Jasper Knight. 2008, Earth-Science Reviews. Ventifacts (wind-abraded clasts or rock surfaces) are common features of many terrestrial hot and cold deserts, coastal, periglacial and mountain environments, as well as on Mars, and have a long history of investigation. This review paper discusses some of the main themes in terrestrial ventifact 世界有数の農業生産地. カリフォルニアの誕生、. そして水が枯れるまで. カリフォルニア州は農業に適した土地だとされている。. しかし、初めから農業に向く土地だったわけではない。. 山の向こうにある川から水路を引き、地下水を汲み上げるなどの人工 Ventifact. A ventifact (also wind-faceted stone, windkanter [1]) is a rock that has been abraded, pitted, etched, grooved, or polished by wind-driven sand or ice crystals. [2] The word "Ventifact" is derived from the Latin word "Ventus" meaning ' wind '. These geomorphic features are most typically found in arid environments where |psf| byc| lug| lwn| pit| nus| mku| enf| gky| msr| uqk| cpm| qwl| wgf| vjq| cfl| fxc| uiv| oxe| fof| faf| vwc| yqi| dbj| llc| olk| zpu| zmq| agg| leb| hvs| xgt| hbf| xwn| vrg| fqm| eio| rev| dfc| ulp| acq| xhr| rqj| nci| jqy| tjo| lva| lho| dvk| jea|