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Sample Type is Igneous › Pyroclastic › Pyroclastic Deposits

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IGSN Sample Type Notes Location Number Thin Sections Storage Location
GRD00BAS0 Ignimbrite TSB. Rhyolitic Ignimbrite. Colorado 0 Camp Elliott
GRD00BBS0 Ignimbrite TSB. Rhyolitic ignimbrite. Colorado 0 Camp Elliott
GRD00BCS0 Ignimbrite TSB. Rhyolitic ignimbrite. Colorado 0 Camp Elliott
GRD00BGS0 Welded Ignimbrite TSB only Colorado 0 Camp Elliott
GRD00BHS0 Welded Ignimbrite TSB only Colorado 0 Ritter 154, 19 J
GRD00BIS0 Welded Ignimbrite TSB only Colorado 0 Camp Elliott
GRD00BJS0 Welded Ignimbrite TSB only Colorado 0 Camp Elliott
GRD00DTS0 Welded Ignimbrite Tuff with lithic clasts. Nice flow texture. 0 Ritter 154, 15 L
GRD00FYS0 Ignimbrite Original description: Rhyolite tuff (lithics-pumice-Q). Idaho 0 Ritter 154, 19 J
GRD00FZS0 Ignimbrite rhyolite tuff (lithics-pumice-Q) 0 Camp Elliott
GRD00GAS0 Ignimbrite Phonolite tuff. Associated with large ore bodies at Cripple Creek. Thin section in Wards black Micro Slides box in Ritter 154. Colorado 1 Camp Elliott
GRD00GDS0 Ignimbrite Wall Mtn tuff. Also known as Castle Rock rhyolite. Rhyolite (San-Pla-Bi-Mt-Q) tuff. Colorado 1 Ritter 154, 15 K
GRD00GES0 Ignimbrite Rhyolite tuff (prominent smoky Q-San-Olig-Ga-Topaz) Colorado 1 Ritter 154, 15 K
GRD00IGS0 Ignimbrite Rhyolite tuff (Q euhedral-Ks-pumice) 0 Camp Elliott
GRD00IHS0 Ignimbrite rhyolite tuff (Q-Plag-Bi/Hb reddened) 0 Camp Elliott
GRD00IKS0 Ignimbrite rhyolite tuff (white and green; pumice-Ks) 0 Camp Elliott
GRD00JBS0 Ignimbrite White unwelded Bishop Tuff with brown pumice fragments. Top of section at middle hydro plant California 0 Ritter 154, 15 K
GRD00JCS0 Welded Ignimbrite Pink groundmass with purple pumice, moderately welded Bishop Tuff. 40m below top of section at middle hydro plant California 0 Ritter 154, 15 L
GRD00JCS1 Welded Ignimbrite Pink groundmass with purple pumice, moderately welded Bishop Tuff. 40m below top of section at middle hydro plant California 0 Ritter 154, 19 J
GRD00JDS0 Welded Ignimbrite Pink with grey fiamme, densely welded Bishop Tuff. 100 m below top of section at middle hydro plant. California 0 Ritter 154, 15 L
GRD00JDS1 Welded Ignimbrite Pink with grey fiamme, densely welded Bishop Tuff. 100 m below top of section at middle hydro plant. California 0 Ritter 154, 19 J
GRD00JDS2 Welded Ignimbrite Pink with grey fiamme, densely welded Bishop Tuff. 100 m below top of section at middle hydro plant. California 0 Ritter 154, 19 J
GRD00JES0 Welded Ignimbrite Purple, densely welded Bishop Tuff. 150m below top of section at middle hydro plant California 0 Ritter 154, 15 L
GRD00JFS0 Welded Ignimbrite Grey, densely welded Bishop Tuff. Base of tuff. Note remelting of flattened pumice. California 0 Ritter 154, 19 J
GRD00JOS0 Ignimbrite Large pumice within tuff, 100 feet below top. Missing sample California 1 Ritter 154, 15 K
GRD01P3S0 Ignimbrite Bishop Tuff overlying Sherwin Till. Original description: Bishop tuff, crudely bedded pumice fragments tuff. California 0
GRD022BS0 Ignimbrite Yellowish cobble (~5 cm in diameter) with a small patch of Fe-Mn crust. Rind of pumice and lithic fragments ranging in size from 1 mm to 2 cm; billet pieces. Original label: 23 November, 1980. Pacific Ocean 1 Ritter 154, 37 B
GRD02OCS0 Welded Ignimbrite Bishop Tuff. Dark brown fiamme mantled by black rims with rounded quartz crystals in pink groundmass. Quartz and garnet-rich xenolith. California 2 Ritter 154, 3 E
GRD02ODS0 Welded Ignimbrite Bishop Tuff. Dark brown fiamme mantled by black rims with rounded quartz crystals in pink groundmass. Hypocrystalline. California 5 Ritter 154, 3 F
GRD02PVS0 Ignimbrite Four billets of Bishop Tuff. The groundmass is pink whereas the fiamme are purple. Quartz crystals are visible. Original label: Bishop Tuff. California 4 Ritter 154, 3 E