Sullivan Halipré

化石拍卖（收藏家内饰）

来自马达加斯加的极为完好保存的化石木片。地层时期：下侏罗世。色彩绚丽，木质纹理清晰且保存极好，质量真是出色。请注意，在木材裂缝中经过数百万年形成的美丽矿物晶体沉淀。这是来自马达加斯加阿姆比洛贝（Ambilobe）的圆形宽木化石（Araucaria）块。Araucaria是一种针叶树，属于包括现代猴嘴杉树在内的科。这块约2.2亿年的木化石已在两面切片并打磨，能够清晰看到内部木纹细节和美丽的色彩。木化石是指经置换作用而变为石头（化石化）的木材。在这一过程中，所有有机物被矿物质替代，但原有的结构，如年轮，大部分仍被保留。要发生此过程，木材需要埋藏在氧气含量低、能流动携带矿物质的水环境中，以便矿物质替代结构。颜色的形成是由化石化过程中水中存在的各种矿物质/杂质所致。例如，红色在很多情况下可归因于铁化合物，绿色则来自铜等，等等

A really well preserved fossil wood slice from Madagascar. Period Lower Jurassic. Beautiful colors, evident and beautifully preserved wood texture, truly excellent quality. 
Note the beautiful mineral crystallization created over millions of years inside the cracks of the wood
This is a wide round of petrified wood (Araucaria) from Ambilobe, Madagascar. Araucaria is a coniferous tree in the family that includes the modern Monkey Puzzle tree. This 220 million year old petrified wood has been sliced and polished on both sides, allowing the stunning inner wood detail and beautiful coloration to easily be seen.
Petrified wood is the name given to wood that has been turned into stone (fossilized) through the process of permineralization. In this process, all of the organic matter becomes replaced by minerals, while much of the original structure, such as tree rings, is retained. For this to happen, the wood needs to be buried in an environment low in oxygen to prevent decomposition and with flowing, mineral-laden water, so minerals may replace structures. The coloration is caused by various minerals/impurities present in the water during fossilization. For example, red colors in many cases can be attributed to iron compounds, greens due to copper, and so on

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木化石 - 化石木材 - 40 cm - 28 cm

侏罗纪， 下 （2.013 - 1.741 亿年） - 马达加斯加

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木化石 - 化石木材 - 40 cm - 28 cm

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