4. HOW OLD IS THE EARTH?
• Age of Chondrites à ± 4.54 Byr
(PaOerson et al., 1955; Allegre
et al., 1995; Dalrymple, 1994) hOps://meteorites.asu.edu/
Effect of Asteroid impact
googlemap
hOps://apod.nasa.gov/
Chondrite rock
5. COMPARED TO THE MARS
• Age of MarIan meteorites à 4.42 Byr (Pb-Pb, Belluci et al., 2015)
hOp://www.esa.int/
USGS
hOp://www.nasa.gov/
12. • Total of 10 topic of research study in JARE 58
1. Meteorological observaIon
2. Atmospheric observaIon
3. Upper atmospheric physics
4. Penguin
5. Terrestrial biology
6. Oceanography
7. Geophysics
8. Tidal observaIon
9. Geodesy
10. Geology
• With total member of 80 members including engineer, construcIon, IT, chef, maintenance,
school teacher, government officer, etc.
• ExpediIon start on 27 Nov 2016 – 20 March 2017 (± 4 month) for summer party and unIl 20
March 2018 for winter party (1 year, 4 month)
• Approximately 1 month ship voyage to AntarcIca, 2 month on land, and 1 month ship voyage
to Australia
• Chief expediIon JARE 58: Prof. Yoichi Motoyoshi (NIPR)
14. Antarctic Continent
• Located in South Pole
• 14 Million Km2 (5th larger aper
Asia, Africa, North America &
South America). Approx. 7x
Indonesia.
• 98% covered by ice
• Climate data in Syowa StaIon:
Syowa StaIon
16. ANTARCTICA AS KEY ROLE OF THE PLATE TECTONICS
• AntarcIc discoveries
of glossopteris floras
by the expediIon
1885 – 1909
• Later, Wegener 1912
proposed ConInental
Drip the embryo of
Plate Tectonics
18. Recent zircon SHRIMP U-Pb data from other
area of the Napier Complex
Locali*es of >3600 Ma~ inherited/protoliths
Locali*es of c.3000 Ma~ protoliths
Locali*es of c.3300 Ma~ protoliths
20. Discovery of ultra high temperature (UHT) rock
First report of the natural occurrence of
Sapphirine+quartz from Napier Complex
by Dallwitz (1968)
which indicates metamorphic T >1000ºC
based on the experimental constraints
by Hensen & Green (1971, 1972, 1973) sapphirine
Spr
Qtz
Qtz
Opx