送交者: 一默 于 May 18, 2008 21:05:45:
回答: 中国, 欧洲和美国的科学家们中的中国科学家们应有名有姓. WHO ARE THEY? 由 lala 于 May 18, 2008 20:27:16:
学术文章,但地点说的很具体:北川。
The Beichuan and Pengguan faults have experienced surface
rupture during the latest Pleistocene and at some locations
during the Holocene. The faults are sufficiently long to
sustain a strong ground-shaking earthquake, making them
potentially serious sources of regional seismic hazard.
http://www.geologie.ens.fr/~longmenshan/bibliography/LongmenShan/densmore_etal_07.pdf
Conclusions
We have documented Quaternary activity on a set of
large northeast-striking faults that parallel the eastern margin
of the Tibetan Plateau, using a combination of fieldobservations, photo and image interpretation, and 10Be
exposure dating of offset depositional landforms. The
northeast-trending Beichuan, Pengguan, and Dayi faults,
which parallel the eastern margin of the Tibetan Plateau,
have been active in the latest Quaternary with a dominantly
dextral sense of slip. Apparent throw rates are highly
spatially variable but are typically <1 mm yr1. Compelling
and widespread geomorphic evidence for dominant dextral
strike-slip displacement suggests to us that total displacement
rates may be at least several millimeters per year. The
Beichuan and Pengguan faults have experienced surface
rupture during the latest Pleistocene and at some locations
during the Holocene. The faults are sufficiently long to
sustain a strong ground-shaking earthquake, making them
potentially serious sources of regional seismic hazard.