Monadnock, cais toj ntawm bedrock sawv conspicuously saum cov theem ntawm ib puag ncig. Monadnocks raug tso tseg raws li erosional remnants vim lawv cov pob zeb resistant ntau dua; feem ntau lawv muaj quartzite lossis tsawg dua sib koom ua pob zeb loj heev volcanic.
Lub tsev Monadnock yog dab tsi?
Yuav kom ncaj ncees, Monadnock Tsev tsis yog ua los ntawm cib nkaus xwb. Ib cag ntawm hlau raft, ib lub hauv paus zais ntawm cam khwb cia thiab wrought hlau braces tiv thaiv cov masonry phab ntsa los ntawm sab hauv kom lub tsev tsis txhob ntog thaum lub sij hawm cua siab.
Lub Tsev Monadnock tau tsim thaum twg?
Sab qaum teb ib nrab, ua tiav hauv 1891 thiab tsim los ntawm Burnham & Root, muaj cov phab ntsa sab nrauv uas txheej cib rau saum cov cib, hauv kev coj noj coj ua. Tab sis nws txoj kev tsim kho kuj qhia txog kev nce qib hauv kev sim thaum lub sijhawm.
Dab tsi ua rau monadnock?
A monadnock tshwm sim thaum lub cev pob zeb tiv thaiv kev yaig, xws li Granite piv txwv, yog tsim hauv lub cev ntawm pob zeb softer uas yooj yim eroded, xws li limestone..
Lub tsev cib siab tshaj plaws hauv ntiaj teb yog dab tsi?
Cov qauv cib siab tshaj plaws yog the Anaconda Smelter Stack, lub tshuab hluav taws xob tsim los ntawm Anaconda Copper Mining Company ze Anaconda, Montana, Tebchaws Asmeskas. Lub cib smokestack sawv 169.2 m (555 ft) siab - 178.38 m (585 ft 1.5 in) suav nrog nws cov pob zeb.lub hauv paus pedestal - thiab yog 26.2 m (86 ft) dav ntawm nws lub hauv paus.
