Sample Type is Igneous › Volcanic › Intermediate Extrusive › Andesite
97 records | DownloadIGSN | Sample Type | Notes | Location | Number Thin Sections | Storage Location |
---|---|---|---|---|---|
GRD000HS0 | Andesite | Amygduloidal basaltic andesite | California | 0 | Camp Elliott |
GRD000VS0 | Andesite | Porphyritic. White sanidine in dark grey matrix. | California | 1 | Ritter 154, 16 A |
GRD0012S0 | Andesite | Plagioclase and hornblende in glassy matrix | California | 1 | Ritter 154, 16 B |
GRD0013S0 | Andesite | California | 1 | Ritter 154, 16 A | |
GRD0040S0 | Andesite | Vesicular | Tristan da Cunha: Stony Beach Cinder Cone, elev. 0 (penultimate flow) | 0 | Ritter 154, 19 H |
GRD0041S0 | Andesite | Tristan da Cunha: 1961 eruption, seaward edge of flow, elev 10. 100 yards from extreme W. of flow | 0 | Ritter 154, 16 A | |
GRD0042S0 | Andesite | Tristan da Cunha: 1961 eruption, seaward edge of flow, elev 10, from outer part of flow | 0 | Ritter 154, 19 H | |
GRD004VS0 | Andesite | Old Somma Lava, 52-53% SiO-2, basic plag | Japan | 0 | Ritter 154, 16 A |
GRD004WS0 | Andesite | Minamikako lava of Yotei (63.4% SiO2) | Japan | 0 | Camp Elliott |
GRD004YS0 | Andesite | Japan | 0 | Ritter 154, 16 A | |
GRD004ZS0 | Andesite | Old Somma Lava | Japan | 0 | Ritter 154, 16 A |
GRD0057S0 | Andesite | Au-Hy dacitic andesite, aphyric. Young Somma lava, 67% SiO2 | Japan | 0 | Ritter 154, 19 H |
GRD0058S0 | Andesite | Hy-Pig, old Somma lava | Japan | 0 | Ritter 154, 16 A |
GRD0059S0 | Andesite | Pigeonite-andesite dike | Japan | 0 | Ritter 154, 16 A |
GRD005AS0 | Andesite | andesite of nuee ardente block, Kami-yama | Japan | 0 | Ritter 154, 16 A |
GRD005BS0 | Andesite | Old Somma rim, south end of the lake. Au-Hy-Pig | Japan | 0 | Ritter 154, 19 H |
GRD005DS0 | Andesite | Au-Hy, from central cone, some samples contain remelted Na plag and crystobalite | Japan | 0 | Ritter 154, 16 A |
GRD005GS0 | Andesite | aphryic lava, old Somma lavas | Japan | 0 | Ritter 154, 19 H |
GRD005HS0 | Andesite | pyroxene (pig?) andesite; old Somma lavas | Japan | 0 | Ritter 154, 16 A |
GRD005IS0 | Andesite | pyroxene (pig?) andesite; old Somomo lavas, Hakone volcano | Japan | 0 | Ritter 154, 16 A |
GRD005JS0 | Andesite | (pig?) | Japan | 0 | Ritter 154, 19 H |
GRD005KS0 | Andesite | 1783 Agatsama flow; Japanese volcanic suite, Asama Volcano | Japan | 0 | |
GRD005LS0 | Andesite | 1783 Oni-oahidashi flow, porous andesite vitrophyre | Japan | 0 | Ritter 154, 16 A |
GRD005MS0 | Andesite | Kambara Nuee Ardente pyroclastic flow. Vesicular interior of bread crust block | Japan | 0 | Ritter 154, 19 L |
GRD005NS0 | Andesite | Japan | 0 | Ritter 154, 19 H | |
GRD006LS0 | Andesite | pyroxene, plag, hornblende phenocrysts | California | 0 | Ritter 154, 16 A |
GRD006QS0 | Andesite | Mt. Pelee 1902 Avalanche deposit. Could be block from block and ash flow. Original description: Hypersthene, vitrophyre tuff. | Mt. Pelee, Martinique, Antilles | 0 | Ritter 154, 16 A |
GRD006RS0 | Andesite | Mt. Pelee 1902 dome | Mt. Pelee, Martinique, Antilles | 0 | Ritter 154, 16 A |
GRD006SS0 | Andesite | andesite with inclusions, from Mt. Pelee 1902 dome | Mt. Pelee, Martinique, Antilles | 0 | Ritter 154, 16 B |
GRD006TS0 | Andesite | 1930 dome | Mt. Pelee, Martinique, Antilles | 0 | Ritter 154, 16 B |