10000: Portion of detailed geologic map of the Creedmoor quadrangle (Clark et al., 2002).  Virtual Field Trip stop 10000 is located in the Trcs/si2 unit of Clark et al. (2001).

 
Unit description: Trcs/si2 - sandstone with interbedded siltstone:  cyclical depositional sequences of whitish-yellow to grayish-pink to pale red, coarse- to very coarse-grained, trough cross-bedded lithic arkose that fines upward through yellow to reddish-brown, medium- to fine-grained sandstone, to reddish-brown, burrowed and rooted siltstone.  Bioturbation is usually surrounded by greenish-blue to gray reduction halos. Coarse-grained portions contain abundant muscovite, and basal gravel lags consist of clasts of quartz, crystalline rock clasts, and mudstone rip-ups.  In the Falls Lake area, the majority of the crystalline rock clasts are composed of diorite interpreted to have been sourced from the Beaverdam diorite-gabbro complex (Virtual field trip stops 10007 and 10008).

Detailed geologic map 10008 10006 10005 10004 10002 and 10003 10001 10007 10000

10000:  Rolling View State Recreation Area - View looking southwest toward shore showing outcrops of Triassic sandstones and interbedded siltstones.

Rolling View outcrops

10000:  Rolling View State Recreation Area - View looking south toward shore (farther down shore to east from above) of Triassic sandstones with interbedded siltstones.

Rolling View outcrops

10000:  Rolling View State Recreation Area -  View looking toward south (farther down shore to east from above) showing resistant sandstone interlayer weathering out of bank interlayered with siltstones.

Rolling View outcrop

10000: Rolling View State Recreation Area - View looking toward south showing relatively thick sandstone layer in siltstones.

Rolling View outcrop