2001 VOL.110 No.3
　表紙写真
アラスカで出現したオーロラ
Aurora Occurrance in Alaska


　2001年３月19日午前０時ころ，アラスカ・フェアバンクス郊外のクリアリ山頂の頭上で見事なオーロラが出現した．前日から太陽活動の活発化を示す様々なデータが得られており，新月と雲一つない晴天といった好条件が重なり，午後10時過ぎからオーロラが出現した．

　左端でひときわ輝いているのは木星，その右下の明るい星は土星．木星右の明るいオーロラのカーテンの中にすばるが見えている．

On 19th March 2001, around midnight big Aurora appeared over sky at Cleary Summit, outside Fairbanks, akaska. In previous day, many geophysical signals suggested high activity of the Sun Flare and an appearance of spectacular Aurora was forcasted. The night was in new moon period and it was just clear sky. The cindition of Aurora was ideal for big Aurora.
写真：石毛良昭（朝日新聞社）Yoshiaki ISHIGE　解説：福田正巳 Masami FUKUDA

CONTENTS 　
Japanese
　Original Articles
Isao SAITO and Noritaka YAGASAKI Large Ranches and Livestock Industry in the Canadian River Valley of the Texas Panhandle
293-313
Yuichi KAGAWA Industrial Urbanization and Changing Locality in Mizushima in a Period of High　Economic Growth
314-338
　Short Articles
Takashi SUGITANI Residents' Environmental Awareness of the Competitive Pumping of Groundwater in Ohno Basin, Fukui, Japan
339-354
Kotaro FUKUI and Takeei KOIZUMI Retreat of Turf Scarps and Extension of Patches of Bare Ground in Alpine Zone of Mt. Kisokoma, Central Japan
355-361
　Notes
Editorial Committee of History of Geosciences in Japan（Tokyo Geographical Society）:Development of Geosciences in Japan, 1924 to 1945 Part-2
362-392
　Reports and Subsidiary Research in 2000
Yoshiyuki KOIDE Trend of the Hadean Research
393-396
Kenji KASHIWAGI and Shunji YOKOYAMA Significance and Prospect of Catalogue of Gravitational Tilting Structures
397-404
Yoichi KAGEYAMA, Makoto NISHIDA and Noboru HIDA Analysis of Lndcover Information Including Varzea in the Amazon Using Remote Sensing Data
405-411
Shigenori OGIHARA and Yoshitaka HAMADA Organic Geochemistry of Hydrothermal-petroleum Seepage at the Geothermal Region of Waiotapu, North Island, New Zealand
412-419
Daiji HIRATA, Hiroyuki YAMASHITA, Kazutaka MANNEN and Hidetsugu TANIGUCHI Lithological Characteristics of the Basement of Hakone Volcano　:　Using of the Deep Drilling Core Sample
420-426
Yukio ISOZAKI and Ayano OTA End-Paleozoic Mass Extinction and Rapid Environmental Change in Shallow Mid-superocean　:　Bio- and Lithostratigraphy of the Middle to Upper Permian Paleo-atoll Limestone
427-432
Toshio KAWANA Holocene Tilting in the Northern and Central Ryukyu Islands, as Deduced from Expansion of the Okinawa Trough
433-438
Jun-ichi HIRABAYASHI The 7th Field Workshop on Volcanic Gases
439-442
　
　Book Reviews
443-448
　Summary of the Earth Science Club Lecture
Mutsumi MOTEGI Landforms and Geological Structures in Bhutan
449-445
Noboru IMAI The Analysis of Elemental Distribution by Geochemical Map
454-458
　Reports on the Geological Excursion to Fairbanks Basin, Central Alaska in March 2001
459-463
　Proceedsings
464-465
　Announcement
466
　Pictorials
1
 Leaning about Aurora Tour in Alaska―The Society's Third Overseas Field Trip―
（Toshio SUZUKI, Yoshiaki ISHIGE and Masami FUKUDA）
2
 Thermal Fature in Waiotapu Geothermal Region, North Island, New Zealand
（Shigenori OGIHARA）
3
 End-Paleozoic Mass Extinction and Environmental Change in the Superocean:The First Recognized M-W Boundary in Plaeo-atoll Limestone （Yukio ISOZAKI and Ayano OTA）
4
 Cattle-ranching Industry in the Texas Panhandle Spatio-temporal Gravity Changes（Isao SAITO and Noritaka YAGASAKI