Leesburg conglomerate, sedimentary rock, Leesburg Virginia, this rock was used to make the columns in the statue room at the US
Leesburg conglomerate, sedimentary rock, Leesburg Virginia, this rock was used to make the columns in the statue room at the US capitol building More accurate description: Leesburg Limestone Conglomerate Member of the Ball's bluff siltstone. It consists of fragments of lower Paleozoic limestone, dolomitic limestone, quartzite, quartz, schist, slate, and greenstone in a clayey matrix cemented by calcite. It is metamorphosed into a light-gray marble called Potomac marble. It occurs in the northwestern part of the Culpeper basin where it is intercalated with Balls Bluff Siltstone. Thickness ranges from 190 m (630 ft) in the Frederick valley, MD., to 1,070 m (3,500 ft) in Montgomery Co., MD.
Size: 5760px × 3840px
Photo credit: © John Cancalosi / Alamy / Afripics
License: Licensed
Model Released: No
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