← Search

Sample DS74A9

NavDat sample number 84267 · NOT-GIVEN

Sample

Sample IDDS74A9
Rock nameNOT-GIVEN
Rock typeVOLCANIC
MaterialIGNEOUS
CommentMedium light gray vitric lava with very abundant black mafics, mostly biotite, with lesser hornblende. Felsic abundance very difficult to estimate in light vitric matrix, but apparently abundant, with twinned plagioclase, sanidine, and quartz all observed. One small light green clinopyroxene, and one 4 mm glomerocryst of hornblende observed.

Location

Latitude37.4201
Longitude-116.038
State / provinceNEVADA

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
15.515 15.53 15.5

Analyses

Whole Rock

ItemValueStd. dev.UnitMethod
AL2O313.64WT%XRF
BAO1148.86PPMXRF
BA1029PPMXRF
CAO1.365WT%XRF
CR2O3PPMXRF
CRPPMXRF
FE2O32.224WT%XRF
K2O5.129WT%XRF
LOI3.19WT%XRF
MGO0.3661WT%XRF
MNO0.0589WT%XRF
MN0.0456WT%XRF
NA2O3.155WT%XRF
NB2O536.5643PPMXRF
NIO9.5052PPMXRF
NI7.469PPMXRF
P2O50.0657WT%XRF
RB2O224.842PPMXRF
SIO270WT%XRF
SRO276.135PPMXRF
TIO20.2945WT%XRF
TOTAL99.48WT%XRF
V2O324.3753PPMXRF
Y2O341.7927PPMXRF
ZNO71.3474PPMXRF
ZN57.32PPMXRF
ZRO2402.133PPMXRF
ZR297.7PPMXRF

References