N. Katsuta, I. Shimizu, H. Helmstaedt, M. Takano, S. Kawakami, M. Kumazawa
Journal of Metamorphic Geology 30 457-472 Jun 2012
The Archean (2.8Ga) Banded Iron Formation (BIF) of the Bell Lake region of Yellowknife greenstone belt, Canada is recrystallized to metamorphic assemblages of the amphibolite facies. This BIF is characterized by centimetre-scale Fe-rich and Si-ric...
B. Tojo, N. Katsuta, M. Takano, S. Kawakami, T. Ohno
Geological Society Special Publication 286 103-113 Dec 2007
The lower cap carbonate (Rasthof Formation) overlies Neoproterozoic glacial deposits (Chuos Formation) and is exposed in the Khowarib-Warmquelle area in Northern Namibia. The basal 14.2 m part of the Rasthof Formation (total about 220 m) consists ...
N. Katsuta, B. Tojo, M. Takano, H. Yoshioka, S. Kawakami, T. Ohno, M. Kumazawa
Geological Society Special Publication 286 27-34 Dec 2007
Environmental changes were flagged by lamination within Precambrian sedimentary rocks sequences using a high-resolution method. A continuous sample was collected and embedded in epoxy resin to form sample plates in order to investigate 2D laminati...
Geological Society Special Publication 286 399-404 Dec 2007
Vendobiont type fossils are characterized by possessing 'gliding symmetry', in which quilts of the different vanes consisting the body of the Vendobionta meet along the seam with small offset. Because two, three or more vanes are joined along this...
Fullerenes Nanotubes and Carbon Nanostructures 15 127-133 Mar 2007
Measurement has been made of Ir content in samples collected from lower Triassic layer in Gifu, central Japan, rich in fullerenes, in order to investigate if they are correlated with extraterrestrial events. The coincidence gamma ray measurement m...
Field study of lichens occurring in Gifu Prefecture has been performed. About 150 genera and 350 species have been identified. The web site of lichen database showing photos of habitats and microscope images has been developed. High school student...
The purpose of this study is to propose new educational activities in terms of the museum exhibitions presented in the Precambrian Museum in Hichiso-town, Gifu Prefecture and our study on the coevolution of life and the earth. Although many famous...
The aim of this research is development of learning software on the activities of International Space Station for science education. We have developed web pages entitled "Observation Navigator of Artificial Satellites". In these pages, we present ...
Prediction of large-scale landslides with more than one million cubic meters of landslide debris is important in central Japan with steep-slope topography, because they cause heavy damages on infrastrucutes. Three largest landslides (Nan'notani, N...
The purpose of this study is to test the Snowball Earth hypothesis, which suggests that the entire Earth surface was covered with icesheet in several times during Neoproterozoic era. For this purpose, we visited Namibia in winter seasons from 2001...
