重慶際華拍賣有限公司
重慶際華拍賣有限公司，為藏品強大的傳播效應向各位買家推薦經國家一級鑒定專家甄選的藝術珍品，為藏家牽線搭橋，讓千百件藝術珍品價值被發掘與重視，在拍賣會上得以高價成交。
【名稱】 木化石
【規格】 重：16.3kg
【類別】 雜項
藏品編號【JH268】
木化石又稱硅化木，是地質歷史時期的樹木經歷地質變遷，最后埋藏在地層中，經歷地下水的化學交換、填充作用，從而這些化學物質結晶沉積在樹木的木質部分，將樹木的原始結構保留下來，于是就形成為木化石。
樹木被泥沙埋藏后，含豐富硅質成分的地下水溶液一邊溶解樹木的木質成分，一邊將自己攜帶的硅質成分沉淀于所溶解的孔洞中，發生物質交換替代現象。
樹木的原來成分已蕩然無存，全部由含硅鈣成分的石質所取代。之后，經過壓實、固結、成巖，原來的樹木就完全變成了堅硬的石頭木化石。
此木化石呈黃褐色，可清晰看到木質結構和紋理已呈現玉石質感，玉化程度達30%左右。樹木保存為化石的條件極為苛刻，先決條件是其樹干與空氣隔絕，木質不易腐爛，在漫長的地質作用過程中被含硅鈣物質交換替代，替換的過程保留了木質的纖維結構和樹干的外形，使樹木變成化石。因此，樹木成為化石的幾率非常小。
樹化石不僅展現了自身斑斕多姿的特征，還記錄和見證著地質變遷和物種衍化，為人們研究古植物及古生物史以及古代地質和氣候變化提供了珍貴線索。
Chongqing JiHua auction co. LTD
Chongqing Ji Hua auctions limited company, it is to collect powerful transmission effect to recommend to each buy a country to choose art curiums through expert of appraisal of a class of country to buy, draw a line to build a bridge for collector, let value of 1000 art curiums be discovered and take seriously, be able to clinch a deal with high price on auction.
[Name] Wood fossil
[Specification] Weight: 16.3kg
[Category] Miscellaneous
NO.[JH268]
Wood fossils, also known as silicified wood, are geological changes in the geological history of the trees, and finally buried in the stratum, undergoing chemical exchange and filling of groundwater, so that these chemicals are crystallized in the woody part of the trees, retaining the original structure of the trees. Down, so it is formed into wood fossils.
After the trees are buried in the mud, the groundwater solution rich in siliceous components dissolves the wood components of the trees, and deposits the siliceous components carried by them in the dissolved pores to replace the substances.
The original ingredients of the trees have disappeared, and all are replaced by stone containing silicon and calcium. Afterwards, after compaction, consolidation, and diagenesis, the original trees were completely turned into hard stone fossils.
The wood fossil is yellowish brown, and it can be clearly seen that the wooden structure and texture have a jade texture, and the degree of jade is about 30%. The conditions for the preservation of trees as fossils are extremely harsh. The prerequisite is that the trunk is isolated from the air, the wood is not easily rotted, and is replaced by the exchange of silicon-silicate materials during the long geological process. The replacement process preserves the fibrous structure of the wood and the shape of the trunk. To make trees into fossils. Therefore, the probability of trees becoming fossils is very small.
Tree fossils not only display their own colorful features, but also record and witness geological changes and species derivation, providing valuable clues for people to study ancient plants and paleontological history as well as ancient geological and climate change.
