|
Text Description: Rewoked, appears at the 19 m level; the white, crystal-rich tephra is preserved in small loess blocks that collapsed into a gully, which was later filled with loess. Occurs as pods and in some pods, is segregated into two vitric pure white and crystal-rich parts with sharp contacts between them. Tephra and surrounding silt contacts are sharp and occasionally sheared a little and very irregular. Maximum thickness is 1 cm and maximum pod size is 9 by 1 cm. References: ![]() ![]() ![]() |
StationID | Latitude | Longitude | Geologist | DateVisited | Age Info | Volcano | Eruption | Location Description | Text Description | Sample ID | Sample Type 1 | Sample Type 2 | Final Unit | Material | Coeff | SiO2 | TiO2 | Al2O3 | FeOT | MnO | MgO | CaO | Na2O | K2O | P2O5 | Total-majors | REF majors | METH majors | Fe2O3/Fe203T orig | FeO/FeOT orig | Volatiles csv | METH volatiles | Cs | Rb | Ba | Sr | La | Ce | Pr | Nd | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Y | Zr | Nb | Hf | Ta | Pb | Th | U | Sc | V | Cr | Fe | Co | Ni | Cu | Zn | Ga | Mo | As | Na | K | Ref trace1 | METH trace1 | Rb | Ba | Sr | La | Ce | Nd | Sm | Eu | Gd | Dy | Er | Yb | Lu | Y | Zr | Nb | Pb | Th | U | Sc | Ti | V | Cr | Ni | Cu | Zn | Ga | Ref trace2 | METH trace2 | Light csv | Halogen csv | other major csv | other lile csv | other ree csv | other hfse csv | other hpe csv | other tm csv | other misc csv | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gold_Hill_II | 64.9 | -147.89997 | Preece, S. J. | < 2020000 ± 140000 stratigraphy; 996; Weighted mean average of two dates obtained on sample UT497, which is strategraphically below this sample (therefore this sample is younger). See Preece and others (1999) for methods. | Trench dug down to the cliff face on the north side of the Gold Hill mining cut, Fairbanks, Alaska; located approximately 400 m to the northeast of station Preece_1999_Gold_Hill_I. Location imprecisely georeferenced from Figure 4 in Preece et al. (1999). | Rewoked, appears at the 19 m level; the white, crystal-rich tephra is preserved in small loess blocks that collapsed into a gully, which was later filled with loess. Occurs as pods and in some pods, is segregated into two vitric pure white and crystal-rich parts with sharp contacts between them. Tephra and surrounding silt contacts are sharp and occasionally sheared a little and very irregular. Maximum thickness is 1 cm and maximum pod size is 9 by 1 cm. | UT889 | Tephra Fall | Cumulate | Glass | 77.45 | 0.24 | 13.48 | 0.89 | Reported analytical value of zero. Reported standard deviation value of zero. 0 | Reported analytical value of zero. Reported standard deviation value of zero. 0 | 1.54 | 3.87 | 2.44 | 92.54 | 56 | EMP | 0.89 | Cl=0.24 | EMP | 1.03 | 54 | 1403 | 655 | 21.82 | 41.4 | 13.5 | 2.5 | 0.67 | 0.19 | 0.79 | 0.13 | 2.8 | 0.5 | 5.82 | 1.85 | 1.47 | 2.81 | 47 | 56 | INAA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Gold_Hill_II | 64.9 | -147.89997 | Preece, S. J. | < 2020000 ± 140000 stratigraphy; 996; Weighted mean average of two dates obtained on sample UT497, which is strategraphically below this sample (therefore this sample is younger). See Preece and others (1999) for methods. | Trench dug down to the cliff face on the north side of the Gold Hill mining cut, Fairbanks, Alaska; located approximately 400 m to the northeast of station Preece_1999_Gold_Hill_I. Location imprecisely georeferenced from Figure 4 in Preece et al. (1999). | Rewoked, appears at the 19 m level; the white, crystal-rich tephra is preserved in small loess blocks that collapsed into a gully, which was later filled with loess. Occurs as pods and in some pods, is segregated into two vitric pure white and crystal-rich parts with sharp contacts between them. Tephra and surrounding silt contacts are sharp and occasionally sheared a little and very irregular. Maximum thickness is 1 cm and maximum pod size is 9 by 1 cm. | UT889 | Tephra Fall | Cumulate | Glass | 76.6 | 0.15 | 13.64 | 1.03 | 0.03 | 0.3 | 1.63 | 3.91 | 2.47 | 4792 | EMP | 1.03 | Cl=0.24; H2O=5.29 | EMP |
This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137
Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.