Aegirine-augite Hyalo-rhyolite from Tokachi, Hokkaido

Cryptosporidium infection of cattle in the Tokachi district, Hokkaido.

The prevalence of Cryptosporidium infection was examined in 480 healthy cattle (0-39 months old) in the Tokachi district in Hokkaido during the period from June to September in 2000 and from June to July in 2001. C. parvum oocysts were detected in 6 of 50 cattle (0-2 months old) in 2001; while C. muris was detected in 2 of 56 cattle (6-8 months old) in 2001, in 1 of 15 cattle (9-11 months old) ...

Results of subionospheric radio LF monitoring prior to the Tokachi (M=8, Hokkaido, 25 September 2003) earthquake

Results of simultaneous LF subionospheric monitoring over two different propagation paths prior to the very strong Tokachi earthquake (near the east coast of Hokkaido Island, 25 September 2003) of magnitude 8.3 are presented firstly. Nighttime amplitude fluctuations of the Japanese Time Standard Transmitter (JG2AS, 40 kHz) signal received at Moshiri (Japan, 142 E, 44 N) and at PetropavlovskKamc...

Titanian aegirine in a teschenite sill

T w o series of pyroxenes have been found in a layered teschenite sill, 22 m thick, emplaced in Late Permian coal measures in the Sydney Basin, New South Wales, Australia. The sill consists of 12 m of homogeneous teschenite, overlain by 6 m of picrite, then by 4 m of a layered sequence. The layering unit of this sequence is teschenite, a pyroxene-rich layer and a narrow leucocratic band. A whol...

Shock compression and isentropic release of rhyolite

Shock-wave equation of state of rhyolite

We have obtained new shock-wave equation of state (EOS) and release adiabat data for rhyolite. These data are combined with those of Swegle (1989, 1990) to give an experimental Hugoniot which is described by Us=2.53(±0.08)+3.393(±0.37)up for up<0.48 km s−1 , Us=3.85(±0.05)+0.65(±0.03)up for 0.48≤up<2.29 km s−1 , Us=1.52(±0.08)+1.67(±0.02)up for 2.29≤up<4.37 km s−1 , and Us=3.40(±034)+ 1.24(±0.0...