A dislocation is spoken of as a downthrow or an upcast, according to the direction in which it is approached.
"Geology"
James Geikie
What was it like, that strange country which you visited, and from which you are so marvellously returned to me like a stone upcast by a crater?"
"Melomaniacs"
James Huneker
Suddenly the child stretched out his hands to him, and with upcast, beseeching face, and eyes that seemed to be seeing far off, came close to his knee.
"Weighed and Wanting"
George MacDonald