AGDB2 rock sample M172056

(igneous, dacite)

Field Value
Lab ID M172056
Field ID 84CE113C
Job ID LQ48
Sample submitter Shew, Nora B.
Project name Alaska Geochronology
Date submitted 5/14/1986 0:00:00
Country United States
State AK
Map quadrangle Stepovak Bay
Geographic latitude 55.88833
Geographic longitude -159.12
Sample source outcrop
Collection method grab/single
Primary media type rock
Secondary media type igneous
Sample media name dacite
Sample comment dacite
Geologic age Oligocene
Igneous setting extrusive
(click for info)
Geologic map unit -159.12, 55.88833
Nearby scientific data Find additional scientific data near this location
Element Measured value Units of measure Analytical method
Chromium 287 parts per million by weight EDX
Nickel 73 parts per million by weight EDX
Copper <10 parts per million by weight EDX
Zinc 53 parts per million by weight EDX
Rubidium <10 parts per million by weight EDX
Strontium 373 parts per million by weight EDX
Yttrium 16 parts per million by weight EDX
Zirconium 55 parts per million by weight EDX
Niobium <10 parts per million by weight EDX
Barium 402 parts per million by weight EDX
Lanthanum <10 parts per million by weight EDX
Cerium <10 parts per million by weight EDX
Element Value Units Technique Digestion Decomposition Laboratory
Chromium 287 ppm XRF T EDXRF USGS-BGC
Nickel 73 ppm XRF T EDXRF USGS-BGC
Copper L10 ppm XRF T EDXRF USGS-BGC
Zinc 53 ppm XRF T EDXRF USGS-BGC
Rubidium L10 ppm XRF T EDXRF USGS-BGC
Strontium 373 ppm XRF T EDXRF USGS-BGC
Yttrium 16 ppm XRF T EDXRF USGS-BGC
Zirconium 55 ppm XRF T EDXRF USGS-BGC
Niobium L10 ppm XRF T EDXRF USGS-BGC
Barium 402 ppm XRF T EDXRF USGS-BGC
Lanthanum L10 ppm XRF T EDXRF USGS-BGC
Cerium L10 ppm XRF T EDXRF USGS-BGC
Al2O3 17.7 pct XRF T LiBO2-Li2B4O7 fusion USGS-BAL
CaO 9.97 pct XRF T LiBO2-Li2B4O7 fusion USGS-BAL
CO2 1.28 pct TT T HClO4 USGS-BAL
FeO 6.73 pct TT T HF-H2SO4 USGS-BAL
FeTO3 9.29 pct XRF T LiBO2-Li2B4O7 fusion USGS-BAL
H2Om 0.49 pct GV T USGS-BAL
H2Ob 2.5 pct TT T flux and combustion, total H2O less moisture USGS-BAL
K2O 0.36 pct XRF T LiBO2-Li2B4O7 fusion USGS-BAL
LOI 3.61 pct GV T combustion USGS-BAL
MgO 7 pct XRF T LiBO2-Li2B4O7 fusion USGS-BAL
MnO 0.2 pct XRF T LiBO2-Li2B4O7 fusion USGS-BAL
Na2O 2.6 pct XRF T LiBO2-Li2B4O7 fusion USGS-BAL
P2O5 0.12 pct XRF T LiBO2-Li2B4O7 fusion USGS-BAL
SiO2 47.8 pct XRF T LiBO2-Li2B4O7 fusion USGS-BAL
TiO2 0.85 pct XRF T LiBO2-Li2B4O7 fusion USGS-BAL