Titlebook: Biodeterioration of Stone Surfaces; Lichens and Biofilms Larry L. St.Clair,Mark R. D. Seaward Book 2004 Springer Science+Business Media Dor

Metamorphosis

Limestone Stabilization Studies at a Maya Site in Belize,calcium carbonate. Degradation of archaeologically excavated stone structures in the humid, tropical environment of Belize is caused mainly by wind and water erosion and the wide cyclic variations of humidity and temperature. However, damage to the limestone is accelerated to varying extents by the

Throttle

Lichens and the Biodeterioration of Stonework: The Italian Experience,chen-substratum stratum interface on stonework of artistic value. This work presents a detailed, mainly bibliographical, review of research carried out to date on the lichen biodeterioration of Italian archeological and monumental stonework. This survey presents the main methodologies used in this f

引起痛苦

Deteriorative Effects of Lichens on Granite Monuments,results obtained from more than 100 samples demonstrate the importance of lichens in the weathering of granitic rocks since, among other effects, they give rise to (a) intense disaggregation of the substratum in contact with them, (b) dissolution of minerals and transformation of primary minerals in

哺乳动物

蛛丝

Lichens on Wyoming Sandstone,luding COLORMOD, a porosimetry measurement based on color mode analysis of images, obtained from thin sections with impregnating resin containing a blue dye. This technique also allows one to measure the porosity gradient. Porosity was less toward the outside, since in the outer layer lichens occlud

昏暗

怕失去钱

Lichen Biodeterioration at Inscription Rock, El Morro National Monument, Ramah, New Mexico, USA,s Inscription Rock, a large sandstone formation which has become a natural repository for more than 700 years of comments and notations recorded by travelers through the region. Recently, encroachment of lichens onto several inscription panels has been documented. Because lichens are known to decomp

LOPE

Ruptured-Disk

Biodeterioration of Prehistoric Rock Art and Issues in Site Preservation,ial, as paintings, or shallowly pecked or incised into the rock surface. Breakdown of the rock surface by lichens and other microflora can easily erase these images. Lichens and other damaging flora inhabit a wide variety of environments and have destroyed entire panels of rock art. Methods of liche

organic-matrix