GEOROC Sample Information

Location
Latitude 31.7475 | Longitude 130.6747
RYUKYU ARC / RYUKYU ARC / KYUSHU / YUWANDAKE ANDESITE
KAJIKI AREA
CONVERGENT MARGIN

Reference

TATSUMI Y.,SUDO M.,ISHIHARA K.

PRE-CALDERA VOLCANIC HISTORY IN AIRA CALDERA: K-AR DATING OF LAVAS FROM KAJIKI AND KOKOBU AREAS IN NORTHERN PART AND USHINE AREA IN SOUTHERN PART OF THE CALDERA

BULL. VOLCANOL. SOC. JAPAN, SER. 2 45 [2000] 1-12

Sample Name: AR59-1

Sample Information

ANDESITE
OUTCROP

Sample Age Information

No sample age information given.

Chemistry (and, if given, analytical ages)

Analyzed: WHOLE ROCK

AGE0.6 ± 0.14 MA
AR38_AR360.1874 ± 0.0007
AR40_AR36307.1 ± 0.5
K2O2.1 WT%
AR400.0000000407 ± 0.0000000096 CCMSTP/G

Analyzed: WHOLE ROCK

AGE0.72 ± 0.13 MA
AR38_AR360.1864 ± 0.0006
AR40_AR36304.7 ± 0.5
AR400.0000000488 ± 0.000000009 CCMSTP/G