Well, piezoelectric action may
NOT be the big player in earthquake precursors. It appears I may
have presented an erroneous postulate. From my original post,
Quote:
Is it reasonable to postulate that the "electrical output" of an earthquake could be dependent upon
whether or not it occurred in an area (depth) where the polar axes are strongly aligned, and of course,
the magnitude of the pressure change.
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Piezoelectric action may be present but it might be the lesser of the actions. The article below is dated August 2001.
Freund
"They (positive holes) can cross grain boundaries nearly unimpeded. Therefore, they can carry currents
through otherwise insulating rocks." There are enough other revelations in the report to give us pause to
think just how much we do not know about the characteristics of many materials.
A report to be released in September 2004 describes laboratory tests wherein a Calif. quartz bearing
granite and quartz-free lower crustal anorthosite from Larvik, Norway were subjected to very high
pressure. It essentially confirms that rock turns into a semi-conductor when subjected to extreme stress.
The report also indicates the current generated during the 1999 Chi-Chi earthquake could range from
10^6 to 10^8 amperes, that is a lot of amps.
Hopefully, I will get an official posting address soon after it is officially released. I received the information
after I made my postulate, thus asking or proposing something based upon erroneous assumptions can
get one better informed.
