Скачать или смотреть Wood Fossils Park, Mandro, Jharkhand:

Mandro in Sahibganj District of Jharkhand State, India is known for its abundance of petrified wood and floral impressions from the Rajmahal Traps of Albian–Aptian age.
Fossil wood, also known as petrified wood, is the preserved remains of terrestrial wood that has been replaced by minerals, often silica, over millions of years. This process, called permineralization and replacement, essentially turns the wood into stone while preserving some of its original structure. Fossil wood is a type of fossil that provides valuable insights into past plant life and environments. Fossil wood can be used to date the sediments in which they are found. While often used interchangeably, "fossilized wood" and "petrified wood" have subtle differences Fossilized wood" is a broad term encompassing any wood preserved in the fossil record, while "petrified wood" specifically refers to wood that has undergone a mineralization process, where the original wood's cells are replaced by minerals. Essentially, all petrified wood is fossilized, but not all fossilized wood is petrified. Wood that has been preserved in the fossil record, which can include various forms of preservation beyond petrification is Fossilized Wood. Fossilized wood can include petrified wood, but also wood preserved in amber, as impressions in rock, or even in permafrost.
A specific type of fossilized wood where the original organic material has been replaced by minerals, usually silica (quartz, opal, or chalcedony) is Petrified Wood. Petrification occurs when wood is buried under sediment, and groundwater carrying dissolved minerals permeates the wood, replacing the original cellular structure. Petrified Forest National Park in Arizona is famous for its extensive petrified wood deposits.