 C
GRD02XQS0 Basalt Basalt with Dunite and Basement inclusions Antarctica 0 Ritter 154, 16 H
GRD02XRS0 Basalt Dunite and Pyroxene xenocryst bearing Basalt Antarctica 0 Ritter 154, 16 H
GRD03YYS0 Mafic Extrusive Chemically weathered, vesicular rock with lithic fragments and oxidized phenocrysts (olivine?). Unidentified white/gray cementation, likely carbonate. Large piece shows preservation of ripples on one side. Hawaii 0 Ritter 154, 20 E
GRD03ZDS0 Mafic Extrusive Altered volcanic rock Mexico 0 Ritter 154, 16 G
GRD03ZES0 Basalt Sub-glacial vesicular basalt, neovolcanic zone Iceland 0 Ritter 154, 16 H
GRD03ZHS0 Basalt Plagioclase bearing basalt Greece 0 Ritter 154, 20 E
GRD03ZIS0 Basalt Cavity filling in basalt Nevada 0 Ritter 154, 16 R
GRD041TS0 Mafic Extrusive Spilite Puerto Rico 0 Ritter 154, 29 L
GRD0421S0 Basalt Robles fm. Puerto Rico 0 Ritter 154, 29 L
GRD0422S0 Basalt Pillow Basalt. Pozas fm. Puerto Rico 0 Ritter 154, 29 L
GRD0427S0 Mafic Extrusive Lapa fm., Tetas Lava Puerto Rico 0 Ritter 154, 29 L
GRD0428S0 Basalt Lapa Lava Puerto Rico 0 Ritter 154, 29 L
GRD042BS0 Basalt Basalt Breccia(?) Puerto Rico 0 Ritter 154, 29 L
GRD042CS0 Basalt Porphyritic basalt Puerto Rico 0 Ritter 154, 29 L
GRD042RS0 Basalt olivine-phyric basalt, 1960 Hawaii flow Hawaii 0 Ritter 154, 20 F
GRD042XS0 Ankaramite ankaramite with 30% pyroxene, 15% olivine Raratonga, Cook Islands 0 Ritter 154, 16 J
GRD0437S0 Ankaramite Large pyroxene and olivine bearing sample Tahiti Iti, Vaitepiha Valley, French Polynesia, North side of Island 0 Ritter 154, 16 J
GRD0437S1 Ankaramite Large pyroxene and olivine bearing sample Tahiti Iti, Vaitepiha Valley, French Polynesia, North side of Island 0 Ritter 154, 20 G
GRD043BS0 Picrite Rounded boulder of basaltic olivine porphyry, broken into multiple pieces France 0 Ritter 154, 16 J
GRD043BS1 Picrite Rounded boulder of basaltic olivine porphyry, broken into multiple pieces France 0 Ritter 154, 20 G
GRD043JS0 Ankaramite Hawaii 2 Ritter 154, 16 H
GRD043KS0 Ankaramite No hand sample, two thin sections stored in thin section only storage in RH 154 Hawaii 2 Ritter 154
GRD043LS0 Ankaramite No hand sample, three thin sections stored in Thin Section Only storage in RH 154 American Samoa 3 Ritter 154
GRD044AS0 Basalt vesicular, sparsely Px-phyric basalt. Inokashira flow 2, part of 15-6 ka Fujinomiya stage Japan 0 Ritter 154, 29 G
GRD044BS0 Basalt vesicular, Plag-phyric basalt. Asagiri flow, part of 15-6 ka Fujinomiya stage Japan 0 Ritter 154, 29 G