Search results
Results from the WOW.Com Content Network
The Walcott–Rust quarry, in Herkimer County, New York, is an excellent example of an obrution (rapid burial or "smothered") Lagerstätte. Unique preservation of trilobite appendages resulted from early consolidation (cementation) of the surrounding rock, followed by spar filling of the interior cavity within the appendages .
Walcott-Rust Quarry. about 455? Ma New York, US This site is an excellent example of an obrution (rapid burial or "smothered") Lagerstätte. Unique preservation of trilobite appendages resulted from early cementation of the surrounding rock and spar filling of the interior cavity of the appendages. Isotelus gigas, a large asaphid trilobite
Chile Bar Slate company quarry, off of highway CA193 next to the American River near Placerville, California; Limestone quarry near Auburn, California of the Mountain Quarries Company of San Francisco, a subsidiary of Pacific Portland Cement Company, near confluence of the North Fork and the Middle Fork of the American River.
Spectacularly preserved trilobite fossils, often showing soft body parts (legs, gills, antennae, etc.) have been found in British Columbia, Canada (the Cambrian Burgess Shale and similar localities); New York, U.S.A. (Ordovician Walcott–Rust quarry, near Russia, and Beecher's Trilobite Bed, near Rome); China (Lower Cambrian Maotianshan Shales ...
For premium support please call: 800-290-4726 more ways to reach us
The Cockeysville Marble is a Precambrian, Cambrian, or Ordovician marble formation in Baltimore, Carroll, Harford and Howard Counties, Maryland. It is described as a predominantly metadolomite, calc-schist, and calcite marble, with calc-gneiss and calc-silicate marble being widespread but minor.
Rock blasting in Finland. Drilling and blasting is the controlled use of explosives and other methods, such as gas pressure blasting pyrotechnics, to break rock for excavation.
Charles Doolittle Walcott (March 31, 1850 – February 9, 1927) was an American paleontologist, administrator of the Smithsonian Institution from 1907 to 1927, and director of the United States Geological Survey.