GEOROC Sample Information

Location
Latitude 45.1 | Longitude 141.27
KURILE ARC / KURILE ARC / RISHIRI / RISHIRI / TANETOMI LAVA
LOWER LAVA 1
CONVERGENT MARGIN

Reference

KURITANI T.

REPLENISHMENT OF A MAFIC MAGMA IN A ZONED FELSIC MAGMA CHAMBER BENEATH RISHIRI VOLCANO, JAPAN

BULL. VOLCANOL. 62 [2001] 533-548

Sample Name: KR-74

Sample Information

ANDESITE / LAVA FLOW
OUTCROP

Sample Age Information

No sample age information given.

Chemistry (and, if given, analytical ages)

Analyzed: WHOLE ROCK

AL2O317.6 WT%
CAO5.1 WT%
FE2O3T6.39 WT%
K2O1.36 WT%
MGO2.04 WT%
MNO0.14 WT%
NA2O5.36 WT%
P2O50.45 WT%
SIO258.64 WT%
TIO20.94 WT%
BA248 PPM
CR1.6 PPM
NB8.1 PPM
NI0 PPM
PB6.1 PPM
RB32.2 PPM
SR456 PPM
TH4.6 PPM
Y26 PPM
ZR322 PPM


Reference

NAKAMURA E.,KURITANI T.,KITAGAWA H.

ASSIMILATION AND FRACTIONAL CRYSTALLIZATION CONTROLLED BY TRANSPORT PROCESS OF CRUSTAL MELT: IMPLICATIONS FROM AN ALKALI BASALT-DACITE SUITE FROM RISHIRI VOLCANO, JAPAN

J. PETROL. 46 [2005] 1421-1442

Sample Name: KR-74

Sample Information

ANDESITE / LAVA FLOW
OUTCROP

Sample Age Information

No sample age information given.

Chemistry (and, if given, analytical ages)

Analyzed: WHOLE ROCK

ND143_ND1440.512982 ± 0.000002
PB206_PB20418.3329 ± 0.0014
PB207_PB20415.5246 ± 0.001
PB208_PB20438.2026 ± 0.0023
SR87_SR860.703101 ± 0.000011
AL2O317.61 WT%
CAO5.1 WT%
FE2O32.48 WT%
FEO3.56 WT%
H2OP0.94 WT%
K2O1.36 WT%
MGO2.11 WT%
MNO0.15 WT%
NA2O5.47 WT%
P2O50.47 WT%
SIO260.03 WT%
TIO20.91 WT%
CE56.2 PPM
DY5.18 PPM
ER3.06 PPM
EU1.7 PPM
GD5.3 PPM
HO1.1 PPM
LA25.4 PPM
LU0.53 PPM
ND26.5 PPM
PR6.66 PPM
SM5.22 PPM
TB0.86 PPM
TM0.48 PPM
YB3.46 PPM
B10.5 PPM
BA307 PPM
CR0 PPM
CS1.54 PPM
HF5.72 PPM
LI13.9 PPM
NB8.26 PPM
NI1.3 PPM
PB5.11 PPM
RB35.3 PPM
SR467 PPM
TA0.61 PPM
TH3.85 PPM
U1.16 PPM
Y34.7 PPM
ZR295 PPM


Reference

NAKAMURA E.,YOKOYAMA TETSUYA,KURITANI T.

RATES OF THERMAL AND CHEMICAL EVOLUTION OF MAGMAS IN A COOLING MAGMA CHAMBER: A CHRONOLOGICAL AND THEORETICAL STUDY ON BASALTIC AND ANDESITIC LAVAS FROM RISHIRI VOLCANO, JAPAN

J. PETROL. 48 [2007] 1295-1319

Sample Name: KR-74

Sample Information

ANDESITE
OUTCROP

Sample Age Information

20,200 years


Chemistry (and, if given, analytical ages)

Analyzed: WHOLE ROCK

PB5.29 PPM
TH3.548 PPM
U1.042 PPM
TH230_TH232_ACT0.96 ± 0.004
U234_U238_ACT0.999 ± 0.002
U238_TH232_ACT0.891

Analyzed: WHOLE ROCK

TH3.568 PPM
U1.042 PPM
TH230_TH232_ACT0.961 ± 0.005
U234_U238_ACT1.002 ± 0.002
U238_TH232_ACT0.886