basement block

基本解释

The lowest megalayer is the low-density block basement.
最下層是低密度塊躰基底層。
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.
白虎油田位於越南東南蘭龍盆地早新生界中央隆起帶基巖斷塊，以花崗巖和花崗閃長巖爲主。
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.
浙閩地區華夏地塊前寒武紀上基底主要由出露於閩西北和浙西南的馬麪山群、萬全群和龍泉群組成。

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.
NPR: Argentina: Flooding From Torrential Rains Kill 52