permineralization=petrification (in which rock-like minerals seep in slowly and replace the original organic tissues with silica, calcite or pyrite, forming a rock-like fossil - can preserve hard and soft parts - most bone and wood fossils are permineralized) تحول أجساد = التصخر (التي تشبه الصخور والمعادن ...
حقوق النشر © 2023.CDM كل الحقوق محفوظة.خريطة الموقع