The replacement of wood by calcite

Cyril Walter Greenland
1918 Economic Geology and The Bulletin of the Society of Economic Geologists  
A replacement phenomenon often observed in wood is that of silicification, and now so well known as scarcely to attract attenti.on, but its replacement by other non-metallic compounds is less frequent, and hence the occurrence of a case of complete calcification seems worthy of record. The ma,terial described here was collected by C. A. Warner from a point six miles north and two miles east of Russell, Kansas, and sent to the Geological Department at Cornell University. Mr. Warner states .that
more » ... arner states .that the fossilized wood here described formed ,the center of a three-foot concretion of lime carbonate, the latter lying in a bed of shale about 30 feet thick, .with a bed of limestone a,bout •o feet above .the concretion.
doi:10.2113/gsecongeo.13.2.116 fatcat:ivddqpi66bcuhcsjmbtzvlulmm