Latest Issue

Journal of Geography (Chigaku Zasshi), 2016 Vol.125 No.2

Eastern Grand Canyon from Desert View (Arizona, USA)

The Paleozoic strata deposited in the shallow sea and dunes along the western margin of Pangea occur as almost horizontal beds, ornamenting the 2,000m high Colorado plateau surface. Rapid uplift induced a pre-existing meandering river system to incise rocks quickly, carving a V-profiled canyon. The uplift has likely been driven by an uprising movement in the upper mantle; nonetheless, the well-known steep cliffs will soon change into boring gentle slopes immediately after this uplift stops. In contrast to the magnificent view of various strata at a glance, the strata themselves are not unique, as they can be traced extensively in the surrounding areas.
 Turing off Interstate Highway 40 (the old Route 66) to the north, visitors can easily reach the southern rim of the canyon by car, traveling to the Mather Point and/or Bright Angel Trailhead, and enjoy the familiar authentic views. By driving east for one hour or less, visitors can reach Desert View to observe the eastern part of the Grand Canyon and can see the meandering stream of the Colorado River itself in a widened valley. The evening view from this vista point will give a slightly different impression of the Grand Canyon. Some visitors may recognize the Great Unconformity between the horizontal Cambrian beds and the underlying Precambrian units.

(Photograph and explanation: Yukio ISOZAKI)


Original Articles

Changes in Precipitation Distribution Associated with Abrupt Warming in Winter at the End of the 1980s and the Effects of Surface Pressure Patterns

Teruaki ITO and Kenichi UENO

Journal of Geography (Chigaku Zasshi), 2016, 125(2), 185.

DOI:10.5026/jgeography.125.185

Cooling and Denudation History of the Tsuruga Body of Kojaku Granite, Southwest Japan, Constrained from Multi-system Thermochronology

Shigeru SUEOKA, Koji UMEDA, Ken-ichi YASUE, Masakazu NIWA, Koji SHIMADA, Tsuneari ISHIMARU, Tohru DANHARA, Hideki IWANO and Koshi YAGI

Journal of Geography (Chigaku Zasshi), 2016, 125(2), 201.

DOI:10.5026/jgeography.125.201

Tectonic Geomorphology and Subsurface Structure of the Ichinoseki–Ishikoshi Flexure Line, Northeast Japan

Kyoko KAGOHARA, Yoshinori TASHIRO, Hideki KOSAKA, Kohei ABE, Eiji NAKAYAMA, Atsushi MIWA and Toshifumi IMAIZUMI

Journal of Geography (Chigaku Zasshi), 2016, 125(2), 221.

DOI:10.5026/jgeography.125.221

Short Article

Systematic Age Gap of Radiocarbon Dates between Organic Bulk Sediment Samples and Fossil Samples of Animal and Plant in Holocene Core Sediments and Their Causes

Daisuke ISHIMURA, Takahiro MIYAUCHI, Ryosuke HAYASE, Keiichi OHARA and Tsuyoshi YAMAICHI

Journal of Geography (Chigaku Zasshi), 2016, 125(2), 243.

DOI:10.5026/jgeography.125.243

Letters

Japanese Translation of “Ueber die wirthschaftlichen Verhältnisse Japans und die geologische Aufname des Landes” (E. Naumann, 1880)

Naotoshi YAMADA and Michiko YAJIMA

Journal of Geography (Chigaku Zasshi), 2016, 125(2), 257.

DOI:10.5026/jgeography.125.257

Trends of Geosciences after the Pacific War in Japan, 1945 to 1965 Part 4

Editorial Committee of History of Geosciences in Japan Tokyo Geographical Society

Journal of Geography (Chigaku Zasshi), 2016, 125(2), 269.

DOI:10.5026/jgeography.125.269

International Trends in Mountain Studies, “Perth III: Mountains of Our Future Earth”

Kenichi UENO and Teiji WATANABE

Journal of Geography (Chigaku Zasshi), 2016, 125(2), 291.

DOI:10.5026/jgeography.125.291

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