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

AGE0.5 ± 0.06 MA
AR38_AR360.1872 ± 0.0007
AR40_AR36316.9 ± 0.6
K2O1.76 WT%
AR400.0000000283 ± 0.0000000032 CCMSTP/G