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Text Description: Stratigraphic Unit No. 7. Interpreted deposit type: tephra fall (possibly reworked) and paleosol complex. Thickness: 12 cm. Grain size: medium lapilli (5-8 mm) to coarse ash. Bedding: massive lapilli base (3.5 cm) grading upward into coarse ash soil with pockets of normally graded mafic fine lapilli scoria. Sorting: base-well sorted; pockets of mafic scoria-well sorted. Juvenile clast type: black (dense, scoria-like clasts). Remarks: mafic scoria from random pockets. Munsell color-wet: 5 YR 2/2. Munsell color-dry: 5 YR 5/2. Grain shape: angular. Age: >3650+/-150 yr. B.P. 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 | |
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01KW-CP4 | 61.19965 | -152.12684 | Wallace, K. L. | 2001-08-10 | > 3650 ± 150 stratigraphy; 3405; | Spurr | Chakachatna River Bluff, SE of Crater Peak | Stratigraphic Unit No. 7. Interpreted deposit type: tephra fall (possibly reworked) and paleosol complex. Thickness: 12 cm. Grain size: medium lapilli (5-8 mm) to coarse ash. Bedding: massive lapilli base (3.5 cm) grading upward into coarse ash soil with pockets of normally graded mafic fine lapilli scoria. Sorting: base-well sorted; pockets of mafic scoria-well sorted. Juvenile clast type: black (dense, scoria-like clasts). Remarks: mafic scoria from random pockets. Munsell color-wet: 5 YR 2/2. Munsell color-dry: 5 YR 5/2. Grain shape: angular. Age: >3650+/-150 yr. B.P. | 01KW-CP4-8 | Tephra Fall | Cumulate | Glass | 60.31 | 1.9 | 14.58 | 9.21 | 0.14 | 2.73 | 5.82 | 3.37 | 1.72 | 100 | 3405 | EMP | 9.21 | Cl=0.23 | EMP |
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