INFOLDED METASEDIMENTARY ROCKS NEAR THE AXIAL ZONE OF THE CATOCTIN MOUNTAIN-BLUE RIDGE ANTICLINORIUM IN VIRGINIA

摘要

A belt of metasedimentary rocks about 60 miles long and from a half to 2 miles wide occurs in the northwestern Piedmont of Virginia. It lies along or near the axis of the Catoctin Mountain-Blue Ridge anticlinorium about midway between the Late Precambrian-Early Cambrian formations in the Blue Ridge and Late Precambrian and possibly younger formations in the Piedmont. The belt of rocks occurs as an infold that is locally faulted. The infold is overturned toward the northwest in the southwestern end but becomes open to the northeast. The metasedimentary rocks are equivalent in part to the Lynchburg and Swift Run formations.