AGDB2 rock sample M178995

(metamorphic, phyllite)

Field Value
Lab ID M178995
Field ID 87RN287B
Job ID LV56
Sample submitter Brew, David A.
Project name Juneau AMRAP
Date submitted 7/22/1987 0:00:00
Country United States
State AK
Map quadrangle Juneau
Geographic latitude 58.10083
Geographic longitude -134.65583
loc_desc MPR-1 40-41'; Greens Ck VMS deposit area
Sampling depth 40-41'
Sample source drill core
Collection method channel
Primary media type rock
Secondary media type metamorphic
Sample media name phyllite
Sample comment gn-gy musc PHY (GST); protolith altd basalt
Additional sample attributes metasomatism unknown; quartz present; mafic (greenstone, greenschist, amphibolite)
Geologic age Devonian--Triassic
Stratigraphic unit Mariposite Ridge GS
Alteration type altered
Metamorphic setting regional
Metamorphic facies or grade greenschist
(click for info)
Geologic map unit -134.65583, 58.10083
Nearby scientific data Find additional scientific data near this location
Element Measured value Units of measure Analytical method
Chromium 32 parts per million by weight EDX
Nickel <20 parts per million by weight EDX
Rubidium 50 parts per million by weight EDX
Strontium 270 parts per million by weight EDX
Yttrium 30 parts per million by weight EDX
Zirconium 92 parts per million by weight EDX
Niobium 10 parts per million by weight EDX
Element Value Units Technique Digestion Decomposition Laboratory
Sulfur 0.12 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Sulfur 0.12 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Chromium 32 ppm XRF T EDXRF USGS-BGC
Nickel L20 ppm XRF T EDXRF USGS-BGC
Rubidium 50 ppm XRF T EDXRF USGS-BGC
Strontium 270 ppm XRF T EDXRF USGS-BGC
Yttrium 30 ppm XRF T EDXRF USGS-BGC
Zirconium 92 ppm XRF T EDXRF USGS-BGC
Niobium 10 ppm XRF T EDXRF USGS-BGC
Al2O3 16.1 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
CaO 3.01 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
FeO 8.6 pct TT T HF-H2SO4 USGS-BGC
FeTO3 11.9 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
K2O 3.06 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
LOI 6.94 pct GV T combustion USGS-BGC
MgO 5.74 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
MnO 0.52 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Na2O 2.3 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
P2O5 0.5 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
SiO2 47.9 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
TiO2 1 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC