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・ Petrie Bight Retaining Wall
・ Petrie Ice Rises
・ Petrie Island
・ Petrie Masonic Centre
・ Petrie Meston
・ Petrie Multiplier
・ Petrie Museum of Egyptian Archaeology
・ Petrie of Rochdale
・ Petrie polygon
・ Petrie Prize Lecture
・ Petrie railway station
・ Petrie Terrace Police Depot
・ Petrie Terrace, Queensland
・ Petrie, Queensland
・ Petriella
Petrifaction
・ Petrifaction (disambiguation)
・ Petrifaction in mythology and fiction
・ Petrified (disambiguation)
・ Petrified Dunes
・ Petrified Forest (California)
・ Petrified Forest (Sarmiento)
・ Petrified Forest Formation
・ Petrified Forest National Park
・ Petrified forest of Lesbos
・ Petrified forest, Khorixas
・ Petrified Sea Gardens
・ Petrified Springs fault
・ Petrified wood
・ Petrified/Remember the Name


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Petrifaction : ウィキペディア英語版
Petrifaction

In geology, petrifaction or petrification is the process by which organic material is converted into a fossil through the replacement of the original material and the filling of the original pore spaces with minerals. Petrified wood is a common result of this process, but all organisms, from bacteria to vertebrates, can be petrified (although harder, more durable matter such as bone, beaks, and shells survive the process better than softer remains such as muscle tissue, feathers, or skin). Petrification takes place through a combination of two similar processes: permineralization and replacement. These processes create replicas of the original specimen that are similar down to the microscopic level, and require a minimum of about 10,000 years to take place.
==Processes==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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