The different rock associations of pyroxenite+ gabbro and troctolite+ gabbro in the accumulating complex are related to depth of formation of magmatic chambers and oxidation state of magma in the spreading ridge.

• 堆积杂岩中出现辉石岩+辉长岩和橄长岩+辉长岩的不同岩石组合则与堆积岩岩浆房出露的深度和氧化状态有关。