AGDB2 rock sample M178991

(metamorphic, metagabbro)

Field Value
Lab ID M178991
Field ID 87RN286A
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 58.10278
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 metagabbro
Sample comment meta hb gabbro-CPX; protolith hb gabbro
Geologic age Devonian--Pliocene
Stratigraphic unit clinopyroxenite of Mariposite ridge
Alteration type altered
Igneous setting intrusive
(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 42 parts per million by weight EDX
Nickel 30 parts per million by weight EDX
Rubidium <10 parts per million by weight EDX
Strontium 620 parts per million by weight EDX
Yttrium <10 parts per million by weight EDX
Zirconium 46 parts per million by weight EDX
Niobium <10 parts per million by weight EDX
Element Value Units Technique Digestion Decomposition Laboratory
Sulfur 0.21 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Sulfur 0.21 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Chromium 42 ppm XRF T EDXRF USGS-BGC
Nickel 30 ppm XRF T EDXRF USGS-BGC
Rubidium L10 ppm XRF T EDXRF USGS-BGC
Strontium 620 ppm XRF T EDXRF USGS-BGC
Yttrium L10 ppm XRF T EDXRF USGS-BGC
Zirconium 46 ppm XRF T EDXRF USGS-BGC
Niobium L10 ppm XRF T EDXRF USGS-BGC
Al2O3 12.4 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
CaO 13.1 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
FeO 13.4 pct TT T HF-H2SO4 USGS-BGC
FeTO3 22.1 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
K2O 0.18 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
LOI 4.41 pct GV T combustion USGS-BGC
MgO 8.89 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
MnO 0.29 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Na2O 0.37 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
P2O5 2.12 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
SiO2 33.3 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
TiO2 1.92 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC