GEOROC Sample Information

Location
Latitude -25.2008 | Longitude -68.5556
ANDEAN ARC / CENTRAL ANDEAN VOLCANIC ZONE / CHILE / LASTARRIA
STRATOVOLCANO
CONVERGENT MARGIN

Reference

WITTENBRINK R.

TEMPORAL VARIATIONS OF THE MAGMA GENESIS OF MIOCENE AND QUATERNARY VOLCANIC ROCKS IN THE SOUTHERN PART OF THE CENTRAL VOLCANIC ZONE OF THE ANDES (CVZ, 25°-26°S, 67°-69°W)

BERLINER GEOWISS. ABH. A 193 [1997] 1-135

Sample Name: 132-LASTRW-3

Sample Information

NOT GIVEN / LAVA
OUTCROP

Sample Age Information

No sample age information given.

Chemistry (and, if given, analytical ages)

Analyzed: WHOLE ROCK

ND143_ND1440.51245 ± 0.000004
SR87_SR860.70693 ± 0.00002
D18O7.7 ‰SMOW
AL2O315.44 WT%
CAO5.94 WT%
FE2O3T6.47 WT%
K2O2.61 WT%
LOI0.16 WT%
MGO3.45 WT%
MNO0.09 WT%
NA2O3.37 WT%
P2O50.25 WT%
SIO260.96 WT%
TIO20.97 WT%
CE77 PPM
DY3.8 PPM
ER1.8 PPM
EU1.4 PPM
GD5 PPM
HO0.65 PPM
LA36 PPM
LU0.23 PPM
ND33 PPM
PR8.5 PPM
SM6.6 PPM
TB0.78 PPM
TM0.25 PPM
YB1.6 PPM
BA497 PPM
CO20 PPM
CR83 PPM
CS7.44 PPM
GA20 PPM
HF4.31 PPM
NB13.89 PPM
NI32 PPM
PB10.28 PPM
RB119 PPM
SC7.05 PPM
SR531 PPM
TA1.69 PPM
TH23.38 PPM
U6.43 PPM
Y18 PPM
ZR167 PPM

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) BIOTITE

AL2O315.12 WT%
CAO0.09 WT%
FEOT12.18 WT%
K2O9.59 WT%
MGO17.67 WT%
MNO0.07 WT%
NA2O0.61 WT%
SIO237.09 WT%
TIO24.48 WT%
BA0.93 PPM

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) BIOTITE

AL2O314.31 WT%
FEOT11.69 WT%
K2O9.31 WT%
MGO18.43 WT%
MNO0.09 WT%
NA2O0.85 WT%
SIO237.55 WT%
TIO24.75 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) CLINOPYROXENE

AL2O31.68 WT%
CAO20.76 WT%
FEOT10.31 WT%
K2O0.06 WT%
MGO14.97 WT%
MNO0.31 WT%
NA2O0.46 WT%
SIO250.89 WT%
TIO20.26 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) CLINOPYROXENE

AL2O33.12 WT%
CAO20.38 WT%
FEOT9.08 WT%
MGO14.51 WT%
MNO0.23 WT%
NA2O0.44 WT%
SIO251.68 WT%
TIO20.41 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) CLINOPYROXENE

AL2O31.22 WT%
CAO20.06 WT%
FEOT8.66 WT%
MGO15.62 WT%
MNO0.33 WT%
NA2O0.42 WT%
SIO251.46 WT%
TIO20.15 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) GLASS

AL2O314.04 WT%
CAO0.81 WT%
FEOT2.12 WT%
K2O4.86 WT%
MGO1.02 WT%
MNO0.08 WT%
NA2O1.25 WT%
SIO274.46 WT%
TIO20.59 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) GLASS

AL2O320.85 WT%
CAO4.68 WT%
FEOT0.86 WT%
K2O2.78 WT%
MNO0.12 WT%
NA2O4.84 WT%
SIO264.15 WT%
TIO21.05 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) MAGNETITE

AL2O33.67 WT%
FEOT78.71 WT%
MGO2.69 WT%
MNO0.38 WT%
SIO20.17 WT%
TIO27.52 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) ORTHOPYROXENE

AL2O30.75 WT%
CAO1.01 WT%
FEOT20.31 WT%
MGO25.01 WT%
MNO0.64 WT%
SIO252.11 WT%
TIO20.12 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) ORTHOPYROXENE

AL2O30.82 WT%
CAO1.04 WT%
FEOT19.97 WT%
MGO24.89 WT%
MNO0.57 WT%
SIO251.81 WT%
TIO20.37 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AL2O329.88 WT%
CAO10.96 WT%
FEOT0.35 WT%
K2O0.51 WT%
NA2O5.45 WT%
SIO252.81 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AL2O330.19 WT%
CAO11.22 WT%
FEOT0.36 WT%
K2O0.44 WT%
NA2O5.13 WT%
SIO252.64 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AL2O326.74 WT%
CAO9.69 WT%
FEOT0.32 WT%
K2O0.64 WT%
NA2O5.67 WT%
SIO256.93 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AL2O330.11 WT%
CAO11.11 WT%
FEOT0.55 WT%
K2O0.45 WT%
NA2O5.15 WT%
SIO252.54 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AL2O330.22 WT%
CAO11.78 WT%
FEOT0.27 WT%
K2O0.27 WT%
NA2O4.36 WT%
SIO253.07 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AL2O333.34 WT%
CAO15.23 WT%
FEOT0.72 WT%
K2O0.31 WT%
NA2O2.25 WT%
SIO248.11 WT%

Analyzed: WHOLE ROCK

AL2O324.66 WT%
CAO8.8 WT%
FEOT2.85 WT%
K2O1.65 WT%
MGO1.68 WT%
MNO0.05 WT%
NA2O3.67 WT%
SIO256.26 WT%
TIO20.23 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AL2O330.01 WT%
CAO12.11 WT%
FEOT0.48 WT%
K2O0.27 WT%
NA2O4.2 WT%
SIO252.86 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AL2O330.1 WT%
CAO11.63 WT%
FEOT0.45 WT%
K2O0.38 WT%
NA2O4.51 WT%
SIO252.91 WT%


Reference

EMMERMANN R.,SIEBEL W.,HAHNE K.,TRUMBULL R. B.,WITTENBRINK R.,BÜSCH W.,GERSTENBERGER H.

EVIDENCE FOR LATE MIOCENE TO RECENT CONTAMINATION OF ARC ANDESITES BY CRUSTAL MELTS IN THE CHILEAN ANDES (25° - 26°) AND ITS GEODYNAMIC IMPLICATIONS

J. S. AMER. EARTH SCI. 12 [1999] 135-155

Sample Name: 132-LASTRW-3

Sample Information

ANDESITE / LAVA
OUTCROP

Sample Age Information

No sample age information given.

Chemistry (and, if given, analytical ages)

Analyzed: WHOLE ROCK

PB206_PB20418.837
PB207_PB20415.362
PB208_PB20438.784


Reference

TRUMBULL R. B.,ERZINGER J.,FRANZ G.,ROSNER M.

SLAB-DERIVED BORON ISOTOPE SIGNATURES IN ARC VOLCANIC ROCKS FROM THE CENTRAL ANDES AND EVIDENCE FOR BORON ISOTOPE FRACTIONATION DURING PROGRESSIVE SLAB DEHYDRATION

GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 4 [2003]

Sample Name: 132-LASTRW3

Sample Information

NOT GIVEN
OUTCROP

Sample Age Information

HOLOCENE


Chemistry (and, if given, analytical ages)

Analyzed: WHOLE ROCK

D11B2 ± 0.9 ‰NBS951
B60 PPM


Reference

LINDSAY J. M.,KASEMANN S. A.,MEIXNER A.,CAFFE P. J.,LUCASSEN F.,ROSNER M.,BECCHIO R. A.,SARCHI C.

LITHIUM CONCENTRATIONS AND ISOTOPE SIGNATURES OF PALAEOZOIC BASEMENT ROCKS AND CENOZOIC VOLCANIC ROCKS FROM THE CENTRAL ANDEAN ARC AND BACK-ARC

MINER. DEPOSITA 55 [2020] 1071-1084

Sample Name: 132-LASTRW-3

Sample Information

ANDESITE
OUTCROP

Sample Age Information

No sample age information given.

Chemistry (and, if given, analytical ages)

Analyzed: WHOLE ROCK

D7LI1.9 ± 0.1 ‰LSVEC
LI24 PPM