AGDB2 rock sample M178986

(metamorphic, serpentinite)

Field Value
Lab ID M178986
Field ID 87RN286E
Job ID LV55
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 58.10278
Geographic longitude -134.66111
loc_desc Mariposite Ridge; Greens Ck VMS deposit area
Sample source outcrop
Collection method composite
Primary media type rock
Secondary media type metamorphic
Sample media name serpentinite
Sample comment SRP; protolith ultramafic rock
Additional sample attributes metasomatism unknown; quartz absent; ultramafic (serpentinite, pyroxenite)
Geologic age Devonian--Pliocene
Stratigraphic unit Mariposite Ridge SP
Alteration type altered
Metamorphic setting shear
Metamorphic facies or grade greenschist
(click for info)
Geologic map unit -134.66111, 58.10278
Nearby scientific data Find additional scientific data near this location
Element Measured value Units of measure Analytical method
Chromium 2600 parts per million by weight EDX
Nickel 2150 parts per million by weight EDX
Rubidium <10 parts per million by weight EDX
Strontium 12 parts per million by weight EDX
Yttrium <10 parts per million by weight EDX
Zirconium 16 parts per million by weight EDX
Niobium 10 parts per million by weight EDX
Element Value Units Technique Digestion Decomposition Laboratory
Sulfur 0.036 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Sulfur 0.036 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Chromium 2600 ppm XRF T EDXRF USGS-BGC
Nickel 2150 ppm XRF T EDXRF USGS-BGC
Rubidium L10 ppm XRF T EDXRF USGS-BGC
Strontium 12 ppm XRF T EDXRF USGS-BGC
Yttrium L10 ppm XRF T EDXRF USGS-BGC
Zirconium 16 ppm XRF T EDXRF USGS-BGC
Niobium 10 ppm XRF T EDXRF USGS-BGC
Al2O3 1.8 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
CaO 0.14 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
FeO 3.11 pct TT T HF-H2SO4 USGS-BGC
FeTO3 7 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
K2O L0.02 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
LOI 11.5 pct GV T combustion USGS-BGC
MgO 37.2 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
MnO 0.13 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Na2O L0.15 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
P2O5 L0.05 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
SiO2 41.3 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
TiO2 L0.02 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC