basement block

基本解释

The lowest megalayer is the low-density block basement.
最下层是低密度块体基底层。
White Tiger oilfield, located on a faulted basement block along the Lower Cenozoic central uplift belt in Cuu Long basin, Vietnam, is mainly composed of granite and granodiorite.
白虎油田位于越南东南兰龙盆地早新生界中央隆起带基岩断块，以花岗岩和花岗闪长岩为主。
The upper Precambrian basement of the Cathaysia block in southwestern Zhejiang and northwestern Fujian Provinces was mainly composed of Longquan Group, Mamianshan Group and Wanquan Groups.
浙闽地区华夏地块前寒武纪上基底主要由出露于闽西北和浙西南的马面山群、万全群和龙泉群组成。

It also closed the private Spanish Hospital, a complex that covers an entire city block, after waters rushed into the basement, cutting power and destroying X-ray machines and other diagnostic equipment.
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