AGDB2 rock sample M178994

(metamorphic, phyllite)

Field Value
Lab ID M178994
Field ID 87RN287A
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-1 258-261'; Greens Ck VMS deposit area
Sampling depth 258-261'
Sample source drill core
Collection method channel
Primary media type rock
Secondary media type metamorphic
Sample media name phyllite
Sample comment mpsite-dol PHY; protolith altd mafic rock
Additional sample attributes metasomatism unknown; quartz present; calcareous or dolomitic (marble)
Geologic age Devonian--Pliocene
Alteration type altered
Metamorphic setting hydrothermal
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 1450 parts per million by weight EDX
Nickel 530 parts per million by weight EDX
Rubidium 38 parts per million by weight EDX
Strontium 130 parts per million by weight EDX
Yttrium 10 parts per million by weight EDX
Zirconium 24 parts per million by weight EDX
Niobium 14 parts per million by weight EDX
Element Value Units Technique Digestion Decomposition Laboratory
Sulfur 0.3 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Sulfur 0.3 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Chromium 1450 ppm XRF T EDXRF USGS-BGC
Nickel 530 ppm XRF T EDXRF USGS-BGC
Rubidium 38 ppm XRF T EDXRF USGS-BGC
Strontium 130 ppm XRF T EDXRF USGS-BGC
Yttrium 10 ppm XRF T EDXRF USGS-BGC
Zirconium 24 ppm XRF T EDXRF USGS-BGC
Niobium 14 ppm XRF T EDXRF USGS-BGC
Al2O3 11.7 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
CaO 7.3 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
FeO 5.88 pct TT T HF-H2SO4 USGS-BGC
FeTO3 7.65 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
K2O 1.64 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
LOI 19 pct GV T combustion USGS-BGC
MgO 11.7 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
MnO 0.94 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Na2O 0.38 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
P2O5 L0.05 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
SiO2 37.4 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
TiO2 0.12 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC