Meanings of lying black in English

The city detached itself insensibly from them, lying black behind.

I saw the blood soaking all his garments, lying black on the ground about him.

So it was quite dark when he came past Undern Pool, lying black and ghastly in its ring of skeleton trees.

For some time we observed something lying black and huddled in the scuppers, which at last heaved a little and moaned aloud.

The shore in this part is mostly high and cliffy; and under the cliffs were lying black lumps, apparently of slaty stone, rounded by attrition.