Despite vast scientific inquiry, the evolution of Appalachian Mountain topography in eastern
North America has yet to be robustly explained. After a century and a half of investigation …

We present a new high-resolution cyclostratigraphic age model assembled from
paleomagnetic and rock-magnetic (anhysteretic remanent magnetization, ARM, and …

Detrital zircon U–Pb analysis is an effective approach for investigating sediment provenance
by relating crystallization age to potential crystalline source terranes. Studies of large …

We show that long-recognized seismicity in the central Virginia seismic zone of the eastern
North American intraplate setting arises primarily from tectonic processes predicted by new …

The position and mobility of drainage divides is an expression of exogenic landscape
forcing and autogenic channel network processes integrated across a range of scales. At the …

The release of geogenic elements to water supplies is an issue of worldwide concern.
Because these elements occur naturally and are often present in a variety of geologic …

The National Cooperative Geologic Mapping Program (NCGMP) published a strategic plan
titled “Renewing the National Cooperative Geologic Mapping Program as the Nation's …

Detailed geologic mapping and new SHRIMP (sensitive high-resolution ion microprobe) U-
Pb zircon, Ar/Ar, Lu-Hf, 14 C, luminescence (optically stimulated), thermochronology (fission …

Despite numerous applications of physically-based models for incised landscapes, their
applicability for overland flow on unchanneled surfaces is not known. This work challenges …

Abstract The Fall Line (formally" Tidewater Fall Line") separates the more resistant igneous,
metamorphic, and consolidated sedimentary rocks of the Piedmont from the typically …