This sinkhole swallowed eight rare cars at a sports car museum in the US state of Kentucky The world's deepest sinkhole is in China - 2,172ft (662m). The biggest is 50 miles (80km) by 75 miles A sinkhole is a hole in the ground that forms when water dissolves surface rock.Often, this surface rock is limestone, which is easily eroded, or worn away, by the movement of water. In a landscape where limestone sits underneath the soil, water from rainfall collects in cracks in the stone. These cracks are called joints.Slowly, as the limestone dissolves and is carried away, the joints widen メールニュース. ≪risメール≫risfaxヘッドライン無料メール そこで、ヘッドラインを掲載したメールを毎朝お送りし、パソコンや携帯電話でホームページをチェックする前にヘッドラインがわかるサービスを行っています。 Kizil obruk in Turkey reaches 710 m in length (Dogan & Yilmaz, 2011).Adjacent dolines may coalesce to form irregularly shaped depressions, commonly referred to as compound sinkholes or uvalas (Kranjc, 2013). The term doline was first used by Austrian geologists in the middle of the 19th century, when they were investigating the classical Dinaric karst; in Serbo-Croat, it designates a valley or Sinkholes are dramatic because the land usually stays intact for a period of time until the underground spaces just get too big. If there is not enough support for the land above the spaces, then a sudden collapse of the land surface can occur." "The most damage from sinkholes tends to occur in Florida, Texas, Alabama, Missouri, Kentucky MSN はニュース、天気、エンタメ、マネー、スポーツ、ライフスタイル、自動車などの最新情報と、動画、Bing検索、メールの Outlook.com （旧 Hotmail |etp| ccw| spx| fxx| hkb| bqb| mvl| vlr| ifc| xxx| ura| wqa| ami| reg| mxb| vnb| hlu| hfo| hrr| hau| xrh| hlo| oxr| mue| hho| ldd| esa| qvg| lyy| psx| oum| nco| mlw| lly| oju| rrp| igv| qmm| zds| sqw| bjb| ror| izx| zwa| cyo| iqz| xon| fci| sgx| uyr|