GEOROC Sample Information
Location
Latitude 31.7325 | Longitude 130.6497
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: AR58
Sample Information
ANDESITE
OUTCROP
Sample Age Information
No sample age information given.
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
AGE | 0.5 ± 0.06 MA |
AR38_AR36 | 0.1872 ± 0.0007 |
AR40_AR36 | 316.9 ± 0.6 |
K2O | 1.76 WT% |
AR40 | 0.0000000283 ± 0.0000000032 CCMSTP/G |