The name for a small igneous rock body emplaced at shallow depths by uplift and arching overlying older strata is a laccolith.

Here's why:

* Laccolith: A laccolith is a mushroom-shaped igneous intrusion that forces its way between layers of sedimentary rock, causing the overlying strata to arch upwards. The name comes from the Greek words "lakkos" (pit or hollow) and "lithos" (stone).

Let me know if you'd like to know more about other types of igneous intrusions!