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quaquaversal adj.【地質學;地理學】(地層從中心)向四方傾斜的。a...

quarantine

The mechanical genesis of the complicated rock mass is because several times of tectonism in pro - period made the structure of rock mass in the right dam foundation damaged seriously and rock mass alteration made its mechanical character more anisotropy . after that the fractures in the right dam foundation slope were stretched at the beginning of the quaternary period because in the period yakouhoushan mountain quaquaversal dome was blowups quickly . at the same time , the valley trenching of lancang river reach to 800 - 1000 meter in altitude at the right bank in nuozadu dam site 導致右岸巖體復雜化的成因是,右岸巖體在早期遭受了多期構造作用和巖體蝕變的基礎上,第四紀早期丫口后山穹隆的快速隆起與當時河谷下切至800m 1000m高程這一特殊因素組合引起了右岸巖體沿原有的斷裂(裂隙)張開,使地下水等風化營力能夠到達坡體較深部位,經過長期的風化卸荷作用,形成了右岸復雜巖體。