Discovery of New Hole on the Shigawatari-Cave System, in Iwate Prefecture: Geological Research with a Consideration of Cave System Development as a Groundwater Drainage of the Limestone Body

Abstract

 Shigawatari-Cave, located in Iwaizumi Town, Iwate Prefecture. Which is well known by Ryusen-Cave and Akka-Cave. A new hole was discovered by the research explore of a groundwater drainage consideration. White and mysterious water cannel of Shigawatari-Cave is shown in the main picture, and super mushroom, that is dualism stalagmite, is not reported in the previous work. (Photo by Japanese Association of Cave Explore, and Wonder × Wonder; TV program of NHK)
Atsunao MARUI (Geological Survey of Japan, AIST)