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 |