A5057672573- Geological and Geochemical Analysis
- Geomagnetism and Paleomagnetism Studies
- Geological and Geophysical Studies
- Geology and Paleoclimatology Research
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Paleontology and Stratigraphy of Fossils
- Geophysical and Geoelectrical Methods
- Geological formations and processes
- Geological Studies and Exploration
- Magnetic and Electromagnetic Effects
- Geophysics and Gravity Measurements
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Geologic Mapping
- Earthquake Detection and Analysis
- Seismic Waves and Analysis
- Marine and environmental studies
- Paleontology and Evolutionary Biology
- Methane Hydrates and Related Phenomena
- Astro and Planetary Science
- Geotechnical and construction materials studies
- Solar and Space Plasma Dynamics
- African Botany and Ecology Studies
- Geological and Geophysical Studies Worldwide
- Planetary Science and Exploration
Kobe University
2011-2025
Geospatial Information Authority of Japan
2020-2023
Kyoto University
1976-1986
Osaka University
1975-1976
Miocene volcanic rocks have been sampled from the San'in district in central part of southwest Japan. Reliable palaeomagnetic direction and K-Ar dating data obtained 28 localities. A clockwise deflection declination (D = 38.5°) is observed Kawai Formation having an age 16.1 ± 1.4 Ma, whereas a northerly formations younger than 14.2 0.6 Ma. These indicate that Japan had ceased rotational motion by about 14 When compared with amount rotation estimated Cretaceous data, it apparent more 80 per...
Abstract Paleomagnetic studies facilitate an understanding of the evolution Japan Arc in Cenozoic times from perspective tectonic movement. The rifted Asian continent middle Miocene, while East Asia, including Arc, moved northward at same time. rifting phenomenon is described by differential rotation Southwest and Northeast Japan. was rotated clockwise through about 45° counter‐clockwise 40°. This occurred concurrently 15 Ma. Eighty percent completed during a period 1.8 million years. These...
A palaeomagnetic study was undertaken for Cretaceous red beds and granitic rocks of three geological provinces (the Lhasa, the Qiangtang Sichuan) along a road between Chengdu Lhasa in eastern Tibet an attempt to determine aspects deformation SE Asia. High-temperature characteristic directions were isolated from 20 sites. The tilt corrected data Terrane at Markam (29.7°N, 98.6°E) exhibit largely clockwise deflected declinations with steep inclinations (D= 48.2°, I= 49.0°, α95= 8.8°), whereas...
Lower to Middle Cretaceous red sandstones were sampled at four localities in the Lanpin-Simao fold belt of Shan-Thai Block describe its regional deformational features. Most samples revealed a characteristic remanent magnetization with unblocking temperatures around 680 °C. Primary natures are ascertained through positive test. A tilt-corrected formation-mean direction for Jingdong (24.5°N, 100.8°E) locality, which is located distance 25 km from Ailaoshan–Red River Fault, northerly...