The crevasse at the head of a glacier that separates the moving ice from the stationary ice is called a bergschrund .
(a glacier; separates; the moving ice; from the stationary ice) (The crevasse at the head of a glacier; is called; a bergschrund)
a glacier The crevasse at the head of a glacier
separates is called
the moving ice from the stationary ice
a bergschrund