[S-EM05] Full vector geomagnetic and paleomagnetic secular variation: direction, intensity and dynamo simulations

[SEM05-05] Archaeomagnetism in Japan: a historical review and new perspectives

*畠山 唯達¹、渋谷 秀敏² (1.岡山理科大学情報処理センター、2.熊本大学大学院自然科学研究科)

キーワード：Archaeomagnetism, Paleomagnetism, Geomagnetic Secular Variation, Geochronology

Archaeomagnetism, a branch of paleomagnetism aimed at archaeological relics and antiquities, provides the highest-precision geomagnetic data in all paleomagnetic targets. In Japan, researches of archaeomagnetism for paleodirection and paleointensity would begin in 1940s and have achieved a certain goal in 1970s and 1980s. Although for a quarter century after that a lot of measurements of archaeomagnetic direction have been conducted to give date estimates to few thousand baked earth sites such as old kilns, archaeomagnetic results in Japan brought out almost no new contribution and feedback to geomagnetic secular variation study. Here we refer the history and the current status of archaeomagnetism in Japan, and we also introduce our recent efforts to build a new archaeomagnetic database and secular variation curve in Japan and recent measurements carried out by the Japanese paleomagnetic community.