Douglas Harper's Etymology Dictionary
1961, from astro- + Greek bleme "throw of a missile; wound caused by a missile," from ballein "to throw" (see ballistics).
Wiktionary
n. (context geology English) A pit-like structure created by an impacting meteoroid, asteroid or comet.
Usage examples of "astrobleme".
Far along the rim of the astrobleme, in both directions, she could see other such birds standing widely spaced, all looking into the dark-mirrored depths.
Only one astrobleme in Europe fit the description, a crater called the Ries that lay some 300 kilometers to the east, on the northern shore of the Danube River.
The structure called the Ries (or Rieskessel) is the subject of some controversy—one school of thought accepting it as an astrobleme, while another holds it to be the result of a cryptovolcanic explosion that brought to the surface “meteoritelike” materials.
I should say this entire valley constitutes a thermoflexic astrobleme," theorized Sighter.
One curving surface was almost smooth except for a large elongated astrobleme (he'd thought craters weren't supposed to form like that) which was the most remarkable feature of the unremarkable rock.
He was in Canada studying astroblemes, the scars from ancient meteor strikes, when the Mars Project sent out its first call for scientists.