Latest Issue

Journal of Geography (Chigaku Zasshi), 2023 Vol.132 No.3

2023 Vol.132 No.3

Phoenix Fold on the Southern Coast of the Kii Peninsula

The Samotogawa Formation of the Paleogene to Neogene Muro Group at the southern Kii Peninsula is composed of sandstone/mudstone alternation, which forms part of the Muro Accretionary Complex of the Southern Shimanto Belt. It has fold structures of various sizes formed in partially consolidated sediments. The photograph shows a good example of these fold structures observed on the coast near Kuchiwabuka, Susami Town, Nishimuro County, Wakayama Prefecture. Once speculated to be gravitational slump folds on the sea floor, they are now considered to have deformed under high pore pressure during accretion, because the direction of fold axis overturning is opposed at some locations. The fold at the middle of the image is called the Phoenix fold, after the name of the nearby village of Amadori, which means bird of heaven. The horizontal top part of the fold is about 5 m in length and provides an impressive landscape. Visitors can sign up for a guided tour through the Nanki Kumano Geopark Center.

(Photograph & Explanation: Junko KOMATSUBARA; March 28, 2023)

Original Articles

Transition of Woodlands around Farmyards at Settlements
 in the Northwestern Part of the Kanto Plain

Yoshitaka KOSHINA

Journal of Geography (Chigaku Zasshi), 2023, 132(3), 197.


Reconsidering Geoscience History in Twentieth-Century Japan
 by Deciphering the Diary:
 The Geoscientist Mochizuki Katsumi’s Life and Work, 1914—1963

Toshihiro YAMADA, Michiko YAJIMA,
Toshihiko SUGAI and Toshiyuki SHIMAZU

Journal of Geography (Chigaku Zasshi), 2023, 132(3), 217.


In-situ Denitrification of Nitrate-nitrogen Contaminated Groundwater
 by a Permeable Reactive Barrier Using Sulfur—Limestone

Seongwon LEE and Norio TASE

Journal of Geography (Chigaku Zasshi), 2023, 132(3), 231.


Short Article

14C Ages of Samples Collected from Conglomeratic Beachrocks Developed
 at the Northern Coast of Geruma Island, West of Okinawa Island

Kunio OMOTO, Akiko IKEDA and Yoriko YOKOO

Journal of Geography (Chigaku Zasshi), 2023, 132(3), 247.



Analysis of Factors Encouraging Students to Take the Earth Science Course
 at the College of Humanities and Social Sciences:
 Survey on Student Attitudes

Rena NAGATA and Takehiko MIKAMI

Journal of Geography (Chigaku Zasshi), 2023, 132(3), 257.