| Field | Value |
|---|---|
| Lab ID | M193435 |
| Field ID | 90RN164A |
| Job ID | MF98 |
| Sample submitter | Brew, David A. |
| Project name | Greater Juneau Geologic Investigations |
| Date submitted | 8/24/1990 0:00:00 |
| Country | United States |
| State | AK |
| Map quadrangle | Petersburg |
| Geographic latitude | 56.50944 |
| Geographic longitude | -132.05306 |
| Sample source | drill core |
| Collection method | composite |
| Primary media type | rock |
| Secondary media type | igneous |
| Sample media name | rhyolite porphyry |
| Sample comment | porphyritic rhyolite |
| Geologic age | Miocene |
| Stratigraphic unit | Groundhog Basin RY |
| Igneous setting | dike/sill |
| (click for info) | |
| Geologic map unit | -132.05306, 56.50944 |
| Nearby scientific data | Find additional scientific data near this location |
| Element | Measured value | Units of measure | Analytical method |
|---|---|---|---|
| Chromium | <270 | parts per million by weight | WDX_Fuse |
| Rubidium | 620 | parts per million by weight | EDX |
| Strontium | 12 | parts per million by weight | EDX |
| Yttrium | 188 | parts per million by weight | EDX |
| Zirconium | 136 | parts per million by weight | EDX |
| Niobium | 84 | parts per million by weight | EDX |
| Molybdenum | <20 | parts per million by weight | EDX |
| Tin | 33 | parts per million by weight | EDX |
| Barium | <30 | parts per million by weight | EDX |
| Lanthanum | <30 | parts per million by weight | EDX |
| Cerium | 64 | parts per million by weight | EDX |
| Element | Value | Units | Technique | Digestion | Decomposition | Laboratory |
|---|---|---|---|---|---|---|
| Fluorine | 0.74 | pct | ISE | T | LiBO2 or Na2CO3 fusion | USGS-BGC |
| Sulfur | <0.02 | pct | XRF | T | LiBO2-Li2B4O7 fusion | USGS-BGC |
| Sulfur | <0.02 | pct | XRF | T | LiBO2-Li2B4O7 fusion | USGS-BGC |
| Chlorine | 0.008 | pct | ISE | T | HF-KMnO4-H2SO4 | USGS-BGC |
| Chromium | <270 | ppm | XRF | T | LiBO2-Li2B4O7 fusion | USGS-BGC |
| Rubidium | 620 | ppm | XRF | T | EDXRF | USGS-BGC |
| Strontium | 12 | ppm | XRF | T | EDXRF | USGS-BGC |
| Yttrium | 188 | ppm | XRF | T | EDXRF | USGS-BGC |
| Zirconium | 136 | ppm | XRF | T | EDXRF | USGS-BGC |
| Niobium | 84 | ppm | XRF | T | EDXRF | USGS-BGC |
| Molybdenum | L20 | ppm | XRF | T | EDXRF | USGS-BGC |
| Tin | 33 | ppm | XRF | T | EDXRF | USGS-BGC |
| Barium | L30 | ppm | XRF | T | EDXRF | USGS-BGC |
| Lanthanum | L30 | ppm | XRF | T | EDXRF | USGS-BGC |
| Cerium | 64 | ppm | XRF | T | EDXRF | USGS-BGC |
| Al2O3 | 13.2 | pct | XRF | T | LiBO2-Li2B4O7 fusion | USGS-BGC |
| CaO | 0.5 | pct | XRF | T | LiBO2-Li2B4O7 fusion | USGS-BGC |
| FeO | 0.88 | pct | TT | T | HF-H2SO4 | USGS-BGC |
| FeTO3 | 1.14 | pct | XRF | T | LiBO2-Li2B4O7 fusion | USGS-BGC |
| K2O | 4.53 | pct | XRF | T | LiBO2-Li2B4O7 fusion | USGS-BGC |
| LOI | 0.36 | pct | GV | T | combustion | USGS-BGC |
| MgO | L0.1 | pct | XRF | T | LiBO2-Li2B4O7 fusion | USGS-BGC |
| MnO | L0.02 | pct | XRF | T | LiBO2-Li2B4O7 fusion | USGS-BGC |
| Na2O | 4.35 | pct | XRF | T | LiBO2-Li2B4O7 fusion | USGS-BGC |
| P2O5 | L0.05 | pct | XRF | T | LiBO2-Li2B4O7 fusion | USGS-BGC |
| SiO2 | 74.5 | pct | XRF | T | LiBO2-Li2B4O7 fusion | USGS-BGC |
| TiO2 | 0.02 | pct | XRF | T | LiBO2-Li2B4O7 fusion | USGS-BGC |