Lawrenceville Dome (New)
Part of the La Salle Anticlinorium
Location
Central Lawrence County (H-8)
References
None
Description
The name Lawrenceville Dome is given to the large enclosed structural high located just south of the city of Lawrenceville mostly in T3N, R12W, and the western part of T3N, R11W. This dome is evident on maps of several structural horizons, but it is portrayed best on maps of the Beech Creek ("Barlow") Limestone (fig. 19). On this horizon the dome is approximately 6 miles (10 km) north to south, and 3 to 4 miles (5-6.5 km) east to west. It shows closure of more than 100 feet (30 m). Closure is approximately 50 feet (15 m) on the Pennsylvanian Herrin Coal Member (Potter 1956). The Lawrenceville Dome is an asymmetrical structure, roughly rectangular in outline, and has steep west and south flanks and gently dipping, uneven north and east flanks. The south flank may be faulted. The highest point on the dome is near the southwest comer of Section 26, T3N, R12W. This is an important oil-producing structure, but production figures from the dome are not separately tabulated.
