Four artists contributed works to this exhibit of site-specific installations, including Mia Feuer, whose jackal-headed, missile-shaped, Styrofoam forms deliberately confound notions of lightness and heft; Talia Greene, who creates wallpaper that includes hand-drawn ants as an integral component; and Mariah Anne Johnson, who fills out empty spaces in the gallery with meticulously folded and stacked vintage fabrics. But the exhibit’s standout is Margaret Boozer. With a nod to the rigorous minimalism of Carl Andre and the earthworks of Robert Smithson, Boozer convinced the contractor digging up the old convention center site two blocks north of the gallery to let her remove samples from a subterranean bore of soil and rock. With gravels, clays and rocks in hand, she meticulously recreated a geologically accurate linear progression by laying them down in a tightly circumscribed ribbon on the gallery floor, ending with a few small logs that hadn’t touched air from the Cretaceous period, when dinosaurs roamed, until Boozer’s excavation. Her project exhibits intellectual heft by reflecting what literally undergirds the gallery, but it also benefits from a winning, how-she-did-it video, in which she comes off as an unpretentious geology geek who is most at ease hanging out with engineers and scientists.

The exhibition is on view noon to 6 p.m. Tuesday to Saturday to Nov. 5 at Flashpoint, 916 G St. NW. (202) 315-1305.