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Sample SHLBMB1

NavDat sample number 86636 · BASALT

Sample

Sample IDSHLBMB1
Rock nameBASALT
Rock typePLUTONIC
CompositionMAFIC
MaterialIGNEOUS
CommentMedium dark gray microvesicular intermediate to trachytic lava with common feldspar to 4 mm, most with conspicuous albite twins. Scarce to common (sensu mafic) mafics are mostly olivine to 3 mm, many entirely altered to orange hematitic masses, but some with relict cores and rims, and lesser black pyroxene. Larger vugs to 3 mm near weathered surfaces are filled with very coarse white secondary mineral, probably calcite.

Location

Latitude37.3358
Longitude-116.681
State / provinceNEVADA

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
9.675 9.8 9.55

Analyses

Whole Rock

ItemValueStd. dev.UnitMethod
AL2O317.55WT%XRF
BAO1578.7PPMXRF
BA1414PPMXRF
CAO9.091WT%XRF
CR2O326.3207PPMXRF
CR18.01PPMXRF
FE2O310.58WT%XRF
K2O1.793WT%XRF
LOI1.56WT%XRF
MGO3.247WT%XRF
MNO0.2047WT%XRF
MN0.1585WT%XRF
NA2O3.897WT%XRF
NB2O538.7388PPMXRF
NIOPPMXRF
NIPPMXRF
P2O51.01WT%XRF
RB2O37.4664PPMXRF
SIO247.74WT%XRF
SRO1830.65PPMXRF
TIO22.022WT%XRF
TOTAL98.66WT%XRF
V2O3383.797PPMXRF
Y2O347.3803PPMXRF
ZNO158.328PPMXRF
ZN127.2PPMXRF
ZRO2547.885PPMXRF
ZR405.6PPMXRF

References