AGDB2 rock sample M178985

(metamorphic, metagabbro)

Field Value
Lab ID M178985
Field ID 87RN286C
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 metagabbro
Sample comment metagabbro-CPX; protolith 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 250 parts per million by weight EDX
Nickel 88 parts per million by weight EDX
Rubidium 30 parts per million by weight EDX
Strontium 255 parts per million by weight EDX
Yttrium 14 parts per million by weight EDX
Zirconium 34 parts per million by weight EDX
Niobium 16 parts per million by weight EDX
Element Value Units Technique Digestion Decomposition Laboratory
Sulfur 0.048 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Sulfur 0.048 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Chromium 250 ppm XRF T EDXRF USGS-BGC
Nickel 88 ppm XRF T EDXRF USGS-BGC
Rubidium 30 ppm XRF T EDXRF USGS-BGC
Strontium 255 ppm XRF T EDXRF USGS-BGC
Yttrium 14 ppm XRF T EDXRF USGS-BGC
Zirconium 34 ppm XRF T EDXRF USGS-BGC
Niobium 16 ppm XRF T EDXRF USGS-BGC
Al2O3 5.97 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
CaO 19.8 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
FeO 4.81 pct TT T HF-H2SO4 USGS-BGC
FeTO3 7.41 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
K2O 0.97 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
LOI 5.19 pct GV T combustion USGS-BGC
MgO 13.3 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
MnO 0.14 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
Na2O 0.53 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
P2O5 0.16 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
SiO2 45.8 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC
TiO2 0.72 pct XRF T LiBO2-Li2B4O7 fusion USGS-BGC