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Sample Type is Igneous

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IGSN Sample Type Notes Location Number Thin Sections Storage Location
GRD045HS0 Gabbro Gabbro with acicular pyroxene, about 10 feet lower than specimen 12, transition into gabbro zone. Canada 2 Ritter 154, 29 K
GRD045IS0 Gabbro Gabbro Canada 0 Ritter 154, 29 K
GRD045JS0 Peridotite Peridotite at base of Freds Flow Canada 0 Ritter 154, 29 K
GRD045JS1 Peridotite Peridotite at base of Freds Flow Canada 0 Ritter 154, 29 K
GRD045KS0 Ultramafic Extrusive Iron-rich tholeiitic flow just below Freds Flow. Variolitic zone near base (?) of flow. Evidence of liquid immiscibility. Canada 0 Ritter 154, 29 K
GRD045LS0 Ultramafic Extrusive Hyaloclastite top of Theos flow. Illustrated in kodachrome slide set. Canada 0 Ritter 154, 29 K
GRD045LS1 Ultramafic Extrusive Hyaloclastite top of Theos flow. Illustrated in kodachrome slide set. Canada 0 Ritter 154, 29 K
GRD045MS0 Pyroxenite Pyroxenite, fine grained, near top of flow and below UMF-17 Canada 0 Ritter 154, 29 K
GRD045NS0 Gabbro Relatively fine grained gabbro with pyrite Canada 0 Ritter 154, 29 K
GRD045NS1 Gabbro Relatively fine grained gabbro with pyrite Canada 0 Ritter 154, 29 K
GRD045OS0 Pyroxenite Pyroxenite near base of Freds Flow Canada 0 Ritter 154, 29 K
GRD045OS1 Pyroxenite Pyroxenite near base of Freds Flow Canada 0 Ritter 154, 29 K
GRD045PS0 Peridotite Serpentinized peridotite base of Theos Flow. There is not much peridotite exposed. It is spotty. Some specimens may be transition from pyroxenite. Canada 0 Ritter 154, 29 K
GRD045PS1 Peridotite Serpentinized peridotite base of Theos Flow. There is not much peridotite exposed. It is spotty. Some specimens may be transition from pyroxenite. Canada 0 Ritter 154, 29 K
GRD045QS0 Ultramafic Extrusive Pyroxenitic komatiite flow above Theos Flow. Possibly 200 to 300 feet above top of Theos Flow. Canada 0 Ritter 154, 29 K
GRD045QS1 Ultramafic Extrusive Pyroxenitic komatiite flow above Theos Flow. Possibly 200 to 300 feet above top of Theos Flow. Canada 0 Ritter 154, 29 K
GRD045RS0 Ultramafic Extrusive Basaltic komatiite flow above 22. Possibly 100 to 150 feet above UMF-22. Bulbous or tubular features on outcrop thought to represent lava tubes. Specimen collected from freshest most massive material from a so-called lava tube. Illustrated in kodachrome slide set. Canada 0 Ritter 154, 29 K
GRD045SS0 Ultramafic Extrusive Central part of iron-rich tholeiitic flow, about 20 feet above variolitic zone. Canada 0 Ritter 154, 29 K
GRD045SS1 Ultramafic Extrusive Central part of iron-rich tholeiitic flow, about 20 feet above variolitic zone. Canada 0 Ritter 154, 29 K
GRD045TS0 Ankaramite Vesicular ankaramite. Modes: 10 pyroxene, 5 olivine. Samoa 0 Ritter 154, 16 J
GRD045TS1 Ankaramite Vesicular ankaramite. Modes: 10 pyroxene, 5 olivine. Samoa 0 Ritter 154, 16 J
GRD045TS2 Ankaramite Vesicular ankaramite. Modes: 10 pyroxene, 5 olivine. Samoa 0 Ritter 154, 16 J
GRD045US0 Felsic Intrusive Hydrated Monzosyenite. Granite dike in Sybille monzosyenite dike, pinkish hue due to olivine being converted to hornblende. Wyoming 0 Ritter 154, 15 E
GRD045US1 Felsic Intrusive Hydrated Monzosyenite. Granite dike in Sybille monzosyenite dike, pinkish hue due to olivine being converted to hornblende. Wyoming 0 Ritter 154, 15 E
GRD045VS0 Monzonite Quartz Monzonite California 3 Ritter 154, 15 E
GRD045WS0 Granodiorite Mafic enclave and host granodiorite California 4 Ritter 154, 15 O
GRD045XS0 Intermediate Intrusive Summit hybrid rock California 2 Ritter 154, 15 N
GRD0460S0 Granodiorite California 2 Ritter 154, 15 N
GRD0462S0 Granodiorite Hybrid Rock California 2 Ritter 154, 15 N
GRD0465S0 Basalt Yakima Basalt. Late Miocene-Early Pliocene Washington 2 Ritter 154, 3 F