Many of the marine worms construct a tube either in soft sediment, or on hard surfaces including coral heads. (AmbergrisCaye.com)
Kathmandu's basin of soft sediments helped amplify low - frequency waves, as seen in its destructive effect on taller buildings, says Youssef Hashash, an earthquake engineer at the University of Illinois, Urbana - Champaign, and the lead author of a report published last week that documented the quake's damage to infrastructure. (sciencemag.org)
«His description of how to distinguish soft sediment from hard rock structures it not well written, up - to - date, or well referenced,» Karl Karlstrom, a geologist at the University of New Mexico who co-authored a 2014 paper on the age of the Grand Canyon, wrote in his review of the proposal for NPS. (sciencemag.org)